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841 Chestnut Street
Distribution of ?m^»,n
Submerged Aquatic Vegetation
in the Chesapeake Bay
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Distribution of Submerged Aquatic Vegetation in
the Chesapeake Bay and Tributaries and Chincoteague Bay -1989
by
Robert J. Orth and Judith F. Nowak
Virginia Institute of Marine Science
School of Marine Science
College of William and Mary
Gloucester Point, VA 23062
!:.; protect-.cn A
ul(on Resource
Funded by: National Oceanographic Atmospheric Administration
(Grant Nos. NA88AA-D-CZ-091, NA89AA-D-CZ-134
and C188-90-002)
Virginia Institute of Marine Science/School of Marine Science
U.S. Environmental Protection Agency (Grant X-003465-01-0,-1)
Maryland Department of Natural Resources
U.S. Fish and Wildlife Service
Allied-Signal Inc.
Final Report Submitted to: U.S. Environmental Protection Agency
Chesapeake Bay Program
Annapolis, MD 21403
June, 1990
Cover Photograph: Eelgrass beds in lower York River, Virginia. (Photograph by Damon Delistraty, Virginia Institute
of Marine Science, School of Marine Science, College of William and Mary.)
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CONTENTS
Page
TABLES iii
FIGURE iv
EXECUTIVE SUMMARY vi
ACKNOWLEDGEMENTS xi
INTRODUCTION 1
SAV SPECIES 2
METHODS 3
Introduction 3
Aerial photography 3
Mapping process 6
SAV perimeter digitization and area calculation 10
Tests of precision and accuracy 12
Calculation of SAV bed mean area 12
Standard operating procedures 13
Conversion of SAV Perimeter Points to Latitude & Longitude 13
Organizational provinces for analysis 15
Ground truth and other data bases 19
RESULTS 22
Data presentation 22
1989 Overview 22
Susquehanna Flats (Section 1) 40
Upper Eastern Shore (Section 2) 40
Upper Western Shore (Section 3) 40
Chester River (Section 4) 44
Central Western Shore (Section 5) 44
Eastern Bay (Section 6) 44
Choptank River (Section 7) 44
Patuxent River (Section 8) 49
Middle Western Shore (Section 9) 49
Lower Potomac River (Section 10) 49
Upper Potomac River (Section 11) 53
Middle Eastern Shore (Section 12) 53
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CONTENTS (CONTINUED)
Page
RESULTS (continued)
Mid-Bay Island Complex (Section 13) 53
Lower Eastern Shore (Section 14) 57
Reedville Region (Section 15) 57
Rappahannock River Complex (Section 16) 57
New Point Comfort Region (Section 17) 61
Mobjack Bay Complex (Section 18) 61
York River (Section 19) 61
Lower Western Shore (Section 20) 65
James River (Section 21) 65
Chincoteague Bay 65
LITERATURE CITED 69
APPENDICES 71
A, Species of submerged aquatic plants found in the
Chesapeake Bay and tributaries 72
B. Latitude and longitude coordinate points defining
the 21 major Chesapeake Bay sections and
Chincoteague Bay 73
C. Topographic quadrangles for the Chesapeake Bay and
Chincoteague Bay showing distribution, abundance
and ground truthing of SAV in 1989 77
D. Number of square meters of SAV for individual beds
and totals for density categories for each topographic
quadrangle in 1989 182
E. 1989 SAV ground truth data listed by topographic
quadrangle and by SAV bed cross referenced with
1987 SAV beds 214
11
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TABLES
Number Page
1 Guidelines for acquisition of aerial photographs
2 List of USGS 7.5 minute topographic quadrangles for
the Chesapeake Bay and Chincoteague Bay SAV study
areas and corresponding code numbers
3 Area descriptions for each of the 21 major sections in the
Chesapeake Bay SAV study area 17
4 Total area of SAV in hectares by USGS 7.5 minute
topographic quadrangle for 1987 and 1989 23
5 Number of hectares of SAV in 1987 and 1989 for the 21
major sections and three zones of the Chesapeake Bay
and for Chincoteague Bay 29
6 Number of square meters of SAV in 1989 for each quadrangle
of the 21 major sections in the Chesapeake Bay and of
Chincoteague Bay 30
ill
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FIGURES
Number Page
1 Map of Chesapeake Bay and tributaries with Upper, Middle and
Lower zones and locations of all SAV beds in 1989 viii
2 Total hectares SAV for the Upper, Middle and Lower zones
of the Chesapeake Bay in 1989 ix
3 Total hectares SAV in 1989 by section of the Chesapeake Bay x
4 Map of Chesapeake Bay, its tributaries and Chincoteague Bay
with approximate locations of flight lines for 1989 SAV photo-
graphy 4
5 Location of USGS 7.5 minute topographic quadrangles in the
Chesapeake Bay, its tributaries and Chincoteague Bay
with corresponding code numbers 7
6 Crown density scale used for determining density of SAV beds:
(1) very sparse, 0-10%; (2) sparse, 10-40%; (3) moderate,
40-70%; (4) dense, 70-100% 11
7 Location of Upper, Middle and Lower zones of the Chesapeake
Bay and the 21 major sections used for delineation of SAV
distribution patterns 16
8 Distribution of SAV in the Susquehanna Flats (Section 1) 41
9 Distribution of SAV in the Upper Eastern Shore (Section 2) 42
10 Distribution of SAV in the Upper Western Shore (Section 3) 43
11 Distribution of SAV in the Chester River (Section 4) 45
12 Distribution of SAV in the Central Western Shore (Section 5) 46
13 Distribution of SAV in the Eastern Bay (Section 6) 47
14 Distribution of SAV in the Choptank River (Section?) 48
15 Distribution of SAV in the Patuxent River (Section 8) 50
IV
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FIGURES (continued)
Number Page
16 Distribution of SAV in the Middle Western Shore (Section 9) 51
17 Distribution of SAV in the Lower Potomac River (Section 10) 52
18 Distribution of SAV in the Upper Potomac River (Section 11) 54
19 Distribution of SAV in the Middle Eastern Shore (Section 12) 55
20 Distribution of SAV in the Mid-Bay Island Complex (Section 13) .... 56
21 Distribution of SAV in the Lower Eastern Shore (Section 14) 58
22 Distribution of SAV in the Reedville Region (Section 15) 59
23 Distribution of SAV in the Rappahannock River Complex (Section 16) . 60
24 Distribution of SAV in the New Point Comfort Region (Section 17) ... 62
25 Distribution of SAV in the Mobjack Bay Complex (Section 18) 63
26 Distribution of SAV in the York River (Section 19) 64
27 Distribution of SAV in the Lower Western Shore (Section 20) 66
28 Distribution of SAV in the James River (Section 21) 67
29 Distribution of SAV in the Chincoteague Bay 68
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EXECUTIVE SUMMARY
The distribution of submerged aquatic vegetation, principally rooted vascular macrophytes,
during May to October 1989 in the Chesapeake Bay, its tributaries and Chincoteague Bay was
mapped at a scale of 1:24,000 using black and white aerial photography. SAV bed perimeter
information was digitized and stored in a computerized data base. Ground truth information
was obtained from the U. S. Geological Survey (USGS), the U. S. Fish and Wildlife Service
(USFWS), the University of Maryland Horn Point Environmental Laboratories, Harford
Community College and the College of William and Mary's Virginia Institute of Marine
Science/School of Marine Science. Citizen support via the U. S. Fish and Wildlife Service and
Chesapeake Bay Foundation, as well as the Maryland Charterboat Association via the
Maryland Department of Natural Resources Watermen's Assistance Program, provided
additional ground truth information.
In 1989 the Chesapeake Bay had 24,134 hectares of SAV with 2,458 (10%), 11,507 (48%) and
10,169 (42%) hectares occurring in the Upper, Middle and Lower Bay zones, respectively (Figs.
1 and 2).
Seventy-nine percent (1,945 hectares) of the SAV in the Upper Bay zone was located in the
Susquehanna Flats section (Fig. 3, Section 1). Nine species of SAV were documented by ground
truth surveys in this section, with Myriophyllum spicatum being dominant. Hydrilla
verticillata, a recently introduced exotic species, was also found in the Flats but occurred in
small isolated beds. Total hectares of SAV were reduced from that in 1987 in the Susquehanna
Flats section and beds were generally much less dense. Ninety-five percent of all SAV beds
were classified as very sparse (0-10% coverage) and no beds were classified as dense (70-100%
coverage). The Upper Eastern Shore section (Fig. 3, Section 2) had 308 hectares SAV located
principally in the Elk and lower Sassafras Rivers, Swan, Stillpond and Churn Creeks with
many of the same species being reported as in the Susquehanna Flats section. The Upper
Western Shore section (Fig. 3, Section 3) had 38 hectares SAV which was concentrated in
Saltpeter and Seneca Creeks with M. spicatum and Vallisneria americana being most
abundant. The Chester River section (Fig. 3, Section 4) had 167 hectares SAV which was most
abundant adjacent to Eastern Neck and Eastern Neck Island, and in the lower Chester River.
In this region Ruppia maritima was the most abundant of six species which were reported.
Forty-five percent (5,196 hectares) of the SAV in the Middle Bay zone was found in the
broad shoal area between Smith and Tangier islands in the Mid-Bay Island Complex (Tangier,
Smith, Southmarsh and Bloodsworth Islands - Fig. 3, Section 13) where R. maritima and
Zostera marina were present. Seventeen percent (1,998 hectares) of the SAV was present in the
Middle Eastern Shore section (Fig. 3, Section 12) primarily in the Barren Island-Honga River
area, the Big and Little Annemessex Rivers, and the lower section of the Manokin River.
Ruppia maritima was the dominant species reported for this area. Little or no SAV was
mapped or reported from the Central Western Shore, Middle Western Shore and Patuxent
River sections (Fig 3, Sections 5, 9 and 8, respectively).
The Middle Bay zone also includes the entire Potomac River where 2,614 hectares of SAV
were present in 1989. The Upper Potomac River section, including the tidal freshwater region
(Fig. 3, Section 11) had 1,998 hectares SAV with H. verticillata remaining the numerically
VI
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dominant species. Eight other species were recorded from the USGS and Citizen's surveys.
The Lower Potomac River section (Fig. 3, Section 10) had 616 hectares SAV with V. americana
and M. spicatum being the most frequently occurring species. Although the total abundance of
SAV in the upper Potomac River section increased from the 1987 level of 1,665 hectares, many
of the very dense beds declined from the Woodrow Wilson bridge to just below Piscataway
Creek. This decline was offset by large increases in SAV along both shores from Quantico
Creek to Aquia Creek.
SAV was abundant throughout the entire Lower Bay zone except for the James River.
Forty-five percent of SAV in the Lower Bay zone was found in the Lower Eastern Shore section
(Fig. 3, Section 14) around the Fox Islands and the mouths of major creeks (i.e. Cherrystone
Inlet, Hungars Creek, Mattawoman Creek, Occahannock Creek, Craddock Creek, Pungoteague
Creek and Onancock Creek). Along the western shore SAV was abundant in Mobjack Bay, the
Lower York River, Back River and the Drum Island Flats area adjacent to Plum Tree Island.
Both R. maritime, and Z. marina were abundant throughout the Lower Bay zone.
Ruppia maritima continued to increase in abundance in both the Piankatank and
Rappahannock rivers while Z. marina was present at several sites in both rivers resulting from
previously successful transplant efforts.
There were 2,310 hectares SAV in Chincoteague Bay in 1989 similar to 2,310 hectares in
1987. All of the SAV consisted of R. maritima and Z. marina which was located along the
eastern side of the bay behind Assateague Island.
Vll
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3940.0
3910.0
3840.0
3810.0
3740.0
3710.0
3640.0
i 1 1 r
SUSQUEHANNA R
CHESAPEAKE
BAY
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Figure 1. Map of the Chesapeake Bay and tributaries with Upper, Middle and Lower zones and
locations of all SAV beds in 1989. (SAV is shown in red. Latitude and longitude are
in decimal degrees along the vertical and horizontal axes, respectively.)
vm
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HECTARES OF SAV IN EACH ZONE
OF THE CHESAPEAKE BAY
1 1000 -i
10000 -
9000 -
8000 -
7000 -
o 6000 -
5000 -
O
o
4000 -
3000 -
2000 -
1000 -
UPPER MIDDLE LOWER
Figure 2. Total hectares of SAV for the Upper, Middle and Lower zones of the Chesapeake Bay
in 1989. (Refer to Figures 1 and 7 for zone locations.)
IX
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Hectares of SAV in 1989
by Section
5000
4000 -
~ 3000
o
0- 2000 -
o
o
1000-
UPPER
ZONE
MIDDLE
ZONE
LOWER
ZONE
9 10 11 12 13
SECTION NUUBER
14
15
1 7
1 8
19 20
21
Figure 3. Total hectares of SAV in 1989 by section of the Chesapeake Bay. (Refer to Figure 7,
Table 3 and Appendix B for section locations and boundaries.)
x
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ACKNOWLEDGEMENTS
We would like to gratefully acknowledge all federal and state agencies who financially
supported this project: the Maryland Department of Natural Resources (MD-DNR); the
Virginia Institute of Marine Science, School of Marine Science, College of William and Mary
(VIMS); the U. S. Fish and Wildlife Service (USFWS); the U. S. Environmental Protection
Agency (USEPA); and the National Oceanographic and Atmospheric Administration (NOAA),
as amended by the Office of Ocean and Coastal Resource Management, NOAA. Also, we thank
Allied - Signal, Inc. for providing supplemental funding for this work.
Acknowledgement would not be complete without commendation for the groups which
provided ground truthing of SAV beds which was used in conjunction with interpretation of the
1989 photography. USFWS conducted a survey and with the Chesapeake Bay Foundation
(CBF) also organized citizens to report locations and species composition of grassbeds around
the bay. In addition, members of the Maryland Charterboat Association were funded by the
MD-DNR to participate in the ground truthing program and contributed valuable information
on location and species composition of SAV beds in Maryland waters. J. Court Stevenson, Bill
Dennison, and Lori Staver of the University of Maryland, Horn Point Environmental
Laboratories (HPEL), and Stan Kollar of Harford Community College (HCC) provided ground
truth information for certain specific regions of the Maryland portion of the Bay. Nancy
Rybicki, R.T. Anderson and Virginia Carter of the U. S. Geological Survey (USGS) provided
ground truth information from the Potomac River. Ken Moore, Sheryl Robertson, Sharon
Dewing, Gene Silberhorn, Curtis Harper and Betty Berry of VIMS provided ground truth
information for the lower bay.
The production of this report required the dedication of numerous scientists, technicians,
artists, photographers, and others. The following people deserve a note of thanks: Adam
Frisch (Virginia Council on the Environment) for developing analytical procedures, and
computer software necessary for digital data analyses; Rich Batiuk, Ricky Price, Patsy Heasley
and Danny Elliot, USEPA-Chesapeake Bay Liaison Office; Linda Hurley and Kathyrn
Reshetiloff, USFWS; David Bleil, MD-DNR; Margaret Podlich (CBF). We are especially
grateful to the dedicated VIMS personnel who contributed greatly to the production of this
report: Jan Hodges, Tim Smith wick, Jennifer Whiting, Audrey Warner and Leah Nagey for
their tremendous assistance and preserverance in data collection, mapping and constant,
careful efforts to maintain high quality control; Pat Barthle for computer programming and
computer graphics; Harold Burrell, Leah Nagey, Kay Stubblefield, Diane Bowers, Sylvia Motley
and Billy Jenkins for graphic art work on the SAV maps reproduced in Appendix C, and for
figure preparation, photography and printing; Ruth Hershner for typesetting; Pat Hall and
David Boughan for computer services. Claud Summers, USGS, National Cartographic
Information Center (NCIC), Mid-Continent Mapping Center and Craig Breen, Engineering
Media Inc., Newport News, VA, were helpful in the procurement of high quality topo maps and
map copies. A and E Architectural and Engineering Supply Company, Richmond, VA, did the
high quality photo-reductions of the maps reproduced in Appendix C. Air Photographies, Inc.
conducted the aerial photographic missions and was responsible for the high quality aerial
photographs.
XI
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INTRODUCTION
Submerged aquatic vegetation (SAV) continues to be one of the
important living resources of the Chesapeake Bay receiving considerable
attention by bay scientists and managers. The recent signing of an SAV
management policy by the governors of Virginia, Maryland, and
Pennsylvania, the mayor of Washington, D. C., the EPA Administrator,
and the Chesapeake Bay Commission Chairman (CEC, 1989), and the
drafting of an SAV implementation plan for this baywide policy (CEC,
1990), indicate the commitment of the bay community to preserving,
protecting, and enhancing these important systems.
Monitoring of this resource on an annual basis, one aspect supported by
the SAV policy, has revealed the dramatic changes occurring with SAV
and has served to provide scientists and managers with a synoptic
overview of the current abundance on a baywide basis. SAV communities
in the entire Chesapeake Bay and tributaries have been photographed,
mapped and the areas of the beds digitized in 1978,1984,1985,1986,
1987, and 1989 while portions of the upper bay were mapped and digitized
in 1979 and the lower bay was mapped and digitized in 1980 and 1981
(Orth et al., 1979; Anderson and Macomber, 1980; Orth et al., 1985, 1986,
1987, and 1989). The bay shoreline was photographed in 1988, but was
not mapped; sections of the lower bay were mapped and digitized in 1971
and 1974.
Numerous SAV ground surveys have been conducted but most have
been limited to specific sections. No one ground survey has delineated
baywide SAV patterns. Aerial photography has proved to be a useful tool
in examining SAV distribution patterns and, when combined with
appropriate ground data, has provided an accurate, synoptic picture of
baywide SAV distribution. The goal of the 1989 work was to continue the
annual monitoring of SAV on a baywide basis using aerial photographic
methods with appropriate ground truth to substantiate presence or
absence of SAV in particular sections.
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SAV SPECIES
The term "submerged aquatic vegetation" for the purpose of this report
encompasses 18 taxa from 10 vascular macrophyte families and 3 taxa
from 1 freshwater macrophytic algal family, the Characeae, but excludes
all other algae, both benthic and planktonic, which occur in the
Chesapeake Bay and tributaries (Appendix A). For instance, benthic
marine algae, including many macrophytes, sometimes co-occur in the
same beds with vascular plants, even as epiphytes on vascular plants
(Humm, 1979). Although outside the scope of this study, the algal
component does constitute a portion of the SAV biomass in the Chesapeake
Bay and tributaries. However, except for the Characeae, this study has
not attempted to identify, delineate or discuss the algal component of the
vegetation nor its relative importance in the flora.
Ten species of submerged aquatic vegetation exclusive of the algae are
commonly found in the Chesapeake Bay and its tributaries. Zostera
marina (eelgrass) is dominant in the lower reaches of the bay.
Myriophyllum spicatum (Eurasian watermilfoil), Potamogeton pectinatus
(sago pondweed), Potamogeton perfoliatus (redhead grass), Zannichellia
palustris (horned pondweed), Vallisneria americana (wild celery), Elodea
canadensis (common elodea), Ceratophyllum demersum (coontail) and
Najas guadalupensis (southern naiad) are less tolerant of high salinities
and are found in the middle and upper reaches of the bay (Stevenson and
Confer, 1978; Orth et al., 1979; Orth and Moore, 1981,1983). Ruppia
maritima (widgeon grass) is tolerant of a wide range of salinities and is
found from the bay mouth to the Susquehanna Flats. Approximately
eleven other species are only occasionally found, and when present, occur
primarily in the middle and upper reaches of the bay and the tidal rivers
(Appendix A). Hydrilla verticillata (hydrilla), a recently introduced
species, presently dominates SAV beds in the tidal freshwater reaches of
the Potomac River. It has also been reported again in 1989 in the
Susquehanna Flats where its growth has not been as widespread as in the
Potomac River (Kollar, pers. comm.).
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METHODS
Introduction
Black and white aerial photography at a scale of 1:24,000 was the
principal source of information used to assess the distribution and
abundance of SAV in the Chesapeake Bay, its tributaries, and
Chincoteague Bay in 1989. SAV beds mapped from photographs onto
USGS 7.5 minute topographic quadrangles were then digitized, providing
a digital data base for analysis of bed area and location. Ground truth
information collected in 1989 was mapped onto the same topographic
quadrangles.
Aerial Photography
The 1989 SAV photography was obtained by Air Photographies
(Martinsburg, West Virginia) using a Wild RC-20 camera, with a 153 mm
(6 inch) focal length Aviogon lens, and Agfa Pan 200 film. The camera was
mounted in the bottom fuselage of the Air Photographies' Piper Aztec, a
twin engine reconnaissance aircraft. Photography was acquired at
approximately 12,000 feet altitude, yielding a 1:24,000 photographic scale.
Flight lines for photography, which were drawn on 1:250,000 scale
USGS maps, were predetermined by Air Photographies to include all areas
known to have SAV, as well as those areas which could potentially have
SAV (i.e. all areas where water depths were less than 2 m at mean low
water). Flightlines also included land features that are necessary as
control points for accurate mapping (Fig. 4). Sections of the upper
Rappahannock, upper York and most of the James Rivers were not flown
because the historical absence of SAV in these areas.
Flight lines were prioritized by major sections. Dates of flight windows
for aerial photography were timed to occur at peak standing crop of species
known to occur in the sections. In addition, specific areas with significant
coverage were given priority. Prior documentation and approval by the
funding agencies was required to extend dates of flight windows if
necessary. Actual dates of acquisition of photography are noted on each
quadrangle map in Appendix C.
General guidelines for mission planning and execution (Table 1)
address tidal stage, plant growth, sun elevation, water and atmospheric
transparency, turbidity, wind, sensor operation, and plotting. Adherence
to these guidelines assured acquisition of photography under nearly
optimal conditions for detection of SAV, thus insuring accurate photo
interpretation.
Quality assurance and calibration procedures were consistently
followed. The altimeter was calibrated by the Federal Aviation
Administration annually. Photographic settings were selected with an
automatic exposure control. Sun angle was measured with an indicator on
the plane. Flight lines were plotted on 1:250,000 scale maps to allow for
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KILOMETER
Figure 4. Map of the Chesapeake Bay, its tributaries and Chincoteague Bay with approximate
locations of flight lines for 1989 SAV photography.
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Table I
Guidelines Followed During Acquisition Of Aerial Photographs.
1. Tidal Stage - Photography was acquired at low tide, +/- 0-1.5 ft., as
predicted by the National Ocean Survey tables.
2. Plant Growth - Imagery was acquired when growth stages ensured
maximum delineation of SAV, and when phenologic stage overlap
was greatest.
3. Sun Angle - Photography was acquired when surface reflection from
sun glint did not cover more than 30 percent of frame. Sun angle was
generally between 20° and 40° to minimize water surface glitter. At
least 60 percent line overlap and 20 percent side lap was used to
minimize image degradation due to sun glint.
4. Turbidity - Photography was acquired when clarity of water ensured
complete delineation of grass beds. This was visually determined
from the airplane to insure that SAV could be seen by the observer.
5. Wind - Photography was acquired during periods of no or low wind.
Off-shore winds were preferred over on-shore winds when wind
conditions could not be avoided.
6. Atmospherics - Photography was acquired during periods of no or low
haze and/or clouds below aircraft. There could be no more than
scattered or thin broken clouds, or thin overcast above aircraft, to
ensure maximum SAV to bottom contrast.
7. Sensor Operation - Photography was acquired in the vertical mode
with less than 5 degrees tilt. Scale/altitude/film/focal length
combination permitted resolution and identification of one square
meter area of SAV (surface).
8. Plotting - Each flight line included sufficient identifiable land area to
assure accurate plotting of grass beds.
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overlap of photography. To minimize image degradation due to sun glint,
the camera was equipped with a computer controlled intervalometer which
established 60% line overlap and 20% sidelap. An automatic bubble level
held the camera to within one degree tilt. The scale/altitude/film/focal
length combination was coordinated to produce two foot resolution. Wind
speed was monitored hourly from the flight service available in the region.
Under normal operating conditions, flights were usually conducted under
wind speeds less than 10 mph. (Above this, wind generated waves stir the
bottom sediments which can easily obscure SAV beds in less than one
hour.) Pilot experience determined what acceptable level of turbidity
would insure complete delineation of SAV beds. At low tide the pilot
should have been able to distinguish bottom features such as SAV or algae.
When turbid conditions prevailed photography did not commence. Cloud
cover did not exceed 5% of the area covered by the camera frame.
Determination of cloud cover was based on pilot experience. Records of
this parameter were kept in a flight notebook. Every attempt was made to
acquire photographs with no cloud cover below 12,000 feet. A thin haze
layer above 12,000 feet was generally acceptable. Experience has shown
that the optimal conditions given above generally occur two to three days
following passage of a cold front when winds have shifted from
north-northwest to south and moderated to less than 10 mph. Where
possible, and within the guidelines given for prioritizing and executing the
photography, flights were planned to coincide with these atmospheric
conditions.
Exposed film was processed by Air Photographies. A contact print was
produced for each exposed frame. Each photograph was labeled with date
of acquisition as well as flight line number. Film and photographs were
stored under appropriate environmental conditions to prevent degradation
of the product.
Mapping Process
This study utilized USGS 7.5 minute topographic quadrangle maps as a
basis for mapping SAV beds from aerial photography, for digitizing the
SAV beds, and for compiling SAV bed area measurements. Figure 5 gives
locations of topographic quadrangles in the study area which includes all
regions with potential for SAV growth. Most quadrangles are sequentially
numbered for efficient access to data. The name corresponding to each
quadrangle in Figure 5 is listed in Table 2.
Photo-interpretation to identify and delineate SAV beds utilized all
available information including knowledge of aquatic grass signatures on
film, distribution of SAV in 1989 from aerial photography, 1989 ground
truth information, and aerial site surveys. USGS-published 7.5 minute
topographic quadrangle masters (1:24,000 scale) printed by the
Mid-continent Mapping Center of the USGS on stable transparent mylar
were used as base maps. Identical copies of these base maps were made at
the same scale on stable transparent mylar by the Virginia Department of
Highways using a diazo process. SAV from the 1989 aerial photographs
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KILOMETER
Figure 5. Location of USGS 7.5 minute topographic quadrangles for the Chesapeake Bay, its
tributaries and Chincoteague Bay with corresponding code numbers. (See Table 2 for
quad names.)
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Table 2
List Of USGS 7.5 Minute Topographic Quadrangles For The
Chesapeake Bay And Chincoteague Bay SAY Study Areas With
Corresponding Code Numbers. (See Fig. 5 for location of
quadrangles. Topographic quadrangles with SAV beds can be
found in Appendix C.)
1. Conowingo Dam, Md.-Pa. 46.
2. Aberdeen, Md. 47.
3. Havre de Grace, Md. 48.
4. North East, Md. 49.
5. Elkton, Md.-Del. 50.
6. White Marsh, Md. 51.
7. Edgewood, Md. 52.
8. Perryman, Md. 53.
9. Spesutie, Md. 54.
10. Earleville, Md. 55.
11. Cecilton,Md. 56.
12. Baltimore East, Md. 57.
13. Middle River, Md. 58.
14. Gunpowder Neck, Md. 59.
15. Hanesville, Md. 60.
16. Betterton, Md. 61.
17. Galena, Md. 62.
18. Curtis Bay, Md. 63.
19. Sparrows Point, Md. 64.
20. Swan Point, Md. 65.
21. Rock Hall, Md. 66.
22. Chestertown, Md. 67.
23. Round Bay, Md. 68.
24. Gibson Island, Md. 69.
25. Love Point, Md. 70.
26. Langford Creek, Md. 71.
27. Centreville, Md. 72.
28. Washington West, Md.-D.C.-Va. 73.
29. Washington East, D.C.-Md. 74.
30. South River, Md. 75.
31. Annapolis, Md. 76.
32. Kent Island, Md. 77.
33. Queenstown, Md. 78.
34. Alexandria, Va.-D.C.-Md. 79.
35. Deale.Md. 80.
36. Claiborne, Md. 81.
37. St. Michaels, Md. 82.
38. Easton,Md. 83.
39. Fort Belvoir, Va.-Md. 84.
40. Mt. Vernon, Md.-Va. 85.
41. Lower Marlboro, Md. 86.
42. North Beach, Md. 87.
43. Tilghman,Md. 88.
44. Oxford, Md. 89.
45. Trappe, Md. 90.
Preston, Md.
Quantico, Va.-Md.
Indian Head, Va.-Md.
Benedict, Md.
Prince Frederick, Md.
Hudson, Md.
Church Creek, Md.
Cambridge, Md.
East New Market, Md.
Widewater, Va.-Md.
Nanjemoy, Md.
Mathias Point, Md.-Va.
Popes Creek, Md.
Mechanicsville, Md.
Broomes Island, Md.
Cove Point, Md.
Taylors Island, Md.
Golden Hill, Md.
Passapatanzy, Md.-Va.
King George, Va.-Md.
Dahlgren, Va.-Md.
Colonial Beach North, Md.-Va.
Rock Point, Md.
Leonardtown, Md.
Hollywood, Md.
Solomons Island, Md.
Barren Island, Md.
Honga, Md.
Wingate, Md.
Nanticoke, Md.
Colonial Beach South, Va.-Md.
Stratford Hall, Va.-Md.
St. Clements Island, Va.-Md.
Piney Point, Md.-Va.
St. Marys City, Md.
Point No Point, Md.
Richland Point, Md.
Bloodsworth Island, Md.
Deal Island, Md.
Monie, Md.
Champlain, Va.
Machodoc, Va.
Kinsale, Va.-Md.
St. George Island, Va.-Md.
Point Lookout, Md.
8
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Table 2 (continued)
91. Kedges Straits, Md.
92. Terrapin Sand Point, Md.
93. Marion, Md.
94. Mount Landing, Va.
95. Tappahannock, Va.
96. Lottsburg, Va.
97. Heathsville, Va.-Md.
98, Burgess, Va.-Md.
99. Ewell, Md.-Va.
100. Great Fox Island, Va.-Md.
101. Crisfield, Md.-Va.
102. Saxis, Va.-Md.
103. Dunnsville, Va.
104. Morattico, Va.
105. Lively, Va.
106. Reedville, Va.
107. Tangier Island, Va.
108. Chesconessex, Va.
109. Parksley, Va.
110. Urbanna, Va.
111. Irvington, Va.
112. Fleets Bay, Va.
113. Nandua Creek
114. Pungoteague, Va.
115. West Point, Va.
116. Saluda, Va.
117. Wilton, Va.
118. Deltaville, Va.
119. Jamesville, Va.
120. Toano, Va.
121. Gressitt.Va.
122. Ware Neck, Va.
123. Mathews, Va.
124. Franktown, Va.
125. Westover, Va.
126. Charles City, Va.
127. Brandon, Va.
128. Norge.Va.
129. Williamsburg, Va.
130. Clay Bank, Va.
131. Achilles, Va.
132. New Point Comfort, Va.
133. Cape Charles, Va.
134. Cheriton, Va.
135. Savedge,Va.
136. Claremont, Va.
137. Surry.Va.
138. Hog Island, Va.
139. Yorktown.Va.
140. Poquoson West, Va.
141. Poquoson East, Va.
142. Elliotts Creek, Va.
143. Townsend,Va.
144. Bacons Castle, Va.
145. Mulberry Island, Va.
146. Newport News North, Va.
147. Hampton, Va.
148. Benns Church, Va.
149. Newport News South, Va.
150. Norfolk North, Va.
151. Little Creek, Va.
152. Cape Henry, Va.
153. Chuckatuck, Va.
154. Bowers Hill, Va.
155. Norfolk South, Va.
156. Kempsville, Va.
157. Princess Anne, Va.
158. Wye Mills, Md.
159. Bristol, Md.
160. Fowling Creek, Md.
161. Port Tobacco, Md.
162. Charlotte Hall, Md.
163. Mardela Springs, Md.
164. Wetipquin, Md.
165. Selbyville, Md.
166. Assawoman Bay, Md.
167. Berlin, Md
168. Ocean City, Md.
169. Public Landing, Md.
170. Tingles Island, Md.
171. Girdle Tree, Md.-Va.
172. Boxiron, Md.-Va.
173. Whittington Point, Md.-Va.
174. Chincoteague West, Va.
175. Chincoteague East, Va.
176. Anacostia, D.C.-Md.
9
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was mapped onto these diazo copies of USGS topographic quadrangles.
Delineation of SAVbed boundaries onto the topographic quadrangle maps
was facilitated by superimposing the photographic print with the
appropriate mylar quadrangle on a light table. SAV boundaries were then
traced directly onto the mylar quadrangle with a pencil. Where minor
scale differences were evident between a photograph and a quadrangle, or
where significant shoreline erosion or accretion had occurred since USGS
publication of a map, either a best fit was obtained or shoreline changes
were noted on the quadrangle.
In addition to delineating SAV bed boundaries, an estimate of percent
cover within each bed was made visually in comparison with an enlarged
Crown Density Scale similar to those developed for estimating of forest
tree crown cover from aerial photography (Fig. 6). Bed density was
classified into one of four categories based on a subjective comparison with
the density scale. These were: 1, very sparse (<10% coverage); 2, sparse
(10 to 40%); 3, moderate (40 to 70%); or 4, dense (70-100%). Either the
entire bed or subsections within the bed were assigned a number (1 to 4)
corresponding to the above density categories. Additionally, each distinct
SAV unit (bed or bed subsection) was assigned an identifying two letter
designation unique to its map. Subsections of beds were further identified
as being part of a contiguous bed by the addition of two letters unique to
each contiguous bed. These contiguous bed descriptions aid the tracking
of a single bed between quad sheets as well as the analysis of those beds
that had to be separated due to variation in SAV density.
SAV Perimeter Digitization and Area Calculation
The perimeters of all SAV beds mapped from the aerial photography
were digitized in a clockwise direction using a Numonics Model 2400/2200
DigiTablet Graphics Analysis System having a resolution of .001 inches
(.00254 cm) and an accuracy of .005 inches (.0127 cm). Coordinates were
transmitted to a PRIME 9955 computer for area calculations and data
manipulation via software developed at VIMS. Each SAV bed was
digitized at least four times and the area reported as a mean of three. The
perimeter of each SAV bed was defined by a polygon with a linear data
point density of 127 per chart inch (50 per cm, 5 meter ground resolution).
The total number of points defining any SAV bed is dependent on overall
bed size. The SAV bed perimeter was stored as X and Y coordinates in
centimeters from the quadrangle origin (lower left corner).
Any "island" within a polygon (digitized SAV perimeter) was
disregarded as long as a line was drawn from the outside of the polygon to
the "island" and the resulting polygon was digitized in a clockwise
direction. The line connecting the "island" polygon to the larger
surrounding polygon was drawn in by the digitizer operator.
10
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15
25
35
45
55
65
75
85
95
n
10-40
40-70
70-100
PERCENT CROWN COVER
Figure 6. Crown density scale used for determining density of SAV beds:
(1) Very sparse, 0-10%; (2) Sparse, 10-40%; (3) Moderate, 40-70%;
(4) Dense, 70-100%.
11
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SAV bed area in square centimeters on the chart was calculated via the
following equation:
A=l/2 I (Xi*Y2-X2*Yi)
where Xn and Yn are the nth digitized perimeter points in centimeters.
The area is then converted from square centimeters on the chart to
square meters on the ground. This is done via the following conversion
based on a chart scale of 1:24,000:
Ag(m2 on ground) = Ac(cm2 on chart) * 57600 (m2 on ground / cm2 on chart)
where Ag is the area on the ground of each SAV bed and Ac is the area
on the chart. The area on the ground is then stored for later use.
Tests of Precision and Accuracy
Prior to each digitization session, the Numonics instrument was
checked manually against a digitizing standard. After a map had been
secured to the digitizing tablet, the standard was secured to the map and
digitized four times. The information from digitizing the standard was
transmitted to the beginning of the SAV bed Perimeter File on the PRIME
computer. This same procedure was followed at the end of each digitizing
session. When this file was processed by the computer, the digitized area
of each standard was compared to the known area of the standard. If a
variation between the known and the mean of the observed areas exceeded
1.0%, a warning was printed advising the operator to check the digitizing
system. In addition, checks were made with respect to the absolute
location of the digitizing standard as secured to the map. A comparison
was made between the location of the standard before and after the
digitizing session. If the absolute location differed by more then 0.10 cm
another warning to check the system was printed. Any movement in
absolute location can be indicative of digitizer instrument drift or chart
movement during the digitization session. These checks assure that the
final calculated bed locations are as accurate as possible.
Maximum accuracy was maintained by exclusively using mylar
topographic quadrangles rather than paper ones which can change scale as
a function of changes in air temperature and humidity in the digitizer
room .
Calculation of SAV Bed Mean Area and Choice of
Representative SAV Bed
Every SAV bed mean area was the result of at least four independent
digitizations of the outline of each SAV bed. The computer made an area
calculation of each replication and the three bed outlines or perimeters
most similar in terms of area were then used for the calculation of a mean
area. The perimeter defining the area most similar to the mean area was
12
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then saved by the computer program as the representative perimeter for
this specific SAV bed. Representative perimeters for all 1989 SAV beds
were later converted to latitude and longitude and a copy of each on
computer tape was then sent to the EPA Chesapeake Bay Program
Computer Center for incorporation into the ARC INFO Geographical
Information System. The areas used in the mean area calculation do not
by contract requirements have a range in excess of 5% of the mean area.
All bed areas having an error rate in excess of 5% are flagged by the VIMS
quality assurance quality control computer program for additional error
assesment. The VIMS error rate is normally less than 1%.
A complete outline of the digitization procedure can be found in
Orth et al., 1988.
Standard Operating Procedures for Quality Assurance/Quality
Control
Standard operating procedures (SOPs) were developed to facilitate
orderly and efficient processing of the 1989 SAV maps and the SAV bed
perimeter computer files produced from them, and to comply with the need
for consistency, quality assurance and quality control. SOPs developed
include: a detailed procedure outlining 46 steps for digitization of SAV
maps; a 47 step checklist for editing SAV perimeter computer files to
insure completeness and accuracy; a digitizer log in which all operations
were recorded and dated, and which was used to guide and record editing
operations; and a flow chart used to track progress of all operations
including all changes in file names. Examples of these SOPs are in
Orth et al., 1988.
Conversion of SAV Perimeter Points from X,Y Centimeters to
Latitude and Longitude
Before SAV perimeter information was to be exported to the EPA
Chesapeake Bay Program Computer Center, the perimeter points had to
be converted from X,Y centimeters to the more generally applicable
latitude and longitude. This is done via a three step two dimensional
linear interpolation between the four corner points of every quadrangle.
At the start of digitization of every chart, the location of each corner point
in X,Y cm and in latitude and longitude is recorded at the head of the data
file. The corners are numbered:
1 = lower left corner or chart origin
2 = upper left corner
3 = upper right corner
4 = lower right corner
These corner points are then used to convert each individual X,Y
perimeter point to latitude and longitude. If additional files are needed for
a given chart, a new set of corner points are digitized and stored at the
head of these files.
13
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The steps for the conversion from X,Y cm to latitude and longitude are:
1. Transpose each X,Y perimeter point from the original, non orthogonal
(not at right angles) chart axes defined by the original four corner
points to a new set of orthogonal chart axes and defined by a new set
of four corner points.
2. Calculate centimeter to latitude and longitude linear conversion
factors from the transposed chart corner points via:
XCONV = 0.125 / (XCOKNERPOINT(4) - XCORNERPOINT(l))
YCONV = 0.125 / (YCORNERPOINT(2) - YCORNERPOINT(l))
Where : XCONV is the X cm to lat,lon conversion factor.
YCONV is the Y cm to lat.lon conversion factor.
0.125 is a constant representing the distance in decimal
degrees latitude or longitude between each successive
chart corner point.
XCORNERPOINT(#) is the X value in centimeters of the
numbered chart corner point.
YCORNERPOINT(#) is the Y value in centimeters of the
numbered chart corner point.
3. Perform linear conversions from orthogonal X,Y cm perimeter point
to latitude and longitude via the following equations:
YLAT = YCHART(l) + (YPORTH * YCONV)
XLON = XCHARTd) - (XPORTH * XCONV)
Where : YLAT is the new Y point in decimal degrees latitude.
XLON is the new X point in decimal degrees longitude.
YCHART(#) is the latitude of the chart corner point.
XCHART(#) is the longitude of the chart corner point.
YPORTH is the Y perimeter point in cm from the orth-
ogonal chart coordinate system.
XPORTH is the X perimeter point in cm from the orth-
ogonal chart coordinate system.
These new latitude and longitude perimeter points are then stored in a
special EPA submission file for VIMS SAV Data. The submission file
structure is fully documented in Orth et al., 1988.
14
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Organizational Provinces for Analysis and Discussion
Discussion of the distribution of SAV in the Chesapeake Bay and
tributaries has been organized into three zones as established by Orth and
Moore (1982) and modified by Orth et al., 1989 (Fig. 7). The area between
the mouth of the bay to a line stretching from the mouth of the Potomac
River at Smith Point in Virginia to approximately 3 nautical miles south of
Tangier Island then extending to the eastern side of the bay to an area just
south of the mouth of the Little Annemessex River is referred to as the
Lower Bay zone.
The area between the south shore of the Little Annemessex River and
the south shore of the Potomac River to the Chesapeake Bay bridge at
Kent Island is referred to as the Middle Bay zone. The area between the
Chesapeake Bay bridge and the Susquehanna Flats is referred to as the
Upper Bay zone. The salinity within each zone roughly coincides with the
major salinity zones of estuaries: polyhaline (18-25%o), Lower zone;
mesohaline (5-18°/oo), Middle zone; oligohaline (0.5-5 %o), Upper zone.
Although the major rivers and smaller tributaries of the bay have their
own salinity regimes, the distribution of SAV in each river is discussed
within the zone where it connects to the bay proper.
In addition, 21 major sections of the bay are identified for more detailed
discussion of SAV distribution (Fig. 7, Table 3). These sections, which
were first delineated for the 1984 survey (Orth et al., 1985) and had been
slightly modified for the 1987 survey (Orth et al., 1989), denote relatively
distinct parts of the bay and its tributaries that are readily identifiable
from a map. The section boundaries used for analysis and discussion of
the 1989 SAV distribution and abundance data are those used for the 1987
report (Orth et al., 1989). Sections 1 through 4 are located in the Upper
Bay zone. Sections 5 through 13 are located in the Middle Bay zone, and
sections 14 through 21 are located in the Lower Bay zone. Appendix B
gives the latitude and longitude of the boundary points of each
Chesapeake Bay section and Chincoteague Bay in decimal degrees. SAV
distribution in Chincoteague Bay is presented and discussed separately
from the Chesapeake Bay.
15
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3940.0
3910 0
3840.0 -
3810.0 -
3740.0 -
3710.0 -
3640.0
Figure 7. Location of Upper, Middle and Lower zones of the Chesapeake Bay and the 21 major
sections used for delineation of SAV distribution patterns. (Latitude and longitude
are in decimal degrees along the vertical and horizontal axes, respectively. See Table
3 and Appendix B for exact boundary positions.)
16
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Table 3
Area Descriptions For Each Of The 21 Major Sections Of The
Chesapeake Bay SAV Study Area.**
Section 1. Susquehanna Flats - all areas between and including Spesutie
Island and Turkey Point at the mouth of the Elk River to
include the Northeast River.
Section 2. Upper Eastern Shore - all areas in the Elk, Bohemia and
Sassafras Rivers, and SAV in areas on the eastern shore above
the Swan Point quadrangle.
Section 3. Upper Western Shore - all areas south of Spesutie Island and
north of the bay bridge to include the Bush, Gunpowder,
Middle, Patapsco and Magothy Rivers.
Section 4. Chester River - includes all of the Chester River, Eastern
Neck, areas north of the bay bridge on Kent Island and south
of Swan Point, and to include SAV on the Swan Point
quadrangle.
Section 5. Central Western Shore - all areas south of the bay bridge and
north of Holland Point on Herring Bay to include the Severn,
South and West Rivers and Herring Bay.
Section 6. Eastern Bay - all areas south of the bay bridge on Kent Island
and north of Tilghman Island from Green Marsh Point to
include the Wye, East and Miles Rivers, Crab Alley Bay,
Prospect Bay and Poplar, Jefferson and Coaches Islands.
Section 7. Choptank River - all areas south of Tilghman Island from
Green Marsh Point and north of Taylor Island to include the
Choptank and Little Choptank Rivers.
Section 8. Patuxent River - all areas in the Patuxent River.
Section 9. Middle Western Shore - all areas south of Holland Point at
Herring Bay and north of Point Lookout on the Potomac River
but not the mouth of the Patuxent River.
Section 10. Lower Potomac River - all areas between the mouth of the
Potomac River to a line extending from Maryland Point on the
north shore, just above Nanjemoy Creek, to Somersett Beach
on the south shore.
Section 11. Upper Potomac River - all areas from upriver limit of the
Lower Potomac River Section to Chain Bridge at Washington
D.C.
17
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Table 3 (continued)
Section 12. Middle Eastern Shore - all areas south of Taylor Island and
north of a line bisecting Cedar Island to include the Big and
Little Annemessex Rivers, Fishing Bay, and the Honga,
Nanticoke, Wicomico and Manokin Rivers.
Section 13. Mid-bay Island Complex - all areas in and adjacent to
Bloodsworth, South Marsh, Smith and Tangier Islands.
Section 14. Lower Eastern Shore - all areas south of a line bisecting Cedar
Island and located just above the Maryland-Virginia line to
Fisherman's Island.
Section 15. Reedville Region - includes the area between Windmill Point
on the Rappahannock River, and Smith Point at the mouth of
the Potomac River.
Section 16. Rappahannock River Complex - includes the entire
Rappahannock River, Piankatank River and Milford Haven
area.
Section 17. New Point Comfort Region - includes the area fronting the bay
from the lighthouse at New Point Comfort north to, but not
including, the bay entrance to Milford Haven.
Section 18. Mobjack Bay Complex - includes the East, North, Ware and
Severn Rivers, the north shore of the Mobjack Bay from New
Pt. Comfort lighthouse to the North River, and north of a line
bisecting the large shoal area around the Guinea Marsh area.
Section 19. York River - all areas along the north shore from Clay Bank to
the Guinea Marsh area and south of a line bisecting the large
shoal area around the Guinea Marsh area, and along the south
shore to include the north shore of Goodwin Island.
Section 20. Lower Western Shore - includes all areas south of Goodwin
Island to Broad Bay off Lynnhaven Inlet, excluding the James
River.
Section 21. James River - all SAV in the James River including the
Chickahominy River.
**- Sections 12, 13, 14, 18, 19 and 20 were given new boundaries for the 1987
report (Orth et al., 1989) which also changed the delineation of the three
major zones. These new boundaries have been retained for this report.
(Refer to Figure 7 and Appendix B for boundary locations).
18
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Ground Truth and Other Data Bases
Ground truthing was accomplished by cooperative efforts of a number
of agencies and individuals. Although incomplete for most areas, ground
truthing confirmed the existence of some SAV beds mapped from 1989
aerial photography, located a few 1989 SAV beds not visible from the
photography, and provided species data for many of these beds. Ground
truth survey information supplied to VIMS researchers was included on
the SAV distribution and abundance maps reproduced in Appendix C to
show positions of the survey stations in relation to the 1989 beds of SAV
mapped from the aerial photographs. Each survey was designated by a
unique symbol to identify the different methods of sampling. In most
cases, the symbols on the SAV maps (Appendix C) have been enlarged and
offset from the actual sampling point to avoid confusion with the mapped
SAV bed. Where species information was available, it was included on the
map. Additionally, all ground truth data supplied to VIMS referenced on
copies of 1987 SAV maps was tabulated in Appendix E and
cross-referenced at VIMS by 1989 bed locations.
For those areas in Virginia waters where aerial photographic evidence
of SAV beds was inconclusive, photo-verification was accomplished by
ground truthing. Observations were principally made from small boats
and by divers snorkeling over areas indicated from the photographs. In
several river systems included in this survey (York, Piankatank and
Rappahannock) where VIMS researchers transplanted SAV (principally
eelgrass), transplant sites also were examined carefully by divers for any
extant SAV. Citizen Field Observation data for Virginia waters (compiled
by the USFWS) were also added to the 1989 Virginia SAV maps
reproduced in Appendix C. In addition, a great deal of ground truth
information could be extrapolated from earlier studies (Orth et al., 1979;
Orth and Moore, 1982) since SAV beds in this region contain primarily one
or two species and have not undergone drastic fluctuations in distribution
and abundance since the first bay-wide survey in 1978.
In Maryland, ground truth data were obtained in 1989 by the USGS
Potomac River survey, two SAV research and transplanting projects, a
USFWS survey, and the Citizen's and Charterboat Captain's volunteer
surveys (both data sets compiled by the USFWS along with their own
survey data). USFWS personnel surveyed selected locations in the upper
bay by boat using rakes to collect samples to determine presence or
absence of SAV. Plants collected were identified to species when possible.
SAV sightings were referenced on USGS 7.5 minute topographic maps.
USFWS staff transferred data from these surveys to full-scale copies of
1987 SAV distribution maps (USGS 7.5 minute topographic quads with
1987 SAV beds). These USFWS-prepared survey maps were supplied to
VIMS SAV researchers and survey data were transferred by VIMS staff to
the 1989 SAV distribution maps reproduced in Appendix C. USFWS
survey data was tabulated, locating each SAV siting by listing its
associated 1987 bed. This table was supplied to VIMS where additional
survey data were added and it became the basis for the corrected and
19
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much expanded table published in Appendix E. In this latter VIMS
version of the USFWS table, all ground truth data were added from the
additional surveys, as noted in this report, and all were cross-referenced
by 1989 bed locations.
The field study in the Potomac River by the USGS, which covered the
shoreline areas from the District of Columbia (D.C.) to the Route 301
bridge near Morgantown, Md., used shoreline surveys to document the
distribution of SAV in the tidal freshwater and transition zones of the
Potomac River. The USGS conducted shoreline surveys in the tidal
freshwater portion of the river and tributaries, specifically the reach
between Washington, D.C., and Indian Head (quads 40, 34, 28 and 48),
from June to August, and in selected locations further south to Aquia
Creek (quad 55) in October of 1989. The transition zone was surveyed in
August for SAV by spot-checking in the Port Tobacco quad (161) and
Nanjemoy quad (56). These surveys were done by boat, using rakes to
collect samples to determine presence or absence of SAV. Plants were
identified by species and the proportion of each was estimated for
vegetated areas. Each vegetated area with species proportions was
referenced on USGS 7.5 minute topographic maps by the surveyors.
USGS survey maps were supplied to VIMS SAV researchers and survey
data were transferred by VIMS staff to the 1989 SAV distribution maps
(reproduced in Appendix C) and were tabulated in Appendix E.
One 1989 SAV transplanting project being conducted on the
Susquehanna Flats by Stan Kollar of Harford Community College
provided data in the form of species presence by percentage, primarily by
visual estimates. Species locations from these data were added to the
1989 SAV maps reproduced in Appendix C and were tabulated in
Appendix E by VIMS staff.
A SAV research group at University of Maryland Horn Point
Environmental Laboratories (HPEL), headed by Court Stevenson, also
provided 1989 ground truth data. Maps of their study sites on the
Choptank River were provided to VIMS researchers and were annotated
on the maps for this report (Appendix C) indicating the species reported
for 1989. This ground truth data was also tabulated in Appendix E.
In addition to the scientific surveys, private citizens participated in
identifying 1989 SAV beds by checking certain areas in the bay for the
previous years SAV bed locations for presence of SAV and by locating SAV
bed locations new in 1989. Two groups were responsible for looking for
SAV under the sponsorship of separate organizations. The Maryland
Charterboat Association participated in the baywide effort, funded by the
Maryland Department of Natural Resources (MD DNR) Watermen's
Assistance Program. Boat captains were provided with reduced 1987 SAV
quadrangle maps to aid in location of 1989 SAV beds and with data sheets
on which to record information on each 1989 SAV bed identified.
Sampling of SAV sites was undertaken at low tide. Samples were taken
by hand, net or rake. Plants were identified as to species onsite or placed
in zip-lock plastic bags and sent to the MD DNR for identification.
20
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Private citizens volunteered to assist in the 1989 SAV ground survey
under guidance of the USFWS and the Chesapeake Bay Foundation (CBF).
This program entailed identifying and recording the location of SAV in the
bay in 1989. Volunteers who were recruited through press releases,
newsletters and personal letters were provided with a SAV identification
guide, reduced 1987 SAV maps to aid in location of SAV beds and data
sheets for visits to numerous sites around the bay. Each volunteer was
asked to identify the location where SAV was sighted, and the species
identified were counted. All information from the Charterboat Captain's
survey and Citizen's survey was submitted to Linda Hurley and Kathy
Reshetiloff (USFWS) for processing. SAV sitings reported by the Citizen's
and Charterboat Captain's surveys were mapped on 1987 SAV maps. As
previously explained, USFWS personnel also tabulated data from most of
the 1989 Citizen's and Charterboat Captain's surveys along with their
own survey's data, listing each SAV siting by 1987 bed location. VIMS
staff mapped these data on maps reproduced in Appendix C, and data were
tabulated in Appendix E.
21
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RESULTS
Data Presentation
SAV distribution data are presented by topographic quadrangle (Table 4), by
section and zone (Table 5), and by quadrangles within a section (Table 6).
Topographic quadrangle maps annotated with all SAV beds are presented in Appendix
C, while individual bed areas for each quadrangle are given in Appendix D.
Appendix E tabulates all ground truth data for 1989. 1989 SAV distribution data and
species occurrences are first discussed relative to the Upper, Middle, and Lower Bay
zones, respectively. The 21 sections of the Chesapeake Bay, and Chincoteague Bay,
are then discussed individually and the data compared to results from the 1987 survey
(Orth et al., 1989) of SAV distribution and abundance. SAV is plotted for each
section and for Chincoteague Bay in Figures 8 through 29. (SAV is plotted in red, a
starred line represents a section boundary, latitude and longitude are in decimal
degrees along the vertical and horizontal axes, respectively, and USGS 7.5 minute
topographic quadrangles are represented by a grid of numbered rectangles. Refer to
Table 2 for quadrangle names listed by map number.)
1989 SUMMARY
In 1989, the Chesapeake Bay had 24,134 hectares of SAV, compared to 20,119
hectares in 1987, with 2,458 (10%), 11,507 (48%) and 10,169 (42%) hectares
occurring in the Upper, Middle and Lower Bay zones, respectively (Figs. 1 and 2).
Upper Bay Zone
Seventy-nine percent of the SAV within the Upper Bay zone was located in the
Susquehanna Flats section (1,945 hectares). Nine species of SAV were documented
by ground truth surveys in this section, with M. spicatum being the dominant species.
Hydrilla verticillata was found in the Hats but occurred in small isolated beds. In
addition to the reduced overall abundance of SAV from 1987 (2,219 hectares), beds
were generally much less dense, with 95% of all SAV beds classified as very sparse
(0-10% coverage), and no beds classified as dense (70-100% coverage). There were
308 hectares SAV in the Upper Eastern Shore section located principally in the Elk
and lower Sassafras Rivers, Swan, Stillpond and Churn Creeks, with many of the
same species as reported in the Susquehanna Flats section. In the Upper Western
Shore section (38 hectares) SAV was concentrated in Saltpeter and Seneca Creeks,
with M. spicatum and V. americana being most abundant. In the Chester River
section (167 hectares) SAV was most abundant adjacent to Eastern Neck and Eastern
Neck Island and in the lower Chester River. In this region R. maritima was the most
abundant of six species which were reported.
Middle Bay Zone
Forty-five percent of the SAV in the Middle Bay Zone (5,196 hectares) was found
in the Mid-bay Island Complex where R. maritima and Z. marina were present, in
22
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Table 4
Total Area Of SAV In Hectares By USGS
Quadrangles For 1987 And 1989.
QUADRANGLE
1. Conowingo Dam, Md.-Pa.
2. Aberdeen, Md.
7.5 Minute
1987
.
4.18
3. Havre de Grace, Md. 1857.89
4. North East, Md.
5. Elkton, Md.-Del.
6. White Marsh, Md.
7. Edgewood, Md.
8. Ferryman, Md.
9. Spesutie, Md.
10. Earleville, Md.
11. Cecilton.Md.
12. Baltimore East, Md.
13. Middle River, Md.
14. Gunpowder Neck, Md.
15. Hanesville, Md.
16. Betterton, Md.
17. Galena, Md.
18. Curtis Bay, Md.
19. Sparrows Pt., Md.
20. Swan Point, Md.
21. Rock Hall, Md.
22. Chestertown, Md.
23. Round Bay, Md.
24. Gibson Island, Md.
25. Love Point, Md.
26. Langford Creek, Md.
27. Centreville, Md.
28. Washington West, Md.-DC-Va.
29. Washington East, DC-Md.
30. South River, Md.
31. Annapolis, Md.
5.99
0
0
0.52
2.93
379.65
4.69
0
0
22.04
90.54
42.35
19.81
7.57
0
#
1.60
5.31
0
0
0.26
0
499.17
1.45
0
0
#
#
Topographic
1989
0
0.66
1835.50
105.51
5.70
0
#
0
187.85
97.87
0
0
3.61
34.55
12.66
1.09
2.79
#
#
5.24
19.16
0
#
#
0
138.92
0
0
0
#
0
23
-------
Table 4 (Continued)
QUADRANGLE
32. Kent Island, Md.
33. Queenstown, Md.
34. Alexandria, Va.-DC-Md.
35. Deale, Md.
36. Claiborne, Md.
37. St. Michaels, Md.
38. Easton, Md.
39. Fort Belvoir, Va.-Md.
40. Mt. Vernon, Md.-Va.
41. Lower Marlboro, Md.
42. North Beach, Md.
43. Tilghman, Md.
44. Oxford, Md.
45. Trappe, Md.
46. Preston, Md.
47. Quantico, Va.-Md.
48. Indian Head, Va.-Md.
49. Benedict, Md.
50. Prince Frederick, Md.
51. Hudson, Md.
52. Church Creek, Md.
53. Cambridge, Md.
54. East New Market, Md.
55. Widewater, Va.-Md.
56. Nanjemoy, Md.
57. Mathias Pt., Md.-Va.
58. Popes Creek, Md.
59. Mechanicsville, Md.
60. Broomes Island, Md.
61. CovePt., Md.
62. Taylors Island, Md.
1987
322.50
216.74
470.96
#
136.89
231.60
0
19.35
1056.79
0
#
85.45
5.51
#
0
46.27
17.59
1.27
0
167.74
49.46
#
#
39.17
108.45
284.18
#
2.08
20.20
4.62
47.47
1989
327.06
128.33
368.44
#
381.68
172.44
0
63.48
334.61
0
0
231.11
95.94
0
0
533.16
184.01
#
0
831.36
18.99
0
0
466.64
149.61
346.69
6.20
0
#
0.48
16.17
24
-------
Table 4 (Continued)
QUADRANGLE
63. Golden Hill, Md.
64. Passapatanzy, Md.-Va.
65. King George, Va.-Md.
66. Dahlgren.Va.-Md.
67. Colonial Beach N., Md.-Va.
68. Rock Point, Md.
69. Leonardtown, Md.
70. Hollywood, Md.
71. Solomons Island, Md.
72. Barren Island, Md.
73. Honga, Md.
74. Wingate, Md.
75. Nanticoke, Md.
76. Colonial Beach S., Va.-Md.
77. Stratford Hall, Va.-Md.
78. St. Clements Is., Va.-Md.
79. Piney Point, Md.-Va.
80. St. Marys City, Md.
81. Point No Point, Md.
82. Richland Point, Md.
83. Bloodsworth Island, Md.
84. Deal Island, Md.
85. Monie, Md.
86. Champlain, Va.
87. Machodoc, Va.
88. Kinsale, Va.-Md.
89. St. George Island, Va.-Md.
90. Point Lookout, Md.
91. Kedges Straits, Md.
92. Terrapin Sand Point, Md.
93. Marion, Md.
1987
2.53
0
16.10
14.29
17.79
0
0
4.97
8.33
269.81
632.04
171.97
0
0
0
0
0
10.48
0
42.46
555.76
60.24
24.60
-
0
0
5.73
0
693.37
93.26
160.14
1989
2.49
0
52.24
65.33
28.46
0
#
#
2.96
301.43
773.43
369.33
5.02
0
0
0
0
#
0
24.02
686.80
27.38
17.84
-
0
0
2.84
0
781.25
218.21
199.80
25
-------
Table 4 (Continued)
QUADRANGLE 1987 1989
94. Mount Landing, Va.
95. Tappahannock, Va.
96. Lottsburg, Va. - 0
97. Heathsville, Va.-Md. 0 0
98. Burgess, Va.-Md. 0 0
99. Ewell, Va.-Md. 2012.93 2423.98
100. Great Fox Is., Va.-Md. 1089.95 1381.77
101. Crisfield, Va.-Md. 123.22 202.04
102. Saxis, Va.-Md. 0 2.08
103. Dunnsville, Va.
104. Morattico, Va. 0 0
105. Lively, Va. 0 0
106. Reedville, Va. 87.99 157.87
107. Tangier Island, Va. 499.15 696.03
108. Chesconessex, Va. 911.70 972.11
109. Parksley.Va. 235.80 320.18
110. Urbanna,Va. 3G.16 200.66
111. Irvington, Va. 97.34 245.45
112. Fleets Bay, Va. 235.67 334.59
113. Nandua Creek, Va. 378.70 406.21
114. Pungoteague, Va. 696.73 795.10
115. West Point, Va.
116. Saluda,Va. 0 19.08
117. Wilton, Va. 26.75 43.07
118. Deltaville, Va. 18.88 81.06
119. Jamesville, Va. 419.53 496.40
120. Toano, Va.
121. Gressitt,Va.
122. Ware Neck, Va. 194.32 278.06
123. Mathews, Va. 58.08 110.18
124. Franktown, Va. 392.70 435.88
26
-------
Table 4 (Continued)
QUADRANGLE 1987 1989
125. Westover.Va.
126. Charles City, Va.
127. Brandon, Va. 0 #
128. Norge,Va. 0** 0**
129. Williamsburg, Va.
130. Clay Bank, Va. 0 #
131. Achilles, Va. 755.41 957.95
132. New Point Comfort, Va. 1048.89 1273.85
133. Cape Charles, Va. 266.42 271.66
134. Cheriton, Va. 73.50 73.21
135. Savedge, Va.
136. Claremont, Va.
137. Surry,Va.
138. Hog Island, Va.
139. Yorktown.Va. 0.98 1.58
140. Poquoson West, Va. 290.53 411.99
141. Poquoson East, Va. 752.42 994.84
142. Elliotts Creek, Va. 9.43 15.90
143. Townsend,Va. 11.97 12.55
144. Bacons Castle, Va.
145. Mulberry Island, Va.
146. Newport News North, Va. 0
147. Hampton, Va. 283.99 304.06
148. Benns Church, Va.
149. Newport News South, Va. 0 0
150. Norfolk North, Va. 0 0
151. Little Creek, Va. 0 0
152. Cape Henry, Va. 40.50 36.47
153. Chuckatuck, Va.
154. Bowers Hill, Va.
155. Norfolk South, Va.
27
-------
Table 4 (Continued)
QUADRANGLE 1987 1989
156. Kempsville, Va.
157. Princess Anne, Va. - 0
158. Wye Mills, Md. - 0
159. Bristol, Md. # #
160. Fowling Creek, Md. - 0
161. Port Tobacco, Md. 5.64 12.09
162. Charlotte Hall, Md. 0 0
163. Mardela Springs, Md. 0 0
164. Wetipquin, Md. 0 0
165. Selbyville, Md. 0 0
166. Assawoman Bay, Md. 0 0
167. Berlin, Md. 7.06 4.98
168. Ocean City, Md. 8.42 3.45
169. Public Landing, Md. 0 0
170. Tingles Island, Md. 1020.60 820.82
171. Girdle Tree, Md.-Va. 0 0
172. Boxiron, Md.-Va. 664.94 653.88
173. Whittington Point, Md.-Va. 207.90 161.79
174. Chincoteague West, Va. 0 0
175. Chincoteague East, Va. 401.00 665.58
176. Anacostia, D.C.-Md. __# 0_
TOTAL SAV - Chesapeake Bay 20,119.39 24,134.28
TOTAL SAV - Chincoteague Bay 2,309.91 2,310.50
NOTES:
Indicates quadrangle not photographed and assumed to have no SAV.
0 Indicates quadrangle photographed and no SAV noted.
** Area was photographed in 1987 and 1989, and was known to have
SAV both years but was not mapped because SAV beds were too
narrow and obscured by the shoreline at 1:24,000 scale. Ground
truthing revealed narrow beds fringing the shoreline of small
tributaries of the Chickahominy River (see map, Appendix C).
# SAV beds not detected from aerial photography. Ground truth
information indicated presence of SAV.
28
-------
Table 5
Number Of Hectares Of SAV In 1987 and 1989 For The 21 Major
Sections And Three Zones Of The Chesapeake Bay And For
Chincoteague Bay. (Section boundaries redefined for 1987 (Orth et
aL, 1989) and retained for 1989. See Figure 7, Table 3 and Appendix
B for boundary locations.)
ZONE
SECTION
AREA
(HECTARES)
1987 1989
Upper
Middle
Lower
TOTAL
TOTAL
1. Susquehanna Flats
2. Upper Eastern Shore
3. Upper Western Shore
4. Chester River
Zone Total
5. Central Western Shore
6. Eastern Bay
7. Choptank River
8. Patuxent River
9. Middle Western Shore
10. Lower Potomac River
11. Upper Potomac River
12. Middle Eastern Shore
13. Mid-Bay Island Complex
Zone Total
14. Lower Eastern Shore
15. Reedville
16. Rappahannock River Complex
17. New Point Comfort Region
18. Mobjack Bay Complex
19. York River
20. Lower Western Shore
21. James River
Zone Total
SAV FOR CHESAPEAKE BAY
SAV FOR CHINCOTEAGUE BAY
2219
103
117
515
2,954
0
900
356
41
0
458
1655
1527
4265
9,202
4036
324
208
238
1227
608
1322
0
7,963
20,119
2,310
1945
308
38
167
2,458
0
831
865
3
0
616
1998
1998
5196
11,507
4718
492
669
346
1593
677
1670
4
10,169
24,134
2,310
29
-------
Table 6
Number Of Square Meters Of SAY In 1989 For Each Quadrangle Of
The 21 Sections In The Chesapeake Bay And Of Chincoteague Bay.
(Map code numbers from Table 2 in parentheses.)
SECTION
Susquehanna Flats -1
QUADRANGLE
Conowingo Dam (1)
Aberdeen (2)
Havre de Grace (3)
North East (4)
Elkton (5)
Ferryman (8)
Spesutie (9)
Earleville (10)
AREA
Upper Eastern Shore - 2
North East (4)
Elkton (5)
Ferryman (8)
Spesutie (9)
Earleville (10)
Cecilton (11)
Gunpowder Neck (14)
Hanesville (15)
Betterton(lG)
Galena (17)
Swan Point (20)
Rock Hall (21)
Upper Western Shore - 3
White Marsh (6)
Edgewood (7)
Ferryman (8)
Spesutie (9)
Baltimore East (12)
Middle River(13)
Gunpowder Neck (14)
19,449,583 sq.m
1,944.96 hectares
4,805.93 acres
1,055,036
56,999
0
790,514
978,677
0
0
126,610
10,861
27,884
0
2QM1
3,077,202 sq.m
307.72 hectares
760.37 acres
0
0
0
0
0
36,119
345,545
30
-------
Table 6 (Continued)
SECTION
QUADRANGLE
Upper Western Shore - 3 (continued)
Hanesville (15)
Curtis Bay (18)
Sparrows Point (19)
Swan Point (20)
Round Bay (23)
Gibson Island (24)
Love Point (25)
Chester River - 4
Central Western Shore - 5
Eastern Bay - 6
Betterton (16)
Galena (17)
Swan Point (20)
Rock Hall (21)
Chestertown (22)
Love Point (25)
Longford Creek (26)
Centreville (27)
Kent Island (32)
Queenstown (33)
Curtis Bay (18)
Round Bay (23)
Gibson Island (24)
South River (30)
Annapolis (31)
Deale (35)
North Beach (42)
Annapolis (31)
Kent Island (32)
Queenstown (33)
AREA
0
0
0
0
0
0
381,664 sq.m
38.17 hectares
94.32 acres
0
0
52,410
160,956
0
0
1,389,220
0
0
69r033
1,671,619 sq.m
167.16 hectares
413.06 acres
0
0
0
0
0
0
0 sq.m
0 hectares
0 acres
0
3,270,646
1,214,290
31
-------
Table 6 (Continued)
SECTION
Eastern Bay - 6 (continued)
Choptank River - 7
QUADRANGLE
Claiborne (36)
St. Michaels (37)
Easton (38)
Tilghman (43)
Oxford (44)
Centreville (27)
Claiborne (36)
St. Michaels (37)
Easton (38)
Tilghman (43)
Oxford (44)
Trappe (45)
Preston (46)
Hudson (51)
Church Creek (52)
Cambridge (53)
East New Market (54)
Taylors Island (62)
Golden Hill (63)
Nanticoke (75)
Wye Mills (158)
Fowling Creek (160)
Patuxent River - 8
Deale (35)
Lower Marlboro (41)
North Beach (42)
Benedict (49)
Prince Frederick (50)
Mechanicsville (59)
Broomes Island (60)
Cove Point (61)
AREA
8,314,837 sq.m
831.48 hectares
2,054.56 acres
8,646,996 sq.m
864.70 hectares
2,136.64 acres
0
0
0
0
0
0
0
4,774
32
-------
Table 6 (Continued)
SECTION
Patuxent River - 8 (continued)
Middle Western Shore - 9
Lower Potomac River -10
QUADRANGLE
Hollywood (70)
Solomons Island (71)
Bristol (159)
North Beach (42)
Prince Frederick (50)
Hudson (51)
Broomes Island (60)
Cove Point (61)
Taylors Island (62)
Solomons Island (71)
Barren Island (72)
St. Marys City (80)
Point No Point (81)
Richland Point (82)
Point Lookout (90)
Nanjemoy (56)
Mathias Point (57)
Popes Creek (58)
Mechanicsville (59)
King George (65)
Dahlgren (66)
Colonial Beach North (67)
Rock Point (68)
Leonardtown (69)
Hollywood (70)
Solomons Island (71)
Colonial Beach South (76)
Stratford Hall (77)
St. Clements Island (78)
AREA
0 sq.m
0 hectares
0 acres
1,496,087
3,466,882
61,980
0
147,817
653,264
284,567
0
0
0
0
0
0
0
33
-------
Table 6 (Continued)
SECTION
QUADRANGLE
Lower Potomac River -10 (continued)
Piney Point (79)
St. Marys City (80)
Machodoc (87)
Kinsale (88)
St. George Island (89)
Point Lookout (90)
Lottsburg (96)
Heathsville (97)
Burgess (98)
Port Tobacco (161)
Charlotte Hall (162)
Upper Potomac River -11
Washington West (28)
Washington East (29)
Alexandria (34)
Fort Belvoir (39)
Mt. Vemon (40)
Quantico (47)
Indian Head (48)
Widewater (55)
Nanjemoy (56)
Mathias Point (57)
Passapatanzy (64)
King George (65)
Dahlgren (66)
Port Tobacco (161)
AREA
Middle Eastern Shore -12
Taylors Island (62)
Golden Hill (63)
Barren Island (72)
Honga (73)
Wingate (74)
Nanticoke (75)
6,156,173 sq.m
615.62 hectares
1,521.18 acres
0
0
3,684,377
634,806
3,346,067
5,331,609
1,840,069
4,666,357
0
0
0
374,611
0
103r741
19,981,637 sq.m
1,998.16 hectares
4,937.39 acres
0
24,915
3,014,329
7,734,303
3,693,340
50,162
34
-------
Table 6 (Continued)
SECTION QUADRANGLE AREA
Middle Eastern Shore -12 (continued)
Richland Point (82) 240,230
Bloodsworth Island (83) 782,926
Deal Island (84) 273,834
Monie (85) 178,367
Terrapin Sand Point (92) 118,454
Marion (93) 1,998,027
Great Fox Island (100) 1,287,123
Crisfield (101) 583,880
Mardela Springs (163) 0
Wetipquin (164) Q
19,979,890 sq.m
1,997.99 hectares
4,936.97 acres
Mid-Bay Island Complex -13 Richland Point (82) 0
Bloodsworth Island (83) 6,085,106
Deal Island (84) 0
Kedges Straits (91) 7,812,500
Terrapin Sand Point (92) 2,063,618
Ewell (99) 24,239,820
Great Fox Is. (100) 5,314,576
Tangier Island (107) 6r441r35Q
51,956,970 sq.m
5,195.70 hectares
12,838.40 acres
Lower Eastern Shore - 14 Great Fox Island(lOO) 7,216,001
Crisfield (101) 1,436,492
Saxis (102) 20,778
Tangier Island (107) 518,914
Chesconessex(lOS) 9,721,082
Parksley (109) 3,201,755
Nandua Creek (113) 4,062,056
Pungoteague(114) 7,950,993
Jamesville (119) 4,963,965
Franktown (124) 4,358,834
Cape Charles (133) 2,716,621
Cheriton (134) 732,110
35
-------
Table 6 (Continued)
SECTION
QUADRANGLE
AREA
Lower Eastern Shore - 14 (continued)
Elliotts Creek (142)
Townsend (143)
Reedville Region -15
Rappahannock River
Complex - 16
New Point Comfort
Region - 17
Heathsville (97)
Burgess (98)
Reedville (106)
Irvington (111)
Fleets Bay (112)
158,983
125.531
47,184,115 sq.m
4,718.41 hectares
11,659.03 acres
0
0
1,578,740
0
3.344.656
Tappahannock (95)
Dunnsville(103)
Morattico (104)
Lively (105)
Urbanna (110)
Irvington (111)
Fleets Bay (112)
Saluda(116)
Wilton (117)
Deltaville (118)
Ware Neck (122)
Mathews (123)
Mathews (123)
New Point Comfort (132)
4,923,396 sq.m
492.34 hectares
1,216.56 acres
0
0
0
0
2,006,645
2,454,461
1,212
190,787
430,676
810,599
0
797r841
6,692,221 sq.m
669.22 hectares
1,653.62 acres
0
3.457.814
3,457,814 sq.m
345.78 hectares
854.41 acres
36
-------
Table 6 (Continued)
SECTION
Mobjack Bay Complex -18
QUADRANGLE
Ware Neck (122)
Mathews (123)
Achilles (131)
New Point Comfort (132)
AREA
2,780,630
303,970
6,650,301
6r19Qr963
15,925,864 sq.m
1,592.59 hectares
3,935.24 acres
York River -19
Toano(120)
Gressitt(121)
Williamsburg(129)
Clay Bank (130)
Achilles (131)
New Point Comfort (132)
Hog Island (138)
Yorktown(139)
Poquoson West (140)
Poquoson East (141)
Lower Western Shore - 20
Poquoson West (140)
Poquoson East (141)
Elliotts Creek (142)
Newport News North (146)
Hampton (147)
Norfolk North (150)
Little Creek (151)
Cape Henry (152)
Kempsville(156)
Princess Anne (157)
6,768,855 sq.m
676.89 hectares
1,672.57 acres
16,700,805 sq.m
1,670.08 hectares
4,126.71 acres
37
-------
Table 6 (Continued)
SECTION
James River - 21
QUADRANGLE
Toano(120)
Westover(125)
Charles City (126)
Brandon(127)
Norge (128)
Williamsburg(129)
Savedge(135)
Claremont(136)
Surry (137)
Hog Island (138)
Yorktown (139)
Bacons Castle (144)
Mulberry Island (145)
Newport News North (146)
Hampton (147)
Benns Church (148)
Newport News South (149)
Norfolk North (150)
Little Creek (151)
Chuckatuck(153)
Bowers Hill (154)
Norfolk South (155)
Kempsville (156)
AREA
Chincoteague Bay
Berlin (167)
Ocean City (168)
Public Landing (169)
Tingles Island (170)
Girdle Tree (171)
Boxiron (172)
Whittington Point (173)
Chincoteague West (174)
Chinoteague East (175)
38,602 sq.m
3.86 hectares
9.54 acres
49,775
34,490
0
8,208,195
0
6,538,836
1,617,855
0
6r655r79Q
23,104,941 sq.m
2,310.49 hectares
5,709.14 acres
38
-------
particular, the broad shoal area between Smith and Tangier Islands. Eighteen percent
(1,998 hectares) of the SAV in this zone was present in the Middle Eastern Shore
section, primarily in the Barren Island-Honga River area, the Big and Little
Annemessex Rivers, and the lower section of the Manokin River, with R. maritima
being the dominant species reported for this area. Little or no SAV was mapped or
reported from the Central Western Shore, Middle Western Shore, and Patuxent River
sections.
