3:15 INVERTEBRATE PRODUCTION AND TROPHIC DYNAMICS ON THE SNAG HABITAT OF A SUBTROPICAL COASTAL PLAIN RIVER.
A.C. Benke. Aquatic Biology Program, Box 870206, University of Alabama, Tuscaloosa, AL 35487

3:30 AQUATIC INVERTEBRATE TROPHIC STRUCTURE AND PRODUCTION IN A TALLGRASS PRAIRIE HEADWATER STREAM.
D.M. Stagliano and M.R. Whiles. Department of Entomology, Kansas State University, Manhattan, KS 66506-4004

3:45 CRAYFISH BIOMASS, GROWTH, AND PRODUCTION IN A TALLGRASS PRAIRIE STREAM.
M. Evans-White, W.K. Dodds, and J. Garvey. Department of Biology, Kansas State University, Manhattan, KS 66506

4:00 INFLUENCES OF ORGANIC MATTER COMPOSITION IN SEDIMENTS ON LARVAL GROWTH OF THE MIDGE CHIRONOMUS RIPARIUS.
J. Vos¹, P. Van Den Brink², J. Postma³, F. Van Den Ende¹, and W. Admiraal¹. ¹Department of Aquatic Ecology and Ecotoxicology, University of Amsterdam, Amsterdam, Netherlands, ²Department of Water and the Environment, Alterra Research Institute, Wageningen, Netherlands, ³AquaSense Consultants, Amsterdam, Netherlands

4:15 THE YIN AND YANG OF NUTRIENT LOADING: RELATIVE IMPORTANCE OF FOOD VERSUS HABITAT LIMITATION OF MACROBENTHOS IN MESOHALINE REGIONS OF CHESAPEAKE BAY.
S.C. Blumenshine¹ and W.M. Kemp². ¹Department of Biological Sciences, Arkansas State University, State University, AR 72467, ²Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD 21613

4:30 LIFE HISTORY AND PRODUCTION OF STONEFLIES IN STAKE CLOUGH, AN ACID STREAM IN THE PEAK DISTRICT, ENGLAND.
D.J. Giberson¹, J. Pretty², and M.K. Dobson². ¹Department of Biology, University of Prince Edward Island, Charlottetown, PEI C1A 4P3, ²Dept. of Envir. and Geographical Sci., Manchester Metropolitan University, Chester St., Manchester, UK M1 5GD

4:45 THE USE OF BENTHIC MACROINVERTEBRATES BY RAINBOW TROUT (ONCORHYNCHUS MYKISS) IN LAKE OGALLALA, NEBRASKA.
T.J. Pearson and E.J. Peters. University of Nebraska, Lincoln School of Natural Resources Sciences, Lincoln, NE, 68503

5:00 RESPONSE OF BENTHIVOROUS LAKE TROUT (SALVELINUS NAMAYCUSH) TO FERTILIZATION IN AN OLIGOTROPHIC ARCTIC LAKE.
P.W. Lienesch¹, M.E. McDonald², A.E. Hershey¹, and N.B. Bettez³. ¹Department of Biology, University of North Carolina-Greensboro, Greensboro, NC 27402, ²Environmental Monitoring and Assessment Program, U. S. Environmental Protection Agency, Research Triangle Park, NC 27711, ³The Ecosystem Center, Marine Biological Laboratory, Woods Hole, MA 12543