United States
Environmental Protection
Agency
Environmental Monitoring
and Support Laboratory
P 0. Box 15027
Las Vegas NV 89114
EPA-600/3-79-117
December 1979
Research and Development
&ERA
Distribution of
Phytoplankton in
Nevada Lakes
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RESEARCH REPORTING SERIES
Research reports of the Office of Research and Development, U.S. Environmental
Protection Agency, have been grouped into nine series. These nine broad categories
were established to facilitate further development and application of environmental
technology. Elimination of traditional grouping was consciously planned to foster
technology transfer and maximum interface in related fields. The nine series are:
1. Environmental Health Effects Research
2. Environmental Protection Technology
3. Ecological Research
4. Environmental Monitoring
5. Socioeconomic Environmental Studies
6. Scientific and Technical Assessment Reports (STAR)
7. Interagency Energy—Environment Research and Development
8. "Special" Reports
9. Miscellaneous Reports
This report has been assigned to the ECOLOGICAL RESEARCH series. This series
describes research on the effects of pollution on humans.plant and animal species, and
materials. Problems are assessed for their long-and short-term influences. Investiga-
tions include formations, transport, and pathway studies to determine the fate of
pollutants and their effects. This work provided the technical basis for setting standards
to minimize undesirable changes in living organisms in the aquatic, terrestrial, and
atmospheric environments.
This document is available to the public through the National Technical Information
Service, Springfield. Virginia 22161
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EPA-600/3-79-117
December 1979
DISTRIBUTION OF PHYTOPLANKTON IN NEVADA LAKES
by
V. W. Lambou, F. A. Morn's*, M. K. Morris*,
W. D. Taylor, L. R. Williams, and S. C. Hern
Water and Land Quality Branch
Monitoring Operations Division
Environmental Monitoring and Support Laboratory
Las Vegas, Nevada 89114
*Department of Biological Sciences
University of Nevada, Las Vegas
Las Vegas, Nevada 89154
ENVIRONMENTAL MONITORING AND SUPPORT LABORATORY
OFFICE OF RESEARCH AND DEVELOPMENT
U.S. ENVIRONMENTAL PROTECTION AGENCY
LAS VEGAS, NEVADA 89114
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DISCLAIMER
This report has been reviewed by the Fnvironmental Monitoring and
Support Laboratory-Las Vegas, U.S. Environmental Protection Agency, and
approved for publication. Mention of trade names or commercial products does
not constitute endorsement or recommendation for use.
n
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FOREWORD
Protection of the environment requires effective regulatory actions
which are based on sound technical and scientific information. This
information must include the quantitative description and linking of
pollutant sources, transport mechanisms, interactions, and resulting effects
on man and his environment. Because of the complexities involved, assessment
of specific pollutants in the environment requires a total systems approach
which transcends the media of air, water, and land. The Environmental
Monitoring and Support Lahoratory-Las Vegas contributes to the formation and
enhancement of a sound monitoring data base for exposure assessment through
programs designed to:
• develop and optimize systems and strategies for monitoring
pollutants and their impact on the environment
•demonstrate new monitoring systems and technologies by
applying them to fulfill special monitoring needs of the
Agency's operating programs
This report presents the species and abundance of phytoplankton in the
10 lakes sampled by the National Eutrophication Survey in the State of
Nevada, along with results from the calculation of several commonly used
biological indices of water quality and community structure. These data can
be used to biologically characterize the study lakes, and as baseline data
for future investigations. This report was written for use by Federal,
State, and local governmental agencies concerned with water quality analysis,
monitoring, and/or regulation. Private industry and individuals similarly
involved with the biological aspects of water quality will find the document
useful. For further information contact the Water and Land Quality Branch,
Monitoring Operations Division.
George B. Morgan
Director
Environmental Monitoring and Support Laboratory
Las Vegas
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CONTENTS
Page
Foreword iii
Introduction '
Materials and Methods 2
Lake and Site Selection 2
Sample Preparation 2
Examination 3
Quality Control 4
Results 5
Nygaard's Trophic State Indices 5
Palmer's Organic Pollution Indices 5
Species Diversity and Abundance Indices 7
Species Occurrence and Abundance 9
Literature Cited 10
Appendix A. Phytoplankton Species list for the State
of Nevada 11
Appendix B. Summary of Phytoplankton Data 14
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INTRODUCTION
The collection and analysis of phytoplankton data were included in the
National Eutrophication Survey in an effort to determine relationships between
algal characteristics and trophic status of individual lakes.
During spring, summer, and fall of 1975, the Survey sampled 156 lakes in
11 States. Over 4-50 algal species and varieties were identified and
enumerated from the 430 water samples examined.
This report presents the species and abundance of phytoplankton in the
10 lakes sampled in the State of Nevada (Table 1). The Mygaard's Trophic
State (Nygaard 1949), Palmer's Organic Pollution (Palmer 1969), and species
diversity and abundance indices are also included.
TABLE 1. LAKES SAMPLED IN THE STATE OF NEVADA
STORET No.
Lake Name
County
3201
3202
3204
3205
3206
3207
3208
3209
3210
3211
Lake Mead
Lahontan Reservoir
Rye Patch Reservoir
Lake Tahoe
Topaz Reservoir
Upper Pahranagat Lake
Washoe Lake
Wildhorse Reservoir
Wilson Sink Reservoir
Walker Lake
Clark (Mohave in
Ariz.)
Lyon, Churchill
Pershing
Washoe, Carson City,
Douglas (Placer,
El Dorado in Calif.)
Douglas (Mono in
Calif.)
Lincoln
Washoe
Elko
Elko
Mineral
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MATERIALS AND METHODS
LAKE AND SITE SELECTION
Lakes and reservoirs included in the Survey were selected through
discussions with State water pollution agency personnel and U.S. Environmental
Protection Agency Regional Offices (U.S. Environmental Protection Agency
1975). Screening and selection strongly emphasized lakes with actual or
potential accelerated eutrophication problems. As a result, the selection was
1imited to lakes:
(1) impacted by one or more municipal sewage treatment plant outfalls
either directly into the lake or by discharge to an inlet tributary
within approximately 40 kilometers of the lake;
(2) 40 hectares or larger in size; and
(3) with a mean hydraulic retention time of at least 30 days.
Specific selection criteria were waived for some lakes of particular State
interest.
Sampling sites for a lake were selected based on available information on
lake morphornetry, potential major sources of nutrient input, and on-site
judgment of the field limnologist (U.S. Environmental Protection Agency 1975).
Primary sampling sites were chosen to reflect the deepest portion of each
major basin in a test lake. Where many basins were present, selection was
guided by nutrient source information on hand. At each sampling site, a
depth-integrated phytoplankton sample was taken. Depth-integrated samples
were uniform mixtures of water from the surface to a depth of 15 feet
(4.6 meters) or from the surface to the lower limit of the photic zone
representing 1 percent of the incident light, whichever was greater. If the
depth at the sampling site was less than 15 feet (4.6 meters), the sample was
taken from just off the bottom to the surface. Normally, a lake was sampled
three times in 1 year, providing information on spring, summer, and fall
conditions.
SAMPLE PREPARATION
To preserve the sample 4 milliliters (ml) of Acid-Lugol's solution
(Prescott 1970) were added to each 130-ml sample from each site at the time of
collection. The samples were shipped to the Environmental Monitoring and
Support Laboratory, Las Vegas, Nevada, where equal volumes from each site
-------
were mixed to form two 130-ml composite samples for a given lake. One
composite sample was put into storage and the other was used for the
examination.
Prior to examination, the composite samples were concentrated by the
settling method. Solids were allowed to settle for at least 24 hours prior to
siphoning off the supernate. The volume of the removed supernate and the
volume of the remaining concentrate were measured and concentrations
determined. A small (8-ml) library subsample of the concentrate was then
taken. The remaining concentrate was gently agitated to resuspend the
plankton and poured into a capped, graduated test tube. If a preliminary
examination of a sample indicated the need for a more concentrated sample, the
contents of the test tube were further concentrated by repeating the settling
method. Final concentrations varied from 15 to 40 times the original.
Permanent slides were prepared from concentrated samples after analysis
was complete. A ring of clear Karo® corn syrup with phenol (a few crystals of
phenol were added to each 100 ml of syrup) was placed on a glass slide. A
drop of superconcentrate from the bottom of the test tube was placed in the
ring. This solution was thoroughly mixed and topped with a coverglass. After
the syrup at the edges of the coverglass had hardened, the excess was scraped
away and the mount was sealed with clear fingernail polish. Permanent diatom
slides were prepared by drying sample material on a coverglass, heating in a
muffle furnace at 400° C for 45 minutes, and mounting in Hyrax®. Finally, the
mounts were sealed with clear fingernail polish.
Backup samples, library samples, permanent sample slides, and
Hyrax-mounted diatom slides are being stored and maintained at the
Environmental Monitoring and Support Laboratory-Las Vegas.
EXAMINATION
The phytoplankton samples were examined with the aid of binocular
compound microscopes. A preliminary examination was performed to precisely
identify and list all forms encountered. The length of this examination
varied depending on the complexity of the sample. An attempt was made to find
and identify all of the forms present in each sample. Often forms were
observed which could not be identified to species or to genus. Abbreviated
descriptions were used to keep a record of these forms (e.g., lunate cell,
blue-green filament, Navicula #1). Diatom slides were examined using a
standard light microscope. If greater resolution was essential to accurately
identify the diatoms, a phase-contrast microscope was used.
After the species list was compiled, phytoplankton were enumerated using
a Neubauer Counting Chamber with a 40X objective lens and a 10X ocular lens.
All forms within each field were counted. The count was continued until a
minimum of 100 fields had been viewed, or until the dominant form had been
observed a minimum of 100 times.
®Registered trademark
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QUALITY CONTROL
Project phycologists performed internal quality control intercomparisons
regularly on 7 percent of the species identification and counts. Although an
individual had primary responsibility for analyzing a sample, taxonomic
problems were discussed among the phycologists.
Additional quality control checks were performed on the Survey samples by
Dr. G. W. Prescott of the University of Montana at the rate of 5 percent.
Quality control checks were made on 75 percent of these samples to verify
species identifications while checks were made on the remaining 25 percent of
the samples to verify genus counts. Presently, the agreement between quality
control checks for species identification and genus enumerations is
satisfactory.
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RESULTS
A phytoplankton species list for the State is presented in Appendix A.
Appendix B summarizes all of the phytoplankton data collected from the State
by the Survey. The latter is organized by lake, and includes an alphabetical
phytoplankton species list with concentrations for individual species given by
sampling date. Results from the application of several indices are presented
(Nygaard's Trophic State, Palmer's Organic Pollution, and species diversity
and abundance). Each lake has been assigned a four-digit STORET number.
(STORET (STOrage and RETrieval) is the U.S. Environmental Protection Agency's
computer system which processes and maintains water quality data.) The first
two digits of the STORET number identify the State; the last two digits
identify the lake.
NYGAARD'S TROPHIC STATE INDICES
Five indices devised by Nygaard (1949) were proposed under the assumption
that certain algal groups are indicative of levels of nutrient enrichment.
These indices were calculated in order to aid in determining the surveyed
lakes' trophic status. As a general rule, Cyanophyta, Euglenophyta, centric
diatoms, and members of the Chlorococcales are found in waters that are
eutrophic (rich in nutrients), while desmids and many pennate diatoms
generally cannot tolerate high nutrient levels and so are found in
oligotrophic waters (poor in nutrients).
In applying the indices to the Survey data, the number of taxa in each
major group was determined from the species list for each sample. The ratios
of these groups give numerical values which can be used as a biological index
of water richness. The five indices and the ranges of values established for
Danish lakes by Nygaard for each trophic state are presented in Table 2. The
appropriate symbol, (E) eutrophic and (0) oligotrophic, follows each
calculated value in the tables in Appendix B. A question mark (?) following a
calculated value in these tables was entered when that value was within the
range of both classifications.
PALMER'S ORGANIC POLLUTION INDICES
Palmer (1969) analyzed reports from 165 authors and developed algal
pollution indices for use in rating water samples with high organic pollution.
Two lists of organic-pollution-tolerant forms were prepared, one containing
20 genera, the other, 20 species (Tables 3 and 4). Each form was assigned a
pollution index number ranging from 1 for moderately tolerant forms to 6 for
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TABLE 2. NYGAARD'S TROPHIC STATE INDICES ADAPTED FROM HUTCHINSON (1967)
Index
Calculation
Oligotrophlc Eutrophic
Myxophycean
Chlorophycean
Diatom
Euglenophyte
Compound
Myxophyceae
Desmideae
Chi orococcales
Desmideae
Centric Diatoms
Pennate Diatoms
Euglenophyta
Myxophyceae + Chi orococcales
Myxophyceae + Chi orococcales +
0.0-0.4
0.0-0.7
0.0-0.3
0.0-0.2
0.0-1.0
0.1-3.0
0.2-9.0
0.0-1.75
0.0-1.0
1.2-25
Centric Diatoms + Euglenophyta
Desmideae
TABLE 3. ALGAL GENUS POLLUTION INDEX
(Palmer 1969)
TABLE 4. ALGAL SPECIES POLLUTION
INDEX (Palmer 1969)
Genus
Anacystis
Ankistrodesmus
Chlamydomonas
Chlorella
Closterium
Cyclotella
Euglena
Gomphonema
Lepocinclis
Melosira
Micractinium
Navicula
Nitzschia
Oscil latoria
Pandorina
Phacus
Phormidium
Scenedesmus
Stigeoclonium
Synedra
Pollution
Index
1
2
4
3
1
1
5
1
1
1
1
3
3
5
1
2
1
4
2
2
Species
Ankistrodesmus falcatus
Arthrospira jenneri
Chlorella vulgaris
Cyclotella meneghiniana
Euglena gracilis
Euglena viridis
Gomphonema pjirvulum
Melosira varians
Navicula cryptocephala
Nitzschia acicularis
Nitzschia palea
Oscillatoria chlorina
Oscillatoria limosa
Oscillatoria princeps
Oscillatoria putrida
Oscillatoria tenuis
Pandorina morum
Scenedesmus quadricauda
Stigeoclonium tenue
Synedra ulna
Pollution
Index
3
2
2
2
1
6
1
2
1
1
5
2
4
1
1
4
3
4
3
3
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extremely tolerant forms. Palmer based the index numbers on occurrence
records and/or where emphasized by the authors as being especially tolerant of
organic pollution.
In analyzing a water sample, any of the 20 genera or species of algae
present in concentrations of 50 per milliliter or more are recorded. The
pollution index numbers of the algae present are totaled, providing a genus
score and a species score. Palmer determined that a score of 20 or more for
either index can be taken as evidence of high organic pollution, while a score
of 15 to 19 is taken as probable evidence of high organic pollution. Lower
figures suggest that the organic pollution of the sample is not high, that the
sample is not representative, or that some substance or factor interfering
with algal persistence is present and active.
SPECIES DIVERSITY AND ABUNDANCE INDICES
"Information content" of biological samples is being used commonly by
biologists as a measure of diversity. Diversity in this connection means the
degree of uncertainty attached to the specific identity of any randomly
selected individual. The greater the number of taxa and the more equal their
proportions, the greater the uncertainty, and hence, the diversity (Pielou
1966). There are several methods of measuring diversity, e.g., the formulas
given by Brillouin (1962) and Shannon and Weaver (1963). The method which is
appropriate depends on the type of biological sample on hand.
Pielou (1966) classifies the types of biological samples and gives the
measure of diversity appropriate for each type. The Survey phytoplankton
samples are what she classifies as larger samples (collections in Pielou1 s
terminology) from which random subsamples can be drawn. According to Pielou,
the average diversity per individual (H) for these types of samples can be
estimated from the Shannon-Wiener formula (Shannon and Weaver 1963):
H = -E PI 1°9X Pi
1=1
where P is the proportion of the ith taxon in the sample, which is calculated
from n-j/N; nj is the number of individuals per milliliter of the ith
taxon; N is {he total number of individuals per ml; and S is the total number
of taxa. However, Basharin (1959) and Pielou (1966) have pointed out that H
calculated from the subsample is a biased estimator of the sample H, and if
this bias is to be accounted for, we must know the total number of taxa
present in the sample since the magnitude of this bias depends on it.
Pielou (1966) suggests that if the number of taxa in the subsample falls
only slightly short of the number in the larger sample, no appreciable error
will result in considering S, estimated from the subsample, as being equal to
the sample value. Even though considerable effort was made to find and
identify all taxa, the Survey samples undoubtedly contain a fair number of
rare phytoplankton taxa which were not encountered.
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In the Shannon-Wiener formula, an increase in the number of taxa and/or
an increase in the evenness of the distribution of individuals among taxa will
increase the average diversity per individual from its minimal value of zero.
Sager and Hasler (1969) found that the richness of taxa was of minor
importance in determination of average diversity per individual for
phytoplankton and they concluded that phytoplankton taxa in excess of the 10
to 15 most abundant ones have little effect on H. This was verified by our
own calculations. Our counts are in number per milliliter and since
logarithms to the base 2 were used in our calculations, H is expressed in
units of bits per individual. When individuals of a taxon were so rare that
they were not counted, a value of 1/130 per milliliter or 0.008 per milliliter
was used in the calculations since at least one individual of the taxon must
have been present in the collection.
A Survey sample for a given lake represents a composite of all
phytoplankton collected at different sampling sites on the lake during a given
sampling period. Since the number of samples (M) making up a composite is a
function of both the complexity of the lake sampled and its size, it should
affect the richness-of-taxa component of the diversity of our phytoplankton
collections. The maximum diversity (MaxH) (i.e., when the individuals are
distributed among the taxa as evenly as possible) was estimated from Iog2 S
(Pielou 1966), while the minimum diversity (MinH), was estimated from the
formula:
HlnH - -
given by Zand (1976). The total diversity (D) was calculated from HN (Pielou
1966). Also given in Appendix B are L (the mean number of individuals per
taxa per milliliter) and K (the number of individuals per mill il Her of the
most abundant taxon in the sample).
The evenness component of diversity (J) was estimated from H/MaxH
(Pielou 1966). Relative evenness (RJ) was calculated from the formula:
D1 _ H-MinH
Ku -
MaxH-MinH
given by Zand (1976). Zand suggests that RJ be used as a substitute for both
J and the redundancy expression given by Wilhm and Dorris (1968). As pointed
out by Zand, the redundancy expression given by Wilhm and Dorris does not
properly express what it is intended to show, i.e., the position of H in the
range between MaxH and MinH. RJ may range from 0 to 1; being 1 for the most
even samples and 0 for the least even samples.
Zand (1976) suggests that diversity indices be expressed in units of
"sits", i.e., in logarithms to base S (where S is the total number of taxa in
the sample) instead of in "bits", i.e., in logarithms to base 2. Zand points
out that the diversity index in sits per individual is a normalized number
ranging from 1 for the most evenly distributed samples to 0 for the least
evenly distributed samples. Also, it can be used to compare different
samples, independent of the number of taxa in each. The diversity in bits per
8
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individual should not be used in direct comparisons involving various samples
which have different numbers of taxa. Since MaxH equals log S, the expression
in sits is equal to logs $> or 1* Therefore diversity in sits per
individual is numerically equivalent to J, the evenness component for the
Shannon-Wiener formula.
SPECIES OCCURRENCE AND ABUNDANCE
The alphabetic phytoplankton species list for each lake, presented in
Appendix B, gives the concentrations of individual species by sampling date.
Concentrations are in cells, colonies, or filaments (CEL, COL, FIL) per
milliliter. An "X" after a species name indicates that the species identified
in the preliminary examination was in such a low concentration that it did not
appear in the count. A blank space indicates that the organism was not found
in the sample collected on that date. Column S is used to designate the
examiner's subjective opinion of the five dominant taxa in a sample, based
upon relative size and concentration of the organism. The percent column (%C)
presents, by abundance, the percentage composition of each taxon.
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LITERATURE CITED
Basharin, G. P. 1959. On a statistical estimate for the entropy of a
sequence of independent random variables, pp. 333-336. In: Theory of
Probability and Its Applications (translation of "Teoriya Veroyatnosei i
ee Premeneniya"). N. Artin (ed). 4. Society for Industrial and
Applied Mathematics, Philadelphia.
Brillouin, L. 1962. Science and Information Theory (2nd ed.). Academic
Press, New York. 351 pp.
Hutchinson, G. E. 1967. A Treatise on Limnology. II. Introduction to Lake
Biology and the Limnoplankton. John Wiley and Sons, Inc., New York.
1,115 pp.
Nygaard, G. 1949. Hydrobiological studies of some Danish ponds and lakes.
II. (K danske Vidensk. Selsk.) Biol. Sci. 7:293.
Palmer, C. M. 1969. A composite rating of algae tolerating organic
pollution. J. Phycol. 5:78-82.
Pielou, E. C. 1966. The measurement of diversity in different types of
biological collections. J. Theor. Biol. 13:131-144.
Prescott, G. W. 1970. How to Know the Freshwater Algae. William C. Brown
Company, Dubuque. 348 pp.
Sager, P. E., and A. D. Hasler. 1969. Species diversity in lacustrine
phytoplankton. I. The components of the index of diversity
from Shannon's formula. Amer. Natur. 103(929):51-59.
Shannon, C. E., and W. Weaver. 1963. The Mathematical Theory of Commu-
nication. University of Illinois Press, Urbana. 117 pp.
U.S. Environmental Protection Agency. 1975. National Eutrophication Survey
Methods 1973-1976. Working Paper No. 175. Environmental Monitoring and
Support Laboratory, Las Vegas, Nevada, and Corvallis Environmental
Research Laboratory, Corvallis, Oregon. 91 pp.
Wilhm, V. L., and T. C. Dorris. 1968. Biological parameters for water
quality criteria. Bio-Science. 18:477.
Zand, S. M. 1976. Indexes associated with information theory in water
quality. J. Water Pollut. Contr. Fed. 48(8):2026-2031.
10
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APPENDIX A
PHYTOPLANKTON SPECIES LIST FOR THE STATE OF NEVADA
11
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Actinastnm hantzschii
v. fluviatile
Anabaena
Ankistrodesmus falcatus
Ankist rode emus falcatus
V. mirabilis
Aphanizomenon flos-aquae
Aphanothece
Asterionella formosa
Botryococcus braunii
Caloneie amphisbaena
Ceratium hirundinella
Ceratium hirundinella
f. furcoides
Chlamydomonas
Ch.roococcus
Closterium
Cocconeis pediculus
Cocconeis placentula
Coelastrum microporum
Coelastnm sphaericum
Cosmariwn
Cruaigen-ia quadrat a
Crucigenia tetrapedia
Cryptomonas erosa
Crytomonas marssonii
Cyclot ell a meneghiniana
Cylindrotheca gracilis
Cylindrofheca spiral is
Cymatopleura solea
Cymhella affinis
Dactylococcopsis
Diatoma vulgare
Dictyosphaerium pulchelltm
Dindbryon divergene
Entamaneis ornata
Epithemia turgida
Euglena acus
Eunotia pectinalis
v. ventrieosa
Fragilaria brevistriata
Fragilaria brevistriata
v. trigibba
Fragilaria arotonensis
Glenodinium
Gloeocapsa
Gloeotrichia echinulata
Gamphanema olivaceujn
Gomphonema truncation
Gymnodinium ordinatwn
Gyrosigma
Hantzschia amphioxys
Lyngbya
Melosira distans
Melosira granulata
Melosira granulata
V. anguetissima
Melosira italica
Melosira varians
Merismopedia min-ima
Mesostigma viridis
Microcystis aeruginosa
Microcystis incerta
Mougeotia
Navicula exigua
Nitzsahia filiformis
Nodularia
Oocystis
Opephora
Oscillatoria
Pandorina morum
Pediastrum boryanum
Pediastrum duplex
V. reticulatwn
Phacus helikoides
Phormidiim mucicola
Pinnularia
Quadrigula chodatii
Raphidiopsis curvata
Khoicosphenia curvata
Rhopalodia gibba
Scenedesmus acuminatus
Scenedesmus dimorphus
Scenedesmus intermedius
v. acaudatus
Scenedesmus quadricauda
Schroederia setigera
Skeletonema potamos
Sphaerocystis sohroeteri
Staurastrum
Stauroneis
Stephanodiscus
Surirella ovalis
Surirella ooata
Synedra ulna
Tabellaria fenestrata
Tetraedran minmum
Tetraedron minimum
V. scrobiculatum
Tetraedron muticum
Tetraetrum glabrum
Trachelomonas acanthostoma ?
12
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Traahelomonas oblonga Trachelanonas volvocina
v. australica V. punetata
Trachelomonas volvocina
13
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APPENDIX B. SUMMARY OF PHVTOPLANKTON DATA
This appendix was generated by computer. Because it was only possible to
use upper case letters in the printout, all scientific names are printed in
upper case and are not italicized.
The alphabetic phytoplankton lists include taxa without species names
(e.g., EUNOTIA, EUNOTIA #1, FLAGELLATE, FLAGELLATES, MICROCYSTIS INCERTA?,
CHLGROPHYTA.N COCCOIO CELLED COLONY). When species determinations were not
possible, symbols or descriptive phrases were used to separate taxa for
enumeration purposes. Each name on a list, however, represents a unique
species different from any other name on the same list, unless otherwise
noted, for counting purposes.
Numbers were used to separate unidentified species of the same genus. A
generic name listed alone is also a unique species. A question mark (9) is
placed immediately after the portion of a name which was assigned with
uncertainty. Numbered, questioned, or otherwise designated taxa were
established on a lake-by-lake basis; therefore NAVICULA #2 from lake A cannot
be compared to NAVICULA #2 from lake B. Pluralized categories (e.g.,
FLAGELLATES, CENTRIC DIATOMS, SPP.)-were used for counting purposes when taxa
could not be properly differentiated on the counting chamber.
14
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LAKK NAMEI LAKE MEAD
STOHET NUMBERI 3201
KYGAAP.D TROPHIC STATE INDICES
DATE 02 74 75 06 11 75
MYXOPHYCEAN
CHLOROPHYCCAN
EUGLSNOPHYTE
DIATOM
COMPOUND
01/0 E
02/0 E
0/03 ?
1.00 V.
04/0 E
0/01 0
2.00 E
0/02 7
0.3) E
3.00 E
PALMER'S ORGANIC POLLUTION INDICES
DATE 02 24 75 06 11 73
GENUS
SPECIES
00
00
00
00
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE
AVERAGE DIVERSITY H
NitMnr.q nr TAXA *
NUMBER OP SAHPbFS COMPOSITED M
MAXIMUM DIVERSITY NAXH
MINIMUM DIVERSITY MINH
TOTAL DIVERSITY D
TOTAL NUMBER OP INDIVIDUALS/ML N
EVENNESS COMPONENT J
RELATIVE EVENNESS RJ
MEAN NUMBER OP INDIVIDUAL6/TAXA L
NUMBER/ML OF MOST ABUNDANT TAXON K
02 24 75 06 11 7S
1.35
s.oo
14,00
3,00
0,12
812,70
602.00
0.45
0.43
75.25
417.00
0.87
11.00
14.00
3.46
0.56
133.98
154.00
0.25
0.11
14.00
110.00
15
-------
LUC NAMCl LAKE MEAD
STOPCT NUMBER I J30I
TAXA
CENTRIC DIATOM
Cl'R»TIim HIRUNDINELLA
CHRUt>»-0«US 7
CHROOMOMg T ACl'TA
CRYPTUMONA8
CRYftl'l-ux** ECOSA
DIATOM* VULSARE
D1NOBRION DlVtRGCNR
FKACILARIA CROTDNEN8I8
MLRIIMOPCDIA MINIMI
oocrsTia
BHOICnSPHlNIA CURVATA
8CHROEOCRIA SETIRCFIA
SPHAEMnCVtlTII (CHRUETLFil
SIAURHTPUM
8TEPHANODUCU8
TKTRAEDRON MUTICIIN
TOTAL
CONTIMUED
02 24 15
OS 11 TS
roan
CIL
CEL
CCL
CEL
rrt.
CIL
CIL
CEL
CEL
COl
COL
CEL
CEL
COL
CEL
CEL
CEL
•
1
1
1
4
«C
IS. 4
69.1
'.«
T,»
ALGAL
UNITS
PER ML
X
»J
417
4*
X
X
X
46
8
1
1
tc
'1.4
II. 6
ALGAL
UNITS
PER ML
X
110
X
X
X
X
X
44
X
X
X
CO]
184
16
-------
LAKE NAMEl LAHONTAN RE8.
STORE! NUMBER! 3202
NYCAARP TROPHIC STATE INDICES
DATE 01 17 7S 07 09 75 11 07 75
MYXOPHYCEAN
CHLOROPHYCEAN
EUGLENOPHYTE
DIATOM
COMPOUND
01/0 E
0/0 0
2.00 E
0.33 E
06/0 E
01/0
Ot/0
0/03
1.00
04/0
0/0 0
01/0 E
0/01 t
0.40 C
05/0 E
PALMER'S ORGANIC POLLUTION INDICES
DATE 09 17 75 07 09 75 11 07 75
GENUS
8PECIE8
07
00
01
00
07
00
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE 01 17 75 07 09 75 11 07 79
AVERAGE DIVERSITY
NUMBER OF TAXA
NUMBER OF SAMPLES COMPOSITED
MAXIMUM DIVERSITY MAXH
MINIMUM DIVERSITY MINH
TOTAL DIVERSITY
TOTAL HUN8ER Or INDIVIDUALS/ML
KVENNESS COMPONENT
RELATIVE EVENNESS
MEAN NUMBER OF INDIVIDUALS/TAX*
NUMBER/ML OF MOST ABUNDANT TAXON
H
8
M
XH
NH
D
ft
J
RJ
L
K
2,25
ao.oo
4.00
4.»2
0.12
4461.75
1993.00
0.53
0.51
99.15
684.00
1.13
8.00
4.00
3.00
0.02
5209.10
4610.00
0.36
0.38
576. 38
3646.00
2.93
17.00
4.00
4.09
0.16
3395.17
1159.00
0.72
0.71
68.18
316.00
17
-------
LAKC HANII LAHONTAI HI*.
ITORCT MUM1IRI 1101
CCUTINUCD
01 IT 71
07 ot is
II 07 71
TAXA
ANAIAENA
AITCRIONELLA fORMOIA
CENTRIC DIATOM
CHLAMYDONONAI
CHLOROPHYTAN LUNATE CELL
CHROOMONAI t ACUTA
COCCONCII PLACCHTUU
CMYPTOMONAa EROIA
CYLINDROTHECA ORACILII
CYHBELLA
OACTYLOCDCCORIH
PIATONA VUL6ARC
CUCLCNA
rHACILAIItA CHOTOMEMII
aiENOOINIUM
>CLOfI*A II
NELOIIM 01ITAII
NELOII«A GKANULATA
NELOVIM CH»»ULATA
T. ANaU«TIHIMA
NEL06IRA VARIAM
NAVICULA
KIT1SCHIA II
•IT1ICMIA II
•ITZSCHIA II
• ITI1CHI1 Ut.
RH01COIPHEIIA CURTAIA
ICHRDCDERIA SKTIOCRk
IKtLrTONEMA POTANOf
•TEPHANODMCIU
IURIRILLA OVATA
tYNCUMA ULNA
TABELLARIA rE«E«TRATA
TETRAtDRON MINIMUM
TfUCHELONONA*
TOTAL
rORN
riL
CEL
CKL
CEL
CEL
CCL
CEL
CEL
CEL
CEL
CCL
CEL
CEL
CEL
CEL
CKL
CEL
CEL
CEL
CCL
CCL
CCL
CCL
CCL
CCL
CCb
CCL
CCL
CCL
CCL
CEL
CCL
CCL
CCL
ALOAL
UNIT!
• »C PER ML
1
J
4
(
1
1
1.71 14
14.11 »I4
l.«l 17t
1 I
11.11 101
1 f
1.11 14
1.4
».7
11.1
II
1
14
I
I
X
X
410
X
X
1
X
1
1 X
ALGAL
UNIT*
I »C PER ML
1 1 X
41 l.fl it
1
1
1
1
f.o
71.1
T.I
1.1
t.l
411
J4«4
X
144
!«
It
ALOAL
UNIT*
1 «C PER ML
1
4
t
1
I
11.*
11.4
4.4
t.l
11.*
27,1
t.l
4.*
«.*
X
111
111
X
11
X
X
X
101
111
11*
X
101
X
11
11
X
ttll
4*10
lilt
18
-------
LAKE NUKE I RYE PATCH RES.
STORET NUMBER! 3204
NYCAAPD TROPHIC STATE INDICES
DATE 06 01 7? 07 11 75 11 07 75
hYXOPHYCEAN 01/0 E 1.00 C 01/0 C
CHLOROPHYCEAN 0/0 0 1.00 E 04/0 E
El'CLENOPHYTE 1,00 E 0.50 E 0.30 t
DIATOM 0.50 E 0.50 E 0.67 E
COMPOUND 04/0 E 4.00 E 08/0 E
PALMER'S ORGANIC POLLUTION INDICES
DATE 06 01 75 07 11 75 11 07 75
GENUS 00 00 05
SPECIES 00 00 0]
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE 06 01 75 07 11 75 11 07 75
AVERAGE DIVERSITY H 0.02 1.01 2.35
NUMBER OP TAXA 3 8.00 8.00 tS.OO
NUMBER OF SAMPLES COMPOSITED M 2.00 5.00 9.00
MAXIMUM DIVERSITY MAXH 3.00 3.00 3.91
MINIMUM DIVERSITY MINH i.4i o.?6 0.07
TOTAL DIVERSITY D O.CO 68.68 6457.80
TOTAL NUMBER OP INDIVIDUALS/ML N 30.00 68.00 2748,00
EVENNESS COMPONENT J 0.01 0.34 0.60
RELATIVE EVENNESS RJ -0.87 0.12 0.60
MEAN NUMBER OF INDIVIDUALS/TAX^ L 3.75 8.50 183.20
NUMBER/ML OP MOST ABUNDANT TAXON K 30.00 34,00 819.00
19
-------
LAKE NANEl Kit rUTCM MM,
•TORCT miMIIKI 1104
TAXA
AKABACNA
CCNTRIC DIATOM
CHLAMTDOMONAa
CHROOMONA4 f ACUTA
CLOlfERIUN
CRtrrONONAt CROJA
ciANOPHm* r I uncut
CICLOTCLL*
CTMATOPLCURA
CTMICLLA
CUGLCNA
COKTIMVCO
04 01 TS
It 01 TS
4TROalCllA
NftOIIRA GRANULATA
NITStCHIA
OOCtlTII
PAUDORINA NORUM
PtNN»tt DIATOM
PH1CU*
RHOPALOUIA omm
BcmcoiaMu* OUADRICAUOA
ItCHRllEDKRIA BCT1QE«A
•PH»r»OCI»TII iCHROITIKI
SURIHtULA OVATk
TITRH8TRUK CL1BRUM
fRACHCLOMOHAI ACANTVOITOMA t
TOTAL
TORN
rii
CEL
CCL
C(L
CCL
CCL
riL
CCL
CCL
CCL
CCL
CCL
CCL
CCL
CCL
CCL
COL
COL
CCL
CtL
CCL
COL
CCL
COL
CCL
COL
cct
•
i
»c
too,
AL4AL
DN1TI
»CII ML
I
It
I
I
r
i
i
i
•
i
a
*c
10.0
10.0
AI.flAL
Dklll
MR ML
I
I
14
I
t
14
I
I
•
4
1
•
1
a
ALGAL
UMITI
«C »CR ML
|
1
10.41 144
11.41 II*
1
l.fl II
1 X
1 X
1
t
1
1
1
1 X
1 X
1
l.ll 143
l.tl Kl
1 X
1
1
1 I
14.11 131
|
t,»l »1
1 X
1 X
10
41
1741
20
-------
LAKE NAME! LAKE TAHJE
STORE! NUMBER I J2OS
NYGAARD TROPHIC STATE INDICES
DATE 03 IB 75 07 02 75 11 04 75
MYXOPHYCEAN
CHLOROPHYCEAN
EUGLCNOPHYTG
DIATOM
COMPOUND
0/01 0
0/01 0
0/0 ?
2,00 E
2.00 E
0/01 0
0/01 0
01/0 E
1.00 E
2,00 K
0/01 0
0/01 0
0/0 T
0.50 E
1.00 U
PALMER'S ORGANIC POLLUTION INDICES
DATH 03 18 75 07 02 75 11 04 75
GENUS
SPECIES
00
00
03
00
00
00
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE 03 18 75 07 02 75 11 04 75
AVERAGE DIVERSITY H 1.00 0.00 1.5«
NUMBER OF TAXA * 5.00 4.00 5.00
NUMBER or SAMPLES COMPOSITED M 10.00 6.00 10.00
MAXIMUM DIVERSITY MAXH 2.12 2.00 2.32
MINIMUM DIVERSITY MINH 0.43 0.10 1.75
TOTAL DIVERSITY D 70.00 0.00 12.64
TOTAL MUMPER OF INDIVIDUALS/ML N 70.00 302.00 8.00
EVENNESS COMPONENT J 0.43 0.00 O.S8
RELATIVE EVENNESS RJ 0.31 -0.05 -0,29
MEAN NUMBER OF INDIVIDUAL8/TAXA L 14.00 75.50 1.60
NUMBER/MI. Of MOST ABUNDANT TAXON K 35.00 302.00 3,00
21
-------
LAKE H»»El LAKF IAHOC
RTOUtT HUMRCRl DOS
TAXA
CENTRIC DIATOM
CHROOMONAS T »CUT»
COBKAPIUM
CIMBtLLA
G1HNODINIUM OHOINATUM
MCLOBIRA ITALIC*
COITINUCD
0) II
01 01 18
11 04 IS
(YNEDRA ULNA
IRACHtbOHONAS
HITAl,
,
1
TOM 1*
CIL 1
en. i
CEL 1
CCL 1
Cll I
crb i
CCL II
CCL la
CEL 1
CEL 1
»c
SO. a
10.0
ALGkL
UH1T8
PtR ML
X
X
X
IS
IS
70
s
t
»c
100.
ALCAl
UNITS
PER ML
X
101
X
X
101
• »c
117. S
1
1
117. S
I2S.O
1
1
1
1
1
ALGAL
UNITS
PCI) ML
1
X
1
3
X
I
22
-------
NAMEl 'i'UPAZ RKb.
STORET NUMBERl 320S
NYGAARD TROPHIC STATE INDICES
DATE 01 19 75 06 10 75 11 05 75
MYXOPHYCEAN
CHLOROPHYCEAN
EUGLENOPHYTE
DIATOM
COMPOUND
0/01 0
2.00 E
0/02 ?
1.00 E
5.00 E
04/0 E
02/0 E
0/06 ?
0.40 E
OS/0 E
2.00 E
2.00 E
0/04 T
2.00
6.00 E
PALMER'S ORGANIC POLLUTION INDICES
DATE 03 19 75 06 30 75 11 05 75
GENUS
SPECIES
01
00
06
00
01
00
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE
AVERAGE DIVERSITY
NUMBER OF TAXA
NUMBER OF SAMPLES COMPOSITED
MAXIMUM DIVERSITY MAXH
MINIMUM DIVERSITY MINH
TOTAL DIVERSITY
TOTAL NUMBER OP INDIVIDUALS/ML
EVENNESS COMPONENT
RELATIVE EVENNESS
MEAN NUMBER OF INDIVIDUALS/TAXA
NUMBER/ML OF MOST ABUNDANT TAXON
01 19 75 06 30 75 11 05 75
H
S
M
XH
NH
D
N
J
RJ
L
K
2.44
11.00
2.00
3.46
0.15
1742.16
714.00
0.71
0.70
64.91
198.00
1.29
17.00
2.00
4.09
0.02
16829.34
13046,00
0.32
0.32
767.41
9825.00
2.29
11.00
2.00
3.46
0.19
1284.69
561.00
0.66
0.65
51.00
224.00
23
-------
LAKE IIANfl TOPAt RE».
