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Water Temperatures In Adult Fishways At Mainstem Dams On The Snake And Columbia Rivers: Phase 2 — Biological Effects Item Info

Title:
Water Temperatures In Adult Fishways At Mainstem Dams On The Snake And Columbia Rivers: Phase 2 — Biological Effects
Report Type:
Technical Report
Date:
2006
Authors:
Caudill, C.C.; Clabough, T.S.; Naughton, G.P.; Peery,C.A.; Burke, B.J.
Affiliations:
Fish and Wildlife Sciences, University of Idaho; National Marine Fisheries Service, National Oceanic and Atmospheric Administration
Report Number:
2006-3
Publisher:
University of Idaho
Funder:
U.S. Army Corps of Engineers, Walla Walla District
Abstract:
Impoundments on the Columbia, Snake and Clearwater rivers have strong effects on the environment encountered by adult salmonids as they migrate upstream. Reservoirs influence seasonal temperature regimes and spatial heterogeneity in temperature, key factors affecting salmonid behavior. We hypothesized that temperature gradients in fish ladders caused by thermal layering in reservoirs and dam forebays represent potential thermal barriers impeding passage of adult salmonids. As a preliminary step in quantifying the biological effects of ladder temperature gradients on adult salmonids, we examined associations between fish passage behaviors and the difference between fish ladder exit and transition pool temperatures (ΔT) at the time of the first detection of fish at the base of fishways. Study sites included McNary Dam and the four lower Snake River dams and this report includes data collected from 2000 to 2003.
Species:
Steelhead, Oncorhynchus mykiss Chinook salmon, Oncorhynchus tshawytscha
Location:
Bonneville Dam; Columbia River; Snake River; Lower Granite Dam; The Dalles Dam; John Day Dam; McNary Dam; Ice Harbor Dam; Lower Monumental Dam; Little Goose Dam
Subjects:
salmonids Federal Columbia River Power System FCPRS radiotelemetry migration bioenergetics stream temperature passage behavior transition pools
Source:
University of Idaho, Fish Ecology Research Lab
Original Filename:
2006-03-Biological-effects-of-water-temperatures-in-mainstem-dam-fishways-2000-2003.pdf
Format:
application/pdf

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Preferred Citation:
"Water Temperatures In Adult Fishways At Mainstem Dams On The Snake And Columbia Rivers: Phase 2 — Biological Effects", Adult Salmon and Steelhead Migration Studies: 1996-2014, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/ferl/items/ferl-tr-2006-3.html
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