The Middle Bay zone also includes the entire Potomac River, where 2,614
hectares of SAV were present in 1989. SAV was concentrated in two distinct zones:
1. the tidal freshwater region (the Upper Potomac River section with 1,998 hectares)
where H. verticillata remained the numerically dominant species (eight other species
were recorded from the USGS and Citizen's surveys); and 2. the region around the
Route 301 bridge (the upper portion of the Lower Potomac River section with 616
hectares), including Nanjemoy Creek and Port Tobacco River, with V. americana and
M. spicatum being the most frequently reported species in this area. Although the
total abundance of SAV in the upper section increased from 1987 (1,665 hectares),
many of the very dense beds from the Woodrow Wilson bridge to just below
Piscataway Creek declined. The decline was offset by the large increases in SAV
from Quantico Creek to Aquia Creek, along both shores.
Lower Bay Zone
SAV was abundant throughout the entire Lower Bay zone except for the James
River. Forty-five percent of SAV in the Lower Bay zone was found in the Lower
Eastern Shore section, around the Fox Islands and the mouths of major creeks (i.e.
Cherrystone Inlet, Hungars Creek, Mattawoman Creek, Occahannock Creek,
Craddock Creek, Pungoteague Creek and Onancock Creek). Along the western shore,
SAV was abundant in Mobjack Bay (15% of SAV in the Lower Bay zdne), lower
York River, Back River and Drum Island Flats area adjacent to Plum Tree Island.
Both R. maritima and Z. marina were abundant throughout this zone. Ruppia
maritima continued to increase in abundance in both the Piankatank and
Rappahannock Rivers. Zostera marina is present in several sections resulting from
previously successful transplant efforts.
Chincoteague Bay
SAV in Chincoteague Bay was little changed in distribution from 1987, with 2,310
hectares reported in 1989. All of the SAV consisted of/?, maritima and Z. marina,
and was located along the eastern side of the bay behind Assateague Island.
39
-------
1. SUSQUEHANNA FLATS
There were 1,945 hectares of SAV in the Susquehanna Flats section in 1989
(Tables 4-6; Fig. 8; Appendix C, Maps 2,3 and 9) compared to 2,219 hectares mapped
in 1987. In addition to the reduced overall abundance of SAV from 1987, beds were
generally much less dense as compared to 1987 densities (95% of the beds are
classified as very sparse, and no beds were classified as dense). SAV beds were
located principally in two main areas: 1. very sparse to moderate fringing beds in the
Susquehanna River consisting primarily of M. spicatum, with P. pectinatus,
C. demersum, V. americana, H. dubia and N. guadalupensis in lesser amounts from
Spencer Island to the river mouth at Havre de Grace on the west side, and to Stump
Point at the mouth of Mill Creek on the north side; and 2. a large area of very sparse
SAV located in the broad shoal area at the river mouth. This broad shoal consisted
primarily of small patches of M. spicatum, with P. pectinatus, V. americana,
C. demersum andJV. guadalupensis.
A total of nine species (M. spicatum, H. dubia, V. americana, H. verticillata,
C. demersum, P. pectinatus, N. guadalupensis, P. perfoliatus, and Najas spp.) have
been reported either by Stan Kollar of Harford Community College, the Citizen's or
the Charterboat Captain's surveys. SAV beds consisted of up to five species, with
M. spicatum being dominant Heteranthera dubia, V. americana, H. verticillata and
C. demersum also occurred in significant amounts. SAV remains virtually absent from
Mill Creek, Furnace Bay, Northwest River, Swan Creek, Spesutie Island and western
Elk Neck.
2. UPPER EASTERN SHORE
There were 308 hectares of SAV mapped for the Upper Eastern Shore section in
1989 (Tables 4-6; Fig. 9; Appendix C, Maps 4,5,9,10,15,16,17 and 21), compared
to 103 hectares mapped for 1987, consisting of very sparse to sparse beds (35% and
63%, respectively, of the total coverage within section 2). Principal locations of beds
were in the Elk River, Swan Creek, lower Sassafras River, Stillpond Creek and the
mouth of Chum Creek. Very little SAV was mapped in the Bohemia River and along
the mainstem of the bay from Stillpond Creek to Swan Point This section has
contained relatively little SAV since the baywide SAV survey program began in 1978
although, historically this section has contained abundant SAV (Stevenson and Confer,
1978).
Myriophyllum spicatum and V. americana were the two most commonly reported
species, with seven other species (H. verticillata, C. demersum, P. pectinatus,
E. canadensis, Z. palustris, P. crispusandR. maritimd) reported in lesser amounts as
determined by the Citizen's and Charterboat Captain's surveys.
3. UPPER WESTERN SHORE
There were 38 hectares of SAV mapped from the aerial photographs in 1989 for
the Upper Western Shore section (Tables 4-6; Fig. 10; Appendix C, Maps 13 and 14)
compared to 117 hectares in 1987. SAV beds were concentrated in Saltpeter and
Seneca Creeks. Very little or no SAV was reported in the Back, Patapsco, Bush,
Gunpowder, Middle and Magothy Rivers.
40
-------
3937. 5 .I, | | | | | | | ,M
3930.0
3922. 5
Figure 8. Distribution of SAV in the Susquehanna Flats (Section 1).
41
-------
3945. 0-
3937.
3930.
3922.
3915.
3907.
_l I II I I I I I M M I I I I I I I I II I II II I II 11 II II II II II II II II II I I It II I I I I I I I I II I I I l_
Figure 9. Distribution of SAV in the Upper Eastern Shore (Section 2).
42
-------
3930. 0
3922. 5
3915. 0
3907. 5
3900. 0 PIIIIIIIIIIII
Figure 10. Distribution of SAV in the Upper Western Shore (Section 3).
43
-------
Myriophyllum spicalum, E. canadensis, Z. palustris, P. pectinatus and
C. demerswn were reported by the Citizen's and Charterboat Captain's surveys (maps
7,18,19,23 and 24).
4. CHESTER RIVER
There were 167 hectares of S AV in the Chester River section in 1989 (Tables 4-6;
Fig. 11; Appendix C, Maps 20,21,26 and 33) compared to 515 hectares in 1987.
Most of the S AV was located adjacent to Eastern Neck and Eastern Neck Island, and
in the Chester River. Additional beds are found in Rock Hall Harbor, The Haven,
Swan and Huntingfield Creeks, located above Eastern Neck on the Chesapeake Bay.
Six species of S AV were reported from this section in 1989 by the Citizen's,
Charterboat Captain's and USFWS surveys (maps 21 and 26). Ruppia maritima and
P. perfoliatus were by far the most commonly reported species in this section with
P. pectinatus, M. spicatum, E. canadensis and Z. palustris being reported less
frequently.
5. CENTRAL WESTERN SHORE
There was no SAV observed from the aerial photography in the Central Western
Shore section in 1989 (Tables 4-6; Fig. 12) which was similar to 1987. Although not
evident in the aerial photography, the Citizen's survey reported SAV, primarily
P. pectinatus, Z. palustris and R. maritima, from a few sites in this section (maps 23,
30,35).
6. EASTERN BAY
There were 831 hectares of SAV identified from the Eastern Bay sqction in 1989
(Tables 4-6; Fig. 13; Appendix C, Maps 32,33,36 and 37) compared to 900 hectares
reported in 1987. SAV occurred as very sparse to sparse beds throughout this section
(14% and 72% of the total SAV coverage within section 6, respectively). In 1989
SAV was identified as being particularly abundant along both shorelines in Crab Alley
Bay, Prospect Bay, Parson Island, Piney Neck and the lower portion of the Miles
River. Little SAV was present from Punch Point on the Western shore of Eastern Bay
to Pawpaw Cove on Tilghman Island, as well as in the Miles and Wye River.
Ruppia maritima, P. pectinatus and Z. palustris were reported by the Citizen's survey
(maps 32,33 and 37). However, field information from this source as well as the
Charterboat Captain's survey was very limited compared to previous years.
7. CHOPTANK RIVER
There were 865 hectares of SAV observed in the Choptank River section in 1989
(Tables 4-6; Fig. 14; Appendix C, Maps 43,44,51,52 and 62) compared to 356
hectares in 1987. Most of the SAV occurred in sparse to moderate beds in only a few
areas (24% and 64% of the total coverage within section 7, respectively). Most of the
SAV was found in Harris Creek and Brannock Bay. Other areas were principally
along the eastern side of Tilghman Island, the mouth of Chapel Creek, Cook Point
Cove, Covey Creek and Cators Cove. There was little or no SAV in Broad Creek,
44
-------
3915 0
3907. 5
3900. 0
3852. 54
Figure 11. Distribution of SAV in the Chester River (Section 4).
45
-------
3907.5^
3900. 0
3852.5
3845. 0
3837.5
in
CO
o
CO
10
in
CM
CM
CO
o
in
CO
Figure 12. Distribution of SAV in the Central Western Shore (Section 5).
46
-------
3900 0
3852 5
3845.
3837 5
Figure 13. Distribution of SAV in the Eastern Bay (Section 6).
47
-------
3852 54-
3845 0
3837 5
3830 0
3822 5
Figure 14. Distribution ofSAV in the Choptank River (Section 7).
48
-------
Tred Avon River and much of the Little Choptank River. Vegetation above Chapel
Creek in the Choptank River is sparse but not completely absent.
Ground surveys by Citizens and Charterboat Captains, as well as scientists from
the University of Maryland's Horn Point Environmental Laboratories, located three
species of SAV in this section (maps 36,43,44,51,52,62) with R. maritima being the
most prevalent. Potamogeton pectinatus and Z. palustiis were observed in scattered
locations.
8. PATUXENT RIVER
There were 3 hectares of SAV reported in the Patuxent River section in 1989
(Tables 4-6; Fig. 15) compared to 41 hectares reported in 1987. SAV in the Patuxent
River has always been at very low levels of abundance and has not exceeded 50
hectares in any year since the baywide effort began in 1978. There were sporadic
sightings of four SAV species in the Patuxent River by the Citizen's and Charterboat
Captain's surveys (maps 49,60,61,70,71,159). Those species reported from the
lower sections of the river were: Z. palustris, P. pectinatus, M. spicatum and
R. maritima. Species found from the upper sections of the river were V. americana,
C. demersum, P. pectinatus, N. guadalupensis, E. canadensis, P. crispus, P. pusillus
andNajasspp.
9. MIDDLE WESTERN SHORE
There were no SAV beds identified in the Middle Western Shore section in 1989
(Tables 4-6; Fig. 16) which was similar to 1987. There were no observations from
ground surveys in 1989. Most of the littoral area in this broad section of the bay is
composed of exposed beaches of high energy that are unsuitable for SAV growth.
Therefore, we would not expect large expanses of SAV, rather only small pockets of
SAV in creeks or ponds that empty into the bay. Previous surveys have reported no
more than 23 hectares of SAV.
10. LOWER POTOMAC RIVER
There were 616 hectares of SAV identified in the Lower Potomac River section
from the 1989 aerial photography (Tables 4-6; Fig. 17; Appendix C, Maps 56,57,65,
66,67 and 161) compared to 458 hectares reported in 1987. All of the SAV, except
for a small bed near the mouth of the St. Mary's River, occurred in the region near the
Route 301 bridge, in Nanjemoy Creek and Port Tobacco River, and in the shoreline
adjacent to these two creeks. A majority of SAV beds were densely vegetated with
71% of the total SAV within section 10 in density class 4. SAV beds were fringing
along the eastern side of Mathias Point Neck to the Route 301 bridge. Several small
beds were observed in Machodoc, Rosier and Cuckhold Creeks, just below the Route
301 bridge.
Citizen's survey observations were made only in the St. Mary's River (map 80)
where R. maritima was the only species present, Herring Creek (Piney Point, map 79)
where R. maritima and Z. marina were reported, and in Breton Bay (Leonardtown
Quad, map 69) where E. canadensis and P. perfoliatus were observed. USFWSand
USGS surveys were made in the Port Tobacco River and Nanjemoy Creek (maps 56
49
-------
3837
3830, 0;
3822 5
3815 0
I ^ in i i i i\ i
Figure 15. Distribution of SAV in the Patuxent River (Section 8).
50
-------
3845.0
3837 5
3830.0
3822.5
3815.0
3807.5
3800.0
in
CD
o
o
CO
in
CM
CN
CO
o
in
CO
in
o
CO
Figure 16. Distribution of SAV in the Middle Western Shore (Section 9).
51
-------
3330 0
3322 5
r055
3315 0 i=~
3800 0
3752
S307 5 h -" -it-
Figure 17. Distribution of SAV in the Lower Potomac River (Section 10).
52
-------
and 57). They reported V. americana, M. spicatum, P. perfoliatus, C. demersum,
P. pectinatus, Najas spp., P. pusillus, P. crispus and R. maritima. The USGS also
reported P. perfoliatus near the Route 301 bridge on the Virginia side of the Potomac
River.
11. UPPER POTOMAC RIVER
There were 1,998 hectares of SAV mapped in the Upper Potomac River section
(Tables 4-6; Fig. 18; Appendix C, Maps 34,39,40,47,48,55,65 and 161) compared
to 1,655 hectares reported in 1987. A total of 69% of the S AV beds were densely
vegetated (density class 4). Although the total coverage of S AV in this section had
increased, many of the dense beds from the Woodrow Wilson Bridge (except the one
in the middle of the river) to just below Piscataway Creek were no longer present or
reduced in coverage. SAV distribution in the Alexandria and Mount Vemon
Quadrangles declined 21% and 68% from 1987, respectively. SAV increased from
Quantico to Aquia Creek, along both shores, with large increases in the Indian Head
(17.6 to 184.0 hectares), Widewater (39.2 to 466.6 hectares), King George (3.6 to 37.4
hectares) and Fort Belvoir (19.3 to 63.5 hectares) quadrangles. SAV is still absent
from Occoquan Bay, Belmont Bay and Aquia Creek.
Numerous SAV species were reported by the Citizen's survey (maps 39,40 and
48) which included H. verticillata, M. spicatum, C. demersum, H. dubia, N. minor,
V. americana, P. pectinatus and P. pusillus.
Results from the USGS survey of this region (maps 34,39,40,48 and 55), which
was less quantitative than in previous years, were very similar to that reported from
the Citizen's survey but also included N. guadalupensis.
12. MIDDLE EASTERN SHORE
There were 1,998 hectares of SAV identified in the Middle Eastern Shore section
(Tables 4-6; Fig. 19; Appendix C, Maps 63,72,73,74,82,83,84,85,92,93,100 and
101) compared to 1,527 hectares reported in 1987. SAV beds, of which 65% were
dense (class 4), 17% moderate (class 3), and 17% sparse (class 2), were very abundant
in: 1. the lower Honga River adjacent to Middle Hooper Island, Wroten Island, Parks
Neck and Asquith Island; 2. between Barren Island and Meekins Neck-Upper Hooper
Island; and 3. the lower Manokin and the Big and Little Annemessex Rivers. Few
SAV beds were observed in Fishing Bay and in the Nanticoke and Wicomico Rivers.
Ruppia maritima was the predominant species found by the Citizen's and
Charterboat Captain's surveys (maps 72,73,74,75,82,83,84,85,91,92,100 and
101). Zostera marina was reported from several locations on the Great Fox Island
(map 100) and Crisfield (map 101) quadrangles.
13. MID-BAY ISLAND COMPLEX
There were 5,196 hectares of SAV mapped in the Mid-Bay Island Complex in
1989 (Tables 4-6; Fig. 20; Appendix C, Maps 83,91,92,99,100 and 107) compared
to 4,265 hectares reported in 1987. This section contains 21.2% of the SAV in the
entire Chesapeake Bay. The broad, expansive shoal area between Tangier Island and
Smith Island continued to be densely vegetated by both R. maritima and Z. marina,
53
-------
3852 54i | | | | |
3845.0
3837.5
3830.0
3822.5
3815 Oj
064 065 ^-\ \06B
I II UtJ I I I I I I I IX- II I I I II I I I I I IT -K34 I I I I I I I II II
Figure 18. Distribution of SAV in the Upper Potomac River (Section 11).
54
-------
3850. 0
3822.5
3815. 0
3807.5
3800.0
3752.
Figure 19. Distribution of SAV in the Middle Eastern Shore (Section 12).
55
-------
3815. 0
3807. 5
3800.0
3752. 5
3745. 0
Figure 20. Distribution of SAV in the Mid-Bay Island Complex (Section 13).
56
-------
and was by far the largest bed in the Chesapeake Bay. Eighty percent of the SAV
within this section was in density class 4.
Ruppia maritima was the species most often reported by the Charterboat Captain's
survey around these islands, with one report of Z. marina. Previous VIMS surveys
had documented much more extensive occurrences of Z. marina.
14. LOWER EASTERN SHORE
There were 4,718 hectares of SAV observed in the Lower Eastern Shore section in
1989 (Tables 4-6; Fig. 21; Appendix C, Maps 100,101,107,108,109,113,114,119,
124,133,134,142 and 143) compared to 4,036 hectares reported in 1987. Large,
dense beds (50% of die total SAV is in density class 4) of Z. marina and R. maritima
(includes observations from both the Citizen's and Charterboat Captain's surveys;
maps 100,101 and 133) continue to persist at the mouth of Cherrystone Inlet near
Cape Charles, at the mouths of Hungars Creek, Mattawoman Creek, Occohannock
Creek, Craddock Creek, Pungoteague Creek, Onancock Creek and Chesconessex
Creek, at the Big Marsh area near Chesconessex Creek, at Webb Island off the mouth
of Deep Creek, and on the large shoal area on the eastern side of the Fox Islands.
Those areas between the above mentioned creeks were sparsely vegetated. This was
due largely to the dynamic and exposed nature of these sites. There was very little
SAV in the Pocomoke Sound area, and there was no SAV south of Old Plantation
Creek just below Cape Charles.
15. REEDVILLE REGION
There were 492 hectares of SAV identified in the Reedville Region in 1989
(Tables 4-6; Fig. 22; Appendix C, Maps 106 and 112) compared to 324 hectares
reported in 1987. SAV beds consisted of sparse, moderate and dense beds (19%,
47% and 21% of the total SAV within this section in density classes 2,3 and 4,
respectively) of/?, maritima and Z. marina. (Species identification was based on
prior years scientific and Citizen's information since there was no ground truthing
here for 1989.) Most beds were found in Little Bay, Dymer Creek, Indian Creek, Ball
Creek, Dameron Marsh, Fleeton Point and Taskmasker Creek.
16. RAPPAHANNOCK RIVER COMPLEX
There were 669 hectares of SAV observed in the Rappahannock River Complex in
1989 (Tables 4-6; Fig. 23; Appendix C, Maps 110, 111, 116,117,118 and 123)
compared to 208 hectares reported in 1987. SAV beds consisted mostly of sparse to
moderate beds (77% in density classes 2 and 3). SAV has continued to rapidly
increase in this system since 1986 when only 18 hectares were mapped. Ruppia
maritima continues to be the dominant species in both the Rappahannock and
Piankatank Rivers. In particular, dense beds of/?, maritima were again present in the
Corrotoman River (includes obervations from the Citizen's and VIMS surveys).
Ruppia maritima is now present in small scattered patches along the north shore of the
Rappahannock River above Towles Point Zostera marina, once a dominant species
in this section similar to the other sections in the lower bay but rare since 1971, is now
present in small patches in both rivers. This is a result of successful transplant efforts
57
-------
3800 0
3752. 5 ~-
3745.0 r
3737 5
3730.0
3722. 5
3715.0
3707. 5
3700
Figure 21. Distribution of SAV in the Lower Eastern Shore (Section 14).
58
-------
3752 5
3745.0
Figure 22. Distribution of SAV in the Reedville Region (Section 15).
59
-------
3745.0
3737. 5
3730. 0
3722.54
I M I I I I I II I IM I
Figure 23. Distribution of SAV in the Rappahannock River Complex (Section 16).
60
-------
using both seeds and whole plants in a number of different areas since 1984 (VIMS,
unpublished data). In the Rappahannock River transplanted Z. marina is present
adjacent to Parrott Island, off Sanders Cove just above the bridge, at the mouth of
Carters Creek, Ball Point, off Wharton Grove and adjacent to Towles Point. In the
Piankatank River and Milford Haven area transplanted Z. marina is present off Burton
Point, along the northeast side of Gwynn Island and at the mouth of Healy and Hills
Creek. Naturally occurring Z. marina is present on the west side of Gwynn Island off
The Hole in the Wall and off the northeast dp of the island, and in the Willis Wharf
area.
17. NEW POINT COMFORT REGION
There were 346 hectares of SAV identified in the New Point Comfort Region in
1989 (Tables 4-6; Fig. 24; Appendix C, Map 132) compared to 238 hectares reported
in 1987. S AV consisted of dense beds (68% is in density class 4) of Z. marina and
R. mariiima (observations include those from the Citizen's and VIMS surveys)
between New Point Comfort and just north of Horn Harbor.
18. MOBJACK BAY COMPLEX
The Mobjack Bay Complex contained 1,593 hectares of SAV in 1989 (Tables 4-6;
Fig. 25; Appendix C, Maps 122,123,131 and 132) compared to 1,227 hectares
reported in 1987. SAV beds consisting of Z. marina and R. maritima (observations
include those from the Citizen's and VIMS surveys) were most abundant along the
entire shoreline of Mobjack Bay as well as in three of four tributary rivers: Severn,
Ware and North. Several small beds of/?, mariiima were observed within the East
River. The Mobjack Bay area continued to harbor some of the more extensive SAV
beds on the western shore of the lower Chesapeake Bay. Sixty-four percent of the
total coverage of SAV in this section is in density class 4.
19. YORK RIVER
There were 677 hectares of SAV observed in the York River section in 1989
(Tables 4-6; Fig. 26; Appendix C, Maps 130,131,132, 139 and 140) compared to 608
hectares reported in 1987. Dense SAV beds (80% of the total coverage in this section
is in density class 4) consisting of both Z. marina and R. maritima (observations
include those from the Citizen's and VIMS surveys) were located principally along the
north shore from Gloucester Point to the mouth of the river. The only beds present
along the south shore were located on the north side of Goodwin Islands. SAV beds
were absent upstream of Gloucester Point on the north shore except for a small area of
Z. marina (less than 0.5 hectares) adjacent to Big Mumfort Island. This area was
planted from seeds broadcast in the fall, 1988 (VIMS, unpublished data). Small
patches of Z. marina (approximately 1 - 2m2) are present just below the Naval
Weapons Station on the south shore. These were transplanted in the fall of 1985,
1986, 1987 and 1988 (VIMS, unpublished data) and have persisted through 1989.
Ruppia maritima is also present in this transplant area, but unlike Z. marina, has
re-established naturally. The SAV beds planted at Gloucester Point in 1982 and 1983,
as well as the smaller areas planted immediately adjacent to these larger areas from
61
-------
3730. Ojr
3722 5
3715. 04-
I—I—I—I—I—I—I—I—I—I—I—\
i i i i i i i i i i i i i i i i i i
Figure 24. Distribution of SAV in the New Point Comfort Region (Section 17).
62
-------
3730.0
3722.5
3715. 0
Figure 25. Distribution of SAV in the Mobjack Bay Complex (Section 18).
63
-------
3722.5
3715.0
3707.
I w I Jl I I I I l\J II I I I
Figure 26. Distribution of SAV in the York River (Section 19).
64
-------
1984 through 1988, continue to thrive in 1989 similar to many naturally expanding
beds along the north shore.
20. LOWER WESTERN SHORE
There were 1,670 hectares of SAV mapped in the lower Western Shore section in
1989 (Tables 4-6; Fig. 27; Appendix C, Maps 140,141,147 and 152) compared to
1,322 hectares reported in 1987. SAV consisting of Z. marina and R. maritima
(Citizen's and VIMS surveys) remained as dense beds. Sixty percent of the total
coverage in this section is in density class 4 in Broad Bay, Back River, the mouth of
Poquoson River off Pasture and Hunts Neck, Drum Island Flats, adjacent to Crab
Neck just south of Goodwin Island, and on the south side of Goodwin Island. No
SAV was present in the southwest and northwest branches of Back River, or in the
Poquoson River, Chisman Creek and Back Creek.
21. JAMES RIVER
There were 4 hectares of SAV in the mainstem James River in 1989 (Tables 4-6;
Fig. 28; Appendix C, Map 147). This small, 3.8 hectare (9 acre) dense bed located at
the mouth of Hampton Creek adjacent to the Veteran's Hospital consisted
predominantly of Z. marina.
A small section of the Chickahominy that was identified as having SAV in 1989
was photographed. It included Cordon and Nettles Creek, and Nayses Bay. The
photography showed SAV beds occurring in locations similar to previous aerial
surveys indicating that these beds are relatively stable. However, SAV beds were not
mapped because the observed beds occurred in small creeks and could only have been
represented by a thin line on a 1:24,000 scale topographic quadrangle. Tracing and
digitizing a single line rather than a polygon-shaped bed would have resulted in large
errors, thereby compromising our quality control standards. Citizen's survey
information from the Brandon quadrangle indicated fringing SAV beds consisting of
N. quadalupensis, C. demersum and Chora sp. along Parsons Creek in Sunken Marsh
by the Chickahominy main stem. SAV species are probably distributed throughout
the Chickahominy River system occupying the fringes of many tidal creeks.
CfflNCOTEAGUE BAY
There were 2,310 hectares of SAV identified in Chincoteague Bay in 1989 (Tables
4-6; Fig. 29; Appendix C, Maps 167,168,170,172,173 and 175) compared to 2,310
hectares reported in 1987. Seventy-four percent of the beds were moderate coverage
and 21% were dense coverage. The Citizen's and Charter Boat Captain's surveys
found both Z. marina and/?, maritima throughout the bay (maps 167,168, 170,172
and 173). All of the SAV continues to be present on the eastern side of the bay
adjacent to Assateague Island in water depths of less than 1 meter (MLW). The
vegetation was concentrated in four relatively distinct areas identical to that reported
in the 1986 and 1987 surveys. They were located west of the northern end of
Chincoteague Island, and west of West Bay, Green Run Bay and the Tingles Island
area. Seven percent of the total bottom of this region (32,536 hectares) supports SAV.
65
-------
3715 0
3707 5
3700.0
3652.
Figure 27. Distribution of SAV in the Lower Western Shore (Section 20).
66
-------
3730.0
3722 5
3715 0
3707.
3700.0 5
3652.5 5
3645.0 r
3637
Figure 28. Distribution of SAV in the James River (Section 21).
67
-------
75° 30'
75° 15'
38D
75° 30'
Figure 29. Distribution of SAV in Chincoteague Bay.
68
-------
LITERATURE CITED
Anderson, R. R. and R. T. Macomber. 1980. Distribution of submersed
vascular plants, Chesapeake Bay, Maryland. Final Report to U.S.
EPA, Chesapeake Bay Program. Grant No. R805970. 126pp.
Chesapeake Executive Council. 1989. Submerged Aquatic Vegetation
Policy for the Chesapeake Bay and Tidal Tributaries. Annapolis,
MD. July.
Chesapeake Executive Council. 1990. Implementation Plan for the
Submerged Aquatic Vegetation Policy. Annapolis, MD. July.
Godfrey, R. K and J. W. Wooten. 1981. Aquatic and Wetland Plants of
Southeastern United States: Dicotyledons. The University of
Georgia Press, Athens. 933 pp.
Godfrey, R. K. and J. W. Wooten. 1979. Aquatic and Wetland Plants of
Southeastern United States: Monocotyledons. The University of
Georgia Press, Athens. 712 pp.
Harvill, A. M. Jr., C. E. Stevens and D. M. E. Ware. 1977. Atlas of the
Virginia Flora: Part I, Pteridophytes through Monocotyledons.
Virginia Botanical Associates, Farmville. 59 pp.
Harvill, A. M. Jr., T. R. Bradley and C. E. Stevens. 1981. Atlas of the
Virginia Flora: Part II, Dicotyledons. Virginia Botanical Associates,
Farmville. 148 pp.
Humm, Harold J. 1979. The Marine Algae of Virginia. Special Papers in
Marine Science, Number 3, Virginia Institute of Marine Science. The
University Press of Virginia, Charlottesville. 263 pp.
Kartesz, J. T. and R. Kartesz. 1980. A Synonymized Checklist of the
Vascular Flora of the United States, Canada and Greenland: Volume
II, The Biota of North America. The University of North Carolina
Press, Chapel Hill. 498 pp.
Orth, R. J. and K. A. Moore. 1981. Submerged aquatic vegetation in the
Chesapeake Bay: past, present and future, pp. 271-283. In: Proc.
46th North American Wildlife and Natural Resources Conf., Wildlife
Manage. Inst., Wash., D.C.
Orth, R. J. and K A. Moore. 1982. The biology and propagation of
Zostera marina, eelgrass, in the Chesapeake Bay, Virginia. Final
Report to U.S. EPA, Chesapeake Bay Program. Grant No. R805953.
187 pp.
Orth, R. J. and K. A. Moore. 1983. Chesapeake Bay: an unprecedented
decline in submerged aquatic vegetation. Sci. 222:51-53.
Orth, R. J. and K. A. Moore. 1984. Distribution and abundance of
submerged aquatic vegetation in Chesapeake Bay: an historical
perspective. Est. 7:531-540.
Orth, R. J. and K. A. Moore. 1988. Submerged aquatic vegetation in the
Chesapeake Bay: A barometer of Bay health, pp. 619-629. In:M.
Lynch (Ed.), Understanding the Estuary: Advances in Chesapeake
Bay Res. Chesapeake Res. Consort. Pub. No. 129. CBP/TRS/24y88.
69
-------
Orth, R. J., K. A. Moore and H. H. Gordon. 1979. Distribution and
abundance of submerged aquatic vegetation in the lower Chesapeake
Bay, Virginia. Final Report to U.S. EPA, Chesapeake Bay Program.
EPA-600/8-79-029/SAV1.
Orth, R. J., J. Simons, R. Allaire, V. Carter, L. Hindman, K. Moore and N.
Rybicki. 1985. Distribution of submerged aquatic vegetation in the
Cheapeake Bay and tributaries -1984. Final Report to U.S. EPA,
Coop. Agreement X-003301-01. 155pp.
Orth, R. J., J. Simons, J. Capelli, V. Carter, L. Hindman, S. Hodges, K
Moore and N. Rybicki. 1986. Distribution of submerged vegetation
in the Chesapeake Bay and tributaries -1985. Final Report to U.S.
EPA. 296pp.
Orth, R. J., J. Simons, J. Capelli, V. Carter, A. Frisch, L. Hindman, S.
Hodges, K. Moore and N. Rybicki. 1987. Distribution of submerged
aquatic vegetation in the Chesapeake Bay and tributaries and
Chincoteague Bay -1986. Final Report to U.S. EPA. 180 pp.
Orth, R. J., A. A. Frisch, and J. F. Nowak. 1988. Quality assurance
project plan for the 1987 submerged aquatic vegetation distribution
and abundance survey of the Chesapeake and Chincoteague Bays.
Plan submitted to U.S. EPA, Chesapeake Bay Liason Office,
Annapolis, MD. 47 pp.
Orth, R. J., A. A. Frisch, J. F. Nowak, and K. A. Moore. 1989.
Distribution of submerged aquatic vegetation in the Chesapeake Bay
and tributaries and Chincoteague Bay -1987. Final Report to U.S.
EPA. 247pp.
Radford, A. E., H. E. Ahles and C. R. Bell. 1968. Manual of the Vascular
Flora of the Carolinas. The University of North Carolina Press,
Chapel Hill. 1183pp.
Stevenson, J. C. and N. Confer. 1978. Summary of Available Information
on Chesapeake Bay Submerged Vegetation. U.S. Dept. of Interior,
Fish and Wildlife Serv. FWS/OBS-78/66. 335 p.
Wood, R. D. and K Imahori. 1965. A Revision of the Characeae: Volume
I, Monograph of the Characeae. Verlag Von J. Cramer, Weinheim.
904 pp.
Wood, R. D. and K. Imarhori. 1964. A Revision of the Characeae:
Volume II, Iconograph of the Characeae. Verlag Von J. Cramer,
Weinheim. 395 icones with Index.
70
-------
APPENDICES
71
-------
APPENDIX A
Species Of Submerged Aquatic Plants Found In The Chesapeake Bay And
Tributaries Exclusive of the Marine Algae (Classification And
Nomenclature Derived From: Godfrey And Wooten, 1979,1981; Harvill,
Et AL, 1977, 1981; Kartesz And Kartesz, 1980; Radford, Et Al., 1968; Wood
And Imahori, 1965,1965)
Family
Species
Common name
Characeae
(muskgrass)
Potamogetonaceae
(pondweed)
Ruppiaceae
Zannichelliaceae
Najadaceae
Hydrocharitaceae
(frogbit)
Pontedariaceae
(pickerelweed)
Ceratophyllaceae
(coontail)
Trapaceae
Haloragaceae
(water milfoil)
Zosteraceae
Chora braunii Gm.
Chara zeylanica Klein.
ex Willd., em.
Nitella flexilis (L). Ag., em.
Potamogeton perfoliatus L. var.
bupleuroides (Fernald) Farwell
Potamogeton pectinatus L.
Potamogeton crispus L.
Potamogeton pusillus L.
Ruppia maritima L.
Zannichelliapalustris L.
Najas guadalupensis (Sprengel)
Magnus
Najas gracillima (A. Braun)
Magnus
Najas minor Allioni
Vallisneria americana Michaux
Elodea canadensis (Michaux)
Egeria densa Planchon
Hydrilla verticillata (L.f.)
Boyle
Heteranthera dubia (Jacquin)
MacMillian
Ceratophyllum demersum L.
Trapa natans L.
Myriophyllum spicatum L.
marina (L.)
Muskgrass
Redhead grass
Sago pondweed
Curly pondweed
Slender pondweed
Widgeon grass
Horned pondweed
Southern naiad
Naiad
Wild celery
Common elodea
Water-weed
Hydrilla
Water stargrass
Coontail
Water chestnut
Eurasian
water milfoil
Eelgrass
72
-------
APPENDIX B
Latitude And Longitude Coordinate Points Defining the 21 Major
Chesapeake Bay Sections and Chincoteague Bay. (For section locations
and descriptions see Fig. 7 and Table 3.)
SEC. 1.
SEC. 2.
SEC. 3.
SEC. 4.
Latitude Longitude
Deg Min Deg Min
Susquehanna Flats
39 27.00 76 10.00
39 39.15 76 10.00
39 39.15 75 51.00
39 27.50 76 00.00
39 26.50 76 01.31
Upper Eastern Shore
39 10.00 76 20.00
39 20.00 76 12.50
39 26.50 76 01.31
39 27.50 76 00.00
39 39.15 75 51.00
39 39.15 75 45.00
39 19.50 75 45.00
39 20.00 76 00.00
39 12.55 76 10.40
39 09.25 76 16.00
Upper Western Shore
39 12.40 76 49.00
39 30.00 76 20.00
39 27.00 76 10.00
39 26.50 76 01.31
39 20.00 76 12.50
39 10.00 76 20.00
39 00.00 76 20.00
39 03.50 76 32.30
39 06.82 76 35.40
39 11.15 76 40.00
Chester River
39 00.00 76 20.00
39 10.00 76 20.00
39 09.25 76 16.00
39 12.55 76 10.40
39 20.00 76 00.00
39 19.50 75 45.00
39 05.00 75 45.00
39 05.00 76 00.00
38 57.10 76 11.85
39 00.00 76 19.10
SEC. 5.
SEC. 6.
SEC. 7.
Latitude Longitude
Deg Min Deg Min
Central Western Shore
38 42.90 76 35.00
38 55.00 76 37.50
39 12.40 76 49.00
39 11.15 76 40.00
39 06.82 76 35.40
39 03.50 76 32.30
39 00.00 76 20.00
38 55.00 76 25.00
38 45.00 76 25.00
Eastern Bay
38 45.00 76 25.00
38 55.00 76 25.00
39 00.00 76 20.00
39 00.00 76 19.10
38 57.10 76 11.85
39 05.00 76 00.00
38 50.00 76 01.65
38 44.10 76 10.50
38 50.00 76 16.50
38 45.00 76 20.00
38 42.50 76 20.50
Choptank River
38 23.50 76 20.00
38 45.00 76 25.00
38 42.50 76 20.50
38 45.00 76 20.00
38 50.00 76 16.50
38 44.10 76 10.50
38 50.00 76 01.65
39 05.00 76 00.00
39 05.00 75 45.00
38 45.00 75 45.00
38 45.00 75 50.00
38 21.93 75 55.00
38 25.00 76 06.80
73
-------
Latitude Longitude
Deg Min Deg Min
Latitude
Deg Min
Longitude
Deg Min
SEC. 8. Patuxent River
SEC. 11. Upper Potomac River
38
38
38
38
38
38
38
38
15.00
35.00
58.00
55.00
42.90
30.00
21.66
18.00
76 25.45
77 00.00
76 45.00
76 37.50
76 35.00
76 32.30
76 23.50
76 22.83
SEC. 9. Middle Western Shore
38
38
38
38
38
38
38
38
38
38
02.85
05.00
15.00
18.00
21.66
30.00
42.90
45.00
23.50
05.00
76
76
76
76
76
76
76
76
76
76
19
21
25
22
23
32
35
25
20
10
.40
.54
.45
.83
.50
.30
.00
.00
.00
.00
SEC. 10. Lower Potomac River
37
37
37
38
38
38
38
38
38
38
38
38
37
53
55
53
06
15
20
24
35
15
05
02
05
.40
.50
.85
.15
.00
.00
.20
.00
.00
.00
.85
.00
50.00
76
76
76
76
77
77
77
77
76
76
76
76
76
14.45
18.15
28.00
53.00
06.40
09.40
14.08
00.00
25.45
21.54
19.40
10.00
10.00
SEC. 12.
SEC. 13.
SEC. 14.
38 15.00 77 06.40
38 20.00 77 24.80
38 27.65 77 25.00
39 01.80 77 17.10
38 58.00 76 45.00
38 35.00 77 00.00
38 24.20 77 14.08
38 20.00 77 09.40
Middle Eastern Shore
38 11.10 76 13.30
38 23.50 76 20.00
38 25.00 76 06.80
38 21.93 75 55.00
38 45.00 75 50.00
38 40.00 75 37.00
38 00.00 75 38.00
38 00.73 75 49.50
37 57.10 75 50.30
37 55.00 75 55.10
38 11.70 75 59.00
38 13.60 76 05.83
Mid-Bay Island Complex
37 45.00 75 58.30
37 50.00 76 10.00
38 05.00 76 10.00
38 11.10 76 13.30
38 13.60 76 05.83
38 11.70 75 59.00
37 55.00 75 55.10
Lower Eastern Shore
37 00.00 75 58.95
37 20.00 76 10.00
37 38.75 76 10.00
37 50.00 76 10.00
37 45.00 75 58.30
37 55.00 75 55.10
37 57.10 75 50.30
38 00.73 75 49.50
38 00.00 75 38.00
38 00.00 75 30.00
37 46.45 75 39.30
37 20.00 75 55.50
74
-------
Latitude
Deg Min
Longitude
Deg Min
Latitude Longitude
Deg Min Deg Min
SEC. 15. Reedville
SEC. 18. Mobjack Bay Complex
37
37
37
37
37
37
37
37
37
38.75
37.40
38.05
44.35
48.00
53.85
55.50
53,40
50.00
76
76
76
76
76
76
76
76
76
10.00
21.40
23.50
23.00
28.00
28.00
18.15
14.45
10.00
SEC. 16. Rappahannock River Complex
37 26.50
37 25.00
37 28.00
37 29.00
37 32.00
37 49.15
37 53.73
37 58.00
37 48.00
37 44.35
37 38.05
37 37.40
37 38.75
76 10.00
76 18.08
76 20.00
76 25.00
76 35.00
76 48.00
76 49.65
76 45.45
76 28.00
76 23.00
76 23.50
76 21.40
76 10.00
SEC. 17. New Point Comfort Region
37
37
37
37
37
37
37
37
17
19
20
21
22
25
26
20
.45
.45
.00
.00
.25
.00
.50
.00
76
76
76
76
76
76
76
76
16
16
17
17
19
18
10
10
.16
.62
.40
.40
.50
.00
.00
.00
37
37
37
37
37
37
37
37
37
37
37
37
37
37
17.00 76 19.33
16.25 76 22.50
17.00 76 25.42
16.50 76 28.50
20.00 76 31.88
25.75 76 31.00
29.00 76 25.00
28.00 76 20.00
25.00 76 18.00
22.25 76 19.50
21.00 76 17.40
20.00 76 17.40
19.30 76 16.62
17.45 76 16.16
SEC. 19. York River
37
37
37
37
37
37
37
37
37
37
37
37
37
37
37
14.00 76 22.50
13.25 76 24.00
12.50 76 27.50
07.30 76 28.20
14.00 76 36.50
16.72 76 43.65
26.29 76 49.77
30.55 76 40.00
28.56 76 35.00
20.00 76 31.88
16.50 76 28.50
17.00 76 25.42
16.25 76 22.50
17.00 76 19.33
14.00 76 19.33
75
-------
Latitude
Deg Min
Longitude
Deg Min
Latitude
Deg Min
Longitude
Deg Min
SEC. 20. Lower Western Shore
Chincoteague Bay
36
36
36
36
36
37
37
37
37
37
37
37
37
37
37
37
37
49.11
45.75
55.85
57.79
58.00
01.05
03.68
00.60
07.30
12.50
13.25
14.00
14.00
17.00
17.45
20.00
00.00
75
76
76
76
76
76
76
76
76
76
76
76
76
76
76
76
75
58.05
07.00
16.00
16.00
17.70
18.52
19.80
24.00
28.20
27.50
24.00
22.50
19.33
19.33
16.16
10.00
58.95
SEC. 21. James River
36
36
36
36
36
37
37
37
37
37
37
37
37
37
37
36
36
36
45.75
40.00
40.00
40.00
55.63
17.30
20.15
27.45
26.29
16.72
14.00
07.30
00.60
03.68
01.05
58.00
57.79
55.85
76
76
76
76
76
77
77
77
76
76
76
76
76
76
76
76
76
76
07.00
10.00
30.00
40.00
40.00
18.00
14.00
08.10
49.77
43.65
36.50
28.20
24.00
19.80
18.52
17.70
16.00
16.00
37
38
38
38
38
52.50
00.00
07.50
15.00
15.00
38 22.50
38 30.00
38 30.00
38 22.50
38 15.00
07.50
00.00
52.50
51.00
51.00
38
38
37
37
37
75 30.00
75 30.00
75 22.50
75 17.50
15.00
15.00
10.00
02.50
75 02.50
75 07.50
75 10.00
75 15.00
75 20.00
75 22.30
75 30.00
75
75
75
75
76
-------
APPENDIX C
Topographic Quadrangles For The Chesapeake Bay And Chincoteague Bay
Showing The 1989 Distribution And Abundance of SAV. (Boundaries Of
Individual SAV Beds Are Delineated By Solid Lines. Each Is Identified
With A Letter (a-z) And A Number (1-4). These Numbers Represent The
Density Classification Discussed In The Text And Fig. 6, i.e. 1 = <10%; 2 =
10-40%; 3 = 40-70%; 4 = 70-100%. Ground Truthing Is Represented By
Symbols And Species Codes Which Are Explained In The Legend On Each
Map.)
77
-------
UNITED STATES
OLPAKTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
Va
Tn
U
Zone
Ru&>
Myno
fotan
Poian
7mm
fJajas
Ffade
Vallu
Trap
Unk
a manna (eelgra
ingeton peclinatu.
SS)
eon grass]
(Eurasian watermilloil)
j (redhead grass]
(sago pondweed)
cttetliapalusiris (horned pondweed)
spp (naiad)
a canadeniis (common elodea)
neria omencanji (wild celery)
own s pea es composition
Hv
Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hvdn/fawnmHflwthydnlla)
Heteranihera dubia (water siargrass)
PotamageiontmpiiS (curly pondweeO] J
Pviamogeionpusiliw, (slender pondweed)
N«Jm g^law.Ki, (southern naiad) 1
fhuraip ImuskgraSS!
'•ajas minor (slender naiad)
SCALE 1 24 000
s 0
SURVEY STATIONS
•
A
•
*
1 KILO
MD Charter Boat Field Survey
Citizens Field Observation
VIMS Field Survey
USGS Survey
USF & WS Survey
VIRGINIA INSTITUTE
OF MARINE SCIENCE
DATE FLOWN
8-8-89
ABERDEEN,
MD
002
78
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
HAVRE DE GRACE QUADRANGLE
,v \-i. :, ^ :.\w
SUBMERGED AQUATIC VEGETATION 1989
-i^^mvky? 1, rv j , -* K ' - - - ~ >~>
# Ground truth provided by Stan Kollar
of Harford Community College
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
SPECIES
Zasiera manna (eelgrass) Hv H\dnlla venicillaia (hydnlla)
Kuppia martuma (widgeon grass) Hd Heteramhera dubia (water stargrass)
Pommage
Poiamoge
Zannichet
nnperfol
on pcctim
apalwr
Najasipp (naiad)
Valtisnen
Trtipa not
wenco
ns (wate
'
aau (redhead-grass)
itus (sago pondweerj)
i (horned pondweed)
common elodea)
10 (wild celery)
chestnut)
P
Cd ( e'liiophyltum demtnum (coontail)
Ppu Potumagfionptiutlus (slender pondweed)
Ngu Najas fuadalupensis (southern naiad)
SURVEY STATIONS
• MD Charter Boat Field Survey
£ Citizens Field Observation
A VIMS Field Survey
Ngr \ojoi gracillima (naiad) A
C r^,,,^,^, 4 USGS Survey
Nm >,„„,„, »„<,,, naiad) SCALE ,« ooo * US F & WS Survey
1 5 0 1 Mil E
— ' •— • • VIRGINIA INSTITUTE
DATES FLOWN >'K
8-8-89 *
8-31-89
HAVRE DE
GRACE, MD
003
79
-------
•V-j UNITED STATES NORTH EAST QUADRANGLE
"V- DEPARTMENT OF THE INTERIOR MARYLAND CECIL COUNTY ,
X GEOLOGICAL SURVEY 5 t»4ii^S « ™»6«Hcui •"'
ira%^F§^'^"^^ -•--^jr™~ /\\ ;fr!
! SUBMERGED AQUATIC VEGETATION 1989/^^/^^j/'^Or
,-
rovided by Stan kollar
-------
•9\ UNITED STATES
% ,. DEPARTMENT OF THE INTERIOR
'' * GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION 1989^
* Ground truth provided by Stan Kollar ^
of Harford Community College ' ,'• J-"5%j^ ' I 2\^-"'^~" "; "^"' \'
,! , - „ -.iys -, ^ "'•"^-^//''*" ' / J,( ' \ i *I'~>yR.- ~* ' -f""'\
[, . :,W', f v'"\ ';' -' >'• '' *j*&^\ riophyllumsp>caium (Eurasian watermilfoil) Per
Ppf Potamoxetunperf/ittatus (redhead-grass) Cd Li
PpC Poiamogewn peainaius (sago pondweed) Ppu Pi
Zp Zanmchelltapalusiris (horned pondweed] Ngu Nt
N Najasspp (naiad) Ngr \t
Va Valhsnena amencam (wild celery) N m ,\t
Tn Trapa natans (waier chestnut)
jp/i>;/ui
m (Go on tail)
rnaqeMnpusillus (slender pondweed)
s graiillima (naiad]
•ujp (rnuskgrass)
^ minor (slender naiad)
SCALE . 24 ooo
SURVEY STATIONS
H MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
it USF & WS Survey
VIRGINIA INSTITUTE
OF MARINE SCIENCE
DATE FLOWN
8-8-89
ELKTON,
. MD
005
81
-------
EDGEWOOD QUADRANGLE
'5 MINUTE SERIES (TOPOGRAPHIC)
...
j.*1* f GROWib "" , ""
'' -
SPECIES
Zm
Rm
Ms
Ppl
Ppc
ZP
N
EC
Va
Tn
U
Zoilera ma
Rupplomai
Mynopftyi
Pommage!
Zuulctoll
nna (ee
grass)
irtma (widgeon grass)
limjpicaium (Eurasian walermilloil)
•jnperjo
•>n pectin
apabn
Nafat spp (naiad)
Unknown
ns (wait
species
a(« (redhead-grass)
ana (sago pondwead)
is (horned pondweed)
common elodea)
na (wild celery)
' cheslnu!)
composiiion
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nrn
Hydnila
Poiamat
Ceratop
verucillaa
(hydnllaj
hera dubia (waier stargrass)
elan crispiu {curly pondweed) 1
eton pusill
NW ,**&***
Nojogr
Char a if
Najas mi
aeillma (n
(musKgr
rjiwi{cooniail)
u (slender pondweed)
(southern naiad) 1
aiad)
iss)
nor (slender naiad)
SCALE 1 24,000
6 0
SURVEY STATIONS
• MD Charter Boat Field Survey
^ Citizens Field Observation
A VIMS Field Survey
A USGS Survey
•^ USF & WS Survey
VIRGINIA INSTITUTE
, KILOMETER Qf MARINE SCIENCE
DATE FLOWN V-.
8-31-89
EDGEWOOD,
MD
007
82
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION 1989
•Ms/.t-
' " ' Va*:
' £ Ground truth provided by Stan Kollar
, of Harford Community College "**»*
ft,, 1 V E R
SPECIES
Zm Zonera manna (eelgrass)
Rm Ruppia mannma (widgeon grass)
Ms Mynophytiumspicaium (Eurasian watermilfi
Ppi Poiamogfionperfufmiui tteflfiead grass)
PpC Potamogeionpecunatus (sago pondweed)
Zp Zannichelhapalusirts (horned pondweed)
N Najas spp (naiad)
EC Eladea canadensis (common elodea)
Va Vallisnena americana (Wild celery)
Tn Trapa ntuans (waler chestnut)
U Unknown species composrtion
Hv Hvdri.
Hd Helen
Per Poiart
matlaia (hydnlla)
m dubia (water stargrass)
in rrispus (curly pondweed)
Cd C traiciphyllvm demefium (eoonlail)
Ppu pmamo^eionpusiUus (slender pondweed)
Ngu tVojoi guatlalupensis (southern naiad)
Ngr Wajas gracillima (naiad)
C Chamsp (muskgrass)
Nm MIKIJ minor (slender naiad)
SCALE, 24000
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
if USF & WS Survey
OF MARINE SCIENCE
DATES FLOWN %.
8-31-89
SPESUTIE,
MD
009
83
-------
SUBMERGED AQUATIC
. VEGETATION 1989
' \ * ? ' ' r~~ - '''/' r-^V<\
:,& | A F'_, Tf^* -^ y \N "E 1 c ~^X"?
i / >-' ,\ ',- \ •- ''^.: -
• -j\ '.- / ~ . Nh
' b \
)(e Ground truth provided by 31an Hollar
of Harford Community College
' y, ..», _ lilnd , -
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
tomnma
"w»™
/'otomogei
focamoger
Zannlcfull
nna (ee
grass)
iiima (widgeon grass!
umipicaium (Eurasian Wale
jnper/oi'iariii (redfiead-gras
apa/uji
Hclaspp (naiad)
7"ropa naii;
Unknown
species
is (horned pondwe
common e lode a)
na (wild celery)
r chestnut)
corn position
SPECIES
Hv
Hd
rmiltoil) Per
sj Cd
d) Ppu
=K« Ngu
Ngr
C
Mm
Hydnlla wniciHota
Heie
/"ofo,
anlheradubia
(hyd
nlla)
(water stargrass)
is (curly pondweed)
Pntamogtttinpusinus (Si
Wajoj guadalupens
Naja
Cha
(coontail)
nder pondweed)
s(soutnern naiad)
s jjraalhma (naiad)
ajp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
e'naladl SCALE, 2«oo * USF&WS Survey
' ' '
_ VIRGINIA INSTITUTF
1 ""°"™" OF MARINE SCIENCE
"""" DATE FLOWN
8-889
EARLEVILLE,
MD
010
84
-------
UNITED STATFS
\ u DEPARTMENT OF - Ht INTERIOR
J% GFOLOUCAL SbRVt/
DDLE RIVER QUADRANGLE
MARYLAND-BALTIMORE CO
MINUTE SERIES (TOPOGRAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
tx£ti$ -i
.
fe^*' " * %
rs3*vsN- ->-
I(K £ v-> x<.
Zm
Rm
Ms
Pol
Ppc
Zp
N
EC
Va
Tn
U
Zcslera ma
ftuppia mil
MynopAW
POMmOJt«
Potamaget
Zannichfll
SPECIES
nno (eelgfass) Hv
itimj (widgeon grass)
am spiraium (Eurasian watermilloil]
in per/oitaius (tedtiead- grass)
onpecnnatus (sago pondweed}
apaiuxtris (horned pondweed)
Na;as spp (naiad]
VatLsntria
Trapa aatz
Unknown
wncncana (wild Celer^l
ns (water chestnut)
species composition
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydrilla venic
Heteranthera
Potanuigeian
C.rowpM^
PotamfiRtion
Najas guodatu
Chara sp (mu
Itaia (hydnlla)
ubta (water stargrass)
rtspus (curly pondweed)
demersum (coontail)
usiiius (slender pondweed)
pensis (southern naiad)
w (naiad)
skgrass)
SURVEY STATIONS
• MD Charter Boat Fi
>ld Survey
0 Citizens Field Observation
A VIMS Field Survey
t USGS Survey
Ntw* aMor (slender naad) ^^ ^ ^ ^ ^ USF & WS Survey
1 S 0
1 i 0
iMILf
INSTITUTE
SCIENCE
DATE FLOWN
8-31-89
MIDDLE RIVER,
MD
013
85
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
UNITED STATES
DEPARTMEN
CORPS OF ENGINEERS
GUNPOWDER NECK QUADRANGLE
MARYLAND
75 MINUTE SERIES (TOPOGRAPHIC
CORPS OF ENGIN
- -- — - V5J-V^— -- ' _ < -- LJL— _ - ™"''^™'
Sfa^TA'TT^, - 1
SUBMERGED AQUATIC
- Hlf / I •---,
T\ i ^ * ^
L.^V,,.? ,-xy \ 2,;~ ',
__ - . .
' ^^^x
VEGETATION
/_/''-- '
•"'
ftp Smata^y^L ' ^ '* *• ^' S ''-^--^t£-_
I 1" \
\ iCi V pr^\
\ i k"il™"^~~'"=i-4- =-= = "T"~ ~°"
i 1* V ' .--^- I' *.* -,
SPECIES
Zm
Rm
Ms
Ppl
Ppc
ZP
N
EC
Va
Tn
u
Zoslfra ma
Ruppta mat
Myrlophyl
Fo^,s«
PolOmagel
Zannichtll
nna (eelgrass)
mma (widgeon grass)
umspicatum (Eurasian watgrmilfoil)
«j perfeliaius (redhead- grass)
onpecnnaius (sago pondweed)
apalustns (horned pent) weed)
Naias spp (naiad)
Elodea canadtrau (common elodea)
Vallantna
Trapa nata
Unknown
amencana (wild celery)
ni (water chestnut)
sceoes m
Hv
Hd
Per
ca
Ppu
Ngu
Ngr
C
Mm
H\
-------
LIMITED STATES
^ DEPARTMENT OF THE INTERIOR
^ GEOLOGICAL SURVEY
HANESVILLE QUADRANGLE
MARYLAND />'
7 5 MINUTE SERIES (TOPOGRAPHIC! ,-T
SUBMERGED AQUATIC VEGETATION 1989
AMRDEEU -.. --PROVING-. "AGROUND . ... •--->,' , ' / IV v/ ' ' I
•;tr
••i
>i?i
# Ground truth provided by Stan Kollar
, of*Hartord Community College
Zm
Rm
Ms
Ppt
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
Zasten manna (eelgraSS) Hv Hydrllla Mruclllala (hyflnlla) SURVEY STATIONS
Kuppia tnariiima (widgeon grass) Hd Hettranihei'a ttubia (water slargrass)
MynophyUumspuauim (Eurasian watermilloit) Per Pounogw* cnspus (curly pondweecJ) | • MD Charter Boat Field Survey
Poiamogeton perfohaiM (redhead- grass)
Potamogeton pectinaaa (sago pondweed)
Zannichelha paltutns (horned pondweed)
Najas spp (naiad)
Vallisn?fiQ ame ncana (Wild celery)
Trapa natans (water chestnut)
Unknown species composition
Cd Ce«^yH«m
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
BETTERTON QUADRANGLE
MARYLAND-KENT CO
7 5 MINUTE SERIES (TOPOGRAPHIC]
AQUAJIC VEGETAriN 1989
/ <*• m^ji^ /.*)-' SUDIVIt:H'j5|J *UUAIK; vttit|A||9N 19B9 >^ jx^-^sl'"1
ft^w^J
^^.'f./
Ground truth provided by Stan Kollar
of Harford Community-College
SPECIES
Zm Zosiet-a manna (eelgrass)
Rm Ruppia mantima (widgeon grass)
Ms Myriophyllum spicaium (Eurasian waiermilloil)
Ppf Potamogeian perfoliatus (rsdhead-gfass)
PpC Poiamogeton pecnnaius (sago pondweeb)
2p Zannichelliapalustris (horned pondweed)
N Najas spp (naiad)
EC EJodsu canadensis (common elodea)
Va Vallnneria amencana (wild celery)
Tn Trapa naians (water chestnut)
U Unknown species composition
Hv Hydnlla veructllata (hydnllaj
Hci Heieranthera dubia (water siargrass)
Pt r Poiamogeion cnspiu (curly pondweed)
Cd Lertuophyllumdemersum (COOntail)
Ppu Poiamogeion pusillus (slender pondweed)
Ngu Nafta guadalupensis (southern naiad)
Ngr Najas gracillima (naiad)
C Chora sp (mushgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
^ Citizens Field Observation
A VIMS Field Survey
• USGS Survey
/
Nm Nvas minor (slender na^ad) ^^ ^ -^ USF & WS Survey
S 0
(MILE
VIRGINIA INfiTITIITC
,KiLO«ETEa OF MARINE SCIENCE
DATE FLOWN
8-8-89
BETTERTON,
MD
016
^oTO-i™.^..^
88
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
UNITED STATES
GALENA QUADRANGLE
•1. MINUTE SCKLCG (TOPOGRAPHY
v;,Pcr,Q< SUBMERGED AQUATIC VEGETATION 1989
cr > }\ ' — --^ ' ' v\ !
1 -* } — "" \ ^> - "^ "^-"x
«.4v//j x^--' i "' y
# Ground truth provided by Stan Kollar ^f f , ^xj / ^\^^^C/" .
Lj\v/ LX \ 1.3, ' y - — v ;sx t~' ol Hartord Community Cottege , H^, V /\ /' ^'jfu^^^' ;,«^ "4,
^i^, ^-A /% /" '"~\^-^-' '
JO
SPECIES
Zm Zosiera manna (eelgrass)
Rm Ruppia mannma (widgeon grass)
Ms Myriophyllumspicaium (Eurasian watermilfoil]
Ppl Poiamogeton ptrfoiiaiui (redhead-grass)
PpC Potomogetort pecitnatus (sago ponflweed)
Zp Zanmchelliapalustrss (homed pondweed)
N Najasspp (naiad)
EC Elodea canaderaii (common elodea)
Va Valhsnerta amencana (wild celery)
Tfl Trapa natanl (water chestnut!
U Unknown speaes composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nrn
1-1 v// •"' /'' \
"•""•
Hydnlla verucMaia (hydnlla)
Heteranihera duina (water stargrass)
Potamogeton crtspus (curty pondweed)
Ceraiophyllumdemersum (COontail)
Potamogeionpusillus (slender pontlweed)
Naias guadalupews (southern naiad)
jVa;os grac'U'ma (naiad)
CAiarasp (muskgrass)
A\ \\ r;j> '" -VV •r-^^^siJ1,l,
•*-" *
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
^™^lslend,rna,ad) ^ ^ ^^ ^- USF & WS Survey
1 5 0
1 5 0
1MILE
VIRGINIA INSTITUTE
DATE FLOWN \
8-8-89
GALENA,
MD
017
89
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
76°37'30"
CURTIS BAY QUADRANGLE
MARYLAND
75 MINUTE SERIES
SUBMERGED AQUATIC VEGETATION 1989
v •
/ I
'
-"
Z'W
Zm
Rm
Ms
Ppf
Ppc
zp
N
EC
Va
Tn
U
r
i
j
f
\
T
M>nop/ij(i
/'ota/nogef
Potamosei
Zaamchflli
L \} "- ~? '^ V^JX ,V. X %' -.^-^.-..i
\V\ " .\^* -' 0 - .. -v - • ,- ^, ^ '• .-; •'
' \\ '- .LlTOlConut . ' B • JrK»kS,» • ' X X
- , 1\\ ** » ' Bl N N ^ ««.«
\ \- <• ' — , - .! ' . - _/S^"
i\ ' ' ~ ' t?&- "'" ;*"" ' " =' **" ^' ' '
' ^^^ \ n . . • «=» '' ' "' . / _J
r^A-rro ^1 /-M.(M
SPECIES
™(eela,ass) Hv HyA.lto ,,,u,lla,a (hydnlla) SURVEY STATIONS
lima (widgeon grass) Hd lletfranthera dubia (water slargrass)
^w.cu^lEurasianwale.mllo.l) Per paam,,mmp^ (curly pondweed) I • MD Charter Boat Field Survey
»,«*/,„« (r^ftead-grassi Cd £«„,»*,»»&«„», (coomaii) 0 Qbzens Field Observation
npecrinarui (sago ponaweed] PpU Pommcgeionpusitlus (slender pondweed)
3 palusins (horned pondweed Ngu Najas guadaiuperuis (southern naiad) A VIMS Field Survey
Najeu ipp (naiad) Ngr Nujas gracillima (naiad) A
„ • USQS Survey
Etodta canadsnsis (common elodea) '- ( ham sp (muskgrass) *
Vallisneria
Trapa nata
Unknown
americana (wild celery) Nm Vajoi minor (slender naiad) -^- USF & WS Survey
ru {water chestnut) i 5 o i MILE
«~™« ^rrnnc^n VIRGINIA INSTITUTE
8-25-89
1 0-5-89
CURTIS BAY,
MD
018
90
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SPARROWS POINT QUADRANGLE
MARYLAND
t 3 MINUTL SLWItb (IOPOCRAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
s£^:c--jm-w • •"s-/
^r >,.-{ ^:r"sr ;>^& //
^^fe^fe;': x^^"" L,
Zm Zostera marina (eelgraSsj
Rm tfuppia martttma (widgeon grass|
Ms Mj/riophyllumspicatum (Eurasian watermil
Ppt f otomogeionperfolmiui (tedhead-grass)
PpC Poiamogeion pectinaius (sago pondwe9d)
Zp Zanruchelliapalustrts (Horned pondweed)
N ftajtu spp (naiad)
EC Elodea canadensu (common elodeal
Va Vafiisnenfl omencuna (Wild celery)
Tn Trapa natans (water chestnut)
U Unknown species composition
SPECIES
Hv Hydnlia vtntctllala (hydnlla)
Hd tttttranl/tfradubta (water stargrass)
oil) Per Poiamogeion cnspia (curly pondweed)
Ppu Poiamogeion piuilliu (slender pondweed)
Ngu Nalas guatlaluptruis (southern naiad)
Ngr Najas graallima (naiad)
C Chora sp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
^ Citizens Field Observation
A VIMS Field Survey
A USGS Survey
Nm NWU minor (sKixtor naiad) "J^ USF & WS Survey
1 5 0
1 ! 0
1MILE
, «U»EIER OF MARINE SCIENCE
DATES FLOWN
8-25-89
10-5-89
SPARROWS
POINT, MD
019
91
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
UNITED STATES
CORPS OF EMQ,NEERS
SUBMERGED AQUATIC VEGETATION 1989
^\^ --.C /H ' S S A P E A K
B A ; Y
, ^ 7' ^ ,. 1.
•» v S CA2 • \ X
' ''
, BA3
\
1
, \
SPECIES
Zm
Rm
Ms
Ppl
Ppc
Zp
N
6c
Va
Tn
U
Zojrera manna (eelgrass)
Ruppia marMma (widgeon grass)
Myriophyllum spicatum (Eurasian watermiltoil)
Potamogetanperfoliaim (redhead-grass)
Polamastlonpecllmum (sago pondweerj)
Znnnictiellia paiusins (horned pondweed)
fja,asspp (naiad)
Elodea canadensu (common elodea)
Va/luneria amertcana (wild celery)
Trapa Hataru (water chestnut)
Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngti
Ngr
C
Hvdrilla verticillaia
dydnlla)
lleieranthera dubia (water slargrass)
Posamogelon crispus (curly pondweed}
Ceratnphyitum demersum (COOHlail}
faiamogeion pusittus (slender pondweed)
iVo/oj
Haju
Char
Najas
tuadalupensts
(southern naiad)
gracilhma (naiad)
isp (mushgrass)
minor (slende
SURVEY STATIONS
• MD Charier Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
A USGS Survey
rnaial" SCALE, 24»o *USFSWS Survey
ISO i MILE
S .
' VIRGINIA INSTITUTE
immtTEK OF MARINE SCIENCt
DATE FLOWN
8-31-89
SWAN POINT,
MD
020
92
-------
V> UNITED STATES
V(VV<- DEPARTMENT OF THE INTERIOR
' f* - GEOLOGICAL SURVEY
iSTTj-
UNITED STATES
DEPARTMENT OF THE ARMY
CORPS OF ENGINEERS
ROCK HALL QUADRANGLE
MARYLAND-KENT CO
75 MINUTE SERIES (TOPOGRAPHIC)
SUBMERGED AQUATIC VEGETATION
-"iTW^T"1^* (T
AA2\f -' f ! %*
>Wj»Ppf w ^
f¥ ,-£ «„,»,,, -^ IMOOBOfEEr:
Zm Zosura marina (eelgrass)
Rm Ruppia manttma (widgeon grass)
Ms Mynophyttumsptcatum (Eurasian watermi
Ppf Potamogeianptrfoiiatiii (red head -grass)
Ppc Pouonogtton peciinaius (sago pondweed}
Zp Zanruchetlia palusirif (horned pondweed}
N Najas spp (naiad)
EC Elodea canadensu (comrnon etoOea}
Va Vallanena americana (wild celery)
Tn Trapa natara (water chestnut)
U Unknown species composition
L\~ '\ r^ ^ •-•
< r^ - ^4--^ v^?k>.
^y»"--. ,^..Z&>
•""•"""""•- * i?w — - *
SPECIES
^ " • • >xi • ~ /^"^' T' •'• /"
\^a\T^^O? 4 - ''' ^
vC/T1 , + U-. - ' .-H..I,,,. V," " •/ ^
^" ?^' - rv;^^-— -^ -<^ 4-
•o) ,,„.._.,„,,-,, 7fi°hT
HV WjKfr.Ha wnntow (hydnlla) SURVEY STATIONS
Hd Heieranihera dubia (water starprass)
oil) Per Potomogeton crispus (curly pondweed)
Cd Certuophyllumdtmersum (COOntail)
Ppu Potomogtton piaillus (slender pondweed}
Ngu Najos guadalupensis (southern naiad)
Ngr Najas gractiiima (naiad)
C Chora sp (musKgrass]
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
Nm ««„„„, (slenonna.ad) SCALE 124 000 •* USF S WS Survey
ISO 1 MILE
0
umrjiwia IKISTITIITP
i KILOUEI,, OF MARINE SCIENCE
DATE FLOWN
fl T1 RQ
o-o i -oy
ROCK HALL,
MD
021
.«'™™".'-"ED.,S",.»
93
-------
ROUND BAY QUADRANGLE
MARYLAND-ANNE ARUNDEL CO
'5 MINUTE SERIES (TOPOGR APhl(
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
u
Zosiera marina (eelg
Ruppia marmma (wi
Myi'jphyltum spicari,
Poiamogetnn per folia
ass)
geori grass)
\m (Eurasian watermilloil)
ins (redhead grass)
Pntamogeton pectintuiu (sago pondweedi
Zamtthelliapalusm
(horned ponijweed)
Najas spp (naiad)
Vallisnena amtncam
Trapa nataiu (water
nown spec.
(wild celery)
chestnut)
n
ompos. 10
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
Nm
//wWtovnwiHaKi
(hydnlla)
liettranthera dubia (water slargrass)
PvMWonuap
(.truvphtUvnd**,
Pftiamngfinnpusil
Vaja* guadaluptK,
fZ^Mmu'ir
\a1a': minn' (Slend
ii (curly pondweed)
WWH (coontail)
itt (slender pondweed)
s (southern naiad)
a.ad)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
SCALE, « ooo *USF&WS Survey
> •
1MIIE
VIRGINIA INSTITUTE
i moires OF MARINE SCIENCE
DATES FLOWN
8-25-89
10-5-89
ROUND BAY,
MD
023
94
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION 1989
Zm
Rm
Ms
Ppc
ZP
N
EC
Va
Tn
Mynophyllu.
7aarachellut
Najas spp |
klodea cana
Vallunena
Trapa naian
SPECIES
no (eelgrass) Hv Uydrttla veniultata (dydnlla)
tma (widgeon grass) Hd Heitramhera dab\a (water stargrass)
mspicatum (Eurasian walermiltoil) Per Pviamogetoncrtspus (curly pondweed)
pectinatus (sago pondweed] Ppu Poiamfigett/n pusittus (slender pondweed)
palustns (horned pondweed) Ngu iVayas guadalupensn (southern naiad)
naiad) Ngr hajai graiilltma (naiad)
densis (common elodea) C Chora sp (muskgrass)
vnericana (wild celery) Nm Najas mini" (slender naiad)
j (water chestnut! i 5 o
1 0
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
t USGS Survey
OQ if USF & WS Survey
1MILC
IOMETER QF MARINE SCIENCE
DATE FLOWN
8-25-89
GIBSON ISLAND,
MD
024
95
-------
V* UNITED STATES
"""-^V DEPARTMENT OF THE INTERIOR
"^ GEOLOGICAL SURVEY
—i ^,-.,in.-V
JN11 L j sTAl Lb
iR DLHAKlMt-H] 01- LHt AKMY
CORPS OF ENGINEERS
SUBMERGED AQUATIC VEGETATION 1989>*
I tf \ » ^ NV))<^W^M -*^
Vr^- A-' ,K L- ^*-7^3 , -_: JV •? f
SPECIES
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
Zosierc, manna (selg
rass)
Myrtophyllumspicaiurn (Eurasian waiermilloil)
Poiamogeten perfoh
Fotamogeion peciina
ZamKMtopatein
Najos spp (naiad)
Elodta canaderau (c
Vallisnena amencan
Trapa naians (walor
Unknown species
iius (redhead-grass)
iw (sago pondweed}
(horned pondweed)
^mmon elodea)
a (wild celery)
chestnut)
omposition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydnita teriictttata (hycJnllaj
Heteranthfra dubta (water stargrass)
Potamogeton cnspus (curly pondweed)
Paiamogfinnpusilitts (slender pondweed)
Najas guadalupews (southern naiad)
Najas gracithma (naiad)
Charasp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Reid Observation
A VIMS Field Survey
^ USGS Survey
Najas minor (slender naiad) ^^ ^ ^ ^ -^ USF & WS Survey
5 0
— VIRGINIA INSTITUTE
.KILOMETER OF MARINE SCIENCE
.
DATES FLOWN
8-8-89
8-31-89
LANGFORD
CREEK, MD
026
96
-------
UNITED STATES
DEPARTMENT OF THE IN--""1 '
GEOLOGICAL SURVE
UNITED STATES
)RPS OF ENGINEERS
SOUTH RIVER QUADRANGLE
MARYLAND ANNE A*?UNDEL CO
5 MINUTE SERIES ^TOPOGRAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
Zm
Rm
Ms
Ppt
Ppc
Zp
N
EC
Va
Tn
SPECIES
Zostera manna (eelgrass) Hv Hvdrilla vemciiiaia (hydnlla)
Ruppui mantuna (widgeon grass) Hd Heteraiahera dub,a (water stargrass)
Mynophyllam spicali*
Pa lamog etonperfolia
Poiamogeton peclina
Zanmchfltia palustn
m (Eurasian watsrmilfoil)
tus (redhead-grass)
us (sago pondweed)
(horned pcndweed)
Najas spp (naiad)
klodea canadensis (common elodea)
VMto,,™ «*„,»»
Trapa naians (water
n
a (wild celery)
chestnut)
SURVEY STATIONS
Per poumovtoncrapiu (curiy pondweed) i • MD Charter Boat Field Survey
Cd Ceraiophyltumdtmenum (coonta.l)
Ppu Poumogeinn pusittus (slender ponflweed)
Ngu Najas xuadalupensii (southern naiad)
Ngr Naias %raciiiuna (naiad)
C Charasp (muskgrass)
• Citizens Field Observation
A VIMS Field Survey
A USQS Survey
Mm Najasww (slender naiad) SCALE 1 24 000 * USF & WS Survey
I S 0
5 o
iKitoustiR OF MARINE SCIENCE
DATES FLOWN
8-25-89
10-5-89
SOUTH RIVER,
MD
030
97
-------
KENT ISLAND QUADRANGLE
MARYLAND
75 MINUTE SERIES (TOPO "' -
SUBMERGED AQUATIC VEGETATION 1989
r£f^-:
1- J-
--'„--.,.!.,. , - ''•„--
SPECIES
Zm ZoiKra marina (eelgrass)
Rm Ruppia marinma (widgeon grass)
MS Mynophyllum sptcatum (Eurasian watermilfoil)
Ppf Poianutgeion perfoliaius (red he ad -grass)
PpC Poiamogeion pecunatus (sago ponHweed)
Zp Zaamchetha patustris (horned pondweed)
N Na)asspp (naiad)
EC Etodea canadensu (common elodea)
Va Vailisnena americana (wild celery)
Tn Trapa natans (water chestnut)
U Unknown speaes composition
I, ^ - „ ,,i.™r, -
Hi/ Hvdriita \ierni liiaia (hydnlla)
Hd Heteranihera Uubia (water stargrass]
3cr Piaamogeioncrispus (cufly pondweed)
Cd Ceraiophyllumdemersum (COOntail)
3pU PottirnDgeionpusillus (slender pondweed)
^Jgu iVujos ftuadalupensu (southern naiad|
Ngr Ndjaj qraitltima (naiad)
C tharasp (muskgrass)
^ x^ "»"""
/
^•,8, - ,— - — — iw ~- T .— r — , — • — r — —J 3a°5? 3
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
A (JSGS Survey
Nm naja* mini,r (slender naiad) SC^LE ^ ^^ ^ USF & WS Survey
,
VIRGINIA INSTITUTE
UAlbr-LUWN
7-1 5-89
KENT ISLAND,
MD
032
98
-------
UNITED STATES
JTMENT OF THE INTERIOR
UNITED STATES
DEPARTMENT OF THE IN
GEOLOGICAL SURVE
76 15 ,™». ,,
SUBMERGED AQUATIC VEGETATION
/' /
QUEENSTQWN QUADRANGLE
MARYLAND
r / V
'• 7^V
/ /^V- • ••'•.
•SF < T^^
- ' i
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
Zoslera marina (eelgrass)
Kuppia monttma (widgeon grass)
Myriophyllumfpicatum (Eurasian watermiltoil)
Potamogeion pecnnaius (sago pondweed}
Zanmchelliopaluslru (horned pondweed)
Naju spp (naiad)
Elodea canadensa (common elodea)
Valltinena tuntricana (wild celery)
Tropo raaaM (walet chestiurti
Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngu
c9'
Nm
Hydnlla v
Heteramh
Potamoge
erncMwa
era ditbia
Ceratophyllum dem.
Poiamogeton pusili
Najasgua
Charasp
cillinui (n
(muskgr
or (slend
(hydnlla)
(water stargrass)
j (curly pondweed)
rsum (coontail)
u (slender pondweed)
s (southern naiad)
and)
ass)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
t USGS Survey
e'"aiad| SCALE, 24.000 *USF&WS Survey
I 0
_ VIRGINIA INSTITUTE
IKUMCTBI OF MARINE SCIENCE
DATE FLOWN
7-15-89
7-15-8!
QUEENSTOWN
MD
033
99
-------
. .