STORET NUMBERl }>0»
COKTIIIUEO
01 19 75
0« 10 7S
II 05 75
APHANIZOMCNON rtna-Aoutc
ASTtRIQNtbl* FORMOSA
CEHTRIC DIATOH II
CERATIUN HIRUNDINELLA
CHROOHOIUS ? ACUTA
eOCCONEJ*
CRIPTOMOHA8
CRTPTOMOKAI EP06A
DIAIONA VULGARE
DICTTOIPMAtRIUN PULCHELLUN
EPITHEM1A
FRACILARIA CROTONCKSIS
WELOtlKA
OOCTITIB
OSCIILATOR1A
fHORNIDIVM MUCICOLA
ICTIGERA
(TAURAltRUM
BTEPH*ROOI«CUI
SURIREbL* OTAIA
TOTAL
FORM
PIL
rit
CEL
CEb
CEL
CEl
cet
CEL
CEL
cct>
CEL
COL
CEL
CCL
CEL
COL
riL
rn
CEL
COL
CEL
CCL
CEL
ALGAL 1
UNIT* 1
1 %C PER ML IS
1 1 1
1 1 13
II * 11
9117.71 199 |
1 1 1
lit. II 79 IS
II XI
41 S,M 10 IS
1 1 1
1 1 1
1 1 1
111*. 71 11» 1
1 1 1
JI3J.1I IS» II
lllt.1l 11* |4
1 1 1
1 1 1
1 1 1
II X 1
1 1 1
II XI
II XI
1 1 1
AL8AL
uNirs
%C PER ML
1 X
B.3I 01075
«.ll 01191
1
|
5.01 00655
1
0.31 10
1 X
1 X
1 X
1
1 X
75,11 09135
1.3) 160
1 X
0,!| 00110
1 X
1
1 X
1
1 X
1 X
1
s
J
1
1
4
%C
1.4
1.4
19.9
30.0
10.0
30.0
1.4
ALCIL
UNITS
PER ML
X
19
X
19
214
112
5»
X
X
112
19
714
1104S
Sit
24
-------
LAKE NAMEl UPPER PAHRANAGAT LAKE
STORE! NUMBER I 3207
NYGAARD TROPHIC STATE INDICES
DATE 05 06 75 08 21 75 11 21 75
MYXOPHYCEAN
CHLOROPKYCEAN
EUCLENOPHYTE
DIATOM
COMPOUND
0/0 D
04/0 E
0.25 E
0/03 7
05/0 E
03/0 E
13/0 E
0,25 E
0,14 ?
22/0 E
3.00 C
1.00 E
0.40 E
0.12 ?
9.00 E
PALMER'S ORGANIC POLLUTION INDICES
DATE 05 06 75 08 31 75 11 21 75
GENUS
SPECIES
02
03
15
05
12
02
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE
AVERAGE DIVERSITY
NUMBER OF TAXA
NUMBER OF SAMPLES COMPOSITED
MAXIMUM DIVERSITY MAXH
MINIMUM DIVERSITY MINH
TOTAL DIVERSITY
TOTAL NUMBER 0V INDIVIDUAI.S/ML
EVENNESS COMPONENT
RELATIVE; EVENNESS
MEAN NUMRER OF INDIVIDUALS/TAXA
NUMBER/ML OF MOST ABUNDANT TAXON
OS 06 75 08 21 75 11 21 75
H
S
M
XH
NH
D
N
J
RJ
L
K
2.1J
11.00
1.00
3.46
0.12
2017,11
947.00
0,«2
0.61
86.09
425.00
0.74
39.00
2.00
5,29
0.0?
30936.44
41906.00
0.14
0.14
1071.95
37634.00
3.85
28.00
2.00
4.81
0.1J
7623.75
5615.00
0.59
0.59
95.54
R99.00
25
-------
LAKE NAMEl UPPER PAHRANAGAT LAKE
BTORET NUMBERl 3107
TAX*
ACTINMTRUM HANTiBCHII
1, FLUVIATILC
A»K1STRODESMU8 fALCATUS
ANKIBTROPEBMUJ PALCATUR
V. HIRABILM
BOTRlfOCOCCUB IMUNIJ
CALONEIB AXPHI8BAENI
CERAT1UM HlRUNDtNCLtA
CCRATIUM HIRUNDINELIA
r. ruRcniDca
CHRUQMONAB T ACUIA
COCCONCIB
COSKAR1UM
CRUCIQCIIIA UUADKATA
enUCIGgftlt TETPAPEDIA
CRTPTOHONAB
CRTPTDMaNAS rRDBA
mrrTOMCNui MARBBONII
CYCLOTCLLk HENeCHINJAMA
CTLIHDROTHECI CRACILIB
CTMATOPLCURA II
CYMATOPLEUPA SOLE*
CTHBEI/LA
CTMBCLbA »PP.
DACTTLOCOCCUPilg
tPlTHENIA
CO»IINUI:O
OS Ot 78
01 21
II 21 H
OIPOSIQMA
MELOIIRA VIRIANI
xrniBHOptDiA MINIMA
HUOBtlCHA VIRIOII
MICROCTBTIB AkRUGINOHA
HICROCTBTIB INCIRTA
NAVICULA It
NATICULA I)
NITtKCHIA
NITtBCHIk BP*.
oacmiB
OBCItkAIORI*
PSDIHTRUH BCRYANUM
PCnilSTRUN DUPLEX
V. PtTICULATUX
PCNNATt DtATOHB
PHACU8 HELIKOIDtB
PINNULtRIA II
PfrtULARIA I]
OUADRICULA CHODATII
RHOICDBPHENII CURVATA
RHOPALODU CIBBA
KCENFOCBKUB lCUHTl.TU8
SCCNEDEIMUB OUACRICAUDA
ACHROEDERU ICTIfiERA
«?HAERaCT§TII BCHROETERI
KUF1RELLA
SUBISELLA OVALTB
BURTRELLA OVATA
BtNEORA ULNA
TCTRAtDRON HIHIMUN
T. BCMOBICULATUM
TCTRASTRUM GLAI>RUN
TRACHrLOHONAt
TRACHCLOM'JNA* OBLONO
V, AUBTHAIKA
TRACHtLOMPNAI TOLVOCINA
TOTAL
F'URM
COL
CCL
CEL
COL
CCL
CEL
CCL
CEL
CKt
CCb
CUL
COL
CCL
CCL
CEL
CEL
CCL
CCL
CCL
CCL
CCL
CCL
CEL
CET-
CEL
CtL
COL
CCL
COL
COL
CCL
CCL
cct
CCL
CCL
TIL
COL
COL
CCL
CEL
CCL
CEL
CCL
CCL
CEL
cor,
COL
COL
COL
CCL
COL
CCL
CCL
CEL
CCL
CCL
CCL
COL
CCL
CCL
CCL
ALGAL
UMITB
B %C PER MI.
I
a
t
i
i
«.»
44. »
11.1
«.»
30.1
1.9
6!
419
X
161
«S
X
196
11
X
X
X
ALGAL
UNITS
B %C PER ML
0.11 tl
0.9
0,6
O.J
i
41 1.1
1
1
>
1
s
3
J.I
»0.§
0.1
o.«
t.4
o.«
0,6
ill
X
X
X
X
X
J5J
X
«1
«M
X
f
X
X
946
X
X
11114
X
X
»J
JSI
X
161
as>
>
X
X
X
551
X
X
X
X
X
X
I
X
ALGAL
UKITB
B %C PER NL
9
1
4
1
t
O.I
V.9
S.I
l.»
1.7
0.*
O.t
11.1
I.I
a. i
o.»
11.1
1.1
1.1
11
114
X
111
111
X
X
4*
X
X
11
11
X
tai
X
311
«»
X
11
• »»
X
X
X
X
46
X
46
X
m «ito« j«7s
26
-------
LAKE NAMEl MASHOE LAKE
STORET NUMBER! 3200
NYGAARD TROPHIC STATE INDICES
DATE 03 17 75 06 27 75 11 11 75
MYXOPHYCEAN
CHLOROPHYCEAN
EUGLENOPHYTE
DIATOM
COMPOUND
1.00 G
2.00 E
0.67 E
0.23 ?
8,00 E
02/0 E
01/0 E
0.67 E
0.18 ?
