Impacts of turbidity on growth and production of submersed plants Korschgen, C. E. 1990. Feasibility study: Impacts of turbidity on growth and production of submersed plants. Report by the U.S. Fish and Wildlife Service, Northern Prairie Wildlife Research Center, La Crosse, Wisconsin, for the U.S. Fish and Wildlife Service, Environmental Management Technical Center, Onalaska, Wisconsin, November 1990. EMTC 90-07. 11 pp. (NTIS #PB91135475) ABSTRACT In March 1988 the Long Term Resource Monitoring Program requested that scopes of work be developed for three problems: sedimentation, navigation effects, and water level fluctuations. After consultations with two prominent plant ecologists, Dr. John Barko, U.S. Army Corps of Engineers Environmental Laboratory, and Dr. John Titus, Southern University of New York, a scope of work was prepared outlining a study to determine concentrations of suspended solids limiting aquatic plant growth on the Upper Mississippi River. All work tasks were then prioritized by the Long Term Resource Monitoring Program's Problem Solving Work Group. This scope of work was recommended for funding, however, the timeframe for initiation of the study was too short to procure necessary equipment and to properly establish plants. It was therefore decided that a pilot study to determine the appropriate research design would be conducted in FY88 (with minimal funding and the full study conducted in FY89, depending upon recommendations following the pilot study. This report summarizes activities of the pilot study and makes recommendations for a full scale study. KEYWORDS sedimentation, navigation, water levels, pilot study, Mississippi River