SUBMERGED AQUATIC VEGETATION 1989
jx
1 f
^ J^V^CH*'*;^^ ^4^"^LBA4! un,iy^ -^^^j"^ ^4f ;
L- l\ x*- -• t iv- -lf^"jf 4, J ,-' < «Su- ri>'\ *.•*»«£ ^ «"-MJt i^'i \^«T* ' HB2I 1 '-'"\ ' i P\ ( ^'jJ 1
- "/-'•«L1'^ ^.<-, ^^-4v^,^mA2! V rtaito' 7^-^V1-
' •r-"TA;.' V.4^.-,', -7>»^^M '^"W-\ i • ft'K'"^'!/!' *J-^J
HU..H. », , p. ^ ••' ' ' '•• * ' \ '- ~ *- •""•"" -,'/-M • (I- '.. ' 5V*" M <^«"<-r
• -' -->-W '•- ; ^ >.,.{^-(i\v - • -A^/t -"< .-a..- MjKT «yj ,- i T/s*s,"
» ! / - .^_ JO ^ \ i. (r_,., ll, • --^,Hot *V_ ^- >T i ' A %•'* " "'
VitA V;I.-..E^,. *•*'•', ;i^fe^^s^^; ' , . „ *!"*'•"• A '^' :,^-^Jr
SPECIES
Z«1™™,,™,eel9,asi, hv ,/, «ta »™< ,ta (.,*„„, SURVEY STATIONS
Mjriopfcj^umipirflium (Eurasian watermilfoih Fcr /-^lom^fi.^fn^w (curly pondweed] • MD Charter Boat Field Survey
Potamattesanperfohaius (rQcihead grass) C d t eraii>t>h\t!ufn dcmenuin (coontail) ^ _ ,- ._.
y • Citizens Field Observation
PniamoKf'onpectinaius^ZQQ ponOweed! FpU ftnamf^eianpiaiiius (slender pondweed)
Zanntchtllia palus
-------
X-i. UNITED STATES
'<•* DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
T
SUBMERGED AQUATIC VEGETATION 1989
DEALE QUADRANGLE
MINUTE SERIES (TOPOGRAPHIC)
• . -"w- " "\ •-. -TV
\ "">^ V. /' ''"'>
v , ; * •i":, ?'/*K™
^ ' ' Fo>'^ 1 '"5s J ' '" "" ,- "»
^-.-!i
^ /
c \ '1
•\, \ -•
1 ^
^?i -f
^ \ • K/^
i „ *^\
/ " ?r0
"""5~-, y= "f ^i^\ , - ^--cta-n™ „„.. " . '>-) .
,/" /^ ! "'- '' • . . -' p,.,(to «»,••' '-.'.>' /
^^- 'x\- • '• ' x ->--• ,y •^T-V'^' //
f" . ^^ ' /'• , )ry^-^v y/
' ' ' Y J ' --- " ' " • M / ' ' /^ /
!/ ,-' l,.s » / ^'':>N>U.L f ./ "
W^^v^ti ^i //X^H /°~-. ,'|tt ' / /;
A^^V'Tx -- --*., -J) • '>•>--- -- i ---p. --!'_ ' / • -
• ••^\ ] \ , s^'-' \\± , \^ • /• ^J • r-
1 - \\^^~ V ^ 11 s )•" """ -- «,,-.'' -"t1 "i'V^s? ^'' / .-;
X / ,s^ — :^S£S\ • ^ - '• . ly-? /#"'•'' iVl"^' K^'"''^' X /"• ^-
i ~^*f*"^ f • -» t' j ™ '' S"t, - CrimrGroiB , ,^ / ,^ °' i ' 7 '*' v. '
-^-VSdL» / >Twy3 1 a --V, - NutWe« ( "'•- \^~ '^-^ * X-, , (, A / , '" «>
/ -^L.nd.ng I - - B"Lt \~ \ V ! ^"- /,-t J^-*^. ' / ,''' " V/
/ / J: J ^ ; 1" i ; r™ t i-.-^ $*#»&& / . '
\ ( 5 ": „ , -• { f J i """ -' ^— "' , V-?-^V ' / " j • /
-\ f . / I S!M.rk, r,_ -L- *x Jj ' ,' ' n.V', , / / /
j-V
\ -""-
Rm Ruppta maruuna (widgeon grass)
MS Myrwphyttum spicatum (Eurasian waterm
Ppf Poiamogeianperfoliatus (redhead-grass)
PpC Potamogeion peainaius (sago pondweed]
Zp Zaaiuchelh a paluaru (norned pondweed]
N Najas spp (naiad)
EC Eiodea canadtnsa (common elodea)
Va Vallunena amencana (wild celery)
Tn Trapa naiaru (water chestnut]
U Unknown species composition
SPECIES
Hv HydrMa veroctffaia (tiydnila)
Hd Heieranihera dubia (water stargrass)
foil) Per Potamogeton crispus (curly pondweed)
Cd Ciralophyllum demersam (coontail)
Ppu Poiamageion pusillus (slender pondweed)
Ngu Najas guafalupensis (southern naiad)
Ngr Najas graallima (naiad)
C Ctuira sp (muskgtass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens F'eld Observation
A VIMS Field Survey
4 USGS Survey
Nm Najas minor (slender naiad) ^ uSF & WS Survey
f 5 0
s a
1 MILE
VIRRINIA INSTITUTE
, «a«tE. OF MARINE SCIENCE
« w™-t
DATE FLOWN
9-28-69
DEALE,
MD
035
.MS^0^'5!?^;
101
-------
UNITED STATES
DEPARTMENT OF rHLlMIE
GEOLOGICAL SURVEY
CLAIBORNE QUADRANGLE
1 5 MINUTE SE^ILS (TJPCGRAPHii. I
,
SUBMERGED AQUATIC VEGETATION 1989
"4 " ~"C«.Cno* -*
SPECIES
Zm Zoittra manna (eelgrass)
Rm Ruppui maruima (widgeon grass)
Ms Mynophyllum spicaium (Eurasian watermiltoil)
Ppf Powmoseionper/oi'iariw (redhead-grass)
PpC Poiamogeion pectinaius (sago pondweed)
Zp Zanmchellia palustrts (horned pondweed)
N Najas spp (naiad)
EC Elodea canadensis (common elodea)
Va Valhsnena amencana (wild celeryl
Tn Ttapa nasans (water chestnut)
U Lfnkn
CO
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
\m
Hydnlla wriiullata (hydnlla}
Heteranihera dubia (water StargraSS)
Petiamogeton irtspus (curly pondweed)
tfraiophyllum dfrnersum (coontail)
Pnmmifgeionpusillus (slender pondweed)
Najas guadatupensis (southern naiad)
Najas gractlhma (naiad)
d/iarujp (muskgrassl
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
A. USGS Survey
Nwum"" (slender naiad) SCALE 1 21 000 'A' USF & WS Survey
5 0
! 0
1UILE
UIORIMIO INSTITUTE
, KIIO«™ OF MARINE SCIENCE
DATES FLOWN
7-15-89
KENT ISLAND
8-25-89
CLAIBORNE,
MD
Ivl I—/
036
102
-------
UNITED STATES
DEPARTMENT OF THC INFERIOR
GEOLOGICAL SURVEY
E \ A S T E R ,V
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
2m
Rm
Ms
ppt
Ppc
Zp
N
EC
Va
Tn
U
Zostera
Ruppia
m {eelg
ass)
naritima (widgeon grass)
Myriophyilum spicaiu
rolm,
eto
perfoho
Potamogetonpecnna
ZannchelUapalustns
Net/as jpp (
Vallune
Trapa n
nac
man
aiad)
dtnsis (C
inter icaiu.
s (water
m (Eurasian watermiltoil)
us (red he ad- grass)
ju (sago pondweed)
(horned pondweed)
ammon elodea)
(wild celery)
chestnut)
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydr
Heier
Poion
tla vemaltaia
anthera dubia
(hydnlla)
water slargrass)
wgeion cnspus (culy pondweed)
Ceraiophyllum denursum (coontail)
Potan
Najas
Najos
Char
Najas
ogewn pusilt
u (slender pondweed}
guadalupensis (southern naiad)
gracifdma (n
jp (muskgr
nad)
ass)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
™™,(s,,n«na,adl SCALE , 24 000 * USF & WS Survey
Unknown species composition
1 S 0
5 °
I MILE
DATE FLOWN
7-15-89
ST. MICHAELS,
MD
037
103
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
FORT BELVOIR QUADRANGLE
VIRGINIA- MARYLAND
5 MINUTE SERIES (TOPOGRAPHIC - BA
•-
SUBMERGED AQUATIC VEGETATION 1989^
Zm
Rm
Ppi
Ppc
ZP
N
EC
Va
Tn
u
Zasie
Rupp
Poian
roian
/am
Najcu
Vdltl
Unk
SPE
.j mcinmi (eelgrass)
u nwritima (widgeon grass)
e>%ewnperfaha\u& (redhead grass)
wgeton pecunaius (sago pondweed)
t.heltia iMitustn\ (horned pondweedl
j;jp (naiad)
«erlaamen«,M(w,W celery.
niiia^i (water chpstnul)
m iti
CIES
Hi/ H^drMti \tmcMata (hydrilla)
Hd Hnfraniheradubia (water Stargrass)
Cd ( , rdtopkyUum demersum (coontail)
Ppu Pi'tamrigftnnpusilius (slender pohdweedj
Ngu Vujui guadalupensi\ (southern naiad)
C Chara sp (musKgrass)
Nm \ajai miner (slender naiad)
SCALE 1 24 0
5 0
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
oc> if USF & WS Survey
1MILE
VIRGINIA INSTITUTE
i KILOMETER OF MARI N E SCI ENCE
DATE FLOWN
10-10-89
FORT BELVOIR,
VA-MD
039
104
-------
"F^:;,;;-- ,~
ffr**'?. '/ .,„.,,,„«.,..„
= SUBMERGED AQUATIC VEGETATION 1989
** -^ t ^^"^X '' Nnnic, ' *fr X ^l"v
i- ^V y -'•'"_' > -1*- ~"j/f,K s '" - ..h« , . ^
'v^X^^.^^^ ;:^:
:•„*. X..J-'_•«'.- ' :. '-,-">::.--'- ,'
MA3 i
>4A2 • .--^ •*-:r^' It v>
NA:-*^
';t^5Sfei
?jlU£^jA4 .^ --'^H;
^^:,:^|j|,
ft^J^sS^
SPECIES
Rrn Ruppui marttima (widgeon grass} hd tlcu'untn 'rad^a >,wate
Ms Myrwphyllumspicatiun (Euiasian watermilfoil) Per i'i>tiim<'/>e «r ..>i\i>ti'> ("urt
PpC Poiamoxelunpecurtains (5ago condweed) Ppu PiiUm^e1' n 'wdt'ts ifeie
Va Valhsnenaamencana (wild celery! Wiri \'' U1 '1|"i'" (Sledder nai,
Tn Trapa natans (water Cliestnul) ^_^
U Unknown species composition
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens F'^ld Observation
A VIMS Field Survey
4 USGS Suivey
if USF & WS Survey
_, = VIRGINIA INSTITUTE
,mi»i IP QF MARINE SCIENCE
DATE FLOWN
A 0-10-89
MT. VERNON,
VA-MD
040
105
-------
UrJITLQ STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION 1989
Rm
Ground truth provided by Court Stevenson of
University of Maryland, Horn Point Laboratory
SPECIES
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
Zostera marina (eel
Ruppv mariiima (w
Myrlophyllum spica
PaanKtamfata
PolamogflonptcllfK
ZmKMlvrrtua
rass)
dgeon grass)
um (Eurasian watermiltoil)
^(r^head-grassj
(in (sago pondweed)
s (horned pondweed)
Najas spp (naiad)
Etadea canadensis (common elodea}
Valltsnena atnerica
Trapa naians (wate
w (wild celery)
chestnut)
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hydrillaverucitlaia (hydnlla|
Heteramhera ditbia (water stargrass)
Potamogeion crispus (curly pondweed)
Ceraiophyllumdemenum (coontail)
Poiamvgeionpitsiiius (slender pondweed)
Alw.I-iiliv.ui, (southern naiad)
Nojas gracllllma (naiad)
Charasp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
9 Citizens Field Observation
A VIMS Field Survey
A USGS Survey
Ha,a muar (slender naiad) ^^^ , 24 ooo 1^ USF & WS Survey
DATE FLOWN
7-15-89
TILGHMAN,
MD
043
106
-------
UNITED STATE&
DEPARTMENT Of I~HF_ INTERIOR
GEOLOGICAL SUHVF^
', I GEOLOGICAL '
™'U- - ,.— _
KA2V
Cffi
.I*
SUBMERGED AQUATIC VEGETATION 1989
# Ground truth provided by Court Stevenson of
i po»Unlver»lty of Maryland, Horn Point Laboratory
SPECIES
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
Va
Tn
U
Zosurama
Ruppia ma
Mynophyl
Poiamoge
ZanmcheU
nna (ee
Kirna (V
grass)
idgeon grass)
turn (Eurasian waterrnilfoil)
on perfi>/iaius (redhead grass)
on pectinatus (sago pondweed|
opa/^,
Najos spp (naiati)
Unknown
is (horned pondweed)
common elodea)
amencana (wild celery)
nj (water chesinutl
species composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hvdri
taw
Potamugeio
C eraiaphytl
\ajos
Naja!
Chan
Na/as
(.(Haia(hydnlla)
tlubta (water siargrass)
tru/jits (cuhy pondweed)
tmdemersum (COODtail)
pustllus (slender pondweed)
guadalupens:s (southern naiad)
sp (n
tma (naiad)
uskgrassl
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
minor (Slender naiad) -jt USF & WS Survey
SCALE 1 24 000 *
5 0
VIRGINIA INSTITIITF
,«,LOMETER OF MARINE SCIENCE
DATE FLOWN
7-15-89
OXFORD,
MD
044
107
-------
SUBMERGED AQUATIC VEGETATION
!i30. t*>,. , ,..
Zm Zostera manna (eelgrass)
Rm Ruppta maruima (widgeon grass]
Ms Myriophyllum spicmum (Eurasian waterm
Ppf Poiamogeion perfotiatus (redhead-grass)
PpC Potamogeton pecttnatus (sago pondweedj
Zp Zanmcheilta palusins (horned pondweed]
N Najas ipp (naiad)
EC klodea canadensis (common elodea)
Va VaHunma amcncana (wild Celery)
Tn Trapa naians (water chestnut)
U Unknown species composition
^iCffl """' "
SPECIES
Hv
Hd
toil) Per
Cd
Ppu
Ngu
Ngr
Mm
ilvdnlla verttctllata (hydnlla)
Patamogeton rnspus (curly pondweed]
( eraiophyilum demersum (coontail]
Patamoifeianpusilliu (slender pondweed)
%<,,« gKvtolup*™ (southern na.ad)
Najtu .rac.ll:™ (naiad}
( hamsp (muskgrass)
\ajas m\nar (slender naiad)
i 5 0
0
Fv '// :^mi
SURVEY STATIONS
• MD Charter Boat Field Survey
9 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
oo * USF & WS Survey
1 MILE
UIBRINI4 INSTITIITF
, KHOUIIBR op MARINE SCIENCE
9-28-89
10-5-89
QUANTICO,
VA-MD
047
B ATHYMETIw' ' AODeiS^SBI
ill HOI IN SE SERIES HM
108
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SJRVEY
UNITED STATES
DEPARTMENT OF THE ARM
CORPS OF ENGINEERS
INDIAN HEAD QUADRANGLE
MARVLAND-VIRGINU y"
7 5 MINUTE SERIES nd
SUBMERGED AQUATIC VEGETATION 1989
Hv.Ms.Va.Cdf1
, >;3»cd.Ms
^Cd M-.
s
Hd,Hv,Va.Ms,Cd# 1 _ __ ./'^''x /I >f . , •' nS:*-" ' ^ "," .""a,™
~" *57 " -'., / -•.-•* .-. :,""' 'V ' " '- ,^__L—
Va.Hd,Hv,Cd,Ms # ~rj ^
' •*?''*' ff * "~*~I / /^
. Hv,Ms,Hd,Cd>>
Zm
Rm
Ms
Ppl
Zp
N
EC
Va
Tn
Kuffpia ma
M»,10pk,i
'<"•»««
Zar.olch^
"""'""'
W,«r,
TropaMT
U
SPECIES
nM (eelgrass) Hv Hydntla vm.c.H^ (hydnlla) SURVEY STATIONS
mwi (widgeon grass) Hd Heieranthera dubta (water stargrass) u
umsptca
on perfol
(naiad)
onmca
is (wate
wn(eutasu»i*ator(Tultom
ariw (redhead-grass)
s (horned pondweed)
cnTimonel-'ea)
w (wild celery}
chestnut!
rvsii
Per Potamageion cr\sptu (curly ponbweed)
Cd Ccroiophvltumdemersum (coontail)
Ngu Najas xuadalupensis (southern naiad]
1 •
•
A
Ngr Naias gractllima (naiad) *
C Chara sp (muskgrass) *
Nrn N
-------
UN,"ED STA1 ES
3E»ARTME\T OF THE l^lL
GEOLOGICAL SURVEY
BENEDICT QUADRANGLE
i> v /• i
- «"\,,,
__ r* \ Foplii Hill
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
Zoslera manna (eelgrass)
Ruppia maniimi (w
Mynophyllum spica
Poiamogeivn perfoi
Folamogfion peclm
ZawMlupalwr
Naiasspp (naiad)
Etodea canadenxu
M/,,«™«™no,
Trupa nabini (wale
dgeon grass)
um (Eurasian watermiKoil)
aim (red he ad -grass)
aius (sago pond weed)
s (horned ponUweed)
common elodea)
na (wild celery)
r chestnut)
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nrn
Hy
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
HUDSON QUADRANGLE
MARYLAND
75 MINUTE SERIES ORTHOPHOTOMAP (TOPOGRAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
Rm
"o.
Ground truth provided by Court Stevenson of
University of Maryland, Horn Point Laboratory
„,.!_
SPECIES
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
Z«™m™(eelorassj
Ruppla marlllma (widgeon grass,'
MvnflpMum Sficarn, (Eurasian watermiltoil)
fam,t,,m e,W:,,iu I rwn.ad-grass,
Poiamogtion ptcttnaius (sago ponOweed)
Zaiuuchelhapaluttru (horned pondweed)
ffajas spp inaiad)
Wunn.«.n»«l« Id celery,
fri^nj naiant (water chestnul)
Unknown soecies composition
hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hvdrdla v
/;e«;-an(>t
/•oiam^s^
Ceraiop>i
ruallaia (nydnllai
ra dubia (water stargrass)
on crwpw (curly pondwe0d)
liamdtmfnum Icoontall)
Potamogetonpusiltus (slender pondweerj}
•»
-------
MARYLAND
WAR DEPARTMENT
CORPS OF ENGINEERS U S ARMY
CHURCH CREEK QUADRANGLE
; _ MINUTE StRlES
SUBMERGED AQUATIC VEGETATION 1989
T"
"x~ '~^-y>'] S C H U R C h
'
Ground truth provided by~eouit.St?¥«n9on of
University of Maryland, Horn Point tifcortter)
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
U
SPECIES
Zauera manna (eelgrass)
Ruppia maritima (widgeon grass)
M ynophyilum spicatum (Eurasian watermilfoil)
Potamogeion perfoltatus (red head-grass)
PoKunogesonpeatnatus (sago pondweed)
Zanmchelha paiusiris (horned pondweed)
Najas spp (naiab)
Elodea canadensa (common eloflea)
Valltsatria americana (wild celery)
Trapa naians (waler chestnut)
Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Hydrilla v€
Heleranlhe
Potamogein
Ceratophy!
uatlata (hydnllaj
a dubta (water stargrass)
ncrispus (curly pondweed)
umdetnersiun (coontail)
npusillta (slender pondweed)
Najas guadalupeni'i (southern naiad)
Najas gracilluna (naiad)
Charasp (mushgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
t USGS Survey
"'"" "•'"*' I*"*' ""«« SCAL£ I2tmj ifUSF&WS Survey
1 S 0 1 MILE
1 I 0
1 KILOMETER Qf MAR|NE SCIENCE
DATE FLOWN
7-15-89
CHURCH CREEK,
MD
052
N3830 W76075/75
112
-------
W1DE*ATER QUADRANGLE
5 MINUTE SERIES (TOPO wn i n
SUBMERGED AQUATIC
VEGETATION 1989
SPECIES
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
L)
ZWIP
Rupp
M>n
/"oru
Polar
7ann
Naja.
Elod
ValU
Irap
flmai-IBa(eei9rass)
a maritima (widgeon grass)
phyllum Citatum (Eurasian waierniilfoil)
nogeton perfotiatus (redhead grassj
nogetan pectinalUi (sago pondweed)
chelliapalustrts (Horned pondweecl)
spp (naiad)
wnaamm^Ma celery)
i/KJiaaclwatercheSlnut)
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
Jh^lwvm.nHflW
Heierantheradubia i
/.,,,,,mo«,racr,w,
LMiWlyttMda*,
Potiimagetnnpusilliu
,\uj(1! guatialupensis
\'ajas minor (slende
hydn»a)
water stargrassl
(curly pondweed|
iufli (coomaii)
[slender pondweed]
southern naiad)
adi
si
SURVEY STATIONS
• MD Charter Boat F
• Citizens Field Obse
A VIMS Field Survey
4 USGS Survey
eld Survey
rvalion
"aiafl) SCALE, 24 ooo * USF & WS Survey
1 5 0
1 MILE
VIBRIUU
INSTITUTE
'««»««« OF MARINE SCIENCE
DATE FLOWN
9-28-89
WIDEWATER,
VA-MD
055
113
-------
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
2m Zasiera manna (eelgrass) Hv Hydrdla lemcillata (hydnlla)
Rm Ruppia marn\ma (widgeon grass] Hd Heieranihera dubia (water stargrass)
Ms Myriophvllutnspicatum (Eurasian watermilfoil) Per Poiamogeion crispus (curly pondweed]
Ppf Poiomogetanperfoliaius (redhead grass) Cd ( eruiophyllum tiemersun: (coontail)
PpC Potamagewn pecunatus (sago pondweed) PpU Potumngetanpusittus (slender pondweed]
Zp Zannichelliapaliuins (horned pondweed] Ngil Najas guadatuptnsis (southern naiad)
N Wa/oj ipp (naiad) Ngr Nujas graidiitna (naiad]
EC Elodea canadens\s (common elodea) C (ham sp (muskgrass)
Tn Trapa naians (water chestnut]
U Unknown species composition
SURVEY STATIONS
• MD Charier Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
if USF 8, WS Survey
VIRGINIA INSTITUTE
OF MARINE SCIENCE
DATE FLOWN %„
9-28-89 ';
NANJEMOY,
MD
056
114
-------
UNITED STATES
DEPARTMENT OF THF INTERIOR
GEOLOGICAL SURVfc V
'"°fF^~ rt ' , f*^o^'^--^^ ^t"% '';^r'-&y •••<>
"m. r,;| j ! SUBMEF?G?? A9UATIC VEGETATION
SPECIES
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
u
Zoslera tnanna (eelgrasS)
ttuppia manuma (widg
M>rlophyllum sptcalam
PoUwtttoHpvfiUVU.
Potamogelon pecitnatus
Zanmckeltiapatusiru {
ongra
Eurasi
s)
in watermilfoil)
(redhead-gtassl
(sago pondweed)
orned pondweed)
Najasspp (naiad|
Valhsnenaamencw(
Trapa na'ans (water Cl
Unknown species co
wild eel
estnul)
npositio
rvi
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydrilla \ertiitllaia (hydnlla)
Htteramhera dubia (waier slargrass)
Polamo%eii>n crapas (curly pondweed)
C«r«opk>ltai,™r,«n(a»nlal)
Polamt>f>etonpustllui (slender pondweed)
Najtu guadatupM* (southern naiad)
fta/as n'acilhma (naiad)
Charasp jmuskgrass)
SURVEY STATIONS
• MD Charter Boa! Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Suwey
""'«' """"
-------
SUBMERGED AQUATIC VEGETATION
SPECIES
Zrn Zostera marina (eelgrass)
Rrn Ruppia maritima (widgeon grass)
Ms MyriopHyllumspicatum (Eurasian watermilfoil)
Ppt Potamogeionperfoliatus (red he ad- grass)
PpC foiamogeton pectinaua (sago pondweed)
Zp Zannichellia palusiris (horned pondweed}
N tJajasspp (naiaO)
EC Elodea canadensu (common elodea)
Va Valtunerm americana (wild celery)
Tn Trapa notans (water chestnut)
U Unknown species composition
Hv Hydnllu vernallata (hydnlla)
HO Heteramhera dubia (water stargrass)
Per Poiamogtton cnspia (curly pondweed)
CO Ceraiophyliumdemersum (coontail)
Ppu Pviamogtion pusilliu (slender pondweed)
Ngu Najas guadalupeiuu (southern naiad)
Nqr Najas gracillima (naiad)
C Chora sp (muskgrass)
Mm Najas minor (slender naiad)
SCALE 1 24 C
,
SURVEY STATIONS
• MO Charter Boat Field Survey
• Citizens F.eld Observation
A VIMS Field Survey
4 USGS Survey
00 if USF & WS Survey
1 MILE
intouBts. OF MARINE SCIENCE
8-31-89
POPES CREEK,
MD
058
BATH^TRY'VoUTtsBZ
116
-------
UNITED STATES
DEPARTMENT OF THh INTLF'OR
, GEOLOGICAL SURVfr
BROOMCS iSLAND QUADRANGLE
75 MINUTE SER1LS (TOPOGRAPHIC]
v'SO>
SUBMERGED AQUATIC VEGETATION
t° i- .^^^Sj&^i'' V^'^rlvf ^0^- £") ^&• V
till^^^*2&'^f
^ ) ^J.\-V>\oils /V -^} ^
'^f^M^^
KiA£,rj
-fe'V^S
^k&S^
I^W" ^-\V- ^ A*^ ^"V-* T~ J, . A \ ' i ' jj 2! H VlftC V "'o "
l%Sfe^«^
r . ... s~aAV; ^ ^»' J\S;^v-- \_/C:W>-°*-^
s;:-'«^iliSc^9^^B
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
U
toslera marina (eelgra
SPECIES
ss)
eon grass)
(Eurasian watermilloil)
Zanruchelltapulu.nns (horned pondweed)
Najaj spp (naiad)
Flo/tea canadensis (cor
rropa naw/u (water c
Unknown species co
nmon elodea]
wild celery)
estnut)
TiDosition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
H\dfMn veriicillaw (tiydnlia)
lleieraniheru dubia (water stargrass)
Poiamoxeion cnspus (curly pondweed) i
(.eratophyllumdemerium (COontail)
PoiamaKeianpiutllus (slender pondweed)
Chara ip (.muskgrgss)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
Najtu minor (slender naiad) , 24 00 "^ USF & WS SufVey
5 0
VIRGINIA INSTITUTE
.MISTER OF MARINE SCIENCE
DATE FLOWN
9-3-89
BROOMES
ISLAND, MD
060
117
-------
UNITED STATES
DEPARTMENT OI THE INTERIOR
GEOLOGIC Al SURVEY
COVE POINT QUADRANGLE
MARYLAND
7 5 MiNUTt SERIES (TOPOGRAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Rm Ruppta mantuna (widgeon grass)
Ms M ynophyllum ipicatum (Eurasian watermilloil)
Ppf Poiamageionperfohatus (red he ad- grass)
PpC Potamogeton pecnnaius (sago pondweed)
Zp Zannwhtlhapalusiris (horned pondweed)
N Najasspp (naiad)
EC Elodea canadensu (common elodea)
Va Vallaneria amencana (wild celery)
Tn Trapa natans (water chestnut)
U Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngu
C
Mm
Hydrilla veriicillato (hydnlla)
Heteraniheradubia (water stargrass)
Putarru>geion trupus (curly pondweed)
Cerawphyllumdemersum (coonlail)
Poiamogesonpustllus (slender pondweed)
Va)as Ruadalupensis (southern naiad)
Najas granllima (naiad)
Charasp (muskgrass)
Najosmi** (slender naiad)
.
t-1-1 r— Ti
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
oo if USF & WS Survey
1 MILE
VIRGINIA INSTITUTE
DATE FLOWN
9-3-89
COVE POINT,
MD
061
w. »» IV HUW ™.
COVE POINT, MD
118
-------
UNITED STATES
•AKIMtM OF THt INTERIOR
GtOLOGICU bURVEY
TAYLORS ISLAND QUADRANGLE
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Zm
Rm
Ms
Ppi
Ppc
Zp
N
EC
va
Tn
u
Zosiera marina (eel grass)
Ruppta mariumo (widgeon grass)
Mvr,0f»M«m spicatum (Eurasian waiermilloii)
PoiamoRtton ptrfoliaoa (red head-grass)
Potamffgeion peainatui (sago ponOweed)
Zanruchelliapolusiris (horned ponOweed)
Najoi spp (naiad)
Eladeo canadensis (common e lode a]
Vallunena americana (wild celery)
Tropo naions \watctr c^estnutl
Unknown speaes composilion
Hv Wvantovm.ntoalnydnllai
Hd Heieranthera dubia (water stargrass)
PCT f oiomojrtioFi cnspus (Oiny por«jweed\
Cd Ceratoph\l!urna(mfrsum (ggoniail)
Ppu Poiamoxfion pusillus (slenOer ponOweecl)
Ngu MJJOJ tuadoiuperaa (soutnern naiad)
Ngr MOIOJ ytacilltma (natad)
C Ctora ip (muskgrass)
Nrn \ajas minor (aiender naiad)
I
I
|
SCALE 1 24 000
, - -
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
if USF & WS Survey
.«LO«TE, OF MARINE SCIENCE
DATE FLOWN '-K.
6-30-89
TAYLORS
ISLAND, MD
062
119
-------
«,"...!/ 'A,
SUBMERGED AQUATIC VEGETATION 1989
GOLDEN HILL,
MD
063
120
-------
KING GEORGF QUADRANGLE
SUBMERGED AQUATIC VEGETATION 1989
DATES FLOWN
8-31-89
9-28-89
KING GEORGE,
VA-MD
065
121
-------
%£,„ UN1TEC STA Ft
vt-v DEPARTMENT OF THF
GEOLOG1CA1 3UH
SUBMERGED AQUATIC VEGETATION 1989
"""'""" "' ' '" ' •""'""-'«""' •" '" "r »'...."•".
Zm ZoJIf rj mil
Rm Ruppiama
MS M^nophyl
Ppf ^lomo^
PpC folamoKC
In / rapa ™jr
U Unknown
,,«(8el3^,
tun spirillum (Eurasian waierm
>n[>frjotiatu5 (redhead-grass)
in (wiinuikj (sago pondweed
(naiad)
wd«wu (Common eloaea.
m (water chestnut)
species composition
SPECIES
Hd IhlsriiniheriiiJutiia (water stargrass)
lloi'i PC futtimoK""" cn-,pus (curly pondweed)
Cd LvMptoltumfrmeaum (coontail)
Ppu Potiimtigeianpusillia (slender pondweed)
Ng, ,,^«ral,,,l(nalad,
O ihtirin.fi (muskgrassi
SCALE 1 24 C
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
^ USGS Survey
.WLOMETEB OF MARINE SCIENCE
DATE FLOWN
8-31-89
DAHLGREN
VA-MD
066
—I.
122
-------
COLONIAL BEACH NORTH QlJADRANGLt
SUBMERGED AQUATIC VEGETATION 1989
1,14. ** J* ^ /
f*^**&<» -%Vw
V ' \ €«U»i Bljt^ .
, ,\~. —rw.-.A, _. _i"'-. - f
•--. -, I
SPECIES
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
Zon
-------
LEONARDTOWN QUADRANGLE
MARYLAND-ST MARYS CO
5 MINUIL SEKitu (lOFUUkAPniLj ^
UNITED STATES
DEPARTMENT-OF THE INTLKIOR
GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION
^
14 ,
f^vrr i^-'v v, /' , ^ , x'^;" K*^/".-! ,-^^A>^:V^ . ISBKJ§? '-*". -j%/~
- ~«-6 * \/ . V ,v ' " / i\- /^-' ^-* - . '< 'X ." - ' i ^frttwo ' X(* ^^^
ft^--? A- ,- - -. v"'-' lv s' , ^. _, -< '^. / ' \ '**-=-
^^ / / "> • r^-x , '•. <*- 1 ' *•"*•» i •' >t,^'i*
k-.;r.'. //p-v^v ,'' -/VH- ' "'" 0 # ./fr--*, - - -fy
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
Va
Tn
U
_,^) ^ f,~ - : a ., ' /*.;: ^ , x C ^ \ __ „ 1
89C™tEFT "" "!0" '""j-"^'~" ' '•" . * */
SPECIES
^irera mfl^ina (eelgrass) Hv Hydnlla verunllata (hydnlla) SURVEY STATIONS
Ruppia maniima (widgeon grass) Hd Heteramhera dubia (water stargrass)
M,nvhyll^Sfiea,m, (Eurasian *alerm(llo,l| Per paam,s,w,c,afla (curty pondvveedl 1 • MD Charter Boat Field Survey
f,^g«,»p^,^ (^head-grass) Cd r,,.»pW^*™^,coo«a(i) • Citizens Field Observation
Paiamogeion pecunaius (sago pondweed) PpU Poiamag.eion pusillus (slender pondweed)
Zanruchellia palusins (horned pondweed) Ngu Najm guadalupfisis (southern naiad) A VIMS Field Survey
sZlT^rJico^o^iod., C9' rIZ°(lTk'rsd) flJSGS Survey
Wu«nni»«nc
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
^SUBMERGED AQUATIC VEGETATION 1989' i.
SPECIES
SCALE 1 24 000
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Fte'd Observation
A VIMS Field Survey
4 USGS Survey
it USF & WS Survey
VIRGINIA INSTITUTE
OF MARINE SCIENCE
DATE FLOWN
9-3-89
HOLLYWOOD,
070
125
-------
SOLOMONS ISLAND QUADRANGLE /,,
MARYLAND " "*
75 WIWTf SFKIfS nOPOdKAI'HH p '
"^^^^m'i i 1); ~
SUBMERGED AQUATIC VEGETATION
2m
Rm
Ms
Ppt
Ppc
Zp
N
EC
Va
Tn
U
toilers manna (eelgfass)
Ruppiamarmma (widgeon grass)
Potamogelvnpfrfollalus (redheaO-grass|
Patamogflan fjtcnnalus (sago pondwead;
Zannichellia paluiiru (horned pondweed1
»««, ,„ (naiad)
Elodea canadensts (common eloclea)
Vallisnena amencana (wild celery)
Trapa naians (water chestnut)
Unknown species composition
SPECIES
HV Hydn
Hd Heier
foil) Per Poiarr
taveraallata (hydnlla)
nikera dubia (water stargrass)
ngeton cnspas (curly pondweed)
Cd Ceratophtfium dtmersum (coontail)
PpL' Poian
Ngil Najas
Ngr Najas
C Chara
Nm No/as
togetun pusillus (slender pondweed]
giMdalupensu (southern naiad]
gracilhntxmad)
sp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
™«r (slender naiad) ^^ ^ ^ ^ ^ [JSP & WS Survey
"s- ' c
.KILOMETER OF MARINE SCIENCE
DA It r-LUWN
9-3-89
SOLOMONS
ISLAND, MD
071
DMA ITU IV SW-SUtmS VtU
SOLOMONS ISLAND. MD
*j
126
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
BARREN ISLAND QUADRANGLE
MARYLAND
75 MINUTE SERIES OBTHOPHOIOMAP (TOPOGRAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
•^hfcoooo FEET 11 >& 13 20 «* "Omr^^" * " 38 «
SPECIES
Rm Kuppia mariiima (widgeon grass)
Ms Myrtophyllum spicaium (Eurasian watermilfoil)
Pp( Potamogeton perfoliaius (red fie ad- grass)
PpC Potamogeion peciinatus (sago pondweed)
Zp Zawchelhapalustns (horned pondweed)
N Nojos spp (naiadj
EC Elodea canaderuis (common elodea)
Va Valttsnena amencana (wild celery)
Tn Ttapa natans (water chestnul)
U Unknown species composition
Hv Hydrdla venicillata (hydnlla)
Hd Heteranthera dubia (water stargrass)
3cr Poiamogfton cnspus (curly pondweedl
Cd Ceraiaphyllumdemersum (COontail)
Ppu PotamoKeton pusillus (slender pondweed]
\lgu NQJOS Kiwdalupensis (southern naiad)
^QT Najas graciltima (naiad)
C Ckarasp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
Nm xiajas minor (slender naiad) ^^ ^ ^ USF & WS Survey
T 5 0
, 5 0
1MILE
DATE FLOWN
6-30-89
BARREN
ISLAND, MD
072
1984
127
-------
'V, UNITED STATES
V DEPARTMENT OF TMF IN
HON(,A QUADRANOLt
-iwviiMi) WMCHtliTHi U>
i; n'1'
SUBMERGED AQUATIC VEGETATION 1989
HoopersviHe" v,l^-'
Rm
.„!_
BRm
SPECIES
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
Zoaera marina (eelgrass)
Ruppia maruuna (widgeon grass)
Mynophyllum spicaium (Eurasian watermilfoil)
Paiamogttonperfohaius (red head- grass)
Pouvnogeton peciinatus (sago pondweed)
Zaruuchetlia paliutris (horned pond weed)
Najasspp (naiad)
Etodea canadensis (common elodea)
Vallutwna amencana (wild celery)
Trapa natans (water chesinul)
Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
HydrtllaverHcilbua (hydnlla)
Heieranthera dubta (water stargrass)
Potamogeton crnpus (curly pondweed)
Ceraiophyltum dtmer stun (coontail)
Potamogetonpusillus (slender pondweed)
Najas guadaiupeiais (southern naiad)
NOJOS gracilhma (naiad)
Chora sp (muskgrass)
Najas minor (slender naiad)
SCALE 1 ?4 000
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
A USGS Survey
if USF & WS Survey
1MILE
VIRGINIA INSTITUTE:
. K,L»STS« OF MARINE SCIENCE
DATE FLOWN
6-30-89
HONGA,
MD
073
128
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
~T
WINGATE QUADRANGLE ^
MARYLAND infHiHis, , ii '•>*>•'
75 MINUTE SERIES OH1H()HHOTOM--:-{--::.-^ --V-. fc
•>:KV-:-:-. - V'^V^.v:: :-':V-:-f^.sr.
