ASSESSING RIVER IMPACT IN AN INTACT PRIORITY WATERSHED DESIGNATED FOR RESTORATION.
T.V. Ash, D.L. Feldman, and J.L. Farris. Ecotoxicology Research Facility, Arkansas State University, State University, Arkansas,USA 72467

EVALUATING THE BENTHIC COMMUNITY AT HAZARDOUS WASTE SITES: A MULTIPLE LINE OF EVIDENCE APPROACH.
K.M. Cerreto and C.A. Menzie. Menzie-Cura & Associates, Inc., One Courthouse Lane, Suite 2, Chelmsford, MA 01824

ARSENIC AND MERCURY CONCENTRATIONS IN MAJOR LANDSCAPE COMPONENTS OF AN INTENSIVELY CULTIVATED WATERSHED.
C.M. Cooper. United States Department of Agriculture-Agricultural Research Service, National Sedimentation Laboratory, PO Box 1157,Oxford, MS 38655

EFFECTS OF SUBSTRATA CONTAINING ACID MINE DRAINAGE PRECIPITATE ON MACROINVERTEBRATE AND PERIPHYTON COMMUNITIES.
D.M. DeNicola and M.G. Stapleton. Departments of Biology and Environmental Geosciences, Slippery Rock University, Slippery Rock, PA 16057

EVALUATION OF THE ROLE OF GROUNDWATER-SURFACE WATER INTERACTIONS IN THE TOXICITY OF CONTAMINATED SEDIMENTS.
M.S. Greenberg and G.A. Burton, Jr.. Department of Biological Sciences, Wright State University, Dayton, OH 45435-0001

DEVELOPMENT AND VALIDATION OF PROCEDURES FOR MONITORING ENDOCRINE AND REPRODUCTIVE FUNCTION IN FRESHWATER MUSSELS.
T.S. Gross^1,2, C.M. Wieser¹, N.J. Kernaghan², and D.S. Ruessler¹. ¹USGS-BRD-Florida Caribbean Science Center, Gainesville, FL, ²College of Veterinary Medicine, Department of Physiological Sciences, University of Florida, Gainesville, FL

HIGH TOLERANCE OF ALDERFLY (SIALIS SP.) LARVAE TO ACIDITY AND HEAVY METALS.
K. Johnson, J.L. Last, and G. Herrick. Department of Biology, Ohio University, Athens, Ohio 45701

AN EVALUATION OF THE POTENTIAL EFFECTS OF PAPERMILL EFFLUENTS ON FRESHWATER MUSSELS IN RICE CREEK, FLORIDA.
N.J. Kernaghan², D.S. Ruessler¹, S.E. Holm³, and T.S. Gross^1,2. ¹USGS/BRD/Florida Caribbean Science Center, Gainesville, FL, ²College of Veterinary Medicine, Dept. of Physiological Sciences, University of Florida, Gainesville, FL, ³Georgia Pacific Corp., Atlanta, GA

EFFECTS OF ROTENONE ON AQUATIC INVERTEBRATE COMMUNITIES IN PRAIRIE WETLANDS.
C.L. Melaas¹, K.D. Zimmer¹, M.G. Butler¹, and M.A. Hanson². ¹Department of Zoology, North Dakota State University, Fargo, ND 58105, ²Wetland Wildlife and Populations Research Group, Minnesota Department of Natural Resources, Bemidji, MN 56601

AN ASSESSMENT OF POTENTIAL CONTAMINANT EFFECTS ON FRESHWATER MUSSELS IN THE SOUTH FLORIDA ECOSYSTEM.
D.S. Ruessler¹, N.J. Kernaghan², C.M. Wieser¹, J.J. Wiebe², and T.S. Gross^1,2. ¹USGS-BRD-Florida Caribbean Science Center, Gainesville, FL, ²College of Veterinary Medicine, Department of Physiological Sciences, Univeristy of Florida, Gainesville, FL.

EFFECTS OF ACID MINE DRAINAGE ON PREDATOR AVOIDANCE BEHAVIORS OF STREAM MINNOWS.
S. Seiler and A. Turner. Department of Biology, Clarion University, Clarion, PA 16214

AN ASSESSMENT OF POTENTIAL CONTAMINANT EFFECTS ON THE FLORIDA APPLE SNAIL IN CENTRAL FLORIDA WETLANDS.
R.S. Sternberg¹, P. Darby⁴, D.S. Ruessler², C.M. Wieser², and T.S. Gross^2,3. ¹Institute of food and agricultural Sciences, Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, ²USGS-BRD-Florida Caribbean Science Center, Gainesville, FL, ³College of Veterinary Medicine, Department of Physiological Sciences, University of Florida, Gainesville, FL, ⁴Department of Biology, University of West Florida, Pensacola, FL

EFFECTS OF ACID MINE DRAINAGE DERIVED FLOC ON NET METHYL-MERCURY PRODUCTION FROM CLEAR LAKE SEDIMENTS.
B.J. Swisher^1,2, S.C. McHatton¹, D.C. Nelson³, and T.H. Suchanek¹. ¹Department of Fish, Wildlife, and Conservation Biology, University of California at Davis, Davis, CA 95616, ²U. C. Davis Clear Lake Environmental Research Center, 200 Park St., Lakeport, CA 95453, ³Section of Microbiology, Division of Biological Sciences, University of California at Davis, Davis, CA 95616