Biomark Research Projects

Grant County PUD Survival Studies

Jerry feeds fish Hov at Rock Island Dam
Loading Release at Priest Audrey counting fish

Grant County PUD funded Biomark to conduct Survival studies from 2001 through 2004 for yearling Chinook salmon passage through the hydroelectric facilities of Wanapum and Priest Rapids dams located on the Mid-Columbia River within the state of Washington. Each year, between 95,000 and 120,000 fish were tagged and released. These studies consisted of fish tagging, fish husbandry, release tank loading (with known PIT tag fish), fish releases with helicopters, data analysis and report writing.


Bull Trout Synthesis Report

Bull troutThe United States Fish and Wildlife Service' 2000 Biological Opinion (BiOp) for the operation of the Federal Columbia River Power System (FCRPS) directs the Action Agencies to determine the presence of, and use by, bull trout Salvelinus confluentus in the mainstem Snake River and McNary Reservoir. In response to this, the U.S. Army Corps of Engineers, Walla Walla District, asked a team, consisting of personnel from Biomark and Battelle, to conduct a review of studies done on bull trout use of the lower Snake River and McNary Dam reservoir and associated tributaries.

For this project we conducted interviews with USACOE and other agency personnel who had conducted fish research at the dams and an we also conducted an extensive search of records and reports on the presence of bull trout at the Lower Snake River dams - Ice Harbor, Lower Monumental, Little Goose, and Lower Granite, as well as McNary Dam on the Columbia River. We also conducted an extensive review of reports documenting bull trout studies on locally associated tributaries of the Lower Snake River and McNary Dam Reservoir including the Tucannon, Walla Walla, Touchet, Grande Ronde, Imnaha, Salmon, Umatilla, and Yakima rivers and Asotin Creek.

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