V
730-
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
r\rV .-
" \\\ \ Jlm"°n^Si"
V^AVA
•a
Ruppla manuma (widgeon grass)
My,*p*>ll*»,wau>» (Eurasian waterm
Pommogr.ton perfohtiius (redhead grass)
Poiamogfton pecitnaius (sago pondweed'
7annich(lliapalttsiri* (horned pondweedj
Najasspp (naiad)
Flatted canodeniii (common elodea)
VBllMruwnana (wild celery)
7rapa ^aru^ (water chestnut)
unknown .pac.scompp-n
-^/\^:n^fl^;j^-...^ : ^^ ~ "' ' .- >-- /
DA2^^/ (cA4;5 -*'- - o \BM , /
-- """"^^^ \.-: . : -,-- V ^»J7AA4. SSi"V
» ._UFni « . « «„„„..,„,.«««.„,„.„, „ „„.„ .„
SPECIES
HV //,<,„»„, »,„„«,,„ iMniia, SURVEY STATIONS
Hd l/eicruniticru dubia (waler slargrass)
fo.i) Per /•„,«,,„,«„„, ,,,,™ (curl, pondweed) i • MD Charter Boat Field Survey
Cd r™,»,*«™,/,»,™, 0 Citizens Field Observation
Ppu Poiame>%etnn pustltus (slender pondweed)
Ngij Vajas f>uod, (southern naiad) A VIMS Field Survey
Nqr Ntita\ firait'tima (naiad) *
^ 4 USGS Survey
C Cham '(> (muskgrassl ~
Nm ^,,a,mno, (slender naiad) SCALE 1 24 000 •*• USF 8 WS Survey
5 0 1MILE
VIRGINIA INSTITIITF
s o ,«,LO«ETIB OF MARINE SCIENCE
DATE FLOWN
6-30-89
WINGATE,
MD
074
1982
129
-------
\ UNITED STATES
V DEPARTMENT OF THE INTERIOR
% GEOLOGICAL SURVEY
NANT1COKE QUADRANGLE
MARYLAND
5 MINUTE SERIES OHTHOPHOTOMAP (TOPOGRAPHIC]
V
] f
•SUBMERGED AQUATIC VEGETATION 1989
/,J
-r-
\ C r ' "*'
1 ; "*»v /~
\k, ^-^
/>' C
-CT..C
FISHING BAY
V X j. ;
tfV
/
,^ - N S/-r^
^—^^-" j'
i. ? r^-> / /^wC
'A K U" =-' ^ / -' ** 'f^'
> v T"d ; l \ > * -* •
/^- 3 ( I 'C^vintf/iin x "jWor»A \
9-V? 7 \\ ^ ' ^ J \^* / ~~>
|.^
/
*-f-
%p
Zm
Rm
Ms
Ppt
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
Zosiera manna (eelgrass)
Ruppia marmma (widgeon grass)
Myriophyilum spicatum (Eurasian watermilfoil)
Potamogeionperfoluuus (red head- grass)
Potamagtionpecnnatiu (sago pondweed]
Zanmchellia paiustris (horned pondweed)
Najasspp (naiad)
Elodea canodetua (common elodea)
Valtuneria amertcana (wild celery)
Trapa natans (water ctieslnut)
Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngi
C
Hydiilia \erticiilata (hydnlla)
Heieranihera dubia (water stargrass)
Poiamogeion crapus (curly pondweed)
Ceraiophyllumdemersum (coonlail)
Potamogeion pusillus (slender pondweed)
fJa)os guadatupensis (southern naiad)
Najas gracitlima (naiad)
Charasp (muskgrass)
Najta minor (slender naiad)
s 0
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Fieki Survey
^ USGS Survey
oo if USF & WS Survey
^DUSTER OF MAR|NE SCIENCE
DATE FLOWN s?'
6-30-89
NANTICOKE,
MD
075
130
-------
UNITED STATES
PINEY POINT QUADRANGLE
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
ST MARYS CITY QUADRANGLE
MARYIAND-ST MARYS CO
75 MINUTE SERIES (TOPOGRAPHIC - BATHYMETRJC)
SUBMERGED AQUATIC VEGETATION 1989
'lllf^'
<••;|'V^•**& \';~':;-Rm«.v;~^• i I > •',/ .' w,//•
%VV'>V> tfa -I i :'^
v^feN;^--X-4./'--^-..-
W^v 0'>->sf- , - ;,/
,0,u~\ -X'Tx • •- ,.j v \>-^.. - ., v i'
in -69 JO -. "' " Jl
SPECIES
Zm Zosttia marina (eelgrass)
Rm Kuppia marmma (widgeon grass)
MS Myrtopkyl I am sptcaium (Eurasian watermilfoil)
Ppf Potarnogeton pfrfoliaius (red head-grass)
PpC fotamageion pectinatus {sago pondweed)
Zp Zarmchtlhapalustns (horned pondweed)
N Najasspp (naiad)
EC Elodra canadensu (common elodea)
Va Valtisnena amencana (wild celery)
Tn Trapa natans (waler chestnU)
U Unkn s comoo
w
,; „, ,3 «r GfO
-------
HK i rtltN I wl IIIL INTERIOR
GEOLOGICAL SURVEY
75 MINUTE SERIES ORTHOPHOTOMAP (TOPOGRAPHIC]
1TOMAP (TOPOCRAPHICli **
SUBMERGED AQUATIC VEGETATION 1989
\ " \
VJ / ~>
[,s 591 ^acn ,,, Sj
SPECIES
Zm Zostera marina (eelgtass)
Rm Ruppiamarmma (widgeon grass)
Ms Myriopkyllum spicasum (Eurasian watermttfoil)
Ppf PotamogeionptrfoUatus (redhead-grass)
PpC Potamostion peciinatas (sago pondweed)
Zp Zanmcheltiapalusirtf (horneb pondweed)
N Najasspp (naiad)
EC Elodea canodetaa (common e lode a)
Va VaUisnenaamericana (wild celery)
Tn Trapa naians (water chestnut)
U
nnown spades composiion
,30
Hv HydnUa verttaUata (hydntla)
Hd Heteramhera dubia (water siargrass)
Per Potamogeton cnspia (curly pondweed}
Cd Ceraiophyttumdemersum (coontail)
3pu Potamc/gcuin pustltus (slender pondweed)
^gu Najas guadaluperais (southern naiad)
Ngr Hajas gractllima (naiad)
^ Chora sp (rnuskgrass)
SURVEY STATIONS
B MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USQS Survey
Nm ».^m,^(sM8rna,ad) SCALE t 24 000 * USF S WS Survey
1 E 0
1 S .
'MILE
i KUUETEB OF MARINE SCIENCE
DATE FLOWN ' *"„
6-30-89
RICHLAND
POINT, MD
08?
\J\JC,
1*J3
133
-------
, ^\B>m ? : \A: : -
NIKAN COVE) A "V £ - -V - - ' -
O'- -S-fW\O R t H - r -S \L -A N -C/
J
L •' .„ l ' „
Zm Zostera marina (eelgrass)
Rm Ruppta marttima (widgeon grass)
Ms Mynophyllum spicaium (Eurasian watern
Ppf Potomogewnperfoluuus (redhead-grass
P|JC Poiomogeion pcctinatus (sago pondweec
Zp Zannichel lia palusiris (horned pond we e<
N Najasspp (naiad)
EC Elodea canadcnsu (common elodea)
Vg Valt'Sneriaamencana (wild celery)
Tn Trapa natans (water chestnut)
U Unkn m
r\v ^^-N/ v.
GA2 MY^ 2) JDA2-"*<— v
/ A V \ * f**l A '
"'iV^VS^ ' \7CAZ
, .-. . FA4 ,. ^ „„,,„..„
SPECIES
Hv Hydrtlla verticiitaia (hydnlla)
Hd HeieraniHera dabia (water slargrass)
il(oil) Per Potamogeton crispus (curly pondweed)
Cd Ceraiophy/iumctemersutn jCOQntail)
Ppu Potamogetonpusillus (slender pondweed)
Ngu Najm guadalupensis (southern naiad)
Ngr Najas gracillima (naiad)
C Charasp (muskgrass)
' v /' J Oft Ground Wocjh
0 - / , BA2 1 Ti,
/ " c/ °^ SOUTH MARSH
' oB3a[r l ^> / ISLAND i.w.'-«
' «,^r,«M,.r.,™"'"' '" ,
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
Nm w^Otoavn**! SCALE, 24 ooo * USF & WS Survey
i 5 a
s o
1MIU
IKUWETEB OF MARINE SCIENCE
DATE FLOWN ,'
6-30-89
BLOODSWORTH
ISLAND, MD
083
\J\J\J
.„., ,„„». MHI(
134
-------
UNITED STATES
"X% DEPARTMENT OF THE INTERIOR
"'£ GEOLOGICAL SURVEY
H S H I N G BAY
DEAL ISLAND QUADRANGLE
UTE SERIES ORTHOPHOTOMAP (TOPO
SUBMERGED AQUATIC VEGETATION 1989
" *•
o( •
c i
-'^isa^^Of. > ,
'•'^:'J?- :
^Whrti- ' , "
'-r
\,'- i...'°'o, "i"-'.::"J.-."--".--'--:-V":;--:¥lNfiI ISLAND
4 •'"-', -.:> ^y^M^--/ ^%.
(' ..^ f -'.*._ . ' ,.~- ~\-~ ^svf^r"f^iv-rjrj3-L UF E jcn}* \.r,*."-M E N T
^D-M^ ;,?;-.VrS ^-'.-^: -;(?)."-." V. .[ v:--V-:.-"-
^y -TAl----"."^^Jifc.-V-/:
,.„ •RmSfim'-j
•1A2 4. Am «^
Rm^r Rm
-------
UNITED STATES
•r— _NT OF THE INTERIOR
GEOLOGICAL SURVEY
STATE OF MARYl A
MONIE QUADRANGLE
, / Tvr.;. '-->-.'-*-A fui-i^-\ - ••(-
SUBMERGED AQUATIC VEGETATION 1989
V
/ '
^1
:--:--:-:-;-":V-.\:-/ Rm "X^ Rm GA3° "t"'"' ' f? M
-: c^'Xi CA3 ' ^ i
«^- >' ^t^jL , - 'Ch.mpp, -1
y^— tessj-^*"'""
lV~^^^A3
' , N "
M A N O "• FtshmgPt ^
Co.mal Pt / '
C 6 /" ^^ '
- PsiaPnd're .J * J " V
-i - , " ^Al o<
\ A^^"^', ' M1 oii™"cfr^-—-^so*S---^"
\f ! c«i ^V^r
ReW'S Pt R E V/E L S J, N E C K 1 /
* J^ l ^ J ^ /
* "w l *----;- r
» \ . • -U X ; k-:- -••:,; "'
> v, v >tf v
^ ' » \ :'
' 8»« o-' (- ,
..». "••)•(•»' , ( V 1 — — -
w -11
<7 ( ^—' ••/ \ \- M
/»\ / i ,- \ i , — v \ V^
^X V-/i f "* 'fl *•*• ? *ft— J i~ •= ^U,A\/ __ ^V>;v f \VN '
; ., .... ;-- -^^5r .. „< -sjk / \ v ',-*"< , x\i _.
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
Zojfera manna (eelgrass) Hv Hydnlla vemcitlaia (hydnlla)
Ruppia marmma (widgeon grass) Hd Heieramhera duixa (water stargrass)
Myriophyllum spicaium (Eurasian watermiKoil) Per Poiamogeion crispus (culy pondweed)
Potomogetonperfoliaius (redhead- grass) Cd Ceratophytlum dfmersum (cooniarl)
Poiomogeton pectinatus (sago pondweed) Ppu Poiamogeionpustlliu (slender pondweed)
Zanwcheiha palustns (horned pondweed) Ngu NOJOS guadalupensis (southern naiad)
Najas spp (naiad) Ngr Najas gracillima (naiad)
Elodea canadensis (common elodea) C Chora sp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
f USGS Survey
Valltsnena amencana (wild celery) Nm Myat minor (slender naiad) -^ USF & WS Survey
Trapa nataiu (water chestnut) i s o
5 °
IMILE
,
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GhOLOGICAt bUHVI \
^, ••• - I . • \ • \. •-'
SUBMERGED AQUATIC VEGETATION
X ~"\Y _
Zm
Rm
Ms
Ppl
Ppc
zp
N
EC
Va
Tn
u
SPECIES
Zostfra manna (eelgrass)
Ruppia marnima (widgeon grass)
Myrwpkyltumsptcaium (Eurasian wale mi If oil)
Potamogetonperfohatus (red he ad- grass)
Poiamogtion pectinotus (sago pondweed)
Zarwcheltia palustns (horned pondweed}
Najasspp (naiad)
Elodea canaderau (common elodea)
VatUsnena amencana (wild celery)
Trapa naiara (water chestnut)
Unkn
SI
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hetemnihertiduhia
water slararass)
I'oianiageian trupiw (curiy pondweed) i
1 "°">*""-""'
sum (coonlail)
SURVEY STATIONS
• MD Charter Boat Field Survey
£ Citizens Field Observation
PviamoKeiut' pusiltus (slender pondweed) 1
NajasgwdalupeKU
Najas gracil'ima (na
-------
UNITED STATES
KEDCFS STRAITS QUADRANGLE
A3/V HRm owe,*;.; f'-.-:'
I): --/"f'/V /U"
SUBMERGED AQUATIC VEGETATION 1989
E::;':::r£rB"h'G"""ls"""
SPECIES
Zm Zostera manna (eelgrass)
Rm Ruppta martttma (widgeon grass)
Ms Mynophyllum spicaium (Eurasian watermilfoil)
Ppf Poiamogtianpfr/oiiaius (redhead-grass)
PpC Potomogeionpectinalus (sago ponbweed)
Zp Zatwchelliapatiuiru (horned pondweed)
N Nafasspp (naiad)
EC Elodea canadensis (common elodea)
Va Vallisnerta amertcana [wild celery)
Tn Tropa naians (water chestnut)
U Unknown species composition
SCALE 1 ?4000
Hv Hydntta veruciUaia (hydnlla)
•Hd Heteramkera dubta (water stargrass)
3Cr Poiamngeinn crispus (curly pondweed)
Cd LeraiuphvUwn demersum (coontail)
3pu Pntamngetonpusillix (slender pondweed)
^gu Najas xuadalupensu (southern naiad)
"-Jgr Najas graallima (naiad)
C Charasp (muskgrass)
NO SAV Rn"J,, PAfclNIA INSTITUTE
— Ol\£. nr imnikic coicur-c
SURVEY STATIONS 6-30
• MD Charter Boat Field Survey 1
• Citizens Field Observation " ' "* "
A VIMS Field Survey
4 USGS Survey
Nm ^.,™,(slen0.rna,aO) SCALE , 2-. 000 * USF & WS Survey
> 5 0
, KILOMETER 0 F MARI N E SCI ENCE
DATES FLOWN
6-19-B9 Smith Is
6-30-89 S Marsh Is
KEDGES
I, MD
091
138
-------
UNITED STATES
'% DEPARTMENT OF THF INTERIOR
TERRAPIN SAND POINT QUADRANGLE
MARYI AND-SOMi-RSfc.1 CO
SUBMERGED AQUATIC VEGETATION 1989
sr
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
losltra marina (eelq
SPECIES
rass) Hv
Kuppia maritima (widgeon grass)
Mynuptiyllum splcal
Po:am,,,,o,p,rf,l:
Pota/nogeton peaina
Zanmchellia palustri
Na/as spp (naiad)
Elodea canadensis (
"«'">"«"><"<"«'»
Trapa naians (wate
tm (Eurasian watermilfoil)
rus (redhead grass)
rui(sago pondweed)
(horned pondweed)
ommon elodea)
a (wild celery)
chestnut)
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
Unknown species com position
H\drdla vt'ticillam (hydnlla)
Ifeteraalhera dubta (water stargtass)
Pvmmugeton rrupus (Cufly pondweed)
C^^M'^^-i^^lcoonta.!)
PMamfixeifipiuiHus (Slender pondweed)
iVo/oj %uadalupens:s (southern naiad)
Najai graullima (naiad)
Chora sp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
'""" """' {SM' M] SCALE , 24 ooo * L1SF S WS Survey
1 5 0
! °
r MILE
VIRGINIA INSTITUTE
i KILOMETER OF M ARI N E SCI ENCE
DATES FLOWN
6-19-89 Smith Is
6-30-89 Dea\ Is
TERRAPIN SAND
POINT, MD
092
139
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION 1989
Zm Zostera marina (eelgrass]
Rm Ruppin marinma (widgeon grass)
Ms Mynophytlumspicatum (Eurasian waterm
Ppf Pouunogeion perfohaius (redhead- grass)
PpC Potamogeton pectinatus (sago pondweed)
Zp Zanwchetiia patiumi (horned pondweed)
N Najas spp (naiad)
EC Elodea canodensts (common elodea)
Va Valhsneria americana (wild celery)
Tn Trapa naians (water chestnut)
U Unknown species composition
SPECIES
HV Hydrilla verucillata (hydnlla)
Hd tieieramhera dtibia (water stargtass)
foil) Per Potamogeion crtspus (curly pondweed)
Cd Ceratophyllumdtmenum (coontail)
PpU Paiamogeionpusitlui (slender pondweed)
Ngu Na}0i guadalupensa (southern naiad)
Ngr Najas graciltima (naiad)
C Charasp (muskgrass)
Nm Najas minor (slender naiad)
SCALE 1 24 0
5 °
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
A USGS Survey
if USF & WS Survey
1 kflLE
VIRGINIA INSTITIITF
iKiiousTsn OF MARINE SCIENCE
DATES FLOWN
6-30-89 Big Annemessex R
6-30-89 Manokm R
MARION,
MD
093
140
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
EWELL QUADRAINGLF;
I"" „ " ' ••• AA4
SUBMERGED AQUATIC VEGETATION 1989 ILBAZ
ft
>
SPECIES
Zm Zowo manna (eelgrass)
Rm Ruppia mvmma (widgeon grass)
Ms Myitophyllum spicoium ^Eurasian watetmtllo
Ppf Potamogeton perfoliaius (red head-grass)
PpC Pownogtton peciinaius (sago pondweed)
Zp Zannichettiapalustns (horned pondweed]
N Najasspp (naiad)
EC £fodea canodenju (common elodea)
Va Vallisneria americana (wild celery)
Tn Trapa naians (water cheslnutl
U Unknown species composition
Hv Hydnlla vtmtillaia (hydnlla)
Hd Heieranthera dubia (water stargrass)
Pa Powrnogewn cmpiti (Curly pondweadi
Cd Ceratophyllum demersum (coontail]
Ppu Potumogttvn pusillus (slender pondweed]
Ngu Majas guadalapensis (southern naiad)
Ngr Najas gracilltma (naiad)
C Chara sp (muskgrasa]
Mm Nojas rmnar Blender natafl)
SCALE 1 24 000
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
A USGS Survey
if USF 8, WS Survey
VIRGINIA INSTITUTE
OF MARINE SCIENCE
EWELL,
MD-VA
099
141
-------
UNITED STATES
APARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
GREAT FOX ISLAND QUADRANL !
75 MINUTE SERIES (TOPOGRAPHIC]
SUBMERGED AQUATIC VEGETATION 1989
Rm.Zm
SA2
iRm
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
Zoji
Rap
rama
la mat
ophytl
Poiamogti
Zann
im (eelgra
mma (widge
pIpCCflM/IU
KhtUiapaluitruVn
Najas spp (naiad)
Vallisneria
Trapa nata
Unknown
s)
on grass)
(redhead-grass)
sago pondweedj
orned pondweed!
mon elodea)
amencana (wild celery)
fis (water chestnut)
species composition
SPECIES
Hv
Hd
(oil) Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydnlta vern
Heteranihera
Potamogelon
Ceraiophyllur
Potamogetfin
ttltua (hydnlla)
dubia (wa
cnspus (cu
erstargrass)
dy pondweed)
n ttemenum (coontail)
pusillus (slender pondweed)
Naias guadalupensis (SO
Chara sp (m
ma (naiad
jskgrass)
Najasmtw (slender na
uthern naiad)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
A USGS Survey
""* SCALE, «.ooo -A-USF&WS Survey
s 0
VinfilNia INSTITUTE
.KiLoufTiR OF MARINE SCIENCE
-.-.:. ^=- • »-Js»"
DATES FLOWN
7-1-89 FOX, CEDAR, AND
JANES ISLANDS
6-19-89 SMITH ISLAND
GREAT FOX
ISLAND, MD-VA
100
142
-------
CRISFIELD QUADRANGLE
MARYLAND-VIRGIM*
B37/. -"- ?«'o ^:J-^"^ "' -i
&~ SUBMERGED AQUATIC VEGETATION 1989
>% ;vjsr, - 'T / , /x \ .
rJm&e: '•^srV-T "-- ' • v " -—^\ w-v
JTO^^ ">'••-• r^'-^/^fe
P^ri.» -, - *i- -• wV-> ^
j 3Q •!. i ijorw) I"ET ,-c .i« M •!? •» 'CHesco«esSFx, .„ .„ <7 30- ,ji ^
SPECIES
Zm Zojie/-a marina (eelgrass)
Rm Rtipp'U marmma (widgeon grass)
MS M ynnphyltum spicaiiui (Euf asian wa'ermiltoil)
Ppf Potamogeton perfoltatus (red tie ad- grass)
PpC Potamogeton pecunalus (sago pondweed)
Zp lanmchelha palusins (horned pondweed)
N Najasspp (naiad)
Va Valhsnena amemana (wild celtjry]
Tn Trapa naians (water chestnut)
U Unknown species composition
Hv Hvd
Hd Her
Per Pot
Cd Ccr
PpU />()(
Ngu /vaj
^gr NOJ
C cki
Nm 'va/
rilla verucillata (hydnlla)
ran/ftefa Ju^ia (water stargrass)
mngeion cnspus (curly pondweed)
aiophyllum demersum (coontail)
mnyeion pusillus (slender pondweed)
^Kwafafupcntu (southern naiad)
j gracilluna (naiad)
ru jp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USQS Survey
,,™«,,s,ende,»ad, SCALE , 24 000 * USF & WS Survey
5 0
s 0
(MILE
. KILOMETER
DATE FLOWN
7-1-89
CRISFIELD,
MD-VA
101
*MS JIM IV NE-SeniES ««"
143
-------
UNITED STATES
--RTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SAXIS QUADRANGLE
VIRGINIA MARYLAND
INUTE SERIES (TOPOGRAF
SUBMERGED AQUATIC VEGETATION 1989
'fc'---.~-'*\>:-:'^' ' -
Rm
Us
Ppt
Ppc
Zp
N
EC
Va
U
£osifra manna (eelgrass)
Kuppia man tuna (widgeon grass)
PaiamageSfinperfnliatus (red he ad- grass)
Poiamogftnn peclinnlus (sago pondweed)
£anrucheltia pa'iuini (horned pondweed)
Najat spp (naiad)
Flodea t-anadensu (common elodea)
Vallisneria ameritana (wild celery)
Trapa naiatu (water chestnut)
SPECIES
Hv
Hd
ton) Per
Cd
Ppu
Ngu
Ngr
C
Mm
H^dnllaveratillata (hydnlla)
Heierantheru liubta (water stargrass)
Poiamiigetiin cnspus (curly pondweed) i
Lerwuphyttum deme'sum (coontail)
Potamuxeiontmsiitus (slender pondwead)
Najas guadaluperuis (southern naiad) 1
Najas graalltma (naiad)
Charasp (muskgrass)
Vayu! miniir (Slender naiad]
SCALE 1 24 000
r— - ?—*= ^— =—
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
if USF & WS Survey
VIRGINIA INSTITUTE
,K(LOUETE* OF MARINE SCIENCE
DATE FLOWN
7-24-89
SAXIS,
VA-MD
102
144
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
COMMONWEALTH OF VIRGINIA
DIVISION OF MINERAL RESOURCES
JAMES L CALVER, STATE GEOLOGIST
REEDVILLE QUADRANGLE
VIRGINIA
MINUTE SERIES (TOPOGR,
SUBMERGED AQUATIC VEGETATION 1989
Zm
Rm
Us
Ppl
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
ZMJwa manna (eelgrass)
Ruppia marittma (widgeon grass)
Myrtoptytium ipicalum iEmastan walermilloilj
Potamogetonperfoliaius ( red head -grass)
Potamogeion pecnnatus (sago pondweed)
Zannicheltia palusirts (horned pondweed)
Najas spp (naiad)
Elodea canaderuis (common elodea)
Vailisntria amencana (wild celery)
Irapa naians (water chestnut)
Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydnlla vemcitlata (hydnlla)
lleieranshera dubta (water stargrass)
Pwomogeion cnspiu (curty pondweed) 1
Ceraiophyliumdemersum (coontail)
Poiamogeton pusiltas (slender pondweed) 1
,Va;as gundaiupensis (southern naiad) 1
Najas gracilltma (naiad)
Charasp (muskgrass)
Najas minor (slender naiad)
SCALE 1 24 000
' 5 °
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
-A- USF & WS Survey
iMILE
IOMETER QF MARINE SCIENCE
DATE FLOWN
6-30-89
REEDVILLE,
VA
106
145
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
•"ADRANGIE
'OGRAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
DA2
Zm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
Zaslera manna (eelgrass)
Myriupkyllumspicaiuin [Eurasian walerm
Poiamageion pe'fotioiux (redhead-grass)
Poiamogewnpecnnaiiu (sago pondweed)
ZmachatopOvn, (horned pondweed)
Najajjpp (naiad)
Elodea canaderuu (common elodea)
Vatlilntna americana (wild celery)
Trapa muans (water cheslout)
Unknown species composition
SPECIES
Hv
Hd
loii) Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydrilla ven
Heteramhera
Ceralophyllu,
Polamogeton
ciliaia (hydnlla)
dubia (water stargrass)
crupus (curly pondwged)
mdemermm(coontail)
pusillus (slender pondweed)
Najas guadaluptnsis (southern naiad)
Najas g'acii
ma (naiad)
uskgrass)
slender naiad)
SCALE 1 24,0
; ' " •
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
OQ * USF & WS Survey
IKILOME,,, OF MARINE SCIENCE
DATE FLOWN
6-19-89
TANGIER ISLAND,
VA
107
146
-------
UNITED STATES
DEPARTMENT OF THP INTERIOR
"-.f
COMMONWEALTH OF VIRGINIA
DIVISION OF MINERAL RESOURCES
JAMES L CALVER STATE GEOLOGIST
SUBMERGED AQUATIC VEGETATION 1989
T
2 30 ?'600™ '«' •!' '»
SPECIES
Zm Zosiera marina (eelgrass)
flm Kupp'a marinma (widgeon grass)
Ms Myiophyilum spKaium (Eurasian -walBimillotl)
Ppf Poiamogcionperfotiaius (red he ad- grass)
Ppc Potamogeion pfdtnatus (sago pondwoed)
Zp Zannlckellia palusiris (homed pond weed)
N Najasspp (naiad)
EC Elodea canadenus (common elodea)
Va Vattnnena amencam (wild celery)
Tn Trapa naiaru ( wale r chestnut)
U U k
pe esc
'* 50 '" '" ">J7«°7N «?uri
Hv Hydntta ve'ttcitlaia (hydnlla)
Hd Heieranihe'a dubia (water stargrass)
3C( Potumoijtwii cfispus (curty potidweadj
Cd CeraiopHyUurndemtrsum (coontail)
Ppu foiamogeion piutlltu (slender pondweed)
^Jgu Najas guadatupensss (southern naiad)
Ngr Najas gracillima (naiad)
C Charasp (muskgrass)
him Najas minor (slender naiad)
SCALE 1 24,
1 5 °
.»473D •] !J!
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
A USGS Survey
Q0 if USF & WS Survey
I WILE
VIRGINIA INSTITUTE
.WLOUETER OF MARINE SCIENCE
.„," •„..,«,,,. W<5
DATES FLOWN
7-1-89
7-24-89
CHESCONESSEX,
VA
108
147
-------
UNITED STATES
COMMONWtALTH OF VIRGINIA
PARKSLEV QUADRANGLE
QA3'
'
^<-->;•>•> /V
'c'V*'^yit ,\
^fcJjfcK • • -*&^^&?
^mm^> ^^"T^"**----
^
OA4I
NA2)
,,,P, MA2
k&ffc**™-
DA3/:,
i'-"'. yv \7 •'' *'•*'*"» '<:v
ct%N-?*.fA4 ^fl&--r' --'-''"V*~. ,'Cy/ '•'
BA44^|p%V *^°3&g--' ,T^--/
...,..-*•_. -^ ^ /*,->*-" ~;'
W5^tJ»f-^:< ' !^W:-*^rt i1^^ ^ - 7
^ife->.-.^ ---T^X- /
1 £b~
«^S^''-^*&^%^^^5?v"^t^-?"5^^^ "" -
-A^ W&^i^ff^nWi^' -''- '^~'
'c^&^^i^y^ ^ ""^
-•-' ^jftl;^^^^^ V^"-1-
KA4^/?^;^^.;V'-'-^>i:\^o;V.-".
..*f. JA4Wi;:--^*"3f'•""", ^:-"-""=l-
B2\ , £>&#>.?, ^"™^l^c:-¥^rf^
.. .1A r'---V I T --c--^x^f - :"
ii IA4V5^;J ;• W-^V."-;7;^^^^,
7°, l-
l- '>
y /
LA %
L_
Zm
Rm
Ms
Ppl
Ppc
Zp
N
Eo
Va
Tn
ij
~-~ •*> " , . - > /T_-T /•
',' CZ^^^r X*^-"5* >.-.™^
"W^/'N /" ' "T
i - ' — ' - w
""' " \ -X '.-— - Jf(
^ A ~iS ^ --*
>l\ • " t -•» " >
/ / «<»^ ' V-v
,-'- "'V' ' ' <^* NC' ' '• •<•
:,,,• — _ ™ ^BOTt ^ ,' ~ , ^' ' '. ,S(,
SPECIES
ZoTOram^nmleelgrass) Hv MjA.lto «r,,clu«M (hydnlla) SURVEY STATIONS
Rupptamarmma (widgeon grass) Hd llttf'Onititra ilut/ta (water stargrass)
M,rWWta,p,«,m,(EUras,anw«»rn«»t»i] Per f»»»»i«OTOT^ici,rty pond«e.
-------
t\ UNITED STATES
*''X DEPARTMENT OF THE INTERIOR
COMMONWEALTH OF VIRGINIA
DIVISION OF MINERAL RESOLJRCFS
URBANNA QUADRATIC! E
\ SUBMERGED AQUATIC VEGETATION
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
Va
Tn
U
Zosiera
manna (eelgrass)
IZIwll'I™
Potamo
Potamo
Xetan perfol
geion peain
ZanmcHelha palwi
Elodea
Vailisn
Trapa
Unkno
op (naiad)
canadensis
dgeon grass)
\an (Eurasian walerm
aius (redhead-grass)
aius (sago pondweed)
s (horned pondweed)
common elodea)
er\a amencana (wild Celery)
wtans (water chestnut)
wn species composition
SPECIES
Hv
Hd
toil) Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hydritla vtrncillaia (hydrilla)
Heteramhera dubia (water slargrass)
Pummojttion ci-upiu (curly ponawaeO)
Cerutopiiyllum demenum (COOHlail)
PotamoKeion pusillu.s (slender pondweed)
Najas guadalupeiuu (southern naiad)
Nafas gractll"na (naiad)
Chara ip (muskgrass)
Najas miner (slender naiad)
SCALE 1 24 C
,
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Sur/ey
^ USGS Survey
Q(j ~k USF & WS Survey
I«UUET» OF MARINE SCIENCE
DATp FLOWN
6-30-89
URBANNA,
VA
110
149
-------
UNITED STATES
HF INTFRIOR
IRVINGTON QUADRANGLE
SUBMERGED AQUATIC VEGETATION
Zm Zosiera manna (eelgrass)
Rm Kapp\a marmrna (widgeon grass)
Ms MyrmphyUumsptioium (Eurasian waterm
Ppf Ptjiamogeton peFfoltaisu (redbesd-gcass!
PpC Potamagtion peciinotus (sago pondweed)
Zp ZanrucHelliapatmiiis (horned pondweed)
N Najas spp (naiad)
EC Elodea canaderuis (common elodea)
Va Valiisnena arnencana (wild celery)
Tn Trapa ntiiaia (water chestnut)
U Unknown m n
SPECIES
Hv llvdnila veriiatlaia (hybnlla)
(oil) Per Poiamugeioa cnspus (curly pondweed)
Cd LeraKiptyUumdemersufn fcoorrlail)
Ppu PoiamoxeionpusMus (Slender pondweed)
Ngu Najas guadatupemu (soulhern naiad)
Ngr Na;iu gfiicillima (naiad)
C (.harasp (muskgrass)
Mm Najai minor (slender naiad)
SCALE 1 24 C
1 5 0
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
-A- USF & WS Survey
iKiioueTEfl OF MARINE SCIENCE
DATE FLOWN %.
6-30-89
IRVINGTON,
VA
111
150
-------
V* " "' i
"V>v DEPARTMENT uh Irih m i c.1
*i GEOLOGICAL SURVEY
COMMONWEALTH OF VIRGINIA
DWISIOrJ OF MINERAL RESOURCES
2?^
73 MINUTE SERIES (TOPOGRAPHIC]
SUBMERGED AQUATIC VEGETATION 1989
^•>c5^
-^^v'-,** ( .,-
. *lS~> 1 V i
^•C'A'Vo > ° >, '*
^4^V^ -^
'•• ™- YA3
SPECIES
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
Zosiera ma
Kuppiamar
Myriophyll
Poiamogft
ina (eelgrass]
nma (widgeon grass)
imspicaium (Eurasian watermilfoil)
nperfaitaius (red head- grass)
Poiamogeion pecunaius (sago pondweeO)
Zannichett
apatustns (horned pondweed)
Najas spp (naiad)
Etodta canadtnsts (common elodea)
Vallisnerta
Tropa naia
Unknown
amertcana (wild celery]
ns (water cheslnull
species composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hyclriltaieructllata (hydnlla]
Heiframtiem dubia (water stargrass]
Potamogeion cnspus (curly pondweed)
C^WPA^UM *«*„«* (coonta.1)
PoMmngetonpusiUus (slender pondweed)
twpu gMtUupenu (southern naiad)
Najai graciltima (naiad]
Charasp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
'"""" — (sle"dernaia'1) SCALE, 24000 * USF & WS Survey
1 5 0
, 5 0
1 WLE
VIRGINIA IWSTITMTC
, K,IC»ETF» OF MARINE SCIENCE
DATE FLOWN
6-30-89
FLEETS BAY,
VA
112
151
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
NANDUA CREEK QUADRANGLE
VIRGINIA ACCOMACK CO
7 5 MINUTE SERIES fTOPOCRAPHIL)
SUBMERGED AQUATIC VEGETATION 1989
CHESAPEAKE
BAY
AA2.
,u
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
Zaaeramn
TO (eelgrass)
Ruppta martttma (widgeon grass)
Myrtophyllumsptcatum (Eurasian waterm
Potamogeton
Zamclullu,
perfohaius (red he ad- grass)
peciinaius (sago pondweed)
laliams (horned pondweed)
Najai spp (naiad)
Ehdea canadewi (common elodea)
VallMruat
•nencana (wild celery)
SPECIES
Hv
Hd
toil) Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hydnlla ver
Heteranthe
Potamogeto
iciltata (hydnlla)
a dubio (water stargrass)
n crupus (curly pondweed)
Ceraiophyilumdemersum (coontail)
Potamogeionpusilluj (slender pond we ad)
Najasguadt
Chara tp (
JV^aiir*,
Trapa naiara (water chestnut)
Unknown species composition
lupensis (soulhern naiad)
nuskgrass)
(slender naiad)
1 5 0
0
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
if USF & WS Survey
IMILE
ummulA IklCTITIITC
-KILOMETEB OF MARINE SCIENCE
DATE FLOWN
7-24-89
NANDUA
CREEK, VA
113
152
-------
UNITED STATES
..APARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
PUNCOTEAGUE QUADRANGLE
VIRGINIA-ACCOMACk CO
75 MINUTE SERIES (TOPOGRAPHIC)
T
^"OB3
•; p|
«"?
SUBMERGED AQUATIC
VEGETATION 1989 l\/"
^-'-jKkir^
VE^- -i.-f^f-,1''.,-.-•'• y^
' C^Sf Tic^l
' ® %) W- •
-& • ' / ffvi.™^
• '.-*' r^ .,
j /v ?""> i
^
rf'"
s <*
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
A USGS Survey
* USF & WS Survey
Tnpa «,«,« (water chestnut) , s ™"^ 0' " """
species composi ion
-, D
, KILOMETER QF MAR|NE SGfENCE
DATE FLOWN
7-24-89
PUNGOTEAGUE,
VA
114
153
-------
n -, ..^
~J
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Zm /.aMi-a manna (eelgrass) Hv
Ms Vwophtllumspicatum (Eurasian watermiltoil) Per
Ppf i'otarnfigetttnperfiiltatiu {redhead grassl Cd
PpC Patamngetnnperitnutus (sago pondweed) PpU
Zp £anm<.liettiai>atusirts (horned pondweed! Ngu
N ,\uja! ipp (naiad) Ngr
Va Valluneriaamfritana (wild ceiery) Nm
Tn / rapa nuiaru [water chestnut)
U Unknown species composilion
H\dnitniertiitllo>ta (hydnlla)
Hetfrunthera dutiia (water stargrass)
C eraiaphylium dem, nam (COOntatl)
PouimnnemnpuMiius {slender pondweed)
vwxuodaluiHUH (southern na.ad)
( huraip (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
A USGS Survey
'"""• ""» ls""«*" ™iad' SCALE , 24 000 * USF &. WS Survey
, S D
VIRGINIA INSTITUTE
,, HOSIER OF MARINE SCIENCE
DATE FLOWN
6-30-89
SALUDA,
VA
116
154
-------
UNITED STATES
DFPARTMFNT O^ THF INTERIOR
GEOLOGIC." SUR\ LY
COMMONWEALTH OF VIRGINIA
HILTON QUADRANGLE
SUBMERGED AQUATIC VEGETATION 1989
Zm
,Rm
Ms
Ppt
Ppc
Zp
N
EC
Va
Tn
U
Zosiera manna (eelgrass)
Ruppia maritime (widgeon grass)
MvrwpfyWumspicoium (Eurasian watermi
ZT7
perfotiatus (redhead grass)
pectinatus (sago pondweed)
ZanmcHfllia palusins (horned pondweed)
Najasspp (n
Elodta canai
aiad)
en5u (common elodea)
VoNisnena amencana (wild celetv)
TYapa fujtaru (water chestnut)
SPECIES
Hv
Hd
toil) Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hvdfdla ver'icttlma (tiydnlla|
tieteranthera dubia (water stargrass)
Poiamugevn rrnpm, (curly pondweed)
ter
Najc
Nail.
Cha
tophyilian demersum (coontad)
mogfionpusiilus (slender pondweed)
u guadatupensis (southern naiad)
aip (musKgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
4 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
vo,o< m.™, (sw,r ™«j, ^^ | ^ ^ -^ USF & WS Survey
1 i 0
VIRGINIA INSTITUTE
IKILO«TER OF MARINE SCIENCE
DATE FLOWN -V
6-30-89 ''-f,
WILTON,
VA
117
155
-------
UNITED STATES
DELTAVILLE QUADHANCLE
' I \ ^' ^ @ '
r V > • -i^-
SUBMERGED AQUATIC VEGETATION 1989
/ V E R
*- C^Ls"1
*flv*sy
$'•" 7 %'iy TMJAJ
*tv i~.~,< 4v-,»v '* ' • >j , ->-xv '
'%T^ AT ' ^ »' f ' j—w£<>V.n
,"• /, J°---^y -"< .? --; p-^v-- -^
Rm.Zm
bjmn
f
N
\
L-«
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
-.--'" Of*-v '
^- ^
" J\ ®x x
'\~~^
L>., ^ R A 1
Rm*
. So. N.CK
SPECIES
Zosiera manna (eelgrass)
Kuppia marnima (widgeon grass)
Myrtophyltum spica
foiamogeion perfo.