07/0 E
0/0 0
01/0 E
0/01 T
0.90 E
06/0 E
PALMER'S ORGANIC POLLUTION INDICES
DATE 03 17 75 06 27 75 11 11 75
OENUS
SPECIES
01
00
07
00
01
00
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE
AVERAGE DIVERSITY
NUMBER OF TAXA
NUMBER OF SAMPLES COMPOSITED
MAXIMUM DIVERSITY MAXH
MINIMUM DIVERSITY MINH
TOTAL DIVERSITY
TOTAL NUMBER OF INDIVIDUALS/ML
EVENNESS COMPONENT
RELATIVE EVENNESS
MEAN NUMBER OF INDIVIDUALS/TAXA
NUMBER/ML OP MOST ABUNDANT TAXO*
01 17 75 06 27 75 11 11 75
H
S
M
XH
NH
D
N
J
RJ
I
K
1.69
25.00
3.00
4.«4
0.30
1716.12
908.00
0.41
0.37
36.32
474.00
2.59
19.00
3.00
4.25
0.13
4330.48
1672.00
0.61
0.60
68.00
859.00
2.39
16.00
3.00
4.00
0.11
4029,54
1686.00
0.60
0.59
105.38
881.00
27
-------
LAKE NAMEl KASHOE LAKE
RTORET NUMPERl JlOf
01 17 7S
0« J7 7S
11 II 7S
CHRDOMONAS T ACUTA
CL06TERIUM
coccnmis
cncroNcia PLACENTUH
COn.»8TRUM aPHAERICUM
CKmON(lNA« EPOSI
CrCLOTELLA
CYN«TOPtr.UHA
CYN8ILLA
DACtlLOCOCCOPaiE
rHTDMOHEIS UHNAT*
EPITHEMIA
EPITHEHI* II
rPITHENIk 12
KUNblll
SLOKOCAPaA
COHPHOKEMA
GOMPHOHEN* II
COMPHONEM1 t]
(JOIPHONRKA TP'IUCIT'JM
hANTZSCHIA
HAHTtSCHIl
WELOIIRA CPANULATA
HEL('8IRA OB»NUL»T»
T. A*CUSTI8»IMA
hELOBIPA ITALIC*
MELOBIRA VARIAWS
MICMOCtaTII IKCERTA
NAVICULA II
NAVlCUliA It
OOC1IT1*
FHICUI
PINIIULAItIA
BN01CD8PHENIA
BHOPALODI* SIBRA
8CNHOEDKRIA SET1CEPA
•1AUDONCI*
8TEPHANODI8CU8
RUP.1RELLA
SURIRELLA II
SURJPELLH CVkIA
SYNEDRA ULNA
TABtUiARlA rrXEITRATI
TRACHELOMnNA* OBLndttj;
T. AUmiUCA
TRkCHELOMCNlS YOLVOCI«»
TOTAL
FORM
CEb
CCL
CCL
C(t
cot
CEL
CEL
act
CEL
CEL
CEb
CEL
CEb
CEL
CEfc
CEL
CEb
COb
CEL
CCL
cet
CEt.
CEL
CEL
CEL
CEL
cei<
CEL
cab
CEL
CEL
CEL
COL
CEL
CEL
CCL
CEL
CCb
CKL
CEb
CEb
CEL
CCL
CEL
CEb
CEb
CEL
ALOAb
UNITS
« «C PER ML
SI t,7| 79
4
1
t
1
•.•>
11.7
SI. I
(.T
X
79
I
t
I
X
X
X
X
X
197
474
*
X
I
X
I
79
X
X
X
X
>
s
ALGAL
UH1IB
S »C PER ML
»
«
9
1
1
|
1
1
2.71 41
|
1,11 IIS
1
t
I X
1
1
1
1
1.71 45
i.il m
1
5.41 90
>.7| 45
1
1
1 X
1
1
1
1 X
1
SI. 41 154
1
1
1. 71 41
1
1 X
1
1
1
1.71 49
1 X
l.ll lit
1 X
I
|
1
|
2.71 4)
3.71 45
1
|
1 1 X
ALGAL
UNITS
8 1C PER ML
1
1
1
S
4
4.4
«.«
«.*
1.)
51,1
U.4
4.*
4.*
1.1
1.1
•n
X
X
X
us
X
119
X
11
1*1
J10
77
X
77
II
11
VOI I«7J UK
28
-------
LAKE NAMEl WILDHORSf; RES.
STORET NUMBER! 3209
NYGAARD TROPHIC STATE INDICES
DATE 05 30 75 06 01 75 It 06 75
MYXOPHYCEAN
CHLOROPHYCCAN
EUGLENOPHYTE
DIATOM
COMPOUND
03/0 E
01/0 E
0.90 E
0.14 T
07/0 E
04/0 E
0/0 0
0/04 1
0.11 7
05/0 E
02/0 E
01/0 C
0.33 C
0/02 ?
04/0 E
PALMER'S ORGANIC POLLUTION INDICES
DATE 05 30 75 08 01 75 11 06 75
GENUS
SPECIES
04
00
01
00
00
00
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE 05 30 75 08 01 75 11 06 75
AVERAGE DIVERSITY
NUMBER OF TAXA
NUMBER OF SAMPLES COMPOSITED
MAXIMUM DIVERSITY MAXH
MINIMUM DIVERSITY MINH
TOTAL DIVERSITY
TOTAL NUMBER OF INDIVIDUALS/ML
EVENNESS COMPONENT
RELATIVE EVENNESS
MEAN NUMBER OF INDIVIDUALS/TAX*
NUMBER/ML OF MOST ABUNDANT TAXON
H
S
n
XH
NH
D
H
J
RJ
L
K
o.to
16.00
5, CO
4.00
0.02
5863.00
9805. 00
0.15
0.15
612.61
B958.00
2.55
IS. 00
1.00
3.91
0.10
4365.60
1712.00
0,65
0.65
114.13
541,00
1.43
7.00
5.00
7.81
0.20
427.75
295.00
0,52
0.49
42.14
196.00
29
-------
LAKE lUNCl NILDHOMe RES.
STOURT NUPPERI J}0«
CONTINUED
OS JO 7S
01 01 71
11 0« 75
TAX*
APHANIZOMENON FLOS-AOUAE
APHANOTHECE
CENTHIC DIATON
CHfiODHONAS T ACUTA
ruccoNiia PEDICULUR
COCLOaPHAERIUM T
CRYPTOMONAa
CRIPTONUNAa EPOBA
C1HATOPLCUIU
CMBELLA
EPITHEXU TUROIOA
CilQLtNA ACUa
tUKUTIA PtCTINALIS
V. VENTRICOBA
rB»SILABH
FBAOILAPIt BRCViaiRIATI
FP.AOILABH BREVI9TRUTA
*. TMIGIBHA
ULOrOTRICKI* ECHtHULAT*
SOMPHONEMA
OMVUCEUM
MELUtlVA VARIANS
M«V1CULA KXIGUA
11TE8CHIA
flTZICHIA
PHORHIDIUH
MPHIDIOPSIS CtlKTATt
ICHROEOrRIA REflCCRl
SYHCRRA ULNA
THACKCLONuHA*
VOLVOCINA
V. PUNCTATA
TUtAL
FORM
flL
COL
CEt
CEL
EEL
CUL
CEI,
CEL
CEL
CEL
CEL
CEb
CEL
CEL
CEL
CEL
CCL
COL
CCL
CCL
Fit
CEL
CF.L
CEL
CEL
FIL
riL
CCL
CEL
CtL
CEL
CIL
CEL
a
i
i
i
4
S
%c
»!.«
I.I
4.S
0.'
0.4
0.4
1.1
ALGAL
UNITS
_PER HL
1951
121
I
X
X
444
I
• 1
40
40
III
X
I
I
X
X
«IOS
1
1
18
II
IJ
S
4
1
%C
MJ.»
1 '.1
S.J
3.*
2.6
3».0
)!.»
J.»
S.I
ALGAL
UNITS
PER ML
1 310
1 90
90
49
X
45
X
4««
S41
X
X
X
49
X
*0
till
I
1
1
4
1
1C
111. I
M.4
ii. a
11.1
ALCAb
UNITS
PER NL
1 31
196
X
X
11
X
1]
199
30
-------
LAKE NAME! WILSON SINK RES.
