United States
              Environmental Protection
              Agency
             Great Lakes National
             Program Office
             536 South Clark Street
             Chicago, Illinois 60605
EPA-905/3-84-005
February 1984
&EPA
Bioaccumulation of
Toxic Substances
Associated with
Dredging and
Dredged  Material
Disposal
                            Do not WEED. This document
                            should be retained in the EPA
                            Region 5 Library Collection.

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                                                  EPA-905/3-84-On5
                                                  February 1984
BIOACCUMIJLATION OF TOXIC SUBSTANCES ASSOCIATED WITH
       DREDGING AND DREDGED MATERIAL DISPOSAL
                A LITERATURE REVIEW
                         by
         James G. Seelye and Michael  J. Mac
           Great Lakes Fishery Laboratory
             Ann Arbor, Michigan 48105
                    Final  Report
                     March 1983
       Interaaency Aqreement AD-14-F-1-529-9


                  Proiect Officer
                 Anthony Kizlauskas
               Remedial  Program Staff
        U.S. Environmental Protection Agency
        GREAT LAKES NATIONAL PROGRAM OFFICE
        U.S. ENVIRONMENTAL PROTECTION AGENCY
          536 SOUTH CLARK STREET, ROOM 958
              CHICAGO, ILLINOIS 60605
               VA. Cn
               TTWest Jaefcsw ioutevafd,
               Chicago, II 60604-3590

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                               DISCLAIMER

     This report has been reviewed by the Great Lakes National Program
Office, U.S. Environmental Protection Agency, and approved for publication.
Approval does not signify that the contents necessarily reflect the views
and policies of the U.S. Environmental Protection Agency, nor does mention of
trade names or commercial products constitute endorsement or recommendation
for use.
                                        ii

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                                  FOREWORD


The Great Lakes National Program Office (GLNPO) of the United States Enviro-
nmental Protection Agency was established in Region V, Chicago, to focus
attention on the significant and complex natural resource represented by the
Great Lakes.

GLNPO implements a multi-media environmental management program drawing on
a wide range of expertise represented by universities, private firms, State,
Federal, and Canadian governmental agencies, and the International Joint
Commission.  The goal of the GLNPO program is to develop programs, practices
and technology necessary for a better understanding of the Great Lakes Basin
ecosystem and to eliminate or reduce to the maximum extent practicable the
discharge of pollutants into the Great Lakes system.  GLNPO also coordinates
U.S. actions in fulfillment of the Great Lakes Water Quality Agreement of
1978 between Canada and the United States of America.
                                     111

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                         CONTENTS




Introduction  	  1




Summary  	  2




Conclusions and Recommendations  	  4




Appendices




     A.  Literature Review  	  8




     B.  Subject Index  	 41




     C.  Author Index  	 43
                            IV

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                             ACKNOWLEDGEMENT

     The authors acknowledge the technical assistance of C.C. Edsall and
C.A. McCauley in the completion of this work.  We also acknowledge the
clerical assistance provided by C. Van Cleve.  This work was supported in
part by the U.S. Environmental Protection Agency, Great Lakes National Program
Office under Interagency Agreement AD-1M--F-2-529-0 with the U.S. Fish and
Wildlife Service, Great Lakes Fishery Laboratory.

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                                   SECTION 1

                                 INTRODUCTION

     The annual movement of over 10 million cubic meters  of  sediment by
dredging activities in the Great Lakes is potentially harmful to the biota of
the Great Lakes, not only due to the physical disruption  of  the  habitat
associated with dredging and dredged material disposal, operation, but also the
relocation and resuspension of sediments often contaminated  with toxic organic
and inorganic chemicals.  Current regulations regarding approval for dredging
activities require measurement of contaminant levels  in the  sediment and
comparison of those levels with established criteria. These criteria need to
be correlated with bioavailability and toxic effects  of the  chemicals.  To
date, however, no broadly applicable correlations have been  defined.  The lack
of a definable relationship between levels of chemicals in the sediment and
bioavailability of the chemicals has led to the proposal  that bioassessment
tests (including toxicity and bioaccumulation) be conducted  for  all  proposed
dredging operations; in fact, such procedures are currently  being used for
ocean dumping of dredged material.  Laboratory studies have  shown the potential
bioavailability of both organic and inorganic contaminants from  resuspended
sediments, but the procedures used for bioaccumulation studies vary  widely and
little information is available relating the accumulation of contaminants by
organisms to overall effects on the ecosystem.

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                                   SECTION 2

                                    SUMMARY

     Because of our interest in developing methods for testing the
bioavailability of contaminants, particular attention was given to laboratory
tests that measure bioaccumulation of toxic substances from sediment.   Many
of these laboratory tests demonstrated the capability of  aquatic organisms
to accumulate toxic substances from sediment (3,  17,  22,  32,  53, 59, 64,
66, 68, 83, 85, 106);  however, the precise extent to  which this accumulation
can occur remains unclear.  Reported bioconcentration factors

(BCF = concentrat±on i-n organisms   Qr  concentration in  organisms
       concentration in sediment        concentration in  water

depending on test) have been quite variable and are often confusing due to
differences in measurement technique.  Results of contaminant analysis  of
sediments and organisms are either reported as wet weight or as dry weight
concentrations.  Due to the differing amounts of  water that occurs in sediments
and aquatic organisms, resulting BCPs can vary severalfold depending on the
basis used for calculation.  Routine reporting of contaminant levels in
sediments and organisms as dry weight concentrations  and  calculation of
resulting BCFs based on dry weight concentrations would eliminate the influence
of water content and reduce the variability in reported BCFs.

     An additional problem in interpreting the literature is  that application
of a BCF in bioaccumulation tests is not always indicative of the true
accumulation potential.  For example, tests with  highly contaminated sediment
(thus resulting in a large denominator in the BCF equation)  may yield a low  BCF
even though statistically significant contaminant accumulation is occurring  in
the organism.  Reported BCFs of less than one are therefore common in the
literature even though bioaccumulation occurred in the test organism.   Defining

          /concentration in organisms      „, .        ,
the ratio v	' as a  bioaccumulation factor"
           concentration in sediment

(BAF) rather than as a BCF (79, 106) improves the semantics  of the problem,  but
the ultimate solution to the problem appears to involve using bioaccumulation
tests that compare accumulation between organisms exposed to test sediment and
organisms exposed to a control and/or reference sediment. This method of
testing and reporting should produce results that have improved interpretative
value in determining whether contaminants in test sediments are available for
accumulation and, through proper selection of reference sediments,  whether such
accumulation would be expected to exceed "background  levels"  at specific study
sites.

     The majority of available literature describing  bioaccumulation of
contaminants is directed at organic compounds such as polychlorinated biphenyls
(PCBs).  Research on the bioaccumulation of metals from sediments,  particularly
in freshwater systems, is rather limited and the  results  tend to be
conflicting.  The difficulty in differentiating between normal background
levels of metals in aquatic organisms (which can  be quite variable) and

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"contaminated" levels of metals further complicates the interpretation of
results.  Neff et al. (63) looked at accumulation of 10 metals using five
different species of test organisms and observed statistically significant
uptake in 25% of the tests.  Seelye et al. (83)  reported that perch accumulated
Pe, As, Cr, Na, Hg, Zn,  Cs, and Se from naturally contaminated sediments.
However, Sherwood (85) exposed fish to contaminated sediments and  observed no
accumulation of metals,  although PCS and DDT uptake did occur.  Apparently,  the
bioavaliability of metals from sediments is significantly influenced by several
physical and chemical conditions in the sediments and water (86).

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                                   SECTION 3

                        CONCLUSIONS AND RECOMMENDATIONS

     Based on our review of the literature, along  with our personal experience
with bioassessment tests and that of investigators at  other  research
organizations with whom we have discussed the subject, we offer the following
conclusions and recommendations for consideration  in the development of
standardized tests of toxicity and bioaccumulation.  In so doing, we recognize
that several tests currently employed by various organizations were not
intended to measure bioaccumulation but instead emphasize acute toxicity.  We
further recognize that it may not be possible to develop a single standardized
test applicable to all conditions and information  needs.  Nevertheless, we
offer the following recommendations for developing more standardized and
ecologically sound test procedures for evaluating  sediment quality.

1.  Static tests should be avoided.  Mortality to  test organisms has been
    attributed to low dissolved oxygen conditions  during static tests, a
    condition that may not occur in field situations.

2.  Elutriate testing appears to be of questionable value in evaluating
    sediment quality because few correlations have been measured between the
    toxicity of the sediments and results of  elutriate tests.  In addition, the
    elutriate test was designed to provide information on potential "water
    column effects" of dredged material disposal,  however, the literature we
    reviewed did not identify any substantial irreversible effects of  dredged
    material disposal on planktonic organisms at the disposal site.

3.  Toxicity tests on the dissolved or suspended particulate phases of dredged
    material appear to be of questionable value due to the lack of serious
    "water column effects" as stated in 2. above.   The results of acute
    toxicity tests on these phases exhibit poor precision in general,  with high
    mortality to control organisms being reported.  As a result, only  extremely
    high mortality to the exposed organisms will be significantly different
    from controls.

4.  In bioaccumulation studies, steady state  concentrations  have rarely been
    attained in less than 30 days.  However,  it may not be necessary to attain
    steady state to show bioaccumulation potential. Therefore, we recommend
    that the 10-day period be used as recommended  in the  EPA/COE  Implementation
    Manual.

5.  Whole sediment (unaltered dredged material) bioassays generally show  low
    toxicity to benthic invertebrates and fish when exposures are  10 days or
    less.  However, longer exposures (20-50 days)  have resulted in mortality  of
    benthic organisms approaching 50 percent.  Use of  whole  sediment allows
    simultaneous collection of data on toxicity and bioaccumulation of
    contaminants by organisms, potentially reducing the  number  of  tests
    required and therefore the total cost.

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 6.  Availability of contaminants is  greatly  affected by physical
     characteristics of sediments such  as particle size, distribution, total
     organic carbon, and mineral composition.   Because the relationship between
     the physical and chemical characteristics  of the sediment and
     bioavaliability of contaminants  is not well defined, a site by site
     evaluation of sediment quality is  necessary except where contaminant levels
     are very low.

 7.  Contaminant concentrations based on dry  weight should be used to calculate
     bioconcentration factors (BCFs)  and bioaccumulation factors (BAFs) in order
     to eliminate the influence of variable and/or changing water content in the
     sediments and the organisms.

 8.  Bioaccumulation studies should emphasize comparing the accumulation (either
     as a rate or as total accumulation) among  organisms exposed to test
     sediments and organisms exposed  to a control and/or reference sediment
     rather than relying on a BCF or  BAF calculated from exposure in the test
     sediment.

 9.  Some sublethal test parameters found in  the dredging literature that show
     promise as tools for evaluating  dredged  material includes  invertebrate
     reproductive success,  growth abnormalities and pathology, avoidance
     behavior, invertebrate metabolic rate  and  swimming rate, and changes in
     enzyme activity (e.g., catylase).

10.  Toxicity data from sediment bioassays  using recirculating or static water
     conditions are less precise than data  collected using flow-through bioassay
     systems. .Therefore,  the use of  flow-through systems for both toxicity and
     bioaccumulation studies is recommended.

11.  Organisms (including fish) allowed direct  contact with sediments accumulate
     more contaminants than organisms not allowed direct contact with sediments.
     Therefore,  exposure procedures that include provisions for contact between
     test organisms and both bedded and resuspended sediments would simulate
     worst-case conditions both at the  dredging site and at the disposal site.

12.  Bioassays conducted for ocean dumping  of sediments currently must be
     conducted according to the methods described in EPA/CE Technical Committee,
     1977 (Reference number 101 in Appendix A). Basically the protocol
     described in this manual includes  three  test procedures for laboratory
     bioassays:   1) acute toxicity test using elutriate water, 2) acute toxicity
     test using suspended particulate material  from sediment; and 3) solid-phase
     bioassay, including a 10-day exposure  of organisms to sediment with
     measurements of survival and bioaccumulation.  The New York District of the
     Corps of Engineers has reported  over 100 of these tests.  Results from the
     static, acute-toxicity tests (procedure  1  and 2 above) were so variable
     that the personnel at the District have recommended eliminating these two
     procedures.  Based on published  results of toxicity tests we agree with
     this recommendation.   In addition,  solid-phase testing should be referred
     to as whole-sediment testing to  insure that the fine sediment particles are
     not removed before the tests are conducted.

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     In summary, we recommend that:  1) A stronger link must be established
between results of laboratory bioassessment tests and conditions at dredging
and disposal sites.  Results of laboratory bioaccumulation tests must be
evaluated by comparisons with data obtained from organisms that were collected
from the dredging and the disposal sites.  2) Since bioassessment procedures
currently approved for use in regulating dredging include only measurements of
toxicity (mortality) and/or bioaccumulation of toxic substances,  we believe
chronic bioassay tests should be developed for use in assessing sediment
quality.  3) We recommend that work continue towards development of a single,
standardized procedure for testing sediment quality.  This procedure should
include both measurements of toxicity and bioaccumulation in a flowing-water
exposure system using more than one species of aquatic organism.   Because the
uptake of organic contaminants and metals is usually most rapid in benthic
invertebrates that live in the sediments and are deposit feeders,  we recommend
use of such an organism.  In addition to direct accumulation of contaminants,
such as would take place in the benthic invertebrates, we believe that fish
would provide an estimate of the relative amount of contaminant that may be
released from the sediment and thus become available (either directly or
indirectly) to the biota.  When feasible, the procedure should include a
species of fish that is ubiquitous in the watershed under consideration and
known to feed, at least in part,  on benthic invertebrates.  The bioassays
should be conducted with dredged material that is unaltered after collection
from the area to be dredged.  The organisms should be exposed to  the sediments
for 10 days or more under flowing water conditions.  The presence of suspended
solids in the test tanks would provide conditions similar to those at the
dredging and disposal site during the actual dredging activity.  The value of
adding suspended solids during the exposure,  though,  must be tested before a
recommendation can be made.

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APPENDIX A

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1.  Armstrong,  D.  E.,  J.  J.  Perry,  and D.  E.  Flatness.   1979.  Availability
    of Pollutants  Associated with Suspended or  Settled River Sediments Which
    Gain Access to the Great Lakes.   EPA-905/4-79-028, U.S. Environmental
    Protection  Agency.  102  pp.

    Samples of  suspended  sediment from 5 Great  Lakes rivers were collected
    and analyzed for  total and available concentrations  of Cu, Pb, and Zn.
    Two methods were  used for measuring available metals:  a hydroxylamine
    hydrochloride  extraction, and a resin  desorption.  Available metals
    usually ranged between 25-45% of the total  metals; however, in highly
    polluted samples  (Menominee  River), as much as  76% of the total metal
    concentration  was  estimated  to be biologically  available.

2.  Auld,  A. H., and  J. R» Schubel.   1978. Effects of Suspended Sediment on
    Fish Eggs and  Larvae: A Laboratory Assessment.  Estuarine Coastal Mar.
    Sci.,  6:153-164.

    "Eggs  and larvae  of 6 species of anadromous and estuarine fish indigenous
    to the Chesapeake  Bay were exposed to  concentrations of suspended
    sediment ranging  from a  few  mg 1-1  to  1000  mg 1-1 to determine the
    effects of  different  concentrations on hatching success and short term
    survival.  The egg experiments indicated  that concentrations of up to
    1000 mg 1"1 did not significantly affect  the hatching success of yellow
    perch, blueback herring, alewife or American shad eggs.  Concentrations
    of 1000 mg  1"1  significantly reduced  (P<0.05) the hatching success of
    white perch and striped  bass,  but lower concentrations did not.

    Experiments with  larvae  indicated that concentrations of >_ 500 mg 1~1
    significantly  reduced (P<0.05)  the survival of  striped and yellow perch
    larvae exposed for 48-96 h.   American  shad  larvae appeared to be less
    tolerant than  the other  two  species tested. Concentrations > 100 mg 1~1
    significantly  reduced the survival of  shad  larvae continuously exposed
    for 96 h.

    The significance  of these results are  discussed relative to natural and
    man-induced changes in sediment loading of  estuaries."  (author abstract)

3.  Bahnick, D. A., W. A. Swenson,  T. P. Markee, D. J. Call, C. A. Anderson,
    and R. T. Morris.   1981.  Development  of  Bioassay Procedures for Defining
    Pollution of Harbor Sediments.   Part I.   CLSES  Contract Publication No.
    56.  Center for Lake  Superior Environmental Studies, University of
    Wisconsin,  Superior.

    Laboratory  studies were  conducted measuring toxicity and bioaccumulation,
    including measurements of acute toxicity  tests  using Daphnia magna, cough
    frequencies using bluegills, and bioaccumulation potential using
    Hexagenia limbata and chironomids. Metals, PCBs, PAHs, and DDT were
    measured in sediment and tissue samples and sediments were screened for
    organic contaminants  using liquid chromatography procedures.  Acute
    toxicity tests and bioaccumulation tests  were conducted for 96 hours
    using either static or recirculating test conditions.  Test results for
    the 96-hour toxicity  test were variable and few differences were measured

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    between exposed and control organism survival.   There were a  few
    correlations between survival and chemical content of the sediments,  but
    no consistent correlations were found between different organisms.  The
    authors state that results of the acute toxicity tests showed sediments
    from more industrialized areas were more toxic  than were those from less
    industrialized areas.

4.  Beasley, T. M., and S. W. Fowler.  1976.  Plutonium and Americium:
    Uptake from Contaminated Sediments by the Polychaete Nereis diversicolor.
    Mar. Biol., 38:95-100.

    The polychaete Nereis diversicolor was exposed  in the laboratory to
    sediments naturally contaminated with plutonium and americium.  Sediments
    collected near the Marshall Islands were contaminated by an atomic test
    and sediments collected from the Irish sea were contaminated  from a
    nuclear fuel reprocessing plant.  Sediments were vigorously rinsed with
    clean sea water prior to introduction of the polychaetes.   Worms
    accumulated about 0.5% of the sediment concentration of both  elements
    with a preference for plutonium.  Tests were run for 40 and 225 days.

5.  Birge, W. J., J. A. Black, A. G. Westerman,  P.  C. Francis,  and J. E.
    Hudson.  1977.  Embryopathic Effects of Waterborne and Sediment-
    Accumulated Cadmium,  Mercury, and Zinc on Reproduction and Survival of
    Fish and Amphibian Populations in Kentucky.   Res. Rep. No.  100,
    University of Kentucky Water Resources Research Institute,  January 1977.
    28 pp.

    Laboratory experiments were conducted to test the effects  of  contaminated
    sediments on successful hatching of eggs of rainbow trout,  goldfish,  and
    narrow-mouthed toad.   Both contaminated and clean sediments were
    collected from the Kentucky River system and clean sediments  were spiked
    with varying levels of Hg, Cd, or Zn.  Eyed rainbow trout  eggs and newly
    fertilized goldfish and toad eggs were hatched  in-a static bioassay
    system with sediment and clean water.  Reduced  survival to hatching and
    four days post-hatch was observed in all species at the lowest metal
    concentrations tested:  0.15, 1.34, and 104.6 yg/g for Hg,  Cd,  and Zn,
    respectively.

6.  Bissonnette,  P.  1977.  Extent of Mercury and Lead Uptake  from Lake
    Sediments by Chironomids.  In:  Biological Implications of  Metals in  the
    Environment,  Energy Research and Development Administration,  June 1977.
    pp. 609-622.   (available fromNTIS).

    Samples of sediments  and chironomids were collected monthly for one year
    from four freshwater  lakes in western Washington and analyzed for mercury
    and lead.  Chironomids accumulated both metals  to higher levels  than  the
    surrounding sediment for both metals.  No direct correlation  was
    observed, however,  between metal concentrations in sediments  and
    organisms.

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7.  Boddington,  M. J., A. S.  W.  DeFreitas,  and  D.  R. Miller.  1979.  The
    Effect of Benthic Invertebrates  on the  Clearance of Mercury from
    Sediments.  Ecotox. and Environ. Safety,  3:236-244.

    Tubificid worms were capable of  removing  mercury from artificially spiked
    (Hg) freshwater sediments in a laboratory study.  The rate of mercury
    loss from sediments was dependent on worm density.

8.  Brannon,  J.  M.  1978.  Evaluation of Dredged Material Pollution
    Potential.  Tech. Rep. DS-78-6,  U.S. Army Engineers Waterways Experiment
    Station,  Vicksburg, Mississippi,  August 1978.   39 pp.

    This report summarizes the results of seven Dredged Material Research
    Program (DMRP) reports.  Five of these  reports are reviewed separately in
    the bibliography.  The author's  conclusions for this synthesis report are
    as follows:

    "The short term impact of dredged material  on  water quality and aquatic
    organisms is related to the  concentration of chemically mobile, readily
    available contaminants rather than the  total concentration.  .. .The short
    term chemical and biological impacts of dredging and disposal have
    generally been minimal.

    Longer term  impacts of dredged material on  water quality have generally
    been slight and can be evaluated by means of the Elutriate Test and
    analysis  of  the mobile forms of  sediment  contaminants.  No significantly
    long term increase in water  column contaminant concentrations has been
    observed  at any aquatic disposal field  site.   The greatest hazard of
    dredged material disposal is the potential  effect of the material on
    benthic organisms."  (author abstract)

9.  Brannon,  J.  M., R. M. Engler, J. R. Rose, P. G. Hunt, and I. Smith.
    1976.  Selective Analytical  Partitioning  of Sediments to Evaluate
    Potential Mobility of Chemical Constituents During Dredging and Disposal
    Operations.   Tech. Rep. 76-7, U.S. Army Engineers Waterways Experiment
    Station,  Vicksburg, Mississippi,  December 1976. 176 pp.

    Chemical  analyses were performed on sediments  collected from freshwater
    (Ohio), estuarine (Alabama), and saltwater  (Connecticut) environments.
    Sediments were divided into  several phases; those dissolved:  1) in
    interstitial water, 2) adsorbed  on sediment (exchangeable), 3) occluded
    or co-precipitated with iron and manganese  oxide and hydroxide partitions
    (easily reducible), 4) bound in  organic matter and precipitated as
    sulfide salts (organic and sulfide), and  5) found in the mineral
    crystalline  lattice (residual).   Standard elutriate tests were also
    performed.  No correlation was observed between total metal content of
    sediment and metal concentrations in the  standard elutriate.
    Correlations were observed,  however, between metal and nutrient
    concentrations in the elutriate  and their concentrations in the first
    three sediment phases. These three phases  are thought to be the most
    mobile in the environment.
                                    10

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10.  Brewer,  G.  D.   1976.   Resuspended Sediment Elutriate  Studies on the
     Northern Anchovy.   In:   Marine Studies  of  San  Pedro Bay, California.
     Part 11, Potential Effects on the Biota of Outer Los  Angeles Harbor,
     Toxicity Bioassay  and Recolonization Studies,  D. F. Soule and M. Oguri,
     eds.  University of Southern California, Office of Sea Grant Programs,
     Allen Hancock  Foundation,  Harbor  Environmental Projects,  pp. 15-32.

     "Samples of sediment  from  three locations  in the Los  Angeles-Long Beach
     Harbors  and elutriates resulting  from resuspension were assayed for heavy
     metals,  pesticides, and other pollutants.   Juvenile and adult northern
     anchovy  (Engraulis mordax) were exposed to sediment elutriates prepared
     from seawater-sediment ratios between 4:1  and  100:1 for periods up to
     fourteen days.  Toxicity varied between the three sediment samples; acute
     oxygen depletion was  suspected as the cause of mortality.  Analyses of
     muscle,  gonad, gill,  and liver tissues  for silver, cadmium, chromium,
     copper,  iron,  manganese, nickel,  lead and  zinc from control and
     elutriate-exposed  fish showed high levels  of cadmium  and zinc in fish
     exposed  to  the resuspended sediments.  However, the small sample size
     precludes any  conclusions  regarding the rapid  uptake  of heavy metals.
     Sediment elutriate which had been stored for two weeks was not toxic to
     anchovy  embryos and larvae."  (author abstract)

11.  Bryan, G. W.,  and  L.  G. Hummerstone. 1971. Adaptation of the Polychaete
     Nereis diversicolor to Estuarine  Sediments Containing High Concentrations
     of Heavy Metals:  I.  General Observations  and  Adaptation to Copper.  J.
     Mar. Biol.  Assoc.  U.  K., 51:845-863.

     Sediments and  polychaetes  collected from estuaries in southwest England
     and varying in the amount  of copper pollution  were analyzed for copper.
     Results  showed a correlation in copper  concentration  between sediment and
     worms (after gut clearance).  Toxicity  testing showed worms in highly
     polluted sediments developed a resistance  to copper.

12.  Buikema, A. L., Jr.,  C. L. Rutherford,  and J.  Cairns, Jr.  1980.
     Screening Sediments for Potential Toxicity by  In Vitro Enzyme Inhibition.
     In:  Contaminants  and Sediments,  Vol. 1,   R. A. Baker, ed.  Ann Arbor
     Sciences, Ann  Arbor,  Michigan, pp. 463-476.

     Laboratory  bioassays  were  conducted with Dapnia magna and Hexagenia
     limbata  under  static-conditions in which Daphnia were suspended over
     sediments in beakers  and Hexagenia nymphs  were allowed to burrow into the
     sediments.   Tests  were conducted  for 24 to 96  hours using sediments from
     seven locations in Lake Superior  near Duluth,  Minnesota.  In vitro enzyme
     tests with  four enzymes were also conducted.   Toxicity and enzyme
     activities  were measured using treated  (chemically leached) and untreated
     sediments containing  elevated levels of metals.  Correlations were
     examined for sediment particle size, toxicity, and enzyme activity.
     Results  show a negative correlation between metal content of sediment and
     particle size  and  also between percent  inhibition of  catalase activity
     and particle size. Correlations  between percent survival of Daphnia or
     Hexagenia and  sediment particle size show  that fine sediments were
     lethal,  independent of their metal content.
                                     11

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13.  Canter,  L.  W., E.  H.  Klehr,  J.  W.  Laguros,  L.  E.  Streebin, G. D. Miller,
     and D. R. Cornell.  1977.   An Assessment of Problems  Associated with
     Evaluating  the Physical, Chemical  and Biological  Impacts of Discharging
     Fill Material.  Tech. Rep.  D-77-29,  U.S. Army  Engineers Waterways
     Experiment Station, Vicksburg,  Mississippi,  December  1977.  236 pp.

     "...This study focused on problems associated  with  evaluating
     environmental changes resulting from fill material  discharges.  A
     weighted-rankings  technique was used to  established priorities of
     permitting  (administrative)  concerns and technical  deficiencies...

     A literature survey was conducted  to determine technical deficiencies.
     Potential physical impacts  found include changes  in infiltration and flow
     regimes, destruction/alteration of natural  or  man-made habitats, and
     creation of habitats.  Chemical impacts  were found  to result from the
     release  of  suspended  solids,  organics, nutrients, and toxic substances.
     Biological  impacts ranged from  physical  barriers  to fish migration to
     complete "smothering" of entire wetland  areas. The effects of leachates
     on aquatic  biota were found to  be  complex and  diverse, ranging from no
     measurable  changes to acute toxicity. Technical  research needs
     identified  in decreasing priority  include studies on  impact
     quantification and modeling,  verification of predicted long-term impacts,
     basic chemical and biological interactions  and effects, applicability of
     dredged  material disposal findings,  characterization  of wetlands, and
     magnitude of fill  discharge operations."  (author abstract)

14.  Cardwell, R. D., C. E. Woelke,  M.  I. Carr,  and E. W.  Sanborn.  1976.
     Sediment and Elutriate Toxicity to Oyster Larvae.   In:  Dredging and Its
     Environmental Effects, P. A.  Krenkel, J. Harrison,  and J. C. Burdick III,
     eds.  Amer. Soc. of Civil Engineers, New York, New  York.  pp. 684-718.

     Acute toxicity tests  were conducted  with oyster (Crassostrea gigas)
     embryos  (2  hours old) in the laboratory  using  sediments and elutriates
     from Grays  Harbor, Washington.   Deleterious effects were observed for
     natural  sediments  and sediment  homologues at less than 0.1 g dry wt/1;
     however, no toxicity  was observed  in elutriates diluted by 50%.
     Mortality was attributed to a combination of mechanical and chemical
     factors.

15.  Chamberlain, D. W.  1976.   Effects of Los Angeles Harbor Sediment
     Elutriate on the California Killifish Fundulus parvipinnis, and White
     Croaker, Genyonemus  lineatus.  In:  Marine  Studies  of San Pedro Bay,
     California.  Part  11, Potential Effects  on  the Biota  of Outer Los Angeles
     Harbor,  Toxicity,  Bioassay  and  Recolonization  Studies, D. F. Soule and M.
     Oguri, eds.  University of  Southern  California, Office of Sea Grant
     Programs, Allen Hancock Foundation,  Harbor  Environmental Projects,  pp.
     33-48.

     Static 96-h bioassays conducted in the laboratory with elutriates of
     sediments collected  from Los Angeles Harbor showed  no significant
     mortality to killifish or  croaker.  Croaker held  in elutriates for 28
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     days showed bioaccumulation of  some metals compared to control fish.
     Concentration of Zn,  Pb,  Cr,  and  Cd in  exposed fish were twice as high as
     those in control fish.

16.  Chu-Fa,  T., J. Welch, K.  Chang, J. Shaeffer, and L. E. Cronin.  1979.
     Bioassay of Baltimore Harbor Sediments.  Estuaries, 2(3):141-153.

     Laboratory  bioassays  were performed with two species of fish, mummichogs
     (Fundulus heteroclitus) and spot  (Leistomus xanthurus) and one mollusc
     (Mya arenaria),  which were exposed in static systems to a series of
     concentrations of suspended sediment for 48 hours.  Sediments were
     analyzed for Pb, Cr,  Zn,  Ca,  As,  PCBs,  and hexane extracts. Median
     survival times decreased  with increasing suspended sediment
     concentration.  The relationship  observed permits use of mummichog data
     to index gross toxicity of sediments throughout the harbor.  Comparison
     of TLm values with benthic species diversity permitted zoning of the
     entire harbor into zones  of high, moderate, and low toxicity.

17.  Courtney, W. A. M., and W. J. Langston.  1980.  Accumulation of
     Polychlorinated Biphenyls in Turbot  (Scophthalmus maximus) from Seawater
     Sediments and Food.  Helgol. Wiss. Meeresunters, 33:333-339.

     Juvenile turbot were  held in the  laboratory for 15 days in laboratory
     aquaria containing sandy  sediments spiked with PCBs.  Turbot readily
     accumulated PCBs with concentrations in muscle reaching  2, 59, and 43
     pg/g in sediments containing 1, 60, or  100 pg/g respectively.
     Concentrations of PCB in  liver  were  3 to 11 times greater than that in
     muse le.

18.  DeCoursey,  P. J., and W.  B. Vernberg.   1975.  The Effect of Dredging in a
     Polluted Estuary on the Physiology of Larval Zooplankton.  Water Res.,
     9:149-154.

     Laboratory  bioassays  were conducted with water samples collected from a
     dredging site, downstream from  the dredging site, and from 3 locations
     within a diked disposal site in Charleston Harbor  (South Carolina).
     Because of  changing salinities, Daphnia (freshwater), Paleomonetes and
     Polydora (saltwater)  species were tested for survival, metabolic rate,
     and swimming rate. Water from  all sites was more toxic  than control
     water, and  water from the disposal site was most toxic.  Decreases in
     metabolic rate and swimming activity were also observed  in organisms
     exposed to  test water when compared  to  controls.  Disposal site water
     again had the greatest effect.

19.  DiSalvo, L. H., H. E. Guard, N. D. Hirsch, and J. Ng.  1977.  Assessment
     and Significance of Sediment Associated Oil and Grease in Aquatic
     Environments.  Tech.  Rep. D-77-26, U.S. Army Engineers Waterways
     Experiment  Station, Vicksburg,  Mississippi, November 1977.  148 pp.
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     Laboratory studies were conducted with mussels  (Mytilus edulis), crabs
     (Hemigrapsus oregonensis),  snails (Acanthina spirata), and  freshwater
     clams (Corbicula sp.),  which were exposed for up to 30 days to  sediment
     contaminated with oil and  grease.  Sediments contaminated with  2000 ppm
     hydrocarbons produced about 50 to 70 ppm in mussels and crabs.  The
     analytical procedure for hydrocarbons in tissue included a  saponification
     procedure.  Mortality was  low in all tests for  up to 30 days.   The report
     is not clear as to exactly what chemicals were  included in  the  analyses
     of total hydrocarbons.

20.  Durant,  C. J., and R.  J. Reimold.  1972.  Effects of Estuarine  Dredging
     of Toxaphene-Contaminated  Sediments in Terry Creek,  Brunswick,  Georgia,
     1971.  Pestic. Monitor. J., 6(2):94-96.

     A field study was conducted examining the concentration of  toxaphene in
     oysters before and after dredging heavily contaminated sediments in an
     estuarine creek.  No increase in toxaphene concentration in already
     contaminated oysters (3.3 yg/g)  was observed.   Toxaphene in sediment
     ranged from 2.9 to 1,858.3  yg/g.

21.  Duyvejonck, J.  1977.   Distribution and Movements of Fishes in  a Small
     Stream.   Trans. 111. State  Acad.  Sci.   70(2):212.

     Evidence suggests that dredging disrupts habitat favored by some species
     of fish and that they do not readily return to  such areas.   This was an
     abstract of a paper presented in 1977 at a joint meeting of the Illinois
     and Missouri Academies  of Sciences.

22.  Elder, D. L., S. W. Fowler,  and G.  G.  Polikarpov.   1979.  Remobilization
     of Sediment Associated PCBs by the  Worm Nereis  diversicolor.  Bull.
     Environ. Contain. Toxicol.,  21:448-452.

     Laboratory studies were conducted to study PCB  uptake and loss  by Nereis
     diversicolor using spiked sediment as a PCB source.   Worms  were placed
     directly in sediments  under flowing seawater, sampled periodically (guts
     were purged of sediments),  and analyzed for PCBs.   Uptake phase of the
     tests lasted for 120 days and the elimination phase lasted  60 days.
     Substantial accumulation of PCBs  took place,  reaching a steady-state
     concentration after about 40-60 days.   The biological half-time was
     calculated for this experiment to be 27 days.   The authors  conclude that
     PCB compounds in the sediment cannot be considered as being isolated from
     the biosphere.

23.  Emerson, R. R.  1974.   Preliminary  Investigations  of the Effects of
     Resuspended Sediment on Two Species of Benthic  Polychaetes  from Los
     Angeles  Harbor.  In:  Marine Studies of San Pedro Bay, California.  Part
     III,  Thermal Tolerance  and  Sediment Toxicity Studies, D. F.  Soule and M.
     Oguri, eds.  USC-SG-1-74, University of Southern California, Office of
     Sea Grant Programs, Allen Hancock Foundation, Harbor Environmental
     Projects,  pp. 97-110.
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     Laboratory  bioassays  were  conducted with two marine polychaetes using
     elutriates  from sediments  collected in Los Angeles Harbor.  Ninety-six
     hour tests  revealed no mortality of Ophryotrocha nr. labronica; however,
     mortality was  observed during  similar tests with Capitella capitata.
     Sediments collected from various locations in  the harbor yielded a range
     of contaminant levels. An apparent correlation was observed between
     mortality rates and both organic and inorganic contaminant levels in
     sediment.  The author suggested that further testing was necessary.

24.  Emerson,  R. R.  1976.  Bioassay and Heavy Metal Uptake Investigations of
     Resuspended Sediment  on Two Species of Polychaetous Annelids.  In:
     Marine Studies of  San Pedro Bay, California.   Part 11, Potential Effects
     on the Biota of Outer Los  Angeles  Harbor, Toxicity, Bioassay and
     Recolonization Studies, D. F.  Soule and M. Oguri, eds.  University of
     Southern  California,  Office of Sea Grant Programs, Allen Hancock
     Foundation, Harbor Environmental Projects,  pp. 69-90.

     "Two species of polychaetous annelids (Capitella capitata and
     Ophryotrocha sp.)  were used in a series of bioassays to determine the
     toxicity  of resuspended sediments  from fourteen stations in Los Angeles
     Harbor.  Significant  mortality did not occur in either short-term
     (96-hour) or long-term (28-day) bioassays using Ophryotrocha sp.  Numbers
     of offspring were  significantly reduced in all sediments except the
     outermost harbor station  (LNG-1),  indicating sublethal effects.
     Development success of Capitella capitata larvae ranged from 40% to 95%.
     The more  grossly contaminated  sediments yielded lower numbers of
     successfully developing larvae but higher growth rates in the surviving
     larvae.  Contamination levels  of the sediments correlated more closely
     with sediment  particle size than with distance from the outside harbor.

     Heavy metal concentrations in  the  tissues of Capitella capitata did not
     correspond  with sediment contamination levels. Resuspended sediment may
     result in "scavenging" which lowers the concentration of some heavy
     metals in the  seawater."   (author  abstract)

25.  Engler, R.  M.   1980.   Prediction of Pollution  Through Geochemical and
     Biological  Procedures: Development of Regulation Guidelines and Criteria
     for the Discharge  of  Dredged and Fill Material.  In:  Contaminants and
     Sediments,  Vol. 1, R. A. Baker, ed.  Ann Arbor Sciences Publishers, Inc.,
     Ann Arbor,  Michigan,   pp.  143-169.

     "Guidelines and criteria have  been published (13, 14) for the ecological
     evaluations of the discharge of dredged and fill material into inland
     waters and  the transportation  of dredged material for dumping into ocean
     waters.  A  history of regulatory criteria development reveals that tests
     for describing the pollution-producing characteristics of dredged
     sediments were in  use in the late  1960s and were similar to those used to
     evaluate  the bulk  characteristics  of municipal and industrial wastes.
     This approach  proved  ineffective.  Recent evaluative procedures use
     leaching  tests for specific groups of contaminants; toxicity and
     bioaccumulation tests with various aquatic organisms; and general
     ecological  evaluations of  the  proposed disposal sites.  Implementation
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     manuals have subsequently been published  and  are  in use.  Field
     evaluation and verification have shown these  manuals  to be effective
     environmental management tools." (author  summary)

26.  Feng, S. Y.  1977.  Thames River Hydrography,  Phytoplankton, and Trace
     Metal Concentrations in Water,  Sediment,  and  Shellfish.  Section B in:
     Physical, Chemical,  and Biological Effects  of  Dredging in the Thames
     River (Connecticut)  and Spoil  Disposal at the New London (Connecticut)
     Dumping Ground,   Rep. No. 2 (Final Report).   Interagency Scientific
     Advisory Subcommittee on Ocean Dredging and Spoiling, Division of
     Environmental Assessment, April 1977.   346  pp.

     "...Field surveys of the Thames River  hydrography,  phytoplankton, and
     trace metal concentrations in  water, sediment, and  shellfish suggested
     that effects of  dredging on primary production were spatially and
     temporally limited.   The highest concentrations of  nickel, lead, cadmium
     and mercury in water samples were observed  before or  during dredging,
     while copper was highest after dredging but were  generally higher
     upriver.  Sediment levels of these five metals, plus  zinc and organic
     carbon, increased in an upriver direction.  Dredging  related changes in
     trace metal body burdens (were observed)  in shellfish but were difficult
     to separate from normal seasonal variations.   No  gross pathology was
     detected in the  shellfish..."  (author  abstract)

27.  Fujiki, M., R. Hirota,  and S.  Yamaguchi.  1977.   The  Mechanism of
     Methylmercury Accumulation in  Fish.  In:  Management  of Bottom Sediments
     Containing Toxic Substance,  S.  A. Peterson  and K. K.  Randolph, eds.  EPA
     600/3-77-083, U.S. Environmental Protection Agency, Office of Research
     and Development, Corvallis,  Oregon,  pp.  89-95.

     Red sea bream (Chrysophrys major) were held in laboratory aquaria
     containing Minamata Bay sediments (0.015  mg Hg/kg dry sediment) for 10
     days.  Concentrations of Hg in bream exposed  to contaminated sediment
     were not different than bream  held in  control  tanks.

28.  Fulk, R., D. Gruber,  and R.  Wullschleger.   1975.  Laboratory Study of the
     Release of Pesticide and PCB Materials to the  Water Column During
     Dredging and Disposal Operations.  Contract Rep.  D-75-6, U.S. Army
     Engineers Waterways Experiment Station, Vicksburg,  Mississippi, December
     1975.  112 pp.

     Sediments, water column water,  and interfacial water  samples were
     collected from five sites (2 salt water,  3  freshwater of which two were
     in Lake Michigan) and analyzed for organic  contaminants.  Laboratory
     tests were conducted to estimate the release  of organics to the water
     column upon resuspension of sediments  and to  determine settling times for
     desorbed contaminants.   PCBs,  DDT,  and dieldrin were  the most prevalent
     contaminants found in environmental samples.   No  correlation was found
     between PCB concentration and  total organic carbon, oil and grease, or
     silt and clay in sediments or  interstitial  water.   No measurable
     desorption of contaminants was observed at  sediment to water ratios of
     1:10 or lower, but desorption  did occur at  1:5 ratios.  PCBs remaining in
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     solution after various settling times  were related  to  suspended oil and
     grease and suspended solids.   The highest concentration  of PCBs measured
     in settling tests was 0.03 pg/1.

29.  Gannon, J. E., and A. M. Beeton.  1969.   Studies  on the  Effects of
     Dredged Materials from Selected Great  Lakes Harbors on Plankton and
     Benthos.  Spec. Rep. No. 8, Center for Great Lakes  Studies, University of
     Wisconsin, Milwaukee.  82 pp.

     Laboratory bioassays were conducted with sediments  collected from
     Buffalo, Calumet, Cleveland,  Green Bay,  Indiana,  Rouge River, and Toledo
     harbors.  The  bioassays measured sediment selectivity  by zooplankton,
     sediment toxicity to benthos,  and effects of sediment  on growth of
     phytoplankton  based on carbon-1 4 uptake.   The majority of tests were run
     under static conditions, some  involved multiple additions of sediment,
     and most lasted one week or less.  No  correlations  were  evident between
     any biological parameter and physical  measurement of sediment consisting
     of COD, NH4, organic N, PC>4,  and volatile solids.

30.  Gannon, J. E., and A. M. Beeton.  1971.   Procedures for  Determining the
     Effects of Dredged Sediments on Biota-Benthos Viability  and Sediment
     Selectivity Tests.  J. Water  Pollut. Control Fed.,  43(3):392-398.

     Laboratory tests were conducted with Pontoporeia  affinis and sediments
     collected from nine Great Lakes harbors  to determine selectivity
     (sediment preference) and viability (survival after 24-  or 48-h exposure
     to sediments).  Washed aquarium sand,  Fullers Earth, open lake sediments
     from Lake Michigan, and sediment from  one of the  harbors (relatively
     unpolluted) were used as control sediments.  Although  no chemical
     analyses were  performed on either sediments or overlying water,
     Pontoporeia avoided sediments  from harbors thought  to  be highly polluted.
     In addition, those sediments considered  as polluted caused higher
     mortality of Pontoporeia than  control  sediments.

31.  Gillespie, D.  C., and D. P. Scott.  1971.  Mobilization  of Mercuric
     Sulfide from Sediment into Fish under  Aerobic Conditions.  J. Fish Res.
     Board Can., 28:1807-1808.

     Guppies (Poecilia reticulata)  were held  in laboratory  aquaria containing
     sediments spiked to 50 yg/g (dry wt.)  HgCl2, HgS, or controls (0.24 yg/g
     Hg).  After 55 days, Hg concentrations were found to be  2.7 yg/g in fish
     exposed to Hg  Cl2, 1.6 yg/g for fish in  the HgS treatment, and 1.1 yg/g
     in control fish.

32.  Halter, M. T., and H. E. Johnson.  1977.   A Model System to Study the
     Desorption and Biological Availability of PCS in  Hydrosoils.  In:
     Aquatic Toxicology and Hazard  Evaluation,  ASTM STP  634,  F. L. Mayer and
     J. L. Hamelink, eds.  American Society for Testing  and Materials,
     Philadelphia,  Pennsylvania,  pp. 178-195.

     Laboratory studies were conducted with fathead minnows exposed to natural
     sediments spiked with PCBs (10 yg/g to 500 yg/g).   Bioaccumulation tests
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     were run under flow-through conditions;  and some  tests used  a  screen to
     separate the fish from the sediment,  while  other  tests used  no screen,
     thereby allowing contact between fish and sediment.   The maximum duration
     of the bioaccumulation tests was 32 days.  Fish allowed contact with
     contaminated sediment accumulated levels of PCBs  (2.7 yg/g - 99.6 yg/g)
     six times those of the fish that were screened  from  contact  with the
     sediments (0.6 yg/g - 18.5 yg/g).  Desorption of  PCBs from spiked
     sediments was also measured under static and flow-through conditions and
     equilibrium concentrations were related  to  PCB  concentrations  in the
     sediment.

33.  Haven, D. S. and R. Morales-Alamo.  1978.  Uptake of Kepone  from
     Suspended Sediments by Oysters,  Rangia and  Macoma.   In:  Kepone in the
     Marine Environment:  Publications and Prepublocations, Appendix C to the
     EPA Kepone Mitigation Feasibility Project.   EPA-440/5-78-004C,  U.S.
     Environmental Protection Agency,   pp. 237-288.

     Laboratory experiments were conducted exposing  oysters (Crassostrea
     virginica) and clams (Rangia cuneata) and Macoma  balthica) to
     kepone-contaminated sediment from the James River (Virginia).   These
     bivalves concentrated kepone 1000-3000 times the  water concentration when
     sediment was resuspended.  Strong correlations  were  observed in tests
     conducted over a four-week period between concentrations of  kepone in
     oysters and in sediments and the results indicated a leveling  of
     concentrations in animals after one week of exposure. When  Crassostrea
     and Rangia were buried in sediment and low  water  flow kept sediments from
     being resuspended,  little kepone accumulation occurred.

34.  Heit, M., C. S. Klusek,  and K.  M. Miller.  1980.   Trace Element,
     Radionuclide, and Polynuclear Aromatic Hydrocarbon Concentrations in
     Unionidae Mussels from Northern Lake  George. Environ. Sci.  Technol.,
     14(4):465-468.

     Samples of freshwater mussels and associated sediment were collected from
     Lake George (New York) and analyzed for  levels  of trace elements,
     radionuclides, and polynuclear  aromatic  hydrocarbons (PAHs).
     Concentration ratios (CR—muscle tissue  concentration/sediment
     concentration) for the three species  of  mussels collected were about 30
     for Cd, 10 for Hg,  9 for Se, 7  for Zn, and  2 for  Cu. Cr, Ni,  and Pb had
     CRs of about 1, while As and Sn appeared not to be accumulated.
     Radionuclides associated with fallout from  weapons tests were  accumulated
     in Elliptic complanatus«  PAH concentrations in mussels were found to
     vary greatly between individuals.

35.  Herdendorf, C. E.,  and C. L. Copper.   1976.  Investigations  of Larval
     Fish Populations in Maumee River Estuary and Bay  and Assessment of the
     Impact of Commercial Sand and Gravel  Dredging on  These Populations.
     Center for Lake Erie Area Research, Ohio State  University, Columbus.  86
     pp.

     Field studies were conducted in conjunction with  dredging activity in the
     Maumee River estuary.  Surface  and bottom tows  with  plankton nets
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     collected fish larvae at thirteen stations.  Authors concluded that
     dredging activities reduce fish larvae densities in the vicinities  of the
     dredges.  Larvae caught in the wash water used to process the dredged
     material are destroyed.  Larval movements are largely controlled by water
     currents.

36.  Hirota, R., M. Fujiki, Y. Ikegaki, and S. Tajima.  1978.  Accumulation of
     Mercury by Fish from Contaminated Sediments.   In:  Proceedings of the
     Fourth U.S.-Japan Experts' Meeting, Tokyo,  Japan,  pp. 225-240.

     Field studies were conducted using fish caged in Minimata Bay.  Fish were
     reared for up to 6 months with samples collected every 10 days.
     Correlations were calculated between mercury  and body length of  fish.
     The authors concluded that all fish species did not accumulate mercury at
     the same rate or to the same extent and therefore selected species  of
     different ages should be used if a mercury monitoring program was
     implemented in Minamata Bay.

37.  Hirsch, N. D., L. H. DiSalvo, and R. K. Peddicord.  1978.   Effects  of
     Dredging and Disposal on Aquatic Organisms.  Tech. Rep.  DS-78-5,  U.S.
     Army Corps of Engineers,  Vicksburg, Mississippi.  41  pp.

     A synthesis of six DMRP reports dealing with  dredging effects on aquatic
     organisms.  Three of these reports dealt with laboratory studies
     examining contaminant effects.  This summary  report concluded that:   (1)
     uptake of sediment-associated heavy metals  by organisms  was rare? (2)
     bulk analysis of sediments for metals did not reflect their potential
     environmental impact;  and (3) oil and grease  residues were tightly  bound
     to sediment, making them mostly unavailable for uptake.

38.  Hoke, R. A., and B. L. Prater.  1980.  Relationship of Percent Mortality
     of Four Species of Aquatic Biota from 96-hour Sediment Bioassays  of Five
     Lake Michigan Harbors  and Elutriate Chemistry of the Sediments.   Bull.
     Environ. Contam. Toxicol., 25:394-399.

     Laboratory bioassays were conducted using sediments collected from  five
     Lake Michigan harbors:  Indiana Harbor (Indiana),  Grand  Haven (Michigan),
     New Buffalo (Michigan),  Green Bay (Wisconsin),  and Marinette-Menominee
     (Wisconsin-Michigan).   Pimephales promelas, Hexagenia limbata, Lirceus
     fontinalis,  and Paphnia magna were held in a  recirculating system in the
     presence of the sediment.   Correlations were  tested between 96-hour
     mortality (percent) and elutriate chemical  data (NH3,  COD,  TP, TKN,
     NO2» Cl~, 804=,  As, Cd,  Cu,  Fe,  Pb, Mn, Ni, and Zn).   Sixty bivariate
     correlation analyses revealed only 4 significant correlations:  mortality
     of P. promelas and chloride concentration,  mortality of  H.  limbata,  and
     concentrations of chloride,  ammonia and nickel.   The authors  questioned
     the utility of elutriate  testing in evaluating  ecological  effects of
     dredged material disposal.
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39.  International Working Group on the Abatement and Control of  Pollution
     from Dredging Activities Report.   May 1975.   International Working  Group
     on the Abatement and Control of Pollution from Dredging Activities.  227
     pp.

     The Working Group reviewed existing dredging practices and regulations
     and discussed potential environmental effects.   The  report contains a
     literature review on various aspects of  dredging and concludes  that
     present techniques of sediment analysis  do not provide adequate
     information on bioavaliability of  toxic  substances.

40.  Jernelov,  A.  1970.  Release of Methylmercury from Sediments with Layers
     Containing Inorganic Mercury at Different Depths.  Limnol. Oceanogr.,
     15(6):958-960.

     Laboratory experiments examined Hg uptake by Lebistes reticulatus held
     over columns of sediment in which  layers were spiked with 100 yg/g  HgCl2
     at various depths.  Along with the fish,  either Tubificidae, Anodonta, or
     no macrofauna were added to test tanks.   With no macrofauna, uptake by
     fish only occurred from the spiked surface sediments when mercury was
     available at the surface.  In the  presence of Tubificidae, Hg was
     available for accumulation down to a depth of 2 cm,  while in the presence
     of Anodonta, Hg was available down to a  depth of 9 cm.

41.  Kneip, T.  J., and R. E. Hazen.  1979. Deposit and Mobility  of  Cadmium in
     a Marsh-Cove Ecosystem and the Relation  to Cadmium Concentration in
     Biota.  Environ. Health Perspect., 28:67-73.

     "The study reported here presents  the results of an  investigation of a
     marsh-cove ecosystem heavily contaminated by cadmium. The most
     contaminated aquatic sediments were dredged  in 1972-73, taut  the
     resuspension of the sediments and  recycle of water from the  dredge  spoil
     resulted in reestablishment of a large,  contaminated sediment bed with
     concentrations very similar to those observed before dredging.

     The stability of the sediment concentrations and shallow depth  of the
     cadmium in the sediments indicate  that the deposit is relatively stable
     in agreement with the expectations based on  the water chemistry of  the
     system.

     Uptake does occur in both marsh and aquatic  plants and all species  of
     animals tested.  Significantly elevated  concentrations are observed
     compared to noncontaminated areas; however,  edible portions  of  most fish
     do not appear to present a hazard.  Crabs appear to  present  the most
     likely source of a hazard to humans.  This potential hazard  is  still
     under investigation.

     The dredging removed about 5.5 MT  of cadmium, about  one-fourth  of that
     originally estimated to be present, but  twice that amount is found  to be
     in the cove sediments 3 to 4 years after dredging.  No appreciable
     improvement in the ecosystem has been made,  and more careful
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     consideration should be given to the need for decontamination and the
     method of removal of contaminated aquatic sediments in any future case."
     (author abstract)

42.  Kudo, A.  1976.  Mercury Transfer from Bed Sediments to Freshwater Fish
     (Guppies).  J. Environ. Qual., 5(4):427-430.

     Static bioassays were conducted in the laboratory exposing guppies
     (Lebistes reticulata) to sediment containing 523 ng/g (dry weight)
     naturally deposited Hg and additional 500 ng/g of spiked 203ng.  Four
     groups of guppies were consecutively exposed to the same sediment for
     periods of 23-51 days.  Continuous accumulation was observed in all
     groups with high individual variation (600%).  No correlation between
     uptake and size or sex of fish was observed.  In depuration studies,
     half-lives ranged between 38 and 75 days.

43.  Kudo, A., and D. C. Mortimer.  1979.  Pathways for Mercury Uptake by  Fish
     from Bed Sediments.  Environ. Pollut., 19(3):239-245.

     Guppies (Lebistes reticulata) were exposed in the laboratory to sediments
     collected from the Ottawa River (Canada) to determine the route of
     mercury uptake by the fish.  Mercury (as mercuric chloride) was added to
     the already contaminated (0.523 yg/g Hg) river sediment to attain a Hg
     concentration of 1.023 yg/g based on dry weight.  Radioactive mercury
     (203fjg/ 47 ciays half life) was introduced into the sediment as a tracer
     and analysis performed by measuring radioactivity of live fish.
     Exposures were conducted in a two-chambered tank connected by two glass
     tubes screened at both ends.  This allowed water to flow between the
     chambers, but fish were restricted to one side or the other.  In this
     study, sediment was introduced into one chamber and fish into one side or
     the other.  Analysis revealed that fish in contact with the sediments
     accumulated 9 times more mercury than fish exposed to water alone.

44.  Lang, C., and B. Lang-Dobler.  1979.  The Chemical Environment of
     Tubificid and Lumbriculid Worms According to the Pollution Level of the
     Sediment.  Hydrobiologia, 65(3):273-282.

     The authors collected 170 sediment samples from Lake Geneva (Switzerland)
     and analyzed the samples for the presence of worms and ten chemical
     variables (organic carbon,  total P, Cd,  Zn,  Sn,  Pb,  Hg,  Cu, Cr, and Mn).
     Fourteen tubificid and 2 lumbriculid worm species were detected in the
     sediment samples that were also classified by physical variables,
     percentage of sand,  silt, and clay, and depth.  Factorial correspondence
     analysis described relationships between worm species and chemical and
     physical variables.   Six worm species groups were identified,  each
     characterized by different chemical variables indicating varying levels
     of pollution.

45.  Laskowski-Hoke,  R. A., and B. L. Prater.  1981.   Relationship of
     Mortality of Aquatic Biota from 96-hour  Sediment Bioassays and the Change
     in Chemical Composition of the Test Water.  Bull. Environ. Contain.
     Toxicol., 26:323-327.
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     Laboratory bioassays were conducted exposing  Pimephales promelas,
     Hexagenia limbata,  Lirceus fontinalis,  and Daphnia  magna  to sediments
     collected from five Lake Michigan harbors. Mortality was measured  in
     these flow-through tests and correlated with  a  value described as the
     "difference chemistry value."  The value was  the pretest  water
     concentration subtracted from the posttest water concentration of a
     number of water quality parameters.  Mortality  of P. promelas was
     significantly correlated with difference chemical values  for NO3 +  NO2»
     NH3, TKN, and total P.  H.limbata mortality was correlated with suspended
     solids, NH3» Cd, Cr, CN~, Hg, and Zn.  D. magna mortality was correlated
     with CM" and Zn, while L. fontinalis was correlated with  NH3.

46.  Laube, V., S. Ramamoorthy, and D. J. Kushner.  1979.  Mobilization  and
     Accumulation of Sediment Bound Heavy Metals by  Algae.  Bull. Environ.
     Contain. Toxicol., 21 (6) :763-770.

     A laboratory experiment was conducted in which  two  species of algae,
     Anabaena and Ankistrodesmus braunii were exposed to Ottawa River  (Canada)
     sediment and bioaccumulation of Cd and Cu was measured.   Sediment,  to
     which either Cd or Cu nitrate salts were added, and algae were placed in
     separate dialysis bags.  The bags were suspended in river water and
     rotated for 72 hours.  Anabaena accumulated 20  ppm  Cd and A. braunii
     accumulated 9 ppm Cd from sediment containing 100 ppm Cd. From  sediment
     containing a natural level of 50  ppm Cu (and  an added 1 ppm), Anabaena
     accumulated 20 ppm and A. braunii 7 ppm.

47.  Lee, C. R., R. E. Hbeppel, P. G.  Hunt,  and C. A. Carlson. 1976.
     Feasibility of the Functional Use of Vegetation to  Filter, Dewater, and
     Remove Contaminants from Dredged  Material. Tech. Rep. D-76-4, U.S. Army
     Engineer Waterways Experiment Station,  Vicksburg, Mississippi, June 1976.
     107 pp.

     This report evaluates the feasibility of using  vegetation in dredge spoil
     containment areas to improve discharge water  quality.  The authors
     concluded that selected vegetation could remove significant  amounts of
     nitrogen and phosphorus from the  discharge water and  improve the quality
     of the water, but the use of vegetation to remove heavy metals has
     limited feasibility.  Included in the report  is a  literature search with
     numerous references on the uptake of metals from contaminated  sediments
     by plants and the potential for these metals  then entering the  food
     chain.

48.  Lee, G. F., J. M. Lopez, and G. M. Mariani.  1976.   Leaching and Bioassay
     Studies on the Significance of Heavy Metals in Dredged  Sediments.   Center
     for Environmental Studies, University of Texas.  68 pp.

     A series of  laboratory toxicity tests were conducted using sediments
     from:  Mobile, Alabama; Ashtabula, Ohio; San Francisco  and Los  Angeles,
     California;  Bridgeport, Connecticut; and Trinity River,  Houston Ship
     Channel, Galveston, Texas City, Corpus Christi, Port Aransas,  and Port
     Lavaca,  Texas.   These studies were short term  U 96-h static toxicity
     tests) on dilutions of elutriate water.  The authors conclude  that "the
                                      22

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     toxicity of the sediment elutriate mixtures was  insufficient to be
     adverse to aquatic organisms in a typical open water  disposal site water
     column".

49.  Lee,  G. F., M. D.  Piwoni,  J. M. Lopez,  G. M. Mariani, J. S.  Richardson,
     D. H. Homer, and F. Saleh.  1975.  Research Study for the Development of
     Dredged Material Disposal Criteria.  Contract Rep. D-75-4, U.S. Army
     Waterways Experiment Station, Vicksburg,  Mississippi.   381 pp.

     This  report provides information on elutriate tests run on sediments
     collected across the country.  Toxicity tests were run  on sediments from
     two locations and both were basic static exposures.   The dissolved oxygen
     content of the elutriate influenced the release  of chemical  contaminants
     from  the dredged sediments.  The authors recommended  a  modified Elutriate
     Test  which allowed for aeration during  the preliminary  mixing period.
     They  also recommended that the sediment volume be reduced from 20 percent
     to 5  percent.

50.  Lee,  G. F., and R. H. Plumb.  1974.  Literature  Review  on Research Study
     for the Development of Dredged Material Disposal Criteria.   Contract Rep.
     D-74-1  U.S. Army Engineer Waterways Experiment Station, Vicksburg,
     Mississippi.  145  pp.

     This  literature review contains 163 references on dredging,  disposal, and
     their effects.  Several references deal with the effects of  toxic
     substances on biota and none deal with  bioaccumulation.

51.  Lindberg, S. E., and R. C. Harris.  1977. Release of Mercury and
     Organics from Resuspended Near Shore Sediments.   J. Water. Pollut.
     Control Fed., 49(12):2479-2487.

     Sediments were collected from Mobile Bay (Alabama) and  the Shark River
     (Florida), and placed in 14-1 bottles with their associated  overlaying
     water.   Sediments  were resuspended mechanically  for 6 hours  and water
     samples taken and  analyzed.  In all sediment-water samples tested, large
     increases in dissolved Hg were observed shortly  after sediment
     resuspension.  No  consistent correlation was found between this increase
     and changes in pH, redox potential, total dissolved sulfide, or dissolved
     organic carbon.