Poramogeton pectin
Tanmckelliapaliat
Najas spp (naiad)
Valliinena amenca
Trapa naians (wate
Unknown species
um (Eurasian watermiltoil)
aius (redhead-grass)
atus (sago pondweed)
s (horned pondweed)
common elodea)
na (wild celery)
r cheslnut]
comp.5i,ion
IT/
DA1 •Rm BA3/JTARm ,' / /'
-_-^ T At5.it "N »' s i 1 N D
•C--* XJCA2 inRm /.„ ' ^'
Rm'2m /h&m -' ' ' ""*^
' • ', » 1 1 / s « a ] X.A "* '>-,"' 1
- ,;• ^ ,„„,„_ ^l_iro^~d/. ?io .^ / /* ^ _l
Hv H^/to «,„„««» (hydnlla) SURVEY STATIONS
Hd Heleranititradut/ia (water stargrass)
Pcf ;>«»,,«.„ ™^(curtypond*,ed) • MD Charter Boat Field Survey
Cd c,™^,»™^,^(«>onBi| ' • Citizens Field Observation
3pu Potamogcionpusilliii (slender pondweed)
Ngu ^ajof suodj(upeniU (southern naiad) A VIMS Field Survey
Ngr «^8™«,«, ,„„«« A USGS Survey
C Cftara sp (muskgrassl •
Nm Na/oim.nor (slender naiad) -^ USF & WS Survey
1 5 0 1 MILE
i s o IMLOMETE. 0 F MARI N E SCIENCE
DATE FLOWN
6-30-89
DELTAVILLE,
VA
118
156
-------
UNITED STATES
JAMESVILLE QUADRANGLE
-.L -_—,--.-
ZA2J
SUBMERGED AQUATIC VEGETATION 1989
AA3
Zm
Rm
Ms
Ppl
Ppc
ZP
N
EC
Va
Tn
U
SPECIES
Zasiera manna (eelgrass) Hv
Ruppia marittma (widgeon grass)
Mynophyltum ipicmum (Eurasian wateTmitfoilJ
Potamageton perfoiiatus (red he ad- grass)
Poiamogeton peciinaiux (sago pondweed)
Zannichellia palusiw (horned pondweed)
Najasspp (naiad)
Elodta canadensa (common elodea)
Vallunena americana (wild celery)
Trapa naians (water chestnut)
Unknown species composition
Hydr
la vertKillata (hydnlla)
Hd Heieranthera dubia (water stargrass)
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Poiart
Cera
Poian
wgeton cmptu (curly pondweed)
ophytlumilemcrsum (coontail)
vigftanpustilus (slender pondweed)
Najas guada!upemis (southern naiad)
Najas
Char
Naias
gractllimtt (naiad)
sp (muskgrass)
minor (slender naiad)
1 5 0
1 * "
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
if USF & WS Survey
1MILE
__- „, VIRGINIA INSTITUTE
.KiuoMfTEB OF MARINE SCIENCE
DATES FLOWN
6-12-89
7-24-89
JAMESVILLE,
VA
119
157
-------
SUBMERGED AQUATIC VEGETATION
•F -^ ^^___^V..J1v>— ^
SPECIES
Zm Zossera marina (eelgrass] Hv Hyttnlla veruciliaia (hydnila)
Rrn Kuppw maritima (widgeon grass) Hrj Heteranthera dubia (water stargrass)
T
Pp! Po-tamogeion perfotiatiu (red he ad- grass) CO Cerawphyllumdetnetsum (coontail)
Ppc Potamogeton pectinaius (sago pondwoed) Ppu Potamogeion pusiilus (slenOer pondweed) |
Zp Zannichelliapalusins (horned pondweed)
N Najas spp (naiad)
EC Eladea canadensu (common elodea)
Va Valhinena americana (wild celery)
Tn Trapa naians (water cheslnutl
U Unknowns aes com ostion
Ngu No,* guadatuptKu (southern naiad) I
Ngr Najas graullimn (naiadi
C Cnarasp (muskgrass)
SCALE 1 24 000
' 5 °
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
A USGS Survey
if USF & WS Survey
I MILE
DATE FLOWN
7-1-89
WARE NECK,
VA
122
158
-------
UNITED STATES
MATHEWS QUADRANGLE
\>%A il .!^y^ ' • ^*£jfrr
SUBMERGED AQUATIC VEGETATION 1989
^ 4_-i—-/ ~^-J >y H • /^' • " • ' /
—n~^ ' ^'£ X ' /\ -- • r ^A'
'I I--, i^rAx^-.f M
^,i ' ("~'
>•,_ (' ' '
f^.
J i
1 fiX-Y ' >---, *, ' v
.; .— A^ -,) • " *•
/A~ '" ' ^°* V "*^ ** ' ^
J e •*i==7'v;-: -*^^ .Zm"
^k"
,' "" K*,.\^-.^,.«^§ b<>^ ^V^
, """"f" '\' ''\ A-r^i^T'--^^
^ VW^s^ /^-Lr.a
/J 8
(tr,.*^§ ^^
MA;^ /'V'.A.r,-^ H53ST
AV ' '' V • '^f "" ? —x. ' NO'SAV
/^ : ^-^^> ' - ff^A r^"4
/ -»S / • XI-^M.™ , ^ i 'H"i,Zm\
' •'" " " '
Zm Zosiera marinj (eelgrass)
Rm Ruppia maruima (widgeon grass)
Ms Myriophyllumspicaium (Eurasian walerm
Ppf Poiamogeionperfoltaiui (red ha ad- grass)
PpC Poiatnogeton pectinatus (sago pondweed
Zp Zanmchellia palusiru (horned pondweed
N Najas spp (naiad}
EC Elodea canadensis (com mon elodea}
Va Vatlisnena amencana (Wild celery)
Tn Trapa natans (water chestnut)
U
i scomposi
SPECIES
HV Hydr
Hd Heter
foil) Per Poian
Cd Cera
PpU Polar
Ngu Hajas
lla veructllata (hydnlla)
amhera dubia (water stargrass)
wgeion cnjptis (curly pondweed}
ophyllum dtmersum (COontail)
nogeion pusillus (slender pondweed)
guadaluperuis (southern naiad]
Ngr No;r2j graciliima (naiad)
C Chora sp (muskgrass)
Nm Naytu
minor (slender naiad)
1 5 0 '
S 0
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
oo -A- USF & WS Survey
IMItE
UIDr-IUIB IUCTITIITC
.KILMETE. OF MARINE SCIENCE
DATE FLOWN
6-11-89
MATHEWS,
VA
123
1965
159
-------
UNITED STATES
DFPARTMFNT OF THE INTERIOR
AL SUPv^ T
T '"7- •" '
COMMONWEALTH OF VIRGINIA
JAMES L CALVER, STATE GEOLOGIST
JAMES L CALVER, STATE GEOLOGIST
SUBMERGED AQUATIC VEGETATION
' " V? V v t / / ' '
/ <• \ I '"Il /
I" j. c1 S 1 f'' v7 '; '
• i „<• ! & J rv- A'« „ -We^
FRANKTOWN QUADRANGLE
1989
<*>' '» ^lOOOO.EFT
Rm Ruppia mariuma (widgeon grass)
Ms Mynophyllumspicaium (Eurasian waterm
Ppf Potamogeton perfohanu (redhead-grass)
Ppc Poiamogeton peciinatus (sago pondweed)
N Najaispp (naiad)
EC Eiodea canaderuts (common eiodea)
Va Vattisnena amencana (wild celery)
U Unkn
pe po
•»"*> ^ '<-»?-' "
SPECIES
Hv HydnllavertiaUaia (hydnlla)
Hd Heieramhera dubia (water stargrass)
foil) Per Poiamogeton crupus (curly pondweed)
Cd Ceratophytlum demersutn (coontail)
Ppu Potamogeion pusitlus (Slender pondweed)
Ngr Najas gracitiima (naiad)
C Chora sp (muskgrass)
Nm Najtu minor (slender naiad)
SCALE 1 24 C
5 0
- /KSSStf.'ff » •»
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
A USGS Survey
m * USF & WS Survey
.KILOMETER 01- MARINE SCIENCE
-™ -urwi""
6-12-89 '%
FRANKTOWN,
VA
124
IMS
160
-------
UNITED STATES
COMMONWEALTH OF VIRGINIA
BRANDON QUADRANGLE
^ ^SUBMERGED AQUATIC VEGETATION 1989
~r
Zm
Rm
Ms
Ppt
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
Zostera manna (eelgrass)
Ruppus mannma (widgeon grass)
Myrtaphyllumspicatum (Eurasian watsrmilfoil)
Peiamogtionptrfohatus (redhead-grass)
Poiamogeton pectinaius {sago pondweed)
Zannichelha palustns (horned pondweed)
Najas spp (naiad)
Eladea canadeiua (common elodea)
Vattunen
Trapa nat
Unknown
amt.ncana (wild celery)
is (water chestnut)
Species cornposinon
Hv
Hd
Cd
Ppu
Ngu
C
Nm
Hydnlta veriicillata (hydnlla)
Heieramhera dubia (water stargrass)
Potarnogeton crispus (curly pondweed)
Ceraiophyitumdtmenum (coontad)
Potamogewn pusiliui (slender pondweed)
Najm guadalupensis (southern naiad)
Na}ax gracillima (naiad)
Charasp (muskgrass)
NajiK miner (slender naiad)
i 5 0
i 5 a
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
t USGS Survey
oo It USF & WS Survey
IKIUMTER OF MARINE SCIENCE
DATE FLOWN
7-1-89
BRANDON,
VA
127
161
-------
UNITED STATES
DEPARTMFNT OF THE INTERIOR
i SURVEY
COMMONWEALTH OF VIRGINIA
JAM* . " I " >'ftM
CLAY BANK QUADRANGLE
SUBMERGED AQUATIC VEGETATION 1989
- .
->\ /^'K\J
A^-v^r^
Rm^mV;. """'V1
N\» ' - ^ \-^'"'rN
^ ^% 'Tf^
\%. '-pm.Zm -=5 >.
*o\ J' "*> , ^
t \ !^ 1 • ' - . *
x \ , A\ ]..---' !•
Rm.Zm i «''
f,
, 1 " Ki»
SPECIES
2m Zostero manna (eelgrass)
Rm Ruppia tnaraima (widgeon grass)
Ms Myriophyttumsptcatum (Eurasian water mi If oil)
Pp! Potamogeionperfoliatus (redhead-grass]
Ppc Potamogtivn pectinaius (sago pondweed)
Hp Zannichethapalusins (horned pondweed)
N Najas spp (naiad)
EC Eiodea canadensis (common elodea)
Va VMannna amencana (wild celery)
Tn Trapa itaians (water chestnut)
U Unknown species composition
Hv Hydnllavemcillata (hydnlla)
Hfj Heteranihera dub,a (water Stargrass)
Per Potamagelon crispus (curly pondweed]
Cd Ceratophyaumdemenum (coon(aii)
Ppu Poiamagfion pusiUus (slender pondweed)
Ngu Najas f-uadalupensis (southern naiad)
Ngr Najas gractlhma (naiad)
C Chara sp (muskgrass)
Mm Najas minor (slender natad)
SCALE 1 24 000
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
t USGS Survey
llr USF & WS Survey
VIRGINIA INSTITUTE
OF MARINE SCIENCE
DATE FLOWN
7-1-89
CLAY BANK
VA
130
162
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
COMMONWEALTH OF VIRGINIA
ACHILLES QUADRANGLE
VIRGINIA
RB4
SUBMERGED AQUATIC
VEGETATION 1989 \
^VCyrr.;
j»
r 9'r ' , i
:*f&*^
HB4
, i"f 'WA4 J.
/./*&*••' 1
:;_^^r^^i^.. X"V..
.->^4A1-
-r^-5#H£*
,RA2
^m,Zm
xx' ^ ~~T?/ "'/-:;:^-""-^l"'*^^^<\
Zm"
- JJ,,»
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
va
Tn
U
SPECIES
Zosiera marina (eelgrass)
Ruppia martttma (widgeon grass)
M>rioph>ilum spicoium (Eufasian watetmilloilj
Poiamogetoa perfoluuus (red head -grass)
Potamogeion pecnnatus (sago pond weed)
Zanmchellia palusins (horned pondweed)
Naias spp (naiad)
Elottea canadensa (common elodea)
Vallisnerta amencana (wild celery)
Trapa natans (water chesinutl
Unknown species composition
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hydrilla venictllato (hydnlla)
Heieramheradubia (water stargrasS)
Pvtarrwgeton crupiu (curly pondweed) i
Ceraiophyttumdemenum (coonlailj
Potamogtton pusillus (slender pondweefll
fJajas guodalupensa (southern naiad) 1
N-ajas gracilhma (naiad)
Charasp (muskgrass)
Najas minor (slender naiad)
SCALE 1 24.000
,
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
It USF & WS Survey
VIRGINIA INSTITUTE
DATES FLOWN
6-11-89
7-1-89
ACHILLES,
VA
131
163
-------
UNITED STATEb
*" nrpARTMCNT OF THF INTER'OR
GEOLOGICAL SURVEY
"
NEW POINT COMf'ORT QUADRANGLE
\ HA4
£ SUBMERGED AQUATIC VEGETATION
N^ JC^'l^y k^-'*T*
, - -"iv=.,Vs- ," >-v-*- \°\-* I •<•
1989"
^fw/:^'^^^t ;^' -y-.^-^:^/
;• ^ ,x--^ ':^V^ c" -^ ^
v v ' /' /. ^ ' -4^>> '^.W
»^./' " i ; tx - /^-V—-Vi/-
M/ 9r , .^V-A "^ '??
NA4
"\
\HB4
)CA2
J,
Rm Ruppta mantima (widgeon grass)
Ms MfnophyUumspicatum (Eurasian waterm
Ppf foiamogeionperfoliaiui (red head -grass)
PpC Potamogtton pecnnaius (sago pondweed
N Najasspp (naiad)
EC Elodta canadensa (common elodea)
Va Valluneria sunencana (wild celery)
Tn Trapa naianj (waler ctiaslnut)
U Unkn wn m ilion
SPECIES
Hv Hydrilta verticiilata (hydnlla)
He Heieramhera dutiia (water statgrass)
Mod) Per Poiamogewn crapm (curty pondweed)
Cc Cfratnptiyllum demersum (coonlail)
Ppu Potamogeion pusilius (slender pondweed}
Nor Najas gracilltma (naiad)
C Chora sp (muskgrass]
Nm IVajas minor (slender naiad)
SCALE 1 24,0
s o
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
oo if USF & WS Survey
-KILOMETER QF MARINE SCIENCfc
DATE FLOWN
NEW POINT
COMFORT, VA
132
164
-------
UNITED STATES
DEPARTMENT OF THE 1NTER1UK
GEOLOGICAL SURVEY
CAPE CHARLES QUADRANGLE
VIRGINIA-NORTHAMPTON CO
75 MINUTE SERIES (TOPOGRAPHIC]
SUBMERGED AQUATIC VEGETATION 1989
T
AA4
;:^"frH^t---A?
SPECIES
Zm Zoiiera manna (eelgrass)
Rm Ruppia mantuna (widgeon grass)
Ms Mynophyllum spicaium {Eurasian walermMoil)
Ppt Potamogewnperfohatus (red he ad-grass)
Ppc Poiamogeton peciinarus (sago pond weed}
Zp Zanntcheltiapalustru (horned pondweed)
N Najasspp (naiad)
EC Etodea canadewu (common elodea)
Valltineria amertcana (wild celery)
Trapa natara (water chestnul)
Unknown species composition
Hv Hvdritla verttcttitua (hydnlla)
Hd Heteranthera dubta (water stargrass)
Pcf Pwowo^eton cr«pt« (curly pondweed)
Cd Ceratophyllum demersum (coontail)
PpU Pommogetonpiuiliiu (slender pondweed)
Ngu Najas guadalupensts (southern naiad}
Ngr Najas graallana (naiad)
C Chara^p (muskgrass)
Nrn Najas mtnar (slender naiad)
SCALE 1 24 000
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
if USF & WS Survey
VIRGINIA INSTITUTE
OF MARINE SCIENCE
DATE FLOWN v
6-12-89 '~\
CAPE CHARLES,
VA
133
165
-------
UNITED 'it AIES
DEPARTMENT OF THE IN
GEOLOGICAL SURVtY
T0"- SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
Auurama
Ruppia ma
Mynopkyl
PotaiaoiK
PoUMOgC,
Zannichell
nna (eelg
absi
iitma (widgeon gr
am spicaiu
n pfrfolia
?n pecnna
apaluaru
m (Euras
ISS)
an water milfoil)
us (redhead-grass]
us (sago pondweed)
(horned
Najas spp (naiad)
Elodea canadensis (common 6
Vathsnena
pondweed)
odea]
amtricana (wild celery)
Frapa naiara (water
Unknown
species c
chestnut
om posit
on
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
H\dnlla vert
He
Po
Ce
Pn
eranthera
angtion
umphyHu.
am,>Xfton
allata
tlubta
cn^
•ndemt
pusittiu
Najas guadalupensis
Najat graalluM (m
( hara sp (muskgra
hydnlla]
wa
(cu
(s
er slargrass)
fly pondweed)
(coontail)
ender pondweed)
(southern naiad)
ad
si.)
SURVEY STATIONS
• MD Charter Boat Field Survey
'
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
Itw ™«' (slsndef naiad) ^^ ^^^ if USF & WS Survey
„ -
VIRGINIA INSTITUTF
.KILOMETER OF MARINE SCIENCE
DATE FLOWN
6-12-89
CHERITON,
VA
134
166
-------
OPKTnWN QUADRANGLE
, , i ,i , i
V •> sn-! ^^r.""V-
SUBMERGED AQUATIC
^/^^^:^f^
M/XT'~ ^-'- c - Vf-H-rIS/
2m
Rm
Ms
Ppl
Ppc
Zestera
Rappia
SPECIES
manna (eelgrassi Hv
mantima (widgeon grass) Hd
Mynophyitum spicoium (Eurasian water rrultoill
Poiamc
Polamc
geioaperfoiiasui (red he ad- grass)
geion pecrinaius (sago pondweed)
Zp Zanmchellia palustris (horned pondweed)
N
EC
Va
Tn
U
Najas s
Elodea
Valltjn
Trapa
pp (naiad)
canadensa (common elodea)
eria amertcana (wild celeiy)
wians (water chestnutl
compo
Per
Cd
Ppu
Ngu
Ngr
C
Nm
Hvdn/tew«c.Ha«0(hydnlla) SURVEY STATIONS
HeieramHeradubta (water stargrass]
Po(om<3geion cnspui (curly pondweed]
Ceratophyllum demersum (coontail]
Potamogeion pusillus (slender pondweed)
Najos guadalupeiuis (southern naiad)
• MD Charter Boat Field Survey
£ Citizens Field Observation
A VIMS Field Survey
«w«,,™,™ad, AUSGSSurvey
Chora ip (muskgrass) T
"°'"™'(5M"ra'!"1> SCALE, 24000 * USF 8, WS Survey
ISO 1 MILE
VIRRINIA IWSTITIITC
> « t«io»ETE« OF MARINE SCIENCE
DATE FLOWN \
7-1-89 •£»,
YORKTOWN, *'\
VA
139
167
-------
UNITED STArs-i,
DEPARTMENT OF THE IN~
GEOLOGICAL SURVE
COMMONWEALTH 0^ VIRGINIA
DIVISION OF MINERAL Wl.SOURCES
SUBMERGED AQUATIC VEGETATION 1989
"i::
~-r o K K — -
*^ /7^'X>$^
• ^Di^V^^'fAA*
^^M^^'
«%
-^^stf^'. • 'IV ^^^^^i^-^V^'Si ;
• • -:. >>X;^-^r^ H- y, ;/ Ij5;^
&D : ^2;^ff:--
^r;:::;^^-'-,/i;
|^' x /.> • f'"~"
• -JkjSVVj * (-.'
/ f%_ u Xl jfB, I
_ j.. ij....;. 4%:^?.- „• «EJ.. o,»
SPECIES
Zm
Rm
Ms
Ppl
Ppc
ZP
N
EC
Va
Tn
U
ZoiKramonraleolgrassI
Ruppia mariuma (widgeon grassl
Mynophytlwniplcatum (Eurasian watermilloil)
Pvtamoftnon perfatt/aiu (redhead qras^)
Poiamogeion pemruilus (sago pondweed)
ZamcMlupalatru (horned pondweedl
Najasspp (naiao)
Vaihsnerta amer\cana (wild celery)
Trapa namns (water Cheblntit)
Unknown species composition
Hv Hvdnllaveruriltaia (hydnlla)
Hd Heterumhera dubia (water staigrass)
Per Potamt>%eion irispus (curly pondwefd)
Cd C,raW*,«»,A™,,s™(coon«l
Ppu PotamogeMR pusillus (slender pondweed)
Ngu Najas guadaluptnw (southern na.ari|
Ngr ^ayus xratillimi (laind1
SURVEY STATIONS
• MD Charter Boat Fi
3ld Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
Nrn /vajflimi™r (slender naiac<) , 2^ o "^ USF & WS SurveV
1 5 0
iwiir
4STITU1
SCIENCE
5%- f ij-v
F(___j_ i|. ... A?;
OATE FLOWN \,
7-1-89 ;
7-1-89
POQUOSON
WEST, VA
140
168
-------
UNITED STATES
tPARTMENT OF THE 1NTER1O!
GEOLOGICAL SURVEY
COMMONWEALTH OF VIRGIN!*
POQUOSON EAST QUADRANGLE
VIRGINIA
75 MINUTE SERIES (TOPUOHAPHIC)
SUBMERGED AQUATIC VEGETATION 1989
B A,: Y
C H • E S A P E A K B
Zm
Rm
Ms
Ppf
PpC
Zp
N
EC
Va
Tn
U
Zoncra manna (ae
Ruppia martuma (v
Myriophyllum spic
SPECIES
Igrass)
vidgeon grass)
•MM (Eurasian watermilfoil)
Poiamogeivn perfoliatus (red head -grass)
Poiamogeion pecnaaiia (sago pondweed)
Zanmctettu, pains
Najas spp (naiad
Elodea canadensis
ns (horned pondweed)
(common elodea)
Vallisneria americana (wild celery)
Trapa naians [water chestnut)
Unknown species composition
Hv
Hd
Per
Cd
Ppu
"-Jgu
Ngr
C
Mm
HydriUa veniallata (nydnlla)
Heieramhera duhia (water stargrass)
Paiamogeion Lrupus {curly pondweed)
Ceratophyllum demersutn (COOntail)
Poiamt>Ke\on pusittus (slender pondweed)
Najas guadatupe'ut5 (southern naiad)
Najai gracttltma (naiad)
Charasp (muskgrass)
v^.muwr (slender naiad) SCALE 1 24,0
s o
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
if USF & WS Survey
1 MILE
IK.OMEISR OF MARINE SCIENCE
DATE FLOWN
7-1-89
POQUOSON
EAST, VA
141
169
-------
UNITED ,
DEPARTMENT OF THE 1
CtOLOGICAi
SUBMERGED AQUATIC VEGETATION 1989
.0
Zm
Ms
Ppl
Ppc
2p
N
Tr,
•01 TO
z"""""~""" """•""''
MyrKWWtawo... (Eurasian wawrm
f«m,,«».,,,/ilio«u(rB ™ ' ^ '"' « ^ ,-; ™ ™
SPECIES
HV H^,i,a.™,te»,,ly(i,,u,, SURVEY STATIONS
in, per (Win*™" mw» (curi» ponowecn; ! • MD Charter Boat Field Survey
Co t,™vw;™ A™™,,, coon,* . ^ Citizens Field Observation
PpU I'ulanu'Xflan plalllai (slender pondwoej)
Nqu vujji j;mida/Hp«iuii (souine i n.iia,-)' A VIMS Field Survey
Ngr \ajal,r«,«,«,,....,,i- ^ USGS Survey
""'"" '"'"""" ""
v^oi™™- 3Cr,L«i ^.^ , SCALL .24000 * Urvyy
^^ - n VIRGINIA INSTITUTE
' » IHLOUEIEK OF MARINE SCIENCE
•"""•" •;.
6-12-89
ELLIOTTS
CREEK, VA
142
i«t»
_1
170
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
COMMONWEALTH OF VIRGINIA
DIVISION OF MINERAL RESOURCES
TOWNSEND QUADRANGLE
VIRGINIA-NORTHAMPTON CO
75 MINUTE SERIES (TOPOGRAPHIC)
- ~~^r~-ft,^\y -~ •_"'„ rT,ir~" "v ^ ~^l '
. V:>;-rf^&^V.$
•S^^tfetev-l
SUBMERGED AQUATIC VEGETATION 1989
\--t~fy,i-~j>r>.- «-P - .
-------
AQuATIC VEGETATION 1989
SURVEY STATIONS
• MD Charter Boat Field Survey
Citizens Field Obse* ^at i,r
A VIMS Field ourviv
USGb iurvo,
* UbF S WS ourvv
HAMPTON.
VA
147
17'-
-------
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
COMMONWEALTH OF VIRGINIA
DIVISION OF MINERAL RESOURCES
CAPE HENRY QUADRANGLE
T -„
SUBMERGED AQUATIC VEGETATION 1989
C H E S A P E- J-
'8iP9'i&?& -:'r$!*?m%
r/^ sw; w.3p^ip^^v^
i-X-C' ' • ;^|^ .* ; m?$££ yjfr* ^'^X3 «.
_ ~}^> ^"1 "- *fe "»/,e\\-i »• ' ,-'': !'--^»-&*.iiV-'- ^C> *Rm.7n
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
Zvsiera manna (eelgrass) Hv
Ruppia maniima (widgeon grass) Hd
Myiophyllum spicaium (Eurasian waiermiltoil) Per
Potamogeio n perfoiiaim (redhead-g rass)
Potamogewn peainatus (sago pondweed)
Zannichelliapalusiris (horned pondweed)
Najas spp (naiad)
Valluneria omencana (wild celery)
Trapa naians (water chestnut]
Unknown species composition
Cd
Ppu
Ngu
Ngr
C
Nm
Hydnlla verucillata (hydnlla)
Heteranthera dubia (water stargrass)
PvtamoReion cnspiu (curty pondweed)
CeratophyUumdemersum (COOntaili
Poiamagetanpustllus (slender pondweed)
Najas guadalupensis (southern naiad)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
Najas gracillima (naiad) A
A USGS Survey
Cha/-asp (muskgrass) T
Naias minor (slender naiad) ^ ^ •£• [JSF & WS Survey
^ . VIRRIMPA IWQTITIITC
iKiioMETEn OF MARINE SCIENCE
DATE FLOWN
6-12-89
CAPE HENRY,
VA
152
173
-------
ISTOL QUADRANGLE
SUBMERGED AQUATIC VEGETATION 1989
Zm
Rm
Ms
Ppf
Ppc
Zp
N
EC
Va
Tn
U
SPECIES
Zosiera manna (eelgrass) Hv
Kuppia moriuma (w
Myriophyllum spica
Potamog eton perfoli
Potamogelan pectinc.
Zanruchellia palustr
Nasas spp (naiad)
Elodea canadensis (
Valhsnenaamenca
Trapa naians (wate
Unknown speaes
dgeon grass)
um (Eurasian watermilfoil)
•aus (redhead-grass]
Hit (sago pondweed}
s (horned pondweed}
ommon elodea)
ia (wild celery)
chestnut)
composition
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
Hfdr
Hete
Polar
U,«n,c,«0«|llydnlla| SURVEY STATIONS
amhtra dubia (water star grass)
aageion criipus (curly pondweed)
Crratophyllumdemersum (coontail)
Polar
Nayu
aogeioapusillus (slender pondweed)
guadaiupensis (southern naiad)
• MD Charter Boat Field Survey
t Citizens Field Observation
A VIMS Field Survey
Najas graallima (naiad) * ,0^0 r«
m USGS Survey
Chora sp (muskgrass) T
Najai
minor (slender na.ad) ^^ - 24 00 ^ USF & WS SurV6y
ISO 1 MILE
s o , KILOMETER QF MARI N E SCIENCE
DATE FLOWN
9-3-89
BRISTOL,
MD
159
174
-------
PORT TOBACCO QUADRANGLE
MARYLAND
^"-"''L^tc^--"-r""'r"" "<&&>"'} - ' i1-
SUBMERGED AQUATIC VEGETATION 1989
"L^ ^T "^lr^/^ '^
•: I y
r-'^ >* -^©A
f-°t--"»^ 'fKt>-
_cv j- 4. -,--*•-"- -"M -
K ils ^-" rofl -., TCOw frF ,u
Zm Zo^era manna (eelgrass)
Rm «u/>pw mai-iiima (widgeon grass)
Ms Myrwphyiium jpitaiu/n (Eurasian walet mi
Ppf Posamogeion perfnliatus (redhead-grass)
PpC Pofmogeton peciinattu (sago pondweed)
Zp Zanntchellia palusiris (horned pondweed)
N Najas spp (naiad)
EC Ehdea canadensu (common elodea)
Va Valltsneria amencana (wild celery)
Tn Trapa natans (water Chestnut)
11
n nown species composi ion
> -\ t \ '
c4 VH
JVt^r^
SPECIES
Hv
HrJ
oit) Per
CrJ
Ppu
Ngu
Ngr
C
Nm
X \i{ f •-'/< ' ''•'• ^ ^f^
' -'•! -^ y&^u ,* -Kf~^'t/-^~
"^'^ -*«~i- >•
Hydnlla vtrncillara (hydnlia)
o «i§SSIfelili:&,,n
SURVEY STATIONS
Hfieranihfra dubia (water stargrass)
p.™08™, cnvu (cuti, pomtmxi) ; • MD Charter Boat Field Survey
deralop hyllum demenum (COOntail)
Potamoxetonpiuilliu (slender pondweed)
Naita tvuUwauit (southern naiadl
Najiu granUima (naiadl
Charasp (muskgrass)
0 Citizens Field Observation
A VIMS Field Survey
A USGS Survey
KW™«,,(S].nd.rn»aa) SCALE, 24000 -*T USF S WS Survey
1 5 0
5 0
1 MILE
VIRGINIA INSTITUTE
•»LO»ETE» OF MARINE SCIENCE
DATES FLOWN
1 0-5-89 Upper Potomac R
8-31 -89 Port Tobacco Cr
PORT
TOBACCO, MD
1R1
i \J 1
DMIMYMCIH1- ADO«D IS82
175
-------
SUBMERGED AQUATIC VEGETATION
SPECIES
Zm Zosura manna (eelgrass)
Rm Ruppia maritima (widgeon grass)
Ms Mynopkyllum sptcatum (Eurasian watermiltoil)
Ppt Pouonogtionperfoltarui (redhead-grass)
PpC Poiamogtio* peainaiiu (sago pondweed)
Zp Zaniuchelliapalusiris (hom«d pondweed]
N Najasspp (naiad)
fcc Elodea canadcnsu (common elodea)
Va Vallaaena amencana (wikl celery)
Tn Trapa naiara (water chestnut)
U Unknown species composition
Hv Hvdnlta veniatlaia (hydnlla)
Hd Heteranihera dubta (water stargrass)
Per Potawgtion crupus (cuny pondwaed)
CO CtranpMium dtmirsum (COODtail)
Ppu Poiamogeion piuiliiu (slender pondweed)
Ngu Hajos guadalupensis (southern naiad)
Ngr Nam gracittima (naiad)
C Charasp (muskgrass)
Nm NQ/OJ minor (slender naiad)
SCALE 1 24
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
if USF & WS Survey
1 MILE
. KIU»TSR OF MARINE SCIENCE
'» -
DATE FLOWN
6-12-89
BERLIN,
MD
167
."T,;°"'.rs;-_
176
-------
UNITED STATES
DEPARTMENT OF ^HE INTERIOR
GEOLOGICAL SURVEY
T
1 S L K OF H ,
•" !3j.Ct.TI"" ' ' "°
SUBMERGED AQUATIC VEGETATION 1989
•» ^r
v
,L
Zm
Rm
Ms
Ppt
Ppc
Zp
N
EC
Va
Tn
U
Zo»«™™r
SPECIES
na (eelgrass)
Ruppia maritime (widgeon grass)
MynophyLliim spicaium (Eurasian walermilloil)
'ZZ
Zanruchellia
perfoliaiiu (redhead-grass)
peciinaius (sago pondweed)
fialuiirn (horned pondweed)
MJJOJ spp (naiad)
Elodea canadensis {common elodea)
Vallunena americana (wild celery)
Trapa natans (water chestnut)
Unknown species composition
Hv
Hd
Per
Ppu
Ngu
Ngr
C
Mm
Hydnlta vtmcillala (hydnlla)
Heieranihera daiiia (water stargrass)
Poiamogeion ctispus (curly pondweed)
Cl'aloptrfllum dfmersion (coontall)
PtiiamagtHinpusLlliv (slender pondweed)
Najas guadalupenits (southern naiad)
Najas graallima (naiad)
Cliaratp (muskgrass)
Najai minor (slender naiad)
S 0
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
00 ~k USF & WS Survey
V'R«INIfl INSTITIITF
. «toMEis« OF MARINE SCIENCE
_L,
DATE FLOWN
6-12-89
OCEAN CITY,
MD
168
177
-------
UNITED STATES
TINGLES ISLAND QUADRANGLE
SUBMERGED AQUATIC VEGETATION 1989
SPECIES
Zm
Rm
MS
Ppt
Ppc
zp
N
EC
Va
In
u
2j>stera manna (eelgrass)
Ruppia manlima (widgeon grass)
Myriophyllumspicatam (Eurasian watermilfoil)
Potamagfion perfoliatuz (redhead-grass)
Potomogeton pecitnatus (sago pondweeo)
Tanmchilhapalusirif (horned pondweed)
Nafas spfr (naiad)
Ehdta cartadtnsis (common eiodea)
Valtisneria amencana (wild celery)
Traps nalans (waler cheslhut)
Unknown soe i omoosilion
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Mm
HytriUivtniiMaiulriyd
Heleranltiera dubia (wat
nlla)
arstargrass)
Palamagtlon crispus (curly pondweed)
CtraopkyUvndtmtnw
Polamogeton piaillus (si
(coontad)
ander pond weed)
Naja.. guadalupensis (southern naiad)
Najn, gractHirrui (naiad
Charasp (muskgrass)
/Va/a, minor (slender na
i
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
f USGS Survey
adl «M£,»m *USF&WS Survey
5 0
1 i 0
IMILE
uinniun IUSTITIITC
inuHnn OF MARINE SCIENCE
DATE FLOWN
6-12-89
TINGLES ISLAND,
MD
170
178
-------
SUBMERGED AQUATIC VEGETATION 1989
^Lv "^ -> , . 1 *
^-"wsask^p^ ,^
;X .tf, •/
it * * .Hf^B B E e-f /
> :u-v^ *;./
^A4 < ^' ', ///
' - --, /
x^BA3 x-f- -""«1A"""
Rm«4 L,, „„, ^[..j
.naed !M^r \ Mo" Point\
SPECIES
Zm
Rm
Ms
Ppf
Ppc
zp
N
EC
Va
Tn
U
Zoawo mmm (eelarass)
Ruppw maruima (widgeon grass]
M,™pWta g»cai« (Eurasian wale.milloil)
F««»joOTp,*/«»,(,ednea*9rass)
Poiamiigeinnpectiruitux (sago pondweed)
7aHtucluitiapatuarn (horned pondweed)
Wo/cit ipp (naiad)
Fioiieo canadfnsis (common elodea)
Val/isneria amfrnana (wild cetery)
7r,lpfi naiaaf (water chestnut)
nown spec.es composi .on
Hv
HrJ
Per
Cd
Ppu
Ngu
Ngr
C
Nm
HydntUl v
//eiei-anift
fo tamoge
t.rawk,
Patamoge
niitllaia (hydnlla)
ra dabia (water stargrass)
on crupus (cuny pondweed)
^^™(coon.a,l)
onpusitlus (slender pondweed)
Na/as guadaluptiuu (southern naiad)
Najas gm
Cham sp
tlluna (naiad)
(muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
4 USGS Survey
Najasmw (slender naiad) -J^ [JSF & WS Survey
SCALE 1 24000 ** 7
1 5 0
1 S 0
t MILE
UIDRIMIH IW-STITIITF
, KILO.*™ OF MAWNE SCIENCE
DATE FLOWN
6-12-89
BOXIRON,
MD-VA
172 v<
179
-------
V
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
SUBMERGED AQUATIC VEGETATION^
WHITTINGTON POINT QUADRANGLE
MARYLAND-VIRGINIA
75 MINUTE SERIES (TOPOGRAPHIC)
1989
\
1
SPECIES
Zm
Rm
Ms
Ppf
Ppc
ZP
N
EC
Va
Tn
U
Zoxtram,
Ruppiamai
Mynaphyl
Polarnagel
Polamngel
™ (Mg
itima (wt
U.WIOI
n perfolic,
ynpeclina
ZonncbUuipiliuiri
Najasspp (naiad)
Elodea canadensis (c
Vallisniria
Trapa nal
Unknown
awnow
fti (wate
rass)
geon grass)
an (Eurasian watermilloil]
ins (redhead- grass)
iii (sago pondweed)
(horned pondweed)
ommon elodea)
a (wild celery)
chestnut]
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
//ydn/tovenici/biuthydnlla)
Heter
Pom*
Ceral
Pomm
Najas
Chare
,VQ,//um dtmetsum (coontail)
ogeion pustllus (Slender ponOweed)
guadalupe/tsis (southern naiad)
gracilhata (naiad)
sp (muskgrass)
SURVEY STATIONS
• MD Charter Boat Field Survey
0 Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
"""' |8le"d" "**» SC.UE , 24 ooo * USF & WS Survey
1 5 0
1 S 0
1 MILE
,«LO»E™ OP MARINE SCIENCE
DATE FLOWN
6-12-89
WHITTINGTON
POINT, MD-VA
173
180
-------
SUBMERGED AQUATIC VEGETATION
SPECIES
Zm
Rm
Ms
Ppl
Ppc
Zp
N
EC
Va
Tn
U
Kupffia ma
MynupV
Poa^gu
Zannichell
rtna (eelgrass)
iiutia (widgeon grass)
umipicaiufi (Eurasian watermilloil)
.nperfol
apalusl
aiiis(redhead-grass)
01 us (sago ponOweed)
j (horned pondweed)
Najas spp (naiad)
Flodea canadensis (common elodea)
Valhsnena
Traps na'c
Unknown
m (wate
species
na (wild celery)
r chestnut)
Hv
Hd
Per
Cd
Ppu
Ngu
Ngr
C
Nm
H\drilta virttitllala (hydnlla)
Heteranthera Jubia (water stargrass)
ftiiamogtion t 'nput (curly pondweed)
p'zcrr^rr".
coontail)
nder pondweed)
Vaja, nudi/wKuu (southern naiad)
New «„„//,» |na,aO)
\iiju* miw [slender na
ad)
SCALE 1 24 0
' — *— ' • 1 >- -J- ' ^
s o
SURVEY STATIONS
• MD Charter Boat Field Survey
• Citizens Field Observation
A VIMS Field Survey
^ USGS Survey
•k USF S WS Survey
Ulpr-.IWIA INSTITIITF
IKILOWKR OF MARINE SCIENCE
DATE FLOWN
6-12-89
CHINCOTEAGUE
EAST, VA
175
181
-------
APPENDIX D
1989 SAV Bed Areas And Density Totals For Each Topographic
Quadrangle.
