3:15 EVALUATION OF A RAPID BIOASSESSMENT PROTOCOL FOR ASSESSING BIOMASS AND COURSE COMMUNITY COMPOSITION OF STREAM PERIPHYTON ACROSS PHOSPHORUS GRADIENTS.
S.T. Rier and R.J. Stevenson. Department of Zoology, Michigan State University, East Lansing, MI, 48824, USA

3:30 THE EFFECTS OF NATURAL VARIABILITY ON THE USE OF MACROINVERTEBRATES AS BIOINDICATORS OF DISTURBANCE IN INTERMONTANE POTHOLE WETLANDS IN NORTHWEST MONTANA.
V.E. Ludden and F.R. Hauer. Flathead Lake Biological Station, The University of Montana, Polson, Montana USA 59860-9659

3:45 RAPID BIOASSESSMENT OF NON-WADEABLE RIVERS: BENTHIC OR DRIFTED ALGAE?.
Y. Pan¹, R.J. Stevenson², P.R. Kaufmann³, A.T. Herlihy³, and R. Hughes⁴. ¹Environmental Sciences and Resources, Portland State University, Portland, OR. 97207, USA, ²Department of Zoology, Michigan State University, East Lansing, MI. 48824, USA, ³Department of Fisheries and Wildlife, Oregon State University, c/o US Environmental Protection Agency, Corvallis, OR 97333, USA, ⁴Dynamac International Corp., Corvallis, OR 97333, USA

4:00 FIXED-COUNT AND PROPORTIONAL BENTHIC INVERTEBRATE SUBSAMPLING METHODS: A COMPARISON OF EFFICACY AND COST.
T.F. Cuffney¹, S.R. Moulton², J.L. Carter³, and T.M. Short³. ¹USGS, 3916 Sunset Ridge Road, Raleigh, NC 27607, ²USGS, National Water Quality Laboratory, Denver Federal Center, Lakewood, CO 80225, ³USGS, 345 Middlefield Road, Meno Park, CA 94025

4:15 DOES GENUS-LEVEL IDENTIFICATION OF CHIRONOMIDAE MAKE A DIFFERENCE IN STATISTICAL MODELS?.
D.A. Wymer and S.B. Cook. Department of Biology, Tennessee Technological University, Cookeville, Tennessee 38505

4:30 EFFECTS OF FIELD SAMPLING METHOD AND SUBSAMPLING ON PERFORMANCE OF RIVPACS-TYPE MODELS.
J.D. Ostermiller and C.P. Hawkins. Department of Fisheries and Wildlife, Utah State University, Logan. UT 84322-5210

4:45 EVALUATION OF CITIZEN BIOMONITORING IN VIRGINIA.
S.R. Engel and J.R. Voshell, Jr.. Department of Entomology, Virginia Tech, Blacksburg, VA 24061

5:00 DEVELOPMENT OF A PUBLICLY ACCESSIBLE DATABASE FOR SEARCHING AND CHOOSING BIOLOGICAL METHODS FOR WATER QUALITY MONITORING.
J.M. Diamond¹ and M. Miller². ¹Tetra Tech, Inc., 10045 Red Run Blvd., Owings Mills, MD 21117, ²Wisconsin DNR, 101 S. Webster St., Madison, WI 53707