52.  Luoma,  S. N., and  E. A. Jenne.  1975.  Factors Affecting the Availability
     of Sediment-Bound  Cadmium to the Estuarine, Deposit-Feeding  Clam.  In:
     Radioecology and Energy Resources, C. E.  Gushing, Jr.,  ed.   Dowden,
     Hutchinson, and Ross, Inc., Stroudsburg,  Pennsylvania,  pp.  283-290.

     Laboratory studies were conducted under static water  conditions using
     estuarine clams (Macoma balthica).  The clams were exposed to
     TO^Cd-spiked sediment for 14 to 42 days in a number of  experiments.
     Sediments were chemically extracted to  compare results  with  uptake in
     clams.   These studies were conducted to estimate the  relative
     contribution of 109cd to the organism from ingestion  of sediment or
     direct  uptake from the water.  Some uptake of Cd by clams through
                                    23

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     ingestion of spiked natural  sediment was  observed, but the concentrations
     of 109cd i*1 th6 clam were  never  greater than 10 percent of the
     concentrations of  109cd in the sediment.  No correlations were observed
     between chemical entraction  of sediment and the bioavailability of lO^Cd.

53.  Lyes,  M. C.  1979.  Bioavailability  of a  Hydrocarbon from Water and
     Sediment to the Marine Worm  Arenicola marina.  Mar. Biol., 55:121-127.

     Worms  were collected from  Booterstown Strand (Eire) and exposed in the
     laboratory to sediments spiked with  14c-1-naphthalene.  Sediments were
     rinsed with water  prior to introduction of organisms.  After five hours,
     concentration factors (cf) ranged  from 0.1 to  4.1  for various tissues
     analyzed separately.  Stomach wall tissue had  the  highest cf, while body
     wall cf was approximately  0.5.

54.  Lynch, T. R., and  H. E. Johnson.  1982. The Availability of a
     Hexachlorobiphenyl Isomer  to Benthic Amphipods from Experimentally-
     Contaminated Sediments. In:  Aquatic Toxicology and Hazard Assessment:
     Proceedings of the Fifth Annual  Symposium on Aquatic Toxicology, J. G.
     Pearson, R. B. Poster, and W. E. Bishop,  eds.  American Society for
     Testing and Materials.  Philadelphia, PA. pp. 273-287.

     "The present study was designed  to determine the availability of
     radiolabeled 2,4,5,2',4',5', -hexachlorobiphenyl  (HCBP) to taenthic
     amphipods from experimentally-contaminated sediments.  Amphipods
     accumulated HCBP primarily by direct uptake from water as a function of
     exposure time.  However, organisms that were directly exposed to the
     sediments had consistently higher  (2.3 to 10.8X) HCBP concentrations than
     did organisms exposed only to the  sediment-desorbed residues in the
     water.  Experimental results demonstrated that substrate organic matter
     content, particle  size, and  sediment mineralogy affected the
     concentrations of  HCBP in  the water  and,  in turn,  in the organisms.
     Removal of sediment organic  matter enhanced HCBP accumulation by both
     substrate-exposed  and water-exposed  organisms. Amphipods accumulated the
     least HCBP when exposed to silt-clay particle  size fractions which
     contained organic  matter."  (author  abstract)

55.  Marking, L. L., V. K. Dawson, J. L.  Allen, T.  D. Bills, and J. J. Rach.
     1981.   Biological  Activity and Chemical Characteristics of Dredged
     Material from Ten  Sites on the Upper Mississippi River.  Summary Report,
     National Fishery Research  Laboratory, U.S. Fish and Wildlife Service,
     LaCrosse, Wisconsin.  145  pp.

     Laboratory toxicity tests  were conducted  under static conditions for 96
     hours using a variety of freshwater  invertebrates  and fish.  Sediments
     were analyzed for  nutrients, metals, PCBs, and pesticides by bulk,
     suspended particulate, and elutriate procedures.   Exposure vessels were
     aerated to maintain the sediment in  suspension.   Over half of  the water
     volume in each vessel was  replaced daily. Sediments  from  two  locations
     were toxic and the particulate phase exposures were more toxic  than the
     solid phase exposures.
                                      24

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56.  McCain,  B. B.,  H.  O.  Hodgins,  W.  D.  Gronlund,  J. W.  Hawkes, D. W. Brown,
     M. S. Myers,  and J. H.  Vandermeulen.  1978.  Bioavallability  of Crude Oil
     from Experimentally Oiled Sediments  to English Sole  (Paraphrys vetulus),
     and Pathological Consequences. J. Fish.  Res.  Board  Can.,  35:657-664.

     "English sole (Paraphrys vetulus) were exposed to  experimentally oiled
     (Alaskan North  Slope  crude oil) sediments over a 4-mo period  to assess
     the bioavailability and tissue hydrocarbon distribution kinetics in
     flatfish.  Data were  also obtained on hydrocarbon  related  physiological
     changes  and tissue pathology.  Crude oil  was mixed with aromatic
     hydrocarbon-free sediments to  a concentration  of 700 yg/g  dry weight at
     the beginning of the experiment.  During  the 1st mo  of the experiment
     this concentration decreased to 400  yg/g  dry weight, and remained
     relatively stable during the remainder of the  4-mo period. Compositional
     changes  were observed in the alkane  and aromatic fractions, with a
     differential decrease in the substituted  naphthalenes.  Flatfish
     maintained in such oiled sediments readily took up alkane  and aromatic
     petroleum hydrocarbons  from these sediments, and accumulated  these in
     skin, muscle, and liver; 1-and 2-methylnaphthalene and
     1,2,3,4-tetramethylbenzene were accumulated to great extent than other
     aromatics.  Tissue hydrocarbons decreased with time, and after 27-d
     continuous exposure to  oiled sediments only the liver contained
     detectable levels of  hydrocarbons.   After 2 months,  <2% of the initial
     aromatic hydrocarbon load could be detected, and only in the  liver in
     flatfish that were continuously maintained on  oiled  sediments.
     Depuration of tissue  aromatics differed for various  aromatics,
     1,2,3,4-tetramethylbenzene and 2-methylnaphthalene being most persistent.
     Depuration is thought to be due to induction of the  aryl hydrocarbon
     hydroxylase system during initial exposure to  oiled  sediments.
     Concomitant with the high tissue  hydrocarbon period  were found enhanced
     weight loss and severe  hepatocellular lipid vacuolization  (HLV).
     Although the observations on growth  changes and liver pathology are
     preliminary,  the data indicate the need for further  detailed  study of
     fish growth abnormalities and  pathology in the presence of petroleum
     hydrocarbons."   (author abstract)

57.  McConaugha, J.  R.   1976.  Toxicity and Heavy Metals  Uptake in Three
     Species  of Crustacea  from Los  Angeles Harbor Sediments.  In:  Marine
     Studies  of San  Pedro Bay, California.  Part 11, Potential  Effects on the
     Biota of Outer  Los Angeles Harbor, Toxicity, Bioassay and  Recolonization
     Studies, D. F.  Soule  and M. Oguri, eds.  University  of Southern
     California, Office of Sea Grant Programs, Allen Hancock Foundation,
     Harbor Environmental  Projects, pp.  49-68.

     "Two species of crustaceans, Acartia tonsa and Tisbe sp.,  were subjected
     to the filtrate fraction (<0.45  ) of resuspended sediments from 12
     stations in the Los Angeles Harbor.   The  96 hour bioassays for A. Tonsa
     produced significant reductions in the survival rates of test groups at
     stations LNG-6, LNG-7,  16, 17, 18, 24 and 27.   In  the Tisbe bioassays,
     only station LNG-7 had  significantly lower survival  in the test group
     than in  controls,  while test group survival at stations LNG-4, -25 and
     -27 were significantly  higher  than control survival. This data suggests
                                     25

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     that dredging operations could have an adverse effect on the A.  Tonsa
     population and consequently an effect on the plankton composition  and
     food chain in the Los Angeles Harbor.  However,  the stations with  poorest
     quality are in the area to be filled.

     Additional experiments were conducted to determine if the lined  shore
     crab, Pachygropsus crassipes, was capable of accumulating heavy  metals
     from resuspended sediments.  Following a 7-day exposure  to the sediment
     elutriate, the gill tissue was examined for 9 heavy metals.   Because of
     extreme variations in the data,  no discernible trends were observed."
     (author abstract)

58.  McLeese, D. W., and C. D. Metcalfe.  1980.   Toxicities of Eight
     Organochlorine Compounds in Sediment and Seawater  to Crangon
     septemspinosa.  Bull. Environ. Contain. Toxicol., 25:921-928.

     Beakers of sandy sediment (97% sand,  0.5 to 2.0 mm)  were fortified in a
     laboratory experiment with various concentrations  of one of  the  following
     organochlorines:  endrin, endosulfan, DDT,  dieldrin,  chlordane,  Aroclor
     1242, Aroclor 1254, and hexachlorobenzene.   Static bioassays  were
     conducted with the shrimp C. septemspinosa  to determine  LCso  values for
     the contaminants in water and in sediment.   LC5Q values  were 10-80 times
     higher for contaminants in sediment when compared  to values  for
     contaminants in water.

59.  McLeese, D. W., D. C. Metcalfe,  and D. S. Pezzack.   1980.   Uptake  of
     PCB's from Sediment by Nereis virens and Crangon septemspinosa.  Arch.
     Environ. Contain. Toxicol., 9:507-518.

     Two polychaete worms (Nereis virens and Glycera dibranchiota) and  the
     shrimp Crangon septemspinosa were exposed to PCB-fortified sediments in
     the laboratory.  Sediment PCB levels ranged from 0.04 to 0.58 mg/kg
     (dry).  Exposure time, organism size, and sediment type  were other
     variables tested.  Authors observed that uptake by organisms  was directly
     related to sediment concentration and inversely related  to organism size.
     Equilibrium concentrations were not attained after 32 days of exposure
     and concentration factors seemed greater from sandy sediment than  from
     muddy sediment.

60.  Moore, J. W.  1981.  Epipelic Algal Communities in a Eutrophic Northern
     Lake Contaminated with Nine Wastes.  Water  Res., 15(1):97:105.

     "The effects of contaminated bottom sediments on the species  composition,
     growth cycles and diversity of epipelic algal communities were determined
     between April and November 1978 in a shallow, eutrophic  lake  (Thompson
     Lake) situated in the Canadian subarctic.   The sediments had become
     contaminated by gold mining wastes, deposited in the lake between  1941
     and 1949.  Although the concentrations of total mercury,  copper, lead and
     zinc were high near the mine, averaging 440  g kg"1,  and 95,  30  and 115
     mg kg~l, respectively, they decreased rapidly beyond this distance and
     were near background levels 2.1-3.0 km from the mine. The algal
     communities in the zone of heaviest contamination  consisted of 63
                                      26

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     species, the most common of which were Anomoconeis  vitrea,  Pinnularia
     brebissonii and Cymbella species.  There were more  taxa (111-132)  at
     stations situated 1.1-3.0 km from the mine and the  main species  included
     several forms of Achnanthes, Fragilaria, and Navicula.   Although epipelic
     densities in the zone of heaviest contamination were only about  50% of
     those recorded at the other stations, the seasonal  growth patterns of the
     flora were generally similar thoughout the lake. Based on  these data,  it
     is concluded that:  (1) Mine wastes may have a long-term impact  on
     epipelic algae in northern environments; (2) The effects of heavy  metal
     pollution on the epipelon in subarctic lakes are similar to those  in
     temperate zone systems; and (3)  No species or group of  species could be
     designated as indicators of heavy metal contamination." (author
     abstract)

61.  Morton, J. W. 1977.  Ecological  Effect of Dredging  and  Dredge Spoil
     Disposal:  A Literature Review.   Tech. Pap. 94,  U.S. Fish and Wildlife
     Service.  33 pp.

     A literature review on the effects of dredging and  disposal in estuarine
     environments.  Few references are presented dealing with bioaccumulation
     or effects of contaminants associated with resuspended  sediments.

62.  Nathans, T. J., and T. J. Bechtel.  1977.  Availability of
     Sediments-Absorbed Selected Pesticides to Benthos with  Particular
     Emphasis on Deposit-Feeding in Fauna.  Tech. Rep. D-77-34,  U.S.  Army
     Engineers Waterways Experiment Station,  Vicksburg,  Mississippi.  83 pp.

     Laboratory studies were conducted in a mobile lab using natural  sea
     water, either in a flow-through  or recycling exposure system.  Tests were
     run with artificial sediments spiked with radiolabled DDT using  3  species
     of invertebrates.  Studies were  run for a maximum of 25 days.  A number
     of problems with the study were  identified by the authors and the
     sponsoring agency.  The organisms were not totally  depurated before
     analysis, no measurements of DDT were made in the organisms before
     exposure, and the sediments used were composed sand, clay,  and aged
     cereal.  Accumulation of DDT was measured in all 3  species  of
     invertebrates.

63.  Neff,  J. W., R. S. Foster,  and J. F. Slowey.  1978.   Availability  of
     Sediment-Adsorbed Heavy Metals to Benthos with Particular Emphasis on
     Deposit-Feeding in Fauna.  Tech. Rep. D-78-42,  U.S.  Army Engineer
     Waterways Experiment Station,  Vicksburg, Mississippi.   311  pp.

     Laboratory studies were conducted to evaluate the availability to  benthic
     invertebrates of metals associated with sediments.   A number of
     invertebrates were exposed to natural sediments  for 6 weeks, under static
     conditions.  Statistically significant accumulation of  metals was
     demonstrated only 36 times out of 136 metal-species-sediment test
     combinations.  No correlations were measured between accumulation  in
     organisms and bulk analyses or selective extraction procedures applied  to
     the sediments.
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64.  Nimmo,  D.  R.,  P.  D.  Wilson,  R.  R.  Blackman,  and A. J. Wilson, Jr.  1971.
     Polychlorinated Biphenyl Absorbed  from Sediments by Fiddler Crabs and
     Pink Shrimp.   Nature,  231:50-52.

     Shrimp  (Penaeus durarum) and crabs (Uca pugilator) were held in aquaria
     containing either contaminated  sediments collected from Escambia Bay
     (Florida), or  control sediment  (beach  sand).   Aroclor 1254 was found to
     be accumulated by both species  after 30 days  of exposure.  PCB
     concentrations in the organisms correlated with levels of PCBs in
     sediment.

65.  Peddicord, R.  K., and V. A.  McFarland.  1978.  Effects of Suspended
     Dredged Material on  Aquatic  Animals.   Tech.  Rep. D-78-29, U.S. Army
     Engineers  Waterways  Experiment  Station,  Vicksburg, Mississippi. 115 pp.

     Laboratory experiments were  conducted  to evaluate the impact of
     suspensions of sediments on  fish and invertebrates.  Studies were
     conducted  for  21  days and both  survival and  accumulation of contaminants
     were measured  when harbor sediments were used. The system used was an
     elaborate  continuous-flow system.   Fish survived suspensions of grams of
     sediment per liter while invertebrates survived tens of grams per liter.
     Fingerling striped bass showed  the greatest  sensitivity to sediment
     suspension.  Accumulation of contaminants was measured in only about one
     fourth  of  the  exposures where uptake could possibly have been measured.

66.  Peddicord, R., H. Tatem, A.  Gibson, and S. Pedron.  1980.  Biological
     Assessment of  Upper  Mississippi River  Sediments.  Misc. Pap. EL-80-5,
     U.S. Army  Engineers  Waterways Experiment Station, Vicksburg, Mississippi.
     82 pp.