182
-------
APPENDIX D
Number Of Square Meters Of SAV For Individual Beds And Totals For
Density Categories By Topographic Quadrangle. (See Maps In Appendix C
For Location Of Each Bed. Quadrangles Are Listed Numerically By VIMS
Chart Number. Slight Differences In Quad Totals From Table 4 Are Due
To Rounding.)
ABERDEEN MD.
VIMS CHART # 002
AA3 2834
BA2 3769
TOTAL AREA
DENSITY 1 = 0
DENSITY 2 = 3769
DENSITY 3 = 2834
DENSITY 4 = 0
TOTAL = 6603
HAVRE DE GRACE MD.
VIMS CHART # 003
AA1
BA1
CA1
DAI
EA1
FA1
GA2
HA1
IA2
JA2
KA2
LA2
MA2
NA2
OA2
PA2
16380000
75140
16840
6120
583000
46910
12630
230200
99260
39590
32940
2753
10770
6982
3361
3221
QA2
RA2
SA3
TA2
UA2
VA2
WA2
XA3
YA3
ZA2
AB3
BBS
CB3
DB3
EB3
FB3
GB2
HB3
IBS
JB2
KB2
LB2
MB2
NB2
OB3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
822
3111
22530
10270
7775
3622
91290
14650
2550
2343
144000
2645
1139
904
20650
2011
34810
14480
138700
26410
249700
6374
1046
3135
4610
17338207
652215
368869
0
18359236
183
-------
NORTH EAST MD.
VIMS CHART #004
AA1
BA1
CA1
DAI
EA2
FA2
GA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
ELKTON MD.-DEL.
VIMS CHART # 005
AA2
BA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
SPESUTIE MD.
VIMS CHART # 009
AA2
BA2
CA2
DAI
241300
49040
46440
72010
123000
171500
351800
408790
646300
0
0
1055090
5932
51070
0
57002
0
0
57002
EA1 659800
FA2 1736
GA2 4273
HA1 167600
TOTAL AREA
DENSITY 1 = 1082000
DENSITY 2 = 796574
DENSITY 3= 0
DENSITY 4= 0
TOTAL = 1878574
EARLEVILLE MD.
VIMS CHART #010
AA2 13740
BA2 101100
CA2 50940
DA2 16630
EA1 64370
FA2 53980
GA1 68830
HA2 100900
IA1 43610
JA1 318900
KA1 21020
LA2 25390
MAI 87710
NA4 11550
TOTAL AREA
747900
3285
39380
254600
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
604440
362680
0
11550
978670
184
-------
MIDDLE RIVER MD.
VIMS CHART # 013
AA1
BA1
CA2
DA2
EA1
TOTAL AREA
5460
14480
2666
1498
12020
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TfYTAT.
3817
113916
209654
18163
345550
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
31960
4164
0
0
36124
GUNPOWDER NECK MD.
VIMS CHART # 014
AA2
BA3
CA2
DA4
EA3
FAS
GA3
HA4
IA2
JA3
KA3
LAS
MAS
NA3
OA3
PA2
QA2
RA2
SA3
TA1
29370
3370
8611
12420
10290
3062
62400
5743
36970
7014
36760
24000
33370
11990
2468
5325
21510
12130
14930
3817
HANESVILLE MD.
VIMS CHART # 015
AA2
BA3
CA2
DAI
TOTAL AREA
11150
23750
36320
55390
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
BETTERTONMD.
VIMS CHART # 016
AA2
BA2
TOTAL AREA
55390
47470
23750
0
126610
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
1639
9221
0
10860
0
0
10860
185
-------
GALENA MD.
VIMS CHART #017
AA3
BA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
SWAN POINT MD.
VIMS CHART # 020
AA2
BA3
CA2
DA4
TOTAL AREA
26430
1459
0
1459
26430
0
27889
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
15030
31660
3348
2373
0
18378
31660
2373
52411
ROCK HALL MD.
VIMS CHART # 021
AA2 53650
BA3 37960
CAS 11260
DA4 43670
EA4 1542
FA4 12880
GA2 5522
HA2 25100
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
0
84272
49220
58092
191584
LANGFORD CREEK MD.
VIMS CHART # 026
AA3
BA3
CA2
DA4
EA3
FAS
GAS
HAS
IA2
JA3
KA4
LA4
MAS
NA1
OA1
PA2
QA1
18030
55090
7769
8177
1396
8758
16910
2251
15210
141700
11930
9780
118800
73160
21920
5356
155200
186
-------
RA2
SA1
TA4
UA3
VA3
WAI
XA2
YA3
ZA2
AB2
BB1
CB2
DB2
TOTAL AREA
18280
52910
52730
4363
4023
274800
20740
123500
5858
14490
39480
88690
17750
VA2
WA2
XA2
YA2
ZA1
AB4
BB1
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
52970
155400
10200
589900
39760
55890
166500
351610
2269850
567596
81510
TOTAL
3270566
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
KENT ISLAND MD.
VIMS CHART # 032
AA3
BA1
CAS
DAI
EA4
FA2
GAS
HAS
IA2
JA3
KA3
LAS
MAS
NA2
OA2
PA2
QA3
RA2
SA3
TA2
UA2
617470
194143
494821
82617
1389051
176300
116000
6815
29350
25620
406000
2447
2762
20070
11250
4737
9274
3411
98930
56580
167500
241200
154500
109400
456600
101200
QUEENSTOWNMD
VIMS CHART # 033
AA2
BA2
CA1
DA2
EA4
FA2
GA4
HA2
IA2
JA2
KA2
LA2
MAS
NA3
OA3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
46770
20850
50300
67020
238200
45190
54470
571200
56020
35750
18360
10080
15820
40380
12840
50300
871240
69040
292670
TOTAL = 1283250
187
-------
ALEXANDRIA VA.-D.C.-MD.
VIMS CHART # 034
AA2
BA4
CA2
DA4
EA4
FAS
GA4
HA2
IA4
JA1
KA4
LA4
MA2
NA3
OA2
PA2
QA2
RA4
SA2
TA4
UA1
VA4
WA4
XA4
YA4
ZA4
AB4
BB4
CB4
DB2
EB4
FB3
GB4
HB2
TOTAL AREA
CLAIBORNE MD.
VIMS CHART # 036
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
37690
6155
7750
13340
14040
4738
314900
551600
130200
199300
173200
3810
3687
9069
5635
46800
53000
38630
3079
7512
12190
23100
32650
3289
34550
4920
911500
5276
12070
288700
402800
3860
181700
143600
211490
1141541
17667
2313642
ifisiAiAn
AA2
BA2
CAS
DA2
EA3
FA4
GA2
HAS
IA4
JA3
KA3
LA4
MA4
NA3
OA3
PA4
QA4
RA4
SA4
TA4
UA4
VA4
WAS
XA3
YA3
ZA3
AB1
BBS
CBS
DB2
EB1
FB2
GB4
HB4
IB2
JB3
KB3
LB4
MB4
NB4
OB3
PB4
QB3
73550
97560
305900
34630
29520
40970
7159
21410
5744
24040
23960
4871
3977
12650
33980
5116
4017
57340
46310
7150
4108
246600
14030
2049
30290
35020
7438
45620
112800
105900
537100
122300
101700
79750
16970
32220
17890
3127
1433
3000
4924
21880
14510
188
-------
RB3
SB3
TB2
UB2
VB3
WB3
XB4
YB2
ZB2
AC2
BC2
CC1
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
ST. MICHAELS MD.
VIMS CHART # 037
AA4
BA4
CA4
DA4
EA2
FA2
GA2
HA2
IA2
JA3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
14780
7658
9008
390800
10520
20190
140200
233700
276200
49600
54870
208700
753238
1472247
813961
777293
3816739
EASTON MD.
VIMS CHART # 038
TOTAL AREA
4760
63370
4753
5479
379900
312600
258300
650300
32860
12160
0
1633960
12160
78362
1724482
DENSITY 1 = 0
DENSITY 2= 0
DENSITY 3= 0
DENSITY 4= 0
TOTAL = 0
FORT BELVOIR VA.-MD.
VIMS CHART # 039
AA2
BA4
CA4
DAS
EA3
FA1
GA1
HA2
IA4
JA3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
8053
66140
50430
32230
16840
3750
280800
40650
54260
81660
284550
48703
130730
170830
634813
MT. VERNON VA.-MD.
VIMS CHART # 040
AA3
BA4
CA2
DAS
EA4
FA4
GAS
225600
1385000
50430
96330
4984
18050
60320
189
-------
HA4
IA2
JA4
KA4
LA2
MA3
NA2
OA2
PA4
QA4
RA2
SA4
TA2
UA2
VA4
WA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
TILGHMAN MD.
VIMS CHART # 043
AA2
BA2
CA2
DA2
EA2
FA2
GA2
HA2
IA2
JA2
KA2
LA2
MAS
NA2
OA1
PAS
29970
56910
41900
40310
37960
72580
107100
3323
33500
261100
246900
157000
201200
152500
36140
27390
QA3
RA2
SA3
TA3
UA3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
rwcT^Dn T\TT\
598600
277400
25790
29150
54770
175200
1136147
999610
0
2310957
0
883713
454830
2007954
3346497
96370
13960
84450
53120
18030
74550
12700
7207
13020
79120
33330
47190
146400
325700
175200
144900
VIMS CHART # 044
AA3 203600
BA2 39110
CA2 59100
DA2 169800
EA2 66570
FA2 85370
GA3 112900
HA2 62840
IA2 55770
JA3 48930
KA2 55400
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
0
593960
365430
0
959390
QUANTICOVA.-MD.
VIMS CHART # 047
AA4
BA2
CA4
DA2
EA4
FA2
271500
11220
49190
14420
2817
102700
190
-------
GA1
HA4
IA2
JA4
KA4
LA2
MA4
NA4
OA2
PA4
QA1
RA2
SA4
TA4
WA4
XA1
YA4
ZA2
AB4
BB2
UA4
VA1
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
11610
623000
49120
836500
73860
16390
12380
95800
49300
57380
190500
79090
37230
103500
1631000
445300
76740
98760
186400
79280
119700
6923
654333
500280
0
4176997
5331610
INDIAN HEAD MD.-VA.
VIMS CHART # 048
AA2
BA4
CA1
DA4
EA4
FA1
GA3
HA4
IA4
JA4
116800
375900
320800
35870
33450
24180
64120
19740
12120
21370
KA4 8083
LA3 19120
MAS 87900
NA4 262000
OA1 123600
PA4 90130
QA3 44070
RA4 78050
SA2 24410
TA4 78510
TOTAL AREA
DENSITY 1 = 468580
DENSITY 2= 141210
DENSITY 3 = 215210
DENSITY 4= 1015223
TOTAL = 1840223
HUDSON MD.
VIMS CHART # 051
AA3
BA4
CAS
DAS
EA3
FAS
GAS
HAS
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
4073
13830
28860
17290
41190
2588000
388000
232600
0
0
3300013
13830
3313843
191
-------
CHURCH CREEK MD.
VIMS CHART # 052
AA3 5943
BA3 1674
CA2 16490
DA3 5879
EA4 144300
FA3 15630
TOTAL AREA
TOTAL AREA
DENSITY 1 = 495500
DENSITY 2= 247310
DENSITY 3 = 172700
DENSITY 4 = 3750420
TOTAL = 4665930
NANJEMOYMD.
VIMS CHART # 056
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
WIDEWATERVA.-MD.
VIMS CHART # 055
AA1
BA2
CA4
DAI
EA2
FA4
GA1
0
16490
29126
144300
189916
119600
17420
46340
162400
91020
85390
69370
HA4 2370000
IA3
JA4
KA4
LAI
MA4
NA1
OA4
PA1
QA2
RA2
172700
43890
164700
15340
397500
30320
642600
98470
36470
102400
AA4
BA3
CA4
DA4
EA4
FA1
GA4
HA4
IA4
JA2
KA3
LA2
NA4
OA2
PA4
RA4
SA4
TA2
MA4
QA4
UA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
319800
79240
26340
12800
28750
2868
37690
30310
517900
40740
53480
60940
2279
35370
7927
39190
22590
23680
51170
48110
54880
2868
160730
132720
1199736
TOTAL
1496054
192
-------
MATHIAS POINT MD.-VA.
VIMS CHART # 057
AA1
BA4
CA2
DA3
EA4
FA2
GA4
HA2
IA3
JA4
KA4
LAI
MA4
NA4
OA2
PA4
QA3
RA4
SA2
TA4
UA4
VA2
WAI
XA4
YA4
ZA4
AB4
BBS
CB4
DB2
EB4
FB3
GB2
HB4
IB2
JB4
KB2
LB4
MB4
NB1
OB4
38530
325000
32010
53820
29570
1406
12590
10300
3965
9787
22610
19920
45830
2297
23160
29170
73980
61290
16710
20420
73940
19300
7433
6517
2620
1663
2594
10820
3167
5575
13970
57200
103800
918800
152100
106200
10390
151100
55270
12290
148800
PB4
QB2
RB4
SB1
TB4
UBS
VB4
WB2
XB1
ZB2
YB2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
4146
8171
275800
11020
18980
25990
382200
22120
12260
8052
2355
101453
415449
225775
2724331
3467008
POPES CREEK MD.
VIMS CHART # 058
AA1
BA3
CA1
DAI
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
COVE POINT MD.
VIMS CHART # 061
AA2
35770
16260
5282
4668
45720
0
16260
0
61980
4774
193
-------
TOTAL AREA
DENSITY 1 = 0
DENSITY 2= 4774
DENSITY 3 = 0
DENSITY 4 = 0
TOTAL = 4774
TAYLORS ISLAND MD.
VIMS CHART # 062
AA3 53850
BA2 92690
CA4 15120
TOTAL AREA
KING GEORGE VA.-MD.
VIMS CHART # 065
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
GOLDEN HILL MD.
VIMS CHART # 063
AA1
BA4
CA2
DAS
EA4
TOTAL AREA
0
92690
53850
15120
161660
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
3220
3624
8081
8098
1892
3220
8081
8098
5516
24915
AA2
BA4
CA3
DAI
EA4
FA1
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
16380
182800
109300
32870
167400
13720
46590
16380
109300
350200
522470
DAHLGRENVA.-MD.
VIMS CHART # 066
AA4
BA4
CA4
DA2
EA1
FAS
GA2
HAS
IA3
JA1
KA2
LA4
MA2
NA3
OA4
PA4
QA4
RA4
17420
2085
23880
3980
13270
33590
5090
8709
6657
101300
200800
77270
20080
105900
4869
20670
5946
1737
194
-------
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
114570
229950
154856
153877
653253
COLONIAL BEACH NORTH, VA.-MD.
VIMS CHART # 067
AA4
BA4
CA4
DA4
EA2
FA4
GA4
HA1
IA4
JA1
KA4
LA2
MAS
NA2
OA4
PAS
QA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
41720
4236
3206
6505
31340
4524
12440
3306
4469
5695
23600
37660
39220
25900
31810
5573
3365
9001
98265
44793
132510
284569
SOLOMONS ISLAND MD.
VIMS CHART # 071
AA3 29600
TOTAL AREA
DENSITY 1 = 0
DENSITY 2= 0
DENSITY 3= 29600
DENSITY 4 = 0
TOTAL = 29600
BARREN ISLAND MD.
VIMS CHART # 072
AA4
BA2
CA4
DA2
EA2
FA2
GA4
HA2
IA4
JA3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
5432
92880
109500
10660
35210
109700
360000
81490
2188000
21380
0
329940
21380
2662932
3014252
195
-------
HONGAMD.
VIMS CHART # 073
AA1
BA1
CA4
DA3
EA3
FAS
GA2
HA3
JA3
KA3
LA4
MA2
NA3
OA4
PA2
QA2
RA4
SA2
TA4
UA4
VA3
WA2
XA3
YA2
ZA3
AB2
BB3
CBS
DB4
EB2
FB2
GB4
HB2
IB4
JB4
KB3
LB3
MB2
NB3
OB2
PB3
QB3
21280
24030
31640
48440
10260
19810
13400
42320
9783
22420
88690
3104
35820
180300
30210
73200
982800
108100
405400
234100
2754
160900
3324
5834
2422
7066
3488
17200
3449
16840
230900
518800
1018000
28980
65490
16720
66550
41490
69820
5852
51640
14380
RB4
SB2
TB2
UB4
VB2
WB4
XB2
YB4
ZB3
ACS
IA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
WINGATE MD.
VIMS CHART #
AA4
BA4
CA4
DA2
EA2
FA4
GA2
HA2
IA3
JA3
KA2
LA4
MAS
NA1
OA3
PA2
QA4
RA4
2213000
95690
108000
161400
20920
307700
20090
2540
8118
52680
7906
45310
1967502
497949
5224289
7735050
074
7365
4138
306500
97020
23270
712800
175600
132700
123400
604900
4722
86570
1072000
134000
21120
19440
152400
15100
196
-------
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
NANTICOKE MD.
VIMS CHART # 075
AA3
TOTAL AREA
BLOODSWORTH ISLAND MD.
VIMS CHART # 083
134000
452752
1821420
1284873
3693045
50160
DENSITY 1 = 0
DENSITY 2 = 0
DENSITY 3 = 50160
DENSITY 4 = 0
TOTAL = 50160
RICHLAND POINT MD.
VIMS CHART # 082
AA3
BA4
CA2
DA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
44960
181800
11100
2398
0
13498
44960
181800
240258
AA3
BA2
CA2
DA2
EA4
FA4
GA2
HA4
IA2
JA2
KA4
LA4
MA4
NA4
OA4
PA4
QA4
RA4
SA2
TA4
UA4
VA4
WA2
XA4
YA2
ZA4
AB4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
4515
11020
19330
10850
410300
33410
91640
2599000
81040
212200
280900
325600
730100
18230
170400
8964
30070
182300
3699
22070
492900
346100
20610
68680
46340
635900
11420
0
496729
4515
6366344
6867588
197
-------
DEAL ISLAND MD.
VIMS CHART # 084
AA4
BA2
CAS
DA3
EA3
FAS
GAS
HAS
IA1
JA2
KA3
LA2
MAS
NA3
OA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
MONIE MD.
VIMS CHART # 085
AA3
BA3
CAS
DA4
EA3
FAS
GAS
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
17050
2473
8916
8246
23400
58760
37960
9443
13850
3203
13000
26580
10140
19530
21280
13850
32256
189395
38330
273831
119900
3758
5515
36250
1363
4492
7098
0
0
142126
36250
178376
ST. GEORGE ISLAND MD.-VA.
VIMS CHART # 089
AA2 7580
BA4 20830
TOTAL AREA
DENSITY 1 = 0
DENSITY 2= 7580
DENSITY 3 = 0
DENSITY 4 = 20830
TOTAL = 28410
HEDGES STRAITS MD.
VIMS CHART # 091
AA4
BA2
CA4
DA4
EA2
FA2
GA4
HAS
IA2
JA4
KA4
LA4
MAS
NA4
OA4
PA4
QA4
RA4
SA3
TA3
UA1
VA4
WA4
XA1
64140
51480
158400
3088000
58690
21090
1315000
92050
206900
38010
426500
4905
10140
414200
675300
21200
382600
383900
17560
12350
68600
128700
97870
75360
198
-------
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
143960
338160
132100
7198725
7812945
TERRAPIN SAND POINT MD.
VIMS CHART # 092
AA4 309000
BA1 71770
CA4 1683000
DA4 62300
EA4 7104
FA4 49070
TOTAL AREA
DENSITY 1 = 71770
DENSITY 2 = 0
DENSITY 3 = 0
DENSITY 4= 2110474
TOTAL = 2182244
MARION MD.
VIMS CHART # 093
AA2 23220
BA2 22050
CA2 7401
DA3 6181
EA4 75060
FA2 10480
GAS 21630
HA3 18780
IA4 4659
JA2 47280
KA4 56970
LA2 18050
MA3 27540
NA4 173200
OA2 47760
PA4
QA1
RA3
SA2
TA4
UA4
VA4
WA4
XA3
YA2
ZA4
AB2
BB4
CB2
DB4
EB1
FB3
GB4
HB3
JB4
KB4
LB3
MB2
NB3
OB2
PB4
QB4
RB3
SB2
TB3
UB2
VB2
WB4
XB3
IB4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
233
28
31
10
4
11
12
26
48
33
21
43
67
15
28
12
47
233
27
1
55
7
14
162
17
37
5
58
17
76
8
8
2
10
15
40700
346132
543699
1067512
1312
5910
7328
4470
2100
7140
7480
5862
8140
7120
6370
8565
8796
2085
TOTAL = 1998043
199
-------
EWELLMD.-VA.
VIMS CHART #099
AA4
BA2
CA4
DA2
EA4
FA2
GA4
HA2
IA3
JA2
KA3
LA3
MA2
NA3
OA3
PA4
QA3
RA2
TA3
VA1
WA2
SA4
UA2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
GREAT FOX ISLAND MD.-VA.
VIMS CHART # 100
AA4
BA2
CA1
DA4
EA3
FA4
199400
127500
128100
21000
857500
226000
276600
53370
361800
91250
50270
45580
113600
24350
126400
1905000
440800
207600
2803000
1775000
4551
13540000
860600
GA4
HA4
IA1
JA4
KA4
LA3
MA2
NA2
OA4
PAS
QA1
RA4
SA2
TA4
UA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
r
-------
RA3
SA3
TA4
UA3
VA3
WA4
XA4
YA4
ZA3
AB4
BB4
CBS
DBS
EB3
FB4
GB3
HB3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
13460
7024
10650
50370
27120
95440
66350
90700
22480
27760
29600
17630
24140
52320
9576
8902
24540
60030
70595
725170
1164576
2020371
REEDVILLE VA.
VIMS CHART # 106
AA4
BA4
CA2
DA2
EA3
FA2
GA4
HA2
IA3
JA2
KA2
LA2
MA2
NA2
OA3
PAS
QA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
2460
39000
32900
9794
8486
50330
646900
112700
309300
6411
11160
5044
20270
6466
19580
37670
260300
0
255075
375036
948660
SAXISVA.-MD.
VIMS CHART # 102
AA3
BA4
TOTAL AREA
TOTAL
1578771
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
4360
16420
0
0
4360
16420
20780
TANGIER ISLAND VA.
VIMS CHART # 107
AA3
BA4
CA2
EA3
FA4
GA2
HA4
IA2
JA2
KA4
LA4
518900
1221000
175600
97470
345900
259000
147800
58630
298700
1379000
2458000
201
-------
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
CHESCONESSEXVA.
VIMS CHART # 108
AA2
BA3
CAS
DA4
EA4
FA2
GA4
HA2
IA4
JA1
KA3
LA4
MA4
NA3
OA1
PA4
QA2
RA1
SA4
TA4
UA2
VA3
WA4
XA2
YA1
ZA4
AB2
BB2
CB4
DB2
EB1
FB4
0
791930
616370
5551700
6960000
GB2
HB4
IB1
JB4
KB4
LB2
MB4
NB3
OB3
PBS
TOTAL AREA
115000
24300
337200
710600
86690
15450
126300
22100
125400
2375000
50740
13530
36190
151800
11770
14400
18310
4456
344800
42560
498500
22070
274200
143500
28050
141000
42950
17950
351000
365900
27300
123900
769000
53720
255400
495000
228000
210600
464500
154000
220200
207800
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
PARKSLEYVA.
VIMS CHART #
AA4
BA4
CA4
DAS
EA4
FA4
GA2
HA4
IA4
JA4
KA4
LAS
MA2
NA2
OA4
PAS
QA3
RA3
SA3
TA3
UA3
VA4
901360
916616
3338120
4565040
9721136
109
6016
26080
10850
23210
6943
10480
31010
29400
5338
75930
19500
138200
12380
16220
9009
61930
104100
8405
6580
116300
30680
35800
202
-------
WA3
XA4
YA4
ZA3
AB3
BB3
CBS
DB2
EB3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
URBANNAVA.
VIMS CHART #110
AA2
BA2
CA2
DAS
EA3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
IRVINGTONVA.
VIMS CHART #111
AA3
BA4
CA4
DAS
EA1
FA2
GAS
110800
23450
18390
13970
2091000
88910
17900
40210
12940
0
99820
2824925
277186
3201931
314700
664500
845100
157800
24490
0
1824300
182290
0
2006590
17630
46220
21840
145100
45910
233400
652800
HA1
IA4
JA2
KA3
LAS
MAS
NA3
OA3
PAS
QA4
RA2
SA3
TA3
UA4
VA3
WAS
XA3
YA3
ZA3
AB2
BB4
CB1
DB2
EB4
FB2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
51490
10980
44240
41670
32150
12100
58600
17650
7165
20110
3845
9636
17000
4420
11150
37640
124700
68460
149900
42030
23550
33150
26880
328000
114900
130550
465295
1403351
455120
2454316
FLEETS BAY VA.
VIMS CHART #112
AA1 566500
BA2 140200
CAS 166400
DA2 5851
EA3 277500
FA1 186000
GAS 151900
203
-------
HA2
IA3
JA4
KA4
LA4
MA3
NA3
OA4
PA3
QA2
RA4
SA2
TA3
UA2
VA4
WAS
XA3
YA3
ZA3
AB3
BB4
CBS
DBS
EB2
FB3
GB1
HB1
IBS
JB3
KB3
LB4
MBS
NB3
OB3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
236500
12490
25650
15650
3872
6048
10540
40770
54840
52250
3355
5777
630400
18900
29560
10740
7708
4774
4005
18650
13640
94040
21970
194000
75770
40060
23130
63420
3529
35000
9785
38240
41490
4993
815690
653478
1734447
142282
3345897
NANDUA CREEK VA.
VIMS CHART #113
AA2 41270
BA3 114900
CA4 313900
DA2 698100
EA1 298500
FA4 591800
GA4 3000
HA4 110900
IA1 14770
JA3 5564
KA2 74810
LA4 147900
MAI 1647000
TOTAL AREA
DENSITY 1 = 1960270
DENSITY 2= 814180
DENSITY 3 = 120464
DENSITY 4= 1167500
TOTAL = 4062414
PUNGOTEAGUEVA.
VIMS CHART #114
AA3 8515
BA3 47600
CA4 22880
DAS 51420
EA4 78350
FA2 8481
GA2 73980
HAS 9935
IA4 280700
JA3 5078
KA1 141600
LA4 3431000
MAI 347900
NA2 1503000
OA2 55440
PA4 24070
204
-------
QA4
RA1
SA4
TA2
UA1
VA3
WAI
XA4
YA1
ZA4
AB4
BB4
CB3
DBS
EB4
FB4
GB1
HB3
IB1
JB4
KB4
LB3
MB4
NB2
OB3
PB2
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
SALUDAVA.
VIMS CHART #116
AA2
BA1
CA1
DAI
58060
58620
210600
98840
63240
150400
93650
20260
16800
33440
5468
7024
66830
115300
66500
55070
110500
73770
25550
20330
46840
14920
94650
322500
6605
24930
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
WILTON VA.
VIMS CHART #117
AA2
BA2
CAS
DA2
EA3
FAS
GAS
HA4
IA3
JA2
KA2
LA2
152100
38690
0
0
190790
7081
8705
39600
4737
11440
89210
12220
92140
12020
62910
30830
59780
857860
2087171
550373
4455242
7950646
38690
40600
97630
13870
TOTAL AREA
DENSITY 1 = 0
DENSITY 2= 174043
DENSITY 3 = 164490
DENSITY 4= 92140
TOTAL = 430673
DELTAVILLEVA.
VIMS CHART #118
AA2 25650
BA3 214900
CA2 58490
DAI 35930
EA3 38710
FAS 25700
GAS 22860
205
-------
HA2
IA3
JA2
KA2
LA2
MA2
NA2
OA1
PA2
QA4
RA3
SA4
TA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
49570
26760
5014
30670
1730
48890
11550
145900
12810
2240
34330
9957
8942
181830
244374
363260
21139
TA4
UA3
VA2
WA4
XA2
YA4
ZA2
AB4
BBS
CB1
DB4
EB3
FB3
GB2
HB4
IBS
JB3
KB3
TOT;
TOTAL = 810603
JAMESVILLEVA.
VIMS CHART #119
AA3 58160
BA2 13120
CA2 489400
DA4 613700
EA2 111400
FA4 167300
GA2 9428
HA2 66600
IA3 22760
JA3 10940
KA3 3663
LAS 27670
MAS 79230
NA3 31340
OA2 797600
PA4 125200
QA1 278500
RA2 172300
SA4 401300
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
23940
52100
215100
169700
72790
270100
12990
128200
92030
21480
23470
12310
10010
39210
1492
6619
21950
311000
299980
1999938
739782
1924402
4964102
WARE NECK VA.
VIMS CHART # 122
AA2 334700
BA4 631800
CA3 195800
DAS 39550
EA3 146400
FAS 81620
GA2 160000
HA2 267100
IA4 410000
JA3 365300
KA2 53620
LA2 25720
MA3 69150
206
-------
TOTAL AREA
FRANKTOWNVA.
VIMS CHART # 124
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL =
MATHEWS VA.
VIMS CHART # 123
AA2
BA4
CA4
DAS
EA4
FA2
GA1
HA3
IA2
JA3
KA3
LA4
MA4
NA2
OA4
PA2
QA3
RA3
SA3
TA3
UA4
VA4
WA2
0
841140
897820
1041800
2780760
13290
237400
145500
46710
47840
29460
22170
8706
13140
5203
19690
12680
12700
6404
15440
42850
118700
36840
37510
9316
166100
45110
9052
AA2
BA4
CA2
DAS
EA2
FA4
GA1
HA4
IA4
JA4
KA2
LA4
MA2
NA2
OA2
PAS
QA2
RA4
SA2
TA3
UA3
VA3
WA4
XA4
YA4
ZA4
AB3
BBS
CB4
DBS
EB3
FB2
GB2
HB3
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
22170
114196
282675
682770
1101811
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
5040
109200
59590
30220
50850
805600
20000
26690
88450
96650
18600
255900
132800
92840
63280
1511000
45560
65310
60570
76640
5137
232700
72760
24360
72710
11410
53250
15650
6548
88610
49850
16430
27050
67280
20000
572610
2130337
1635588
4358535
207
-------
ACHILLES VA.
VIMS CHART # 131
AA1
BA4
CA4
DA2
EA4
FA2
GA4
HA2
IA2
JA4
LA2
MA2
OA4
PA4
QA4
RA2
SA4
TA1
UA4
VA2
WA4
XA2
YA4
ZA1
AB2
BB4
CB4
DB4
EB3
FB2
GB4
HB4
IB2
JB4
KB2
LB4
MB4
NB2
OB3
PB2
QB4
RB4
SB2
KA4
NA3
185400
1062000
87160
13960
29120
45910
13340
38660
16460
1055000
196700
65780
38250
209200
57460
60550
5308
403300
368200
373400
22550
201600
391600
825500
168200
22940
39270
134900
33730
4800
212300
18220
15400
21290
234300
32790
2102000
110800
17670
12210
17880
15770
38400
556200
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
75780
1987699
121150
7394438
9579066
NEW POINT COMFORT VA.
VIMS CHART # 132
AA2
BA2
CA2
DA3
EA2
FA2
GA4
HA4
IA1
JA2
KA3
LA4
MA2
NA4
OA2
PA4
QA4
RA2
SA1
TA4
UA4
VA1
WA4
XA2
YA4
ZA3
AB2
BB4
CB2
63860
272700
184800
267900
188500
87100
3875000
445500
73870
255100
127300
210200
557600
433000
98650
53660
193200
660100
120500
1022000
25310
61620
1357000
368600
6583
59260
505100
852700
72750
208
-------
DB2 22850
EB3 37250
FB4 88580
GB4 1165
HB4 88590
TOTAL AREA
DENSITY 1 = 255990
DENSITY 2 = 3337710
DENSITY 3 = 491710
DENSITY 4 = 8652486
TOTAL = 12737896
CAPE CHARLES VA.
VIMS CHART # 133
AA4 17240
BA2 175600
CA4 86760
DA4 637300
EA2 101500
FA2 115400
GA4 84660
HA4 24910
IA4 22580
JA4 8764
KA4 572900
LAI 810600
MA3 58420
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
810600
392500
58420
1455114
2716634
CHERITONVA.
VIMS CHART # 134
AA2 60870
BA4 159700
CA1 140100
DA4 261100
EA2 104000
FA4 6321
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
YORKTOWNVA.
VIMS CHART # 139
AA3
BA2
TOTAL AREA
140100
164870
0
427121
732091
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
3292
12530
0
12530
3292
0
15822
POQUOSON WEST VA.
VIMS CHART # 140
AA4
BA4
CA4
DA4
EA2
FA4
GAS
4441
19470
18750
105400
412200
500700
88830
209
-------
HA2
IA4
JA2
KA2
LA4
MAI
NA4
OA2
PAS
QA4
RA4
SA3
TA2
UA3
VA4
WAS
XA3
YA1
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
24500
113200
22100
18120
31700
30840
127500
345600
478500
82000
469800
107100
158700
226400
659400
38120
6719
29900
60740
981220
945669
2132361
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
0
1885343
1626370
6437181
9948894
ELLIOTTS CREEK VA.
VIMS CHART #
AA2
BA1
CAS
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
TM7XTGTnn"\7 O
DJUNoll i o -
DENSITY 4 =
TOTAL =
142
93040
47130
18810
47130
93040
1 OO1 A
loolO
0
158980
TOTAL
4119990
POQUOSONEASTVA.
VIMS CHART # 141
AA2
BA4
CA4
DA4
EA3
FA3
GA4
HA2
IAS
JA4
KA2
LA2
MA4
NA4
2443
6511
8614
17730
21540
1560000
5084000
850700
44830
465800
178500
853700
852300
2226
TOWNSEND VA.
VIMS CHART # 143
AA2
BA3
CAS
DAS
TOTAL AREA
3655
16520
50430
54930
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
0
3655
121880
0
125535
210
-------
HAMPTON VA.
VIMS CHART # 147
AA4
BA4
CA4
DA3
EA2
FA2
GA4
HA4
IA4
JA4
KA2
LA4
MA4
NA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
CAPE HENRY VA.
VIMS CHART # 152
AA3
BA3
CA3
DA2
EA2
FA2
GAS
HAS
IA3
371000
9173
559900
358400
222700
294100
55540
385800
82250
379400
50800
124400
108400
38600
0
567600
358400
2114463
3040463
4099
39920
116900
57840
125000
13410
719
3860
2877
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
0
196250
168375
0
364625
PORT TOBACCO MD.
VIMS CHART # 161
AA1 32250
BA4 71490
CA2 3318
DA4 6735
EA2 2848
FA4 2469
GA2 1795
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
BERLIN MD.
VIMS CHART # 167
AA4
BA3
CAS
TOTAL AREA
32250
7961
0
80694
120905
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
8575
30960
10240
0
0
41200
8575
49775
211
-------
OCEAN CITY MD.
VIMS CHART # 168
AA3 34490
TOTAL AREA
DENSITY 1 = 0
DENSITY 2= 0
DENSITY 3 = 34490
DENSITY 4 = 0
TOTAL = 34490
TINGLES ISLAND MD.
VIMS CHART # 170
BOXIRON MD.-VA.
VIMS CHART # 172
AA3
BA1
CA3
DAS
EA3
FAS
GAS
HAS
IA3
JA3
KA1
LAS
MA3
NA4
OA4
PA4
QA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
630700
365500
3973000
53060
304100
58650
294900
1246000
20750
522800
36380
300600
4506
173800
54720
65050
104300
401880
0
7409066
397870
8208816
AA3
BA3
CA4
DAS
EA4
FAS
GA4
HAS
IA4
JA3
KA1
LA4
MAI
NA4
TOTAL AREA
DENSITY 1 =
DENSITY 2 =
DENSITY 3 =
DENSITY 4 =
TOTAL
2800000
136500
15750
1213000
20560
226200
235600
672600
8352
81580
98950
860500
131400
38020
230350
0
5129880
1178782
6539012
WHITTINGTON POINT MD.-VA,
VIMS CHART # 173
AA4
BA4
CA4
DAS
EA3
FAS
GA3
HAS
IA2
JA3
KA2
LA4
MAI
NA4
OA1
275000
12940
17640
12130
121900
112400
82370
104200
134500
19120
114000
170900
169000
265300
6332
212
-------
TOTAL AKEA
DENSITY 1 = 175332
DENSITY 2 = 248500
DENSITY 3 = 452120
DENSITY 4 = 741780
TOTAL = 1617732
CHINCOTEAGUE EAST VA.
VIMS CHART # 175
AA4 2577000
BA3 4005000
CAS 39000
DA3 35620
TOTAL AREA
DENSITY 1 = 0
DENSITY 2 = 0
DENSITY 3 = 4079620
DENSITY 4 = 2577000
TOTAL = 6656620
213
-------
APPENDIX E
1989 Submerged Aquatic Vegetation Ground Truth Surveys.
214
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= Najas guadalupensis (southern naiad)
= Najas gracillima (naiad)
= Chara sp. (muskgrass)
= Najas minor (slender naiad)
= Unknown species composition
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iash mark separates species data of independent surv
id independent survey dates.
bbreviations under column "Source" are as follows:
CAPT. = Charterboat Captain's Survey
CIT. = Citizen's Survey
FWS = U.S. Fish and Wildlife Service Surveys
USGS = U.S. Geological Survey Potomac River Sui
VIMS = Virginia Institute Of Marine Science Surv
SK = Stan Kollar Of Harford Community Collei
Court Stevenson = J. Court Stevenson Of Univers
Horn Point Environmental La
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