Quantification of Libby Reservoir Levels Needed to Maintain or Enhance Reservoir Fisheries, 1983-1987 Methods and Data Summary.

• Main Author: Chisholm, Ian
• Language: unknown
• Published: 2008
• Subjects: 13 HYDRO ENERGY; 54 ENVIRONMENTAL SCIENCES; HYDROELECTRIC POWER PLANTS; ENVIRONMENTAL IMPACTS; WATER TABLES; SEASONAL VARIATIONS; CANADA; COLUMBIA RIVER BASIN; COMPILED DATA; DAMS; FISHERIES; FLOOD CONTROL; HYDROELECTRIC POWER; INTERNATIONAL AGREEMENTS; NAVIGATION; NORTHWEST TERRITORIES; OXYGEN; PH VALUE; PROGRESS REPORT; SALMON; TEMPERATURE EFFECTS; TROUT; USA; WATER RESERVOIRS; WILD ANIMALS; AGREEMENTS; ANADROMOUS FISHES; ANIMALS; AQUATIC ORGANISMS; CONTROL; DATA; DOCUMENT TYPES; ELECTRIC POWER; ELEMENTS; ENERGY SOURCES; FISHES; INFORMATION; NONMETALS; NORTH AMERICA; NUMERICAL DATA; POWER; POWER PLANTS; RENEWABLE ENERGY SOURCES; SURFACE WATERS; VARIATIONS; VERTEBRATES; Northwest Territories; Canada
• Online Access: http://www.osti.gov/servlets/purl/7202851; https://www.osti.gov/biblio/7202851; https://doi.org/10.2172/7202851

Libby Reservoir was created under an International Columbia River Treaty between the United States and Canada for cooperative water development of the Columbia River Basin. The authorized purpose of the dam is to provide power, flood control, and navigation and other benefits. Research began in May 1983 to determine how operations of Libby dam impact the reservoir fishery and to suggest ways to lessen these impacts. This study is unique in that it was designed to accomplish its goal through detailed information gathering on every trophic level in the reservoir system and integration of this information into a quantitative computer model. The specific study objectives are to: quantify available reservoir habitat, determine abundance, growth and distribution of fish within the reservoir and potential recruitment of salmonids from Libby Reservoir tributaries within the United States, determine abundance and availability of food organisms for fish in the reservoir, quantify fish use of available food items, develop relationships between reservoir drawdown and reservoir habitat for fish and fish food organisms, and estimate impacts of reservoir operation on the reservoir fishery. 115 refs., 22 figs., 51 tabs.