     Laboratory studies were conducted  to examine acute toxicity and the
     potential  for  PCBs and metals to bioaccumulate in fish and invertebrates
     when exposed to sediment. These tests were  run for 4 to 14 days under
     static  water conditions (some experiments were done with water
     replacement).   The sediments used  were altered by removal of coarse
     grained materials (>200 mesh).  Acute  toxicity tests were conducted using
     mayfly  larvae, freshwater amphipods, and Paphnia.  Bioaccumulation tests
     were run with fish and clams.  Fish exposed  to sediments accumulated
     PCBs, Cd,  and Zn while clams only  accumulated PCBs.  Toxicity data were
     quite variable and no correlations were measured between toxicity data
     and analyses of chemicals in the sediment or bioaccumulation.

67.  Pequegnat, W.  E., R. R. Fay, and T. A. Wastler.   1980.  Combined
     Field-Laboratory Method for  Chronic Impact Detection in Marine Organisms
     and Its Application  to Dredged  Material Disposal.  In:  Estuarine and
     Wetland Processes, With Emphasis on Modeling, P.  Hamilton and K. B.
     MacDonald, eds.  Plenum Press,  New York. pp. 631-648.

     Field exposures of organisms held  in  "Biotal Ocean Monitor" were
     conducted and enzyme activity was  measured  in the organisms after they
     were returned to the laboratory.   ATPase, catalase, and cytochrome P-420
     and P-450 were measured in exposed organisms.  Tests were conducted on
                                     28

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     incineration wastes,  sewage and sludge disposal activities.   Some  changes
     in enzyme activity were measured in the studies conducted? however,  these
     changes must now be related to the operations being studied  to establish
     a true cause-effect relationship.

68.  Petrocelli,  S.  R., and J. W. Anderson.  1976.  Distribution  and
     Translocation of Residues of Dieldrin—A Chlorinated Hydrocarbon
     Insecticide—Among Water, sediments,  and Estuarine Organisms from  San
     Antonio Bay.  In:  Shell Dredging and Its Influence on Gulf  Coast
     Environments, A. H. Bouma, ed.  Gulf  Publishing Co., Houston,  Texas,   pp.
     185-218.

     Clams (Rangia cuneata) and oysters (Grassestrea virginica) were collected
     from Hynes Bay, Texas, and exposed to sediment which had been collected
     from the same area and later spiked with 86.56 yg/kg 14c-dieldrin.   After
     exposures of 6 to 96-hours in flow-through systems, clams accumulated up
     to 17 pg/kg  and oysters accumulated 20 yg/kg dieldrin,  which was 20  and
     23% of the sediment level of dieldrin, respectively.

69.  Plumb, R. H., Jr.  1976.  A Bioassay  Dilution Technique to Assess  the
     Significance of Dredged Material Disposal.  Misc.  Pap.  D-76-6,  U.S.  Army
     Engineers Waterways Experiment Station, Vicksburg,  Mississippi. 16  pp.

     A modification of a typical algal response test was conducted with
     dilution of  nutrients throughout the exposure period to simulate the
     dilution that takes place during the  disposal of dredged material  in open
     water.  The  author concluded that the algae  was not significantly
     affected when the dilution rate at the open-water  site was considered.

70.  Prater, B. L.,  and M. A. Anderson.  1977. A 96-hour Sediment Bioassay of
     Duluth and Superior Harbor Basins (Minnesota) Using Hexagenia limbata,
     Asellus communis, Daphnia magna, and Pimephales promelas as  Test
     Organisms.  Bull. Environ. Contain, and Toxicol., 18(2) :159-169.

     Laboratory bioassays  were conducted using sediments collected from
     Duluth, Minnesota, and Superior, Wisconsin,  harbors in Lake  Superior.
     Hexagenia limbata, Asellus communis,  Daphnia magna, and Pimephales
     promelas were held in a recirculating system in the presence of sediment.
     Mortality after 96-hour exposures ranged from 0 to 75%,  depending  on
     origin of sediment.  D. magna were the most  sensitive organisms, followed
     by H. limbata,  A. communis,  and P. promelas.  Of the chemical parameters
     measured, no one parameter appeared responsible for observed mortality.

71.  Prater, B. L.,  and M. A. Anderson.  1977. A 96-hr Bioassay  of  Otter
     Creek, Ohio.  J. Water Pollut. Control Fed., 49(10):2099-2106.

     A recycling  bioassay  apparatus was developed and tested for  use in
     exposing aquatic organisms to sediments in the laboratory.   After  96-hr
     exposure to  sediments collected in Otter Creek,  Ohio,  mortality was
     measured in  Hexagenia limbata, Asellus communis, and Daphnia magna.
     Sediment analysis revealed high concentrations of  various metals at
     several sampling stations;  organic contaminant concentrations were mostly
                                     29

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     below detection limits.   The apparatus  consisted  of a rectangular glass
     tank which housed the organism and sediment.  Water recirculated through
     two, 4-liter glass jars  by siphon and into the  test tank via an air lift.
     Mortality ranged from 0  to 100% in all  three organisms with D. magna
     being sensitive.

72. Prater, B. L., and R.  A.  Hoke.  1979.  Statistical analyses of bulk
     sediment, elutriate,  and bioassay sediment evaluation procedures.  U.S.
     Army Corps of Engineers  Waterways Experiment Station, Vicksburg,
     Mississippi.  Contract No. DACW39-79-M-3098.  Final Report 206 p.

     Recycling bioassays,  bulk chemical analyses and elutriate analyses were
     conducted on sediments collected from five Lake Michigan harbors ranging
     from lightly to heavily  polluted.  Results of tests with three species of
     invertebrates and one fish species were subjected to bivariate and
     canonical correlations to examine which tests and parameters correlate
     with one another and  to  possibly reduce the number of chemical variables
     considered.  The results indicated that mortality of the three
     invertebrate species  in  bioassay testing was more related to bulk
     sediment analyses than to elutriate chemistry.  These conclusions were
     based mostly on heavy metals present in sediment  as organic contaminants
     were not analyzed. Total volatile solids,  oil  and grease, TKN, and NH3,
     were found to be related to test organism mortality.  Results of these
     tests however, may have  been affected by the fact that sediments were
     frozen prior to testing, which may have altered sediment chemistry.

73.  Prouse, N. J., and D. C. Gordon, Jr.  1976. Interactions Between the
     Deposit Feeding Polychaete Arenicola marina and Oiled Sediment.  In:
     Sources, Effects and  Sinks of Hydrocarbons in the Aquatic Environment.
     American Institute of Biological Sciences, pp. 407-422.

     Arenicola worms were  tested in the laboratory in  sediments artificially
     oiled with No. 2 fuel oil.  Concentrations over 100 jjg/g oil in sediment
     caused worms to leave their burrows, while 10 yg/g concentrations
     decreased the rate of cast production.

74.  Qasim, S. R., A. T. Armstrong, J. Corn, and B.  L. Jordan.  1980.  Quality
     of Water and Bottom Sediments in the Trinity River.  Water Res. Bull.,
     16(3):522-531.

     Laboratory elutriate  tests were conducted using sediments collected from
     the Trinity River (Texas).  Acute toxicity tests  (96-hr) were performed
     on Daphnia magna with 6  and 20% elutriates, with  raw river water serving
     as a control.  Results of these static  tests revealed lowest survival by
     Daphnia in control water.  Elutriation  improved water quality by lowering
     the concentrations of nitrogen, phosphorus, carbon and heavy metals.  The
     extent to which these substances were removed depended on both the
     saturation state and  adsorptive capacity of the sediments.

75.  Reimold, R. J., and C. J. Durant.  1974.  Toxaphene Content of Estuarine
     Fauna and Flora Before,  During and After Dredging Toxaphene-Contaminated
     Sediments.  Pestic. Monit. J., 8(1):44-49.
                                      30

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     A field study was conducted in which samples of sediment,  cordgrass
     (Spartina alterniflora), oysters (Crassostrea virginica),  and mummichog
     (Fundulus heteroclitus) were collected before,  during,  and after
     dredging.  The authors found no increase in toxaphene concentrations  in
     oysters throughout the period of dredging activity.   Some  increases were
     observed, however, in the cordgrass and mummichogs.   Maximum
     concentrations measured in cordgrass leaves and mummichogs were 36.3
     dry weight and 217.1  yg/g wet weight,  respectively.

76.  Renfro, W. C.  1973.   Transfer of 65zn from Sediments by Marine
     Polychaete Worms.  Mar. Biol., 21:305-316.

     "Silty marine sediments spiked with 65zn lose only small fractions  of
     their radioactivity when exposed to slowly flowing seawater for several
     weeks.  However,  polychaete worms (Nereis diversicolor), burrowing
     through the sediment, cause 65Zn losses 3 to 7 times higher than in
     sediment without worms.  Long-term experiments on the uptake and loss of
     65zn by the polychaete Hermione hystrix indicate that 60 or more days
     exposure are required for this worm to approach steady  state with 65zn in
     the sediment.  Biological half-life estimates for 65zn  accumulated  from
     sediment by H. hystrix are extremely variable (52 to 197 days),  depending
     on the loss-time interval chosen for the calculation.  Following 5  days
     exposure to 16 cm3 of radioactive sediment,  N.  diversicolor individuals
     contained an average  of 0.2% of the total 65Zn in the sediment.   When
     these worms were transferred to non-radioactive sediment,  estimates of
     biological half-life  for *>^Zn averaged 14 to 17 days during the loss
     period Day 3 to Day 15.  Based on these experimental results,  it is
     estimated that a population of N. diversicolor could cause an annual  loss
     of 3% or more of  the  6^Zn in the Upper 2 cm of  the sediment of a
     hypothetical radioactive estuary."   (author abstract)

77.  Rose, C. D., and T. J. Ward.  1981.  Principles of Aquatic Hazard
     evaluation as Applied to Ocean-Disposed Wastes.  In:  Aquatic Toxicology
     and Hazard Assessment:  Fourth Conference,  ASTM STP  737, D.  R.  Branson
     and K. L. Dickson,  eds.   American Society for Testing and  Materials,  pp.
     138-158.

     "The effects-based criteria identified in the 1977 ocean dumping
     regulations and associated guidelines  for evaluating potential hazard of
     ocean-disposed wastes to aquatic organisms  are  reviewed.   The use of
     these criteria, which provide for bioassay-based limiting  permissible
     concentrations for physical phases  of  wastes to be compared with
     estimated environmental concentrations of the phases, is demonstrated in
     case studies of  two wastes (acid-iron  wastewater and dredged material)
     that are dumped in the ocean and one waste  (formation water)  that is
     discharged from an ocean outfall.  The case  studies  present Lagrangian
     (exposure-time-dependent)  assessments  of the potential  hazard of
     ocean-disposed wastes to plankton,  as  well as Eulerian  (exposure-time-
     independent)  evaluations of the potential hazard to  nonplanktonic
     organisms.   A plume study and models of different levels of
     sophistication are  employed to estimate environmental concentrations of
     ocean-disposed materials"   (author  abstract)


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78.  Rubinstein,  N.  I.,  C.  N.  Asaro,  and C.  Sommers.   The Effects of
     Contaminated Sediments on Representative  Estuarine  Species and Developing
     Benthic Communities.   In:  Contaminants and  Sediments, Vol. 1 , R. A.
     Baker,  Ed.  Ann Arbor  Science, Ann Arbor,  Michigan,  pp.  445-461.

     Laboratory studies  were conducted using 10-gal aquaria receiving
     unfiltered sea  water in a flow-through  system.   Tests were conducted  for
     28 days and measurements were made of survival of tnysids, shell
     deposition and  bioaccumulation of known contaminants by oysters,
     substrate reworking and bioaccumulation by lugworms, and  the resiliency
     of the  benthic  community in terms of numbers and variety  of macrofaunal
     organisms that  settled onto test sediments from  planktonic larvae within
     the exposure period.   Sediments  containing kepone were used and effects
     including mortality, decreased shell growth, decreased sediment
     reworking, and  less colonization of kepone containing sediments were
     observed.  Oysters  and lugworms  accumulated  kepone.  The  author concluded
     that "Introduction  of  this material into  the marine environment, even at
     the lowest concentration, could  have an adverse  impact on marine biota at
     the disposal site."

79.  Rubinstein,  N.  I.,  E.  Lores,  N.  R. Gregory.   1983.  Accumulation of PCBs,
     Mercury and Cadmium by Nereis virens, Mercenaria mercenaria and
     Palaemonetes pugio  from contaminated harbor  sediments.  Aquatic
     Toxicology.  In Press.

     "Accumulation of polychlorinated biphenyls (PCBs),  mercury, and cadmium
     by sandworms (Nereis virens), hard clams  (Mercenaria mercenaria), and
     grass shrimp (Palaemonetes pugio) exposed to contaminated sediments from
     four sites in New York Harbor was studied for a  100-day period.  Of the
     three contaminants  monitored, only PCBs were found  to bioaccumulate above
     background (control)  concentrations.  Small  increases in  PCB body burden
     were detected in M. mercenaria  and P^. pugio, whereas higher
     concentrations were measured in N^. virens.  Uptake  was affected by  the
     organic content of  the sediment.  Bioaccumulation factors (concentration
     in tissue/concentration in sediment) for  N^.  virens  ranged from 1 .59 in a
     low organic sediment to 0.15 in a high organic sediment.   Results  from
     this study support the contention that sediment concentration  alone does
     not reflect bioavailability and that toxicity tests (bioassays)  and  field
     monitoring remain the most direct method for estimating  bioaccumulation
     potential of sediment-bound contaminants."   (author abstract)

80.  Schiemer, E. W., J. R. Schubel,  and G.  M. Schmidt.   1971.  A Laboratory
     Apparatus for Maintaining Uniform Suspensions of Fine-Grained Sediment.
     Tech. Rep. 70, Chesapeake Bay Institute,  The John Hopkins University,
     Baltimore, Maryland.  9 pp.

     The system described  in  this paper was designed  to measure the effects of
     suspended sediments on fish eggs.  The system employed a
     vertically-reciprocating, horizontal plate with  an intermittent flow of
     the sediment slurry through the  exposure tanks.  No data were provided to
     substantiate the performance of  the system when  eggs were hatched in the
     suspension.
                                      32

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81.  Schubel, J. R.,  A. H. Auld, and G. M. Schmidt.   1974.   Effects  of
     Suspended Sediment on the Development and Hatching Success  of Yellow
     Perch and Striped Bass Eggs.  Spec. Rep.  35,  Chesapeake  Bay Institute,
     March 1974.  1 2 pp.

     A laboratory study was conducted to evaluate  the effects of resuspended
     sediments on hatching success of yellow perch and striped bass eggs.
     Fine grained sediments collected from Chesapeake Bay were resuspended
     mechanically before intermittent introduction into aquaria  holding  eggs.
     Suspended solid concentrations of 50,100 and  500 mg/1 had no effect on
     hatching success, while 1000 mg/1 significantly  reduced  success.  The
     authors stated that the highest concentration tested rarely occurred in
     nature, even in areas of dredging activity.

82.  Schubel, J. R., and J. C. S. Wang.  1973.  The Effects of Suspended
     Sediment on the Hatching Success of Perca flavescens (Yellow Perch),
     Morone americana (White Perch),  Morone saxatilis (Striped Bass),  and
     Alosa pseudoharengus (Alewife) Eggs.  Spec. Rep. 30, Reference 73-3,
     Chesapeake Bay Institute, January 1973.  77 pp.

