1:30 TOWARDS DIAGNOSIS OF STRESSORS FROM BENTHIC MACROINVERTEBRATE ASSESSMENTS.
J. Gerritsen and B.K. Jessup. Tetra Tech, Inc., 10045 Red Run Blvd., Owings Mills, MD 21117

1:45 USING INDICES TO DETECT URBAN IMPACT ON STREAMS: A COMPARISON OF MULTIMETRIC, TOLERANCE-BASED, MULTIVARIATE, AND TRADITIONAL APPROACHES.
M.E. McTammany¹, E.F. Benfield¹, and J.R. Voshell, Jr.². ¹Department of Biology, Virginia Tech, Blacksburg, VA, USA, 24061, ²Department of Entomology, Virginia Tech, Blacksburg, VA, USA, 24061

2:00 DEVELOPMENT OF A MULTIMETRIC INDEX FOR BIOLOGICAL ASSESSMENT OF IDAHO STREAMS USING BENTHIC MACROINVERTEBRATES.
B.K. Jessup¹ and J. Gerritsen². ¹Tetra Tech, Inc., 98 Ferguson Avenue, Burlington, VT 05401, ²Tetra Tech, Inc., 10045 Red Run Blvd., Suite 110, Owings Mills, MD 21117

2:15 ANALYSIS OF LOTIC MACROINVERTEBRATE ASSEMBLAGES IN CALIFORNIA'S CENTRAL VALLEY.
M.B. Griffith¹, P. Husby², R.K. Hall³, P.R. Kaufmann⁴, and B.H. Hill⁵. ¹ORISE, c/o USEPA, NERL, 26 W. Martin Luther King Dr., Cincinnati, OH 45268, ²USEPA, Region 9, 1337 S. 46th St., Richmond, CA 94105, ³USEPA, Region 9, 75 Hawthorne St., San Francisco, CA 94804, ⁴USEPA, NHEERL/WED, 200 SW 35th St., Corvallis, OR 97333, ⁵USEPA, NERL, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

2:30 CAN DIATOMS REFLECT IMPACTS OF URBANIZATION ON STREAMS?.
C. Walker. Environmental Sciences and Resources, Portland State University, Portland, OR 97207, USA

2:45 AN EVALUATION OF DIATOM BIOTIC INTEGRITY METRICS IN KENTUCKY.
Y.K. Wang¹, R.J. Stevenson¹, and L. Metzmeir². ¹Department of Zoology, Michigan State University, East Lansing, MI 48823, ²Kentucky Division of Water, Lexington, KY, USA