STORE! NUMBERS 3210
NYGAARD TROPHIC STATIC INDICES
DATE 05 31 75 08 01 79 11 06 75
MYXOPHYCEAN
CHLUROPHYCEAN
EUGLENOPHYTE
DIATOM
COMPOUND
01/0 E
0/0 0
1.00 E
0/06 T
02/0 E
01/0 E
03/0 E
0/04 7
0/0 ?
04/0 E
1.00 E
0.33 7
0.25 E
0/01 7
1.67 E
PALMERiS ORGANIC POLLUTION INDICES
DATE 05 31 75 08 01 75 It 06 75
GENUS
SPECIK8
05
01
00
00
OS
00
SPECIES DTVFRSITY AND ABUNDANCE INDICES
DATS
AVERAGE DIVERSITY H
MUMPER OF TAXA S
NUMBER OF SAMPLES COMPOSITED M
MAXIMUM DIVERSITY MAXH
MINIMUM DIVERSITY MINH
TOTAL DIVEPS1TY D
TOTAL NUMBER OF INDIVIDUALS/ML N
EVENNESS COMPONENT J
RELATIVE EVENNESS RJ
MEAN NUMBER OF INDIVIDUALS/TAXA L
NUMBER/ML OF MOST ABUNDANT TAXON K
05 31 75 08 01 75 11 06 75
1.47
10.00
1.00
3.32
0.05
3739.*8
3544.00
0.44
0.44
354.40
1609.00
1.66
7.00
1.00
2.81
0.16
*27.4B
378.00
0.59
0.57
54.00
210.00
2.57
19.00
3.00
4.25
0.14
4055.46
1578.00
0.60
0.60
83.05
446.00
31
-------
LUKE KkMCl NIb»ON Bid* RES.
STOBtT *UMBER! 1910
Tilt I.
AKAMEIU
COHTINUtD
OS 11 7!
01 01
II Oft If
C!P*TIUM
CHROONOH»B J
coccoofis FLACEKTULII
CQCL*BTAUN HICROPORHM
CHTfTUHnNJtB EHClfll
CWTOMONt*
fPITHINJ*
tuairm
OLIVACEUM
CITHNODtNlVM
MOUCtOTH
HITHCHU II
KITZ«CHI« 13
OPEPHOBJ
D«CILL»TOPH
rEMHIlIE DUTCiN
RHOP*LODI« OJBB*
RCCHtDCRMUE
SCH^OtDlRH SID CEO*
ETAUIU4TRUM
CTNEDRI UbH*
TETRkLUHOH HI»|NUN
IT.
TOT»L
uw*
riL
riL
CEL
CCL
ceL
CCL
CDL
cei.
CCL
CCL
CCL
CCL
CCL
CCL
CEL
CCL
EEL
CCL
riL
CEL
CCL
CEL
riL
CCL
CCL
COL
CCL
CCL
11 PI Its
i %C 9f.r. *u
1
I
I
4
CIL 13
I
CIL 1
94.!
«>.}
4.1
(.1
1.0
tit
t A 0 9
X
X
X
104
1!*
X
X
S3
ALGAL
uxm
s v: PER «u
3
1
«
S!,6
13.1
U.I
1
t
110
14
43
X
1111 1.1 1 41
AL7AL
.UNITS
• v: fen «L
1 1 X
11 t.ll 117
1 1
4121,71 141
t 1 X
81 t.SI 101
I
1
1 X
1.11 14
4.4
11.4
4.4
?».>
X
X
X
>v
X
J77
X
44t
X
X
X
3S44 JTI 1911
32
-------
LAKE NAMEl WALKER LAKE
STORET NUMBEVtl 3211
NYGAARD TROPHIC STATE INDICES
DATE 03 17 75 07 11 75 11 06 75
MYXQPHYCEAN
CHLOROPHYCEAN
EUGLENOPHYTC
DIATOM
COMPOUND
0/0 0
01/0 E
0/01 ?
0/01 7
01/0 E
02/0 E
0/0 0
0/02 T
0/0 ?
02/0 E
0/01 0
0/01 0
0/0 T
0/01 I
0/01 0
PALMER'S ORGANIC POLLUTION INDICES
DATE 03 17 75 07 11 75 11 06 75
GENUS
SPECIES
00
00
00
00
00
00
SPECIES DIVERSITY AND ABUNDANCE INDICES
DATE 03 17 75 07 11 75 11 06 75
AVERAGE DIVERSITY H 1.34 0.01 0,03
NUMBER OF TAX* 8 9.00 2.00 2.00
NUMBER OF SAMPLES COMPOSITED M 3.00 3.00 3,00
MAXIMUM DIVERSITY MAXH 1.58 1.00 1.00
MINIMUM DIVERSITY MINK 0,29 0.44 0,93
TOTAL DIVERSITY 0 64.32 0.10 0.09
TOTAL NUMBER OF INDIVIDUAIS/ML N 48.00 10.00 1.00
EVENNESS COMPONENT J 0.85 0,01 O.OJ
RELATIVE KVCNNCSS RJ 0.82 -0.76 -1.06
MEAN NUMBER Of INDIVIDUALS/TAXA L 16,00 9.00 1,90
NUMBER/ML Of MOST ABUNDANT TAXON K 27,00 10.00 3.00
33
-------
LAKE IUMCI KALKCR LAKE
STORIT KUHOfRt lilt
TAXA
CHKOOCOCCUR
CHRUOMOflAS 1
NAVICULA
NODULARIA
PEHNATt DIATOM
STAURA1TRUN
TRTRACDBON MINtKIIM
TOTAL
CONTINUBO
01
75
01 It IS
It 0« 75
TORN
COb
cr.L
CEL
riL
CKb
CCL
CEL
ALGAL
UNITS
S %C PER HL
1 1
IJJ.M U
1 1
1 1
18*. Jl 17
1 1
110.41 5
41
t
1C
100.
ALQAL
UNIT!
PER ML
to
X
10
8
tc
too.
ALGAL
UNITS
PCM ML
1
X
3
34
-------
TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing]
. REPORT NO.
EPA-600/3-79-117
2.
3. RECIPIENT'S ACCESSION NO.
. TITLE AND SUBTITLE
DISTRIBUTION OF PHYTOPLANKTON IN NEVADA LAKES
5. REPORT DATE. __.
December 1979
6. PERFORMING ORGANIZATION CODE
V^YTambou, F.A. Morris, M.K. Morris, W.D. Taylor,
L.R. Williams, and S.C. Hern
8. PERFORMING ORGANIZATION REPORT NO.
. PERFORMING ORGANIZATION NAME AND ADDRESS
Environmental Monitoring and Support Laboratory
Office of Research and Development
U.S. Environmental Protection Agency
Las Vegas, NV 89114
10. PROGRAM ELEMENT NO.
1BD884
11. CONTRACT/GRANT NO.
2. SPONSORING AGENCY NAME AND ADDRESS
U.S. Environmental Protection Agency-Las Vegas, NV
Office of Research and Development
Environmental Monitoring and Support Laboratory
Las Vegas, NV 89114
13. TYPE OF REPORT AND PERIOD COVERED
02-21-75 to 12-11-75
14. SPONSORING AGENCY CODE
EPA/600/07
5. SUPPLEMENTARY NOTES
6. ABSTRACT
This is a data report presenting the species and abundance of phytoplankton
in the 10 lakes sampled by the National Eutrophication Survey in the State of
Nevada. Results from the calculation of several water quality indices are also
included (Nygaard's Trophic State Index, Palmer's Organic Pollution Index, and
species diversity and abundance indices).
KEY WORDS AND DOCUMENT ANALYSIS
DESCRIPTORS
b.lDENTIFIERS/OPEN ENDEDTERMS
COSATI Field/Group
*aquatic microbiology
lakes
*phytoplankton
water quality
Nevada
lake eutrophication
Nygaard's trophic indices
Palmer's organic pollu-
tion indices
Species diversity and
abundance
06 C, M
08 H
13 B
18. DISTRIBUTION STATEMENT
RELEASE TO PUBLIC
19. SECURITY CLASS (This Report)
21. NO. OF PAGES
UNCLASSIFIED
42
WEXSYrftif
,SS (This page)
22. PRICE
EPA Form 2220-1 (Rev. 4-77) PREVIOUS EDITION is OBSOLETE
ft U.S. GOVERNMENT PRINTING OFFICE: 1979—583-282/2220
------- |