     This laboratory study revealed that suspended sediment concentrations of
     up to 500 mg/1 had no significant effect on hatching success of  these
     four species.  Sediments were collected from  upper Chesapeake Bay;
     however, no contaminant analyses were performed  on any samples.

83.  Seelye, J. G., R. J. Hesselberg, and M. J. Mac.   1982.   Accumulation by
     Fish of Contaminants Released from Dredged Sediments. Environ.  Sci. and
     Technol., 16(8):459-464.

     "Inasmuch as the process of dredging and disposing of dredged materials
     causes a resuspension of these materials and  an  increase in
     bioavailability of associated contaminants, we conducted a  series of
     experiments to examine the potential accumulation by fish of contaminants
     from suspended sediments.  In the first experiment we compared
     accumulation of contaminants by yellow perch  of  hatchery and lake origin
     and found that after 10 days of  exposure to non-aerated  sediments,  fish
     of hatchery origin accumulated PCBs and Fe, while fish of lake origin
     accumulated As, Cr, Fe, and Na.   Two additional  exposures were conducted
     to evaluate the effects of aerating the sediments prior  to  measuring
     bioavailability of associated contaminants.   Fish of hatchery origin
     exposed to non-aerated sediments for 10 days  accumulated PCBs and Hg,
     while fish of hatchery origin exposed to aerated sediments  for 10 days
     accumulated PCBs, DDE, Zn, Fe, Cs, and Se. These results not only
     demonstrated the potential for uptake of  contaminants by fish as  a  result
     of dredging, but also the potential utility of fish bioassays in
     evaluating proposed dredging operations."  (author abstract)

84.  Sherk, J. A., Jr.,  and L. E. Cronin.  1970.   The Effects of Suspended and
     Deposited Sediments on Estuarine Organisms.   Reference No.  70-19,
     University of Maryland Natural Resources  Institute.   61  pp.
                                    33

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     This literature review on sediment effects  in estuaries  contains over 40
     references related to dredging activities.   The  review concentrated on
     coastal engineering projects and the authors concluded that  little
     information was available on biological effects.

85.  Sherwood,  M. J.  1976.  Fin Erosion Disease Induced  in the Laboratory.
     1976.  In:  Coastal Water Research Project  Annual Report, 1976, Southern
     California Coastal Water Research Project,  El Segundo, California,  pp.
     149-153.

     Dover sole (Microstomus pacificus) were held in  the  laboratory for 13
     months over either contaminated sediments collected  from the Palos Verdes
     (California) shelf, or over silica sand. The Palos  Verdes sediments were
     characterized by high concentrations (mg/dry kg) of  DDT  (120), PCBs
     (5.0), and metals.  Fish held in tanks  with contaminated sediment showed
     early signs in fish erosion as well as  elevated  levels of DDT and PCBs,
     compared to control fish.

86.  Shin, E. B., and P. A. Krenkel.  1976.   Mercury  Uptake by Fish and
     Biomethylation Mechanisms.  J. Water Pollut. Control Fed., 48(3):473-501.

     A series of laboratory exposures of Poecilia reticulatus and Gambusia
     affinis to artificial sediments spiked  with HgCl2 or H9S were conducted
     to examine the effects of various environmental  conditions on
     methylmercury uptake.  Factors that enhanced methylmercury uptake by fish
     included:   use of HgCl2 rather than HgS, higher  water temperature, Cl~
     ion concentration in water of 200 mg/1,  and higher sediment
     concentrations of mercury.  Other factors affecting  uptake were sediment
     microorganism density, sorption characteristics  of sediment  and form of
     mercury present.

87.  Shuba, P.  J., J. H. Carroll, and H. E.  Tatem. 1976. Bioassessment of
     the Standard Elutriate Test.  Misc. Pap. D-76-7, U.S. Army Engineers
     Waterways  Experiment Station,  Vicksburg, Mississippi.  29 pp.

     Laboratory studies were conducted with  algae, bacteria and protozoans
     exposed to elutriate water.  Tests were run for  8 to 14  days under static
     conditions.  The authors concluded that the algal assay  procedure was a
     useful method, but the results of the bacteria and protozoa  assays were
     too variable to be useful.

88.  Shuba, P.  J., J. H. Carroll, and K. L.  Wong.  1977.  Biological
     Assessment of the Soluble Fraction of the Standard Elutriate Test.  Tech.
     Rep. D-77-3, U.S. Army Engineers Waterways  Experiment Station, Vicksburg,
     Mississippi.  109 pp.

     Laboratory studies were conducted using sediments from Ashtabula, Ohio;
     Galveston, Texas; and Mobile, Alabama.   The tests conducted  included
     bioassays using algae, bacteria and protozoans with  measurements of
     biomass change or respiration.  Only metals and  nutrients were measured
     in the elutriate test.  Static tests with appropriate dilutions of
                                      34

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     elutriate water were used, lasting from 8 to 18 days.   The algae did  not
     respond to elutriate waters, while the response of bacteria and protozoa
     was not predictable.

89.  Shuba, P. J., S. R. Petrocelli,  and R. E. Bentley.  1981.   Considerations
     in Selecting Bioassay Organisms for Determining the Potential
     Environmental Impact of Dredged Material.  Tech. Rep.  EL-81-8,  U.S. Army
     Engineers Waterways Experiment Station, Vicksburg, Mississippi.  94 pp.

     The report presents the following factors for consideration in  selecting
     bioassay organisms:

      1.  The organism if found at the disposal site.
      2.  The organism is readily available through field collecting or
          purchasing.
      3.  A toxicological data base exists for the organisms.
      4.  Response to the same toxicant is reproducible.
      5.  The organism can be maintained in a healthy condition in the
          laboratory.
      6.  The organism can be cultured and will reproduce under laboratory
          conditions.
      7.  The organism can be used in major types of bioassays.
      8.  The organism occurs over a wide geographic area.
      9.  The organism is economically or ecologically important.
     10.  The organism is compatible with other test species.

     The authors present a literature review on a number of topics relative to
     biological testing of sediment quality.

90.  Shuba, P. J., H. E. Tatem, and J. H. Carroll.  1978.  Biological
     Assessment Methods to Predict the Impact of Open-Water Disposal of
     Dredged Material.  Tech. Rep. D-78-50, U.S. Army Engineers Waterways
     Experiment Station, Vicksburg, Mississippi.  162 pp.

     Laboratory toxicity and growth tests were conducted with a variety of
     benthic or planktonic invertebrates.  Toxicity tests were  conducted for
     96 hours, while growth studies were run for 33 days.  All  tests were
     conducted under static conditions.   Results varied depending  on the level
     of contaminants in the sediments,  the sensitivity of the test organism,
     and the duration of the exposure.   Clams and shrimp were exposed to PCB
     contaminated sediments and both showed significant accumulation of PCBs
     after 14 days.

91.  Slotta,  L. S.  1973.  Dredging Problems and Complications.  In:   Coastal
     Zone Management Problems,  Oregon State University,  January 1974.  pp.
     39-52.

     A brief literature review  on dredging effects with emphasis on  estuarine
     ecosystems.   Little information  is  presented on effects of contaminated
     sediments.
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92.  Southworth,  G.  R.,  B.  R.  Parkhurst,  and  J. J.  Beauchamp.  1979.
     Accumulation of Acridine  from Water,  Food, and Sediment by the Fathead
     Minnow Pimephales promelas.   Water Air Soil Pollut., 12:331-341.

     Fathead minnows were exposed  in  the  laboratory to sediments containing
     acridine,  a  synthetic  fuel by-product.   Minnows were exposed to sediments
     containing 113  _+_ 4  yg/g acridine (dry) for 107 days.  Water concentration
     of acridine  equilibrated  at about 10 yg/1.  Fish concentrated acridine to
     1.4 yg/g for a  concentration  factor  (based on  water concentration) of
     139.5.  This was equal to concentration  factors found at higher water
     concentrations  without sediment.

93.  Stout, V.  F., and L. G. Lewis.   1977. Aquatic Disposal Field
     Investigations, Duwamish  Waterway Disposal Site, Puget Sound, Washington,
     Appendix B:   Role of Disposal of PCB-Contaminated Sediment in the
     Accumulation of PCB's  by  Marine  Animals. Tech. Rep. D-77-24, U.S. Army
     Engineers  Waterways Experiment Station,  Vicksburg, Mississippi, November
     1977.  77  pp.

     A field study was conducted to examine PCB uptake by aquatic organisms at
     a dredge disposal site.  Indigenous  animals, English sole (Paraphrys
     vetulus) and pink shrimp  (Pandolus borealis and P. jordani) analyzed for
     PCBs before  and after  the disposal were  not found to be affected by the
     disposal.  Additional  animals were caged at the disposal site and
     analyzed for PCBs:   spot  shrimp  (P.  platyceros), sea cucumber
     (Parastichopus  californicus), and mussel (Mytilus edulis).  Only mussels
     showed a small  increase in PCB concentration during disposal and the
     authors concluded that no obvious changes in PCB levels were occurring in
     Elliot Bay organisms.   Initial PCB concentrations in the organisms were
     relatively high, however, and the PCB influx from the Duwamish River may
     well have masked possible bioaccumulation at the disposal site.

94.  Swartz, R. C.,  W. A. DeBen, and  F. A. Cole.  1979.  A Bioassay for the
     Toxicity of  Sediment to Marine Macrobenthos.   J. Water Pollut. Control
     Fed., 51(5):944-950.

     Laboratory toxicity tests were conducted with  sediments from 9 areas and
     with 5 marine benthic macroinvertebrates. Organisms were acclimated to
     control sediments,  then covered  with a  layer of the test sediment.  A
     continuous flow of  seawater was  maintained except during a one-hour
     period right after  the test sediments were added.   All tests were
     conducted for 10 days as  required in the "Ocean Dumping Implementation
     Manual."  Effects  of burial were minimal, with all  organisms showing less
     than 10% mortality  due to burial with no substantial differences in
     mortality between depths  of burial.   The results of toxicity tests appear
     quite precise;  however, no relationship was  measured between toxicity and
     contaminants present.

95.  Sweeney, R.  A.   1978.  Aquatic  Disposal Field  Investigations, Ashtabula
     River Disposal Site, Ohio, Appendix A:   Planktonic  Communities, Benthic
     Assemblages, and Fishery.  Tech. Rep. D-77-42, U.S. Army Engineers
     Waterways Experiment Station, Vicksburg, Mississippi.   330 pp.
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     Gillnets and fathometric surveys were used to determine relative
     abundance of fish at nearshore and offshore areas.   Pre- and  post-larval
     disposal surveys were conducted.  Effects on adult  fish ranged  from
     slight avoidance of the initial disposal to migrating actively  from  the
     site but returning within 15 min.  No long-term effects were  noted.

96.  Tatem, H. E.  1980.  Exposure of Benthic and Epibenthic Estuarine Animals
     to Mercury and Contaminated Sediment.  Contaminants and Sediments, Vol.
     1, R. A. Baker, eds.  Ann Arbor Science, Ann Arbor,  Michigan,   pp.
     537-549.

     Laboratory tests were conducted using organisms collected along the  Gulf
     Coast.  Test sediments were collected along the Houston Ship  Channel and
     other Gulf Coast locations.  Exposures of organisms were performed under
     static conditions for 8-25 days.  Mortality was measured under  a variety
     of exposure conditions, including exposures of organisms to dissolved
     mercury with sediments present, and exposure of organisms to  sediments
     with high metals and organic contaminants.  Results of these  exposures
     demonstrate high variability of bioassay results.

97.  Titus, J. A., J. E. Parsons, and R. M. Pfister.  1980.  Translocation of
     Mercury and Microtaial Adaptation in a Model Aquatic System.   Bull.
     Environ. Contam. and Toxicol., 25;456-464.

     In a model ecosystem, sediments were spiked with a  1  g lobule of metallic
     mercury.  Sediment, plankton, gastropods, and goldfish were analyzed to
     follow movement of mercury in the system.  Mercury  had moved  through all
     sediments in 7 weeks, and had equilibrated in water after 12  weeks.
     Detectable levels of mercury were found in plankton after 10  weeks.
     During weeks 12 through 40, Hg in snails and goldfish accumulated
     concentrations up to 1000 times that in water.

98.  Trefry, J. H., R. R. Sims, Jr., and B. J. Presley.   1976. The  Effects of
     Shell Dredging on Heavy Metal Concentrations in San Antonio Bay.  In:
     Shell Dredging and Its Influence on Gulf Coast Environments,  A. H. Bouma,
     ed.  Gulf Publishing Co., Houston, Texas,  pp. 161-184.

     Sediments, water, and aquatic organisms were collected from dredged  and
     undredged areas of San Antonio Bay (Texas) and analyzed for heavy metals.
     Although no samples were collected during a dredging activity,  the
     authors concluded that dredging had no effect on metal availability  to
     organisms.  This conclusion was based on the fact that metal  levels  in
     all samples from dredged areas were relatively low  compared to  undredged
     areas.

99.  Trident Engineering Associates, Inc.  1977.  Evaluation of the  Problem
     Posed by In-Place Pollutants in Baltimore Harbor and Recommendation  of
     Corrective Action.  EPA 440/5-77-015B, U.S. Environmental Protection
     Agency, Office of Water Planning and Standards.  77 pp.
                                     37

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      Laboratory toxicity tests were run  using  2  species of  fish and a species
      of clam.   Static tests were  conducted  using a  small pump  to mix water and
      sediment in the tanks.  Organisms were screened  from contact with bedded
      sediment.  Tests were run for  48 h  with fish and for 96 h with clams.
      Bioassay  results were significantly correlated with bulk  measurements of
      metals,  PCBs,  and hexane extractables. A definite dose response was
      measured  with the initial effects attributed to  chemicals present,
      followed  by physical effects adding to the  chemical effects after a
      certain point.

100.   U.S.  Environmental Protection  Agency.   1976.   Bioassay Procedures for the
      Ocean Disposal Permit Program.  Environmental  Research Laboratory, Gulf
      Breeze-Narragansett-Corvallis.  96  pp.

      Nine  laboratory procedures are described  for testing the  toxicity of
      waste materials considered for ocean disposal.  Both static and
      flow-through tests are included. The  methods  cover the use of a range of
      trophic  levels as test organisms from  algae to fish.   Six of the
      procedures are for acute toxicity measurements and the other three are
      termed "special" or chronic  studies that  are not recommended for routine
      use.   None of the methods was  designed for  measuring bioaccumulation.

101.   U.S.  Environmental Protection  Agency/Corps  of  Engineers Technical
      Committee on Criteria for Dredged and  Fill  Material.   Ecological
      Evaluation of Proposed Discharge of Dredged Material into Ocean Waters;
      Implementation Manual for Section 103  of  Public  Law 92-532  (Marine
      Protection, Research,  and Sanctuaries  Act of 1972).  July 1977 (Second
      Printing  April 1978),  Environmental Effects Laboratory, U.S. Army
      Engineer  Waterways Experiment  Station, Vicksburg, Mississippi.

      This  manual provides summaries and  discussions of the  procedures for
      evaluation of dredged material prior to disposal in the ocean, as
      required  by the Federal Register.   A general approach  section consists of
      rationale behind the technical evaluation process which includes tests of
      liquid phase, suspended particulate phase,  solid phase, bioaccumulation,
      initial  mixing, trace contaminants, and compatibility  with disposal site.
      Appendices in the manual provide detailed methods for  the various tests.

102.   Varanasi, U., and D. J. Gmur.   1981.  Hydrocarbons and Metabolites in
      English  Sole (Paraphrys vetulus) Exposed  Simultaneously to  3jj
      Benzo[a]Pyrene and 14C Naphthalene  in  Oil-Contaminated Sediment.  Aquat.
      Toxicol., 1:49-67.

      Sediments artificially oiled with radioactive  benzola]pyrene and
      naphthalene in Prudhoe Bay crude oil were placed in tanks with English
      sole  in the laboratory.  After 24-  and 168-h exposures, both compounds
      were  present in tissues and  major organs.  Naphthalene was  taken up to a
      greater extent than benzo[a]pyrene, although naphthalene  concentrations
      decreased in many organs between 24 and 168 h.  Benzotalpyrene was
      metabolized to a great extent  in sole  tissue.
                                       38

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103.  Wentsel,  R.,  A.  Mclntosh,  and V.  Anderson.   1977.   Sediment Contamination
      and Benthic Macroinvertebrate Distribution  in a Metal  Impacted  Lake.
      Environ.  Pollut.,  14(3):187-193.

      Samples of sediment and benthic invertebrates were collected  from  five
      sites in a eutrophic lake  in Indiana.   Numbers and species  of
      invertebrates were enumerated and sediments analyzed for Cd,  Zn, and Cr.
      Two sites near an  industrial effluent  had extremely high concentrations
      of all three  metals and were also characterized by large numbers of
      Limnodrilus sp.  and very few chironomids.  The other three  sites became
      progressively lower in metal concentrations as they increased in distance
      from the point source and  also exhibited decreasing numbers of
      Limnodrilus and  increasing numbers of  chironomids.

104.  Wright, T. D.  1978.  Aquatic Dredged  Material Disposal Impacts.   Tech.
      Rep. DS-78-1, U.S. Army Engineers Waterways Experiment Station,
      Vicksburg, Mississippi,  August 1978.   57 pp.

      A summary of  the findings  obtained from field investigations  of five
      aquatic disposal projects.  The author points out  the  site-specificity of
      impacts,  implying  that results are not conclusive  for  all cases.
      Releases of some toxic substances were measured (PCBs,  manganese,
      ammonia); however, no bi©accumulation  was measured. No toxic effects
      were measured, but the author stated that they could not be ruled  out.

105.  Wyeth,  R. K., and  R. A.  Sweeney.   1978.  Aquatic Disposal Field
      Investigations,  Ashtabula  River Disposal Site, Ohio, Appendix C:
      Investigation of Water Quality and Sediment Parameters.  Tech.  Rep.
      D-77-42,  U.S. Army Engineers Waterways Experiment  Station,  Vicksburg,
      Mississippi,  July  1978.   344 pp.

      A field study was  conducted to evaluate the effects of  a disposal
      operation in  Lake  Erie off Ashtabula,  Ohio.  Oligochaeta and  fish  were
      analyzed for  trace metals  before  and after  disposal.   Benthos exhibited
      no increase in metals; however, fish showed accumulation of all metals,
      especially Fe, Cd, Ni, and Mn. The magnitude of the increase was
      correlated with  concentrations in sediment.  The authors also reported
      some unreliability of elutriate test data.

106.  Yockim, R. S., A.  R. Isensee,  and G. E. Jones.  1978.   Distribution and
      Toxicity of TCDD and 2,4,5-T in an Aquatic  Model Ecosystem.  Chemosphere,
      3:215-220.

      Artificial silt  loam soil  was treated  with  14C-TCDD (0.1  yg/g)  or
      14C-2,4,5-T  (0.1,  1.0, or  10.0 yg/g) and placed in a recirculating
      ecosystem. Daphnia magna, snails (Helosoma sp.),  algae (Oedogonium
      cardiacum), and  fish (Gambusia affinis) were  added to  the ecosystem and
      sampled periodically from  1-32 days after introduction.  Bioaccumulation
      ratios  (tissue concentration/water concentration)  of 2-6 x  10^ were
      measured  for  organisms exposed to TCDD and  <50 for organisms  exposed to
      2,4,5-T.   High mortality to G. affinis was  observed in  the  TCDD system.
                                     39

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APPENDIX B
     40

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Accumulation s

     Chlorinated hydrocarbons - 3, 16, 17, 20, 22,  32, 33,  34,  54,  59,  62,  64,
                                65, 66, 67, 68, 75, 78, 79, 83, 85,  90,  93,
                                101, 106

     Metals - 3, 4, 6, 7, 10, 11, 15, 16,  23,  26,  27,  31,  34,  36, 37, 40, 41,
              42, 43, 46, 52, 63, 65, 66,  67,  76,  79,  83,  85,  86, 88, 96, 97,
              98, 101, 105

     Petroleum products - 3, 16, 19, 37, 53, 56,  92,  101,  102

Acute Toxicity Tests - 3, 5, 10, 11, 12, 14, 15,  16,  18,  19, 23, 24,  29, 30,
                       38, 45, 48, 49, 55, 57, 58,  65, 66,  70,  71,  74,  78,  79,
                       87, 88, 90, 94, 96, 99, 100, 101,  106

Community Changes - 21, 26,  35, 44, 60, 78, 88, 95, 103

Physiological Effects - 3, 12, 18, 24, 26, 29, 56,  60, 67,  73,  78,  85, 90,
                        100, 102

Reviews - 8, 13, 25, 37,  39, 47, 50, 61, 77, 84, 89, 91,  100,  101,  104

Sediment Chemistry - 1, 9, 28, 32, 40, 41, 51, 52,  54, 72,  83,  86, 97

Test Organisms;

     Aquatic plants - 26, 41, 46,  47,  60,  67,  69, 75

     Benthic invertebrates - 3, 4, 6,  7, 12, 14, 16, 19, 20, 22, 23, 24, 26,
                             29, 30, 33, 34, 38, 40, 41, 44, 45, 52f 53, 54,
                             55, 57, 58, 59, 62, 63, 64, 65, 66, 67, 70, 71,
                             72, 73, 75, 76, 78, 79, 90, 93, 94, 97, 99, 100,
                             103,  105, 106

     Eggs - 2, 5, 67,  80, 81, 82

     Fish - 2, 3, 10,  15, 16, 17,  27,  31,  32,  36, 38,  40, 41, 42, 43, 45, 55,
            56,  65,  66, 67,  68,  70,  72,  75,  83, 85, 86, 92, 93, 97, 99, 100,
            102, 105,  106

     Zooplankton - 3,  12, 14, 18,  29,  30,  38,  45, 55,  57, 66, 70, 71, 74, 78,
                   79,  87, 88,  90,  97,  100,  106
                                     41

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APPENDIX C
      42

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Allen, J. L., 55
Anderson, C. A., 3
Anderson, J. W., 68
Anderson, N. A., 70, 71
Anderson, V., 103
Armstrong, A. T., 74
Armstrong, D. K., 1
Asaro, C. N., 78
Auld, A. H., 2, 81
Bahnick, D. A., 3
Beasley, T. M., 4
Beauchamp, J. J., 92
Bechtel, T. J., 62
Beeton, A. M., 29, 30
Bentley, R. E., 89
Bills, T. D., 55
Birge, W. J., 5
Bissonnette, P., 6
Black, J. A., 5
Blackman, R. R., 64
Boddington, M. J., 7
Brannon, J. M., 8, 9
Brewer, G. D., 10
Brown, D. W., 56
Bryan, G. W., 11
Buikema, A. L., Jr., 12
Cairns, J., Jr., 12
Call, D. J., 3
Carlson, C. A., 47
Carr, M. I., 14
Carroll, J. H., 87, 88, 90
Canter, L. W., 13
Cardwell, R. D., 14
Chamberlain, D. W., 15
Chang, K., 16
Chu-Fa, T., 16
Cole, F. A., 94
Copper, C. L., 35
Corn, J., 74
Cornell, D. R., 13
Courtney, W. A. M., 17
Cronin, L. E., 16, 84
Dawson, V. K., 55
DeBen, W. A., 94
DeCoursey, P. J., 18
DeFreitas, A. S. W., 7
DiSalvo, L. H., 19, 37
Dobler-Lang, B., 44
Durant, C. J., 20, 75
Duyvejondc, J., 21
Elder, D. L., 22
Emerson, R. R., 23, 24
Engler, R. M., 9, 25
Fay, R. R., 67
Feng, S. Y., 26
Flatness, D. E., 1
Foster, R. S., 63
Fowler, S. W., 4, 22
Francis, P. C., 5
Fujiki, M., 27, 36
Fulk, R., 28
Gannon, J. E., 29, 30
Gibson, A., 66
Gillespie, D. C., 31
Gmur, D. J., 102
Gordon, D. C., Jr., 73
Gregory, N. R., 79
Gronlund, W. D., 56
Gruber, R. D., 28
Guard, H. E., 19
Halter, M. T., 32
Harris, R. C., 51
Haven, D. S., 33
Hawkes, J. W., 56
Hazen, R. E., 41
Heit, M., 34
Herdendorf, C. E., 35
Hesselberg, R. J., 83
Hirota, R., 27, 36
Hirsch, N. D., 19, 37
Hodgins, H. O., 56
Hoeppel, R. E., 47
Hoke, R. A., 38, 72
Homer, D. H., 49
Hudson, J. E., 5
Hummerstone, L. G., 11
Hunt, P. G., 9, 47
Ikegaki, N., 36
International Working Group
     on the Abatement and
     Control of Pollution
     from Dredging
     Activities, 39
Isensee, A. R., 106
Jenne, E. A., 52
Jernelov, A., 40
Johnson, H. E., 32, 54
Jones, G. E., 106
Jordan, B. L., 74
Klehr, E. H., 13
Klusek, C. S., 34
Kneip, T. J., 41
Krenkel, P. A., 86
Kudo, A., 42, 43
Kushner, D. J., 46
                                      43

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Laguros, J. W., 13
Lang, C., 44
Langston, W. J., 17
Laskowski-Hoke, R. A., 45
Laube, V., 46
Lee, C. R., 47
Lee, G. F., 48, 49, 50
Lewis, L. G., 93
Lindberg, S. E. , 51
Lopez, J. M., 48, 49
Lores, E., 79
Luoma, S. N., 52
Lyes, M. C., 53
Lynch, T. R., 54
Mac, M. J., 83
Mariani, G. M., 48, 49
Markee, T. P., 3
Marking, L. L., 55
McCain, B. B., 56
McConaugha, J. R., 57
McFarland, V. A., 65
Mclntosh, A., 103
McLeese, D. W., 58, 59
Metcalfe, C. D., 58, 59
Miller, D. R., 7
Miller, G. D., 13
Miller, K. M., 34
Moore, J. W., 60
Morales-Alamo, R., 33
Morris, R. T., 3
Mortimer, D. C., 43
Morton, J. W., 61
Myers, M. S., 56
Nathans, T. J., 62
Neff, J. W., 63
Ng, J., 19
Nimmo, D. R., 64
Parkhurst, B. R., 92
Parsons, J. E. , 97
Peddicord, R. K., 37, 65, 66
Pedron, S., 66
Pequegnat, W. E., 67
Perry, J. J., 1
Petrocelli, S. R., 68, 89
Pezzack, D. S., 59
Pfister, R. M., 97
Piwoni, M. D., 49
Plumb, R. H., Jr., 50, 69
Polikarpov, G. G., 22
Prater, B. L., 38, 45, 70, 72
Presley, B. J., 98
Prouse, N. J., 73
Qasim, S. R., 74    ;
Rach, J. J., 55
Ramamoorthy, S., 46
Reimold, R. J., 20, 75
Renfro, W. C., 76
Richardson, J. S., 49
Rose, C. D., 77
Rose, J. R., 9
Rubenstein, N. I., 78, 79
Rutherford, C. L., 12
Saleh, F., 49
Sanborn, E. W., 14
Schiemer, E. W., 80
Schmidt, G. M., 80, 81
Schubel, J. R., 2, 80, 81, 82
Scott, D. P., 31
Seelye, J. G., 83
Shaeffer, J., 16
Sherk, J. A., 84
Sherwood, M. J., 85
Shin, E. B., 86
Shuba, P. J., 87, 88, 89, 90
Sims, R. R., Jr., 98
Slotta, L. S., 91
Slowey, J. F., 63
Smith, I., 9
Sommers, C., 78
Southworth, G. R., 92
Stout, V. F., ,93
Streebin, L. E., 13
Swartz, R. C., 94
Sweeney, R. A., 93, 105
Swenson, W. A., 3
Tajima, S., 36
Tatem, H. E., 66, 87, 90, 96
Titus, J. A., 97
Trefry, J. H., 98
Trident Engineering
     Associates, Inc., 99
U.S. Environmental Protection
     Agency, 100, 101
Vandermeulen, J. H., 56
Varanasi, U., 102
Vernberg, W. B., 18
Wang, J. C,. S., 82
Ward, T. J., 77
Wastler, T. A., 67
Welch, J., 16
Wentsel, R., 103
Westerman, A. G., 5
Wilson, A. J., Jr., 64
Wilson, P. D., 64
Woelke, C. E., 14
Wong, K. L., 88
                                      44

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Wright, T. D., 104
Wullschleger, R., 28
Wyeth, R. K., 105
Yamaguchi, S., 27
Yockim, R. S., 106
                                      45

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TECHNICAL REPORT DATA
(Please rcaJ Inumcnom on thi rocru bffort comphtirtfi
1 REPORT NO 2
EPA-905/3-84-005
4 TITLE AND SUBTITLE
Bioaccumulation of Toxic Substances Associated With
Dredging and Dredged Material Disposal
7 AUTHOR(S)
James G. Seel ye and Michael J. Mac
9 PERFORMING ORGANIZATION NAME AND ADDRESS
U.S. Fish and Wildlife Service
Great Lakes Fishery Laboratory
Ann Arbor, Michigan 48105
12. SPONSORING AGENCY NAME AND ADDRESS
U.S. Environmental Protection Agency
Great Lakes National Program Office
536 South Clark Street, Room 958
Chicago, Illinois 60605
3 RECIPIENT'S ACCESSION NO.
6 REPORT DATE
February 1984
6. PERFORMING ORGANIZATION CODE
8. PERFORMING ORGANIZATION REPORT NO.
10. PROGRAM ELEMENT NO.
11. CONTRACT/GRANT NO.
IAG AD-14-F-1 -529-0
13. TYPE OF REPORT AND PERIOD COVERED
Literature Review 1982
14. SPONSORING AGENCY CODE
Great Lakes National Program
Office-U.S. EPA, Region V
15. SUPPLEMENTARY NOTES
Anthony Kizlauskas
Project Officer
6 ABSTRACT

  A literature review of sediment bioassessment was  conducted as  the first step in the
  development of a more standardized and ecologically  sound test  procedure for
  evaluating sediment quality.  Based on the  review, the authors  concluded that
  1 )a standardized laboratory bioassessment  test should consistof  flow-through exposure
  of at least 10 days duration using more than one aquatic  organism including at
  least an infa>unal benthic invertebrate and  a fish  species.   2)  Before adoption of a
  laboratory sediment bioassessment procedure, the laboratory results should be
  evaluated by comparison with field conditions.  3) Most current sediment bioassessment
  regulatory tests measure acute toxicity or  bioaccumulation.  Development of tests to
  evaluate chronic, sublethal effects is needed.
17. KEY WORDS AND DOCUMENT ANALYSIS
t DESCRIPTORS
Bioavai lability of metals
Bioassessment test
Inorganic contaminants
Ecosystem
Aquatic organisms
Toxic Substances
Sediments
nparfn \ pq
15 DISTRIBUTION STATEMENT
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