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Effects Of A Shad Fishery On Passage Of Adult Chinook Salmon Through The Oregon-Shore Fishway Ladder At The Dalles Dam - 1996 Item Info

Title:
Effects Of A Shad Fishery On Passage Of Adult Chinook Salmon Through The Oregon-Shore Fishway Ladder At The Dalles Dam - 1996
Report Type:
Technical Report
Date:
1999
Authors:
Peery, C.A.; Bjornn, T.C.; Tolotti, K.R.; Stuehrenberg, L.C.
Affiliations:
Idaho Cooperative Fish and Wildlife Research Unit; National Marine Fisheries Service, National Oceanic and Atmospheric Administration
Report Number:
99-4
Publisher:
University of Idaho
Funder:
U.S. Army Corps of Engineers, Portland District; Bonneville Power Administration
Abstract:
A fishery for American shad Alosa sapidissima at the exit of the Oregon-shore ladder at The Dalles Dam in the spring of 1996 had the potential to disrupt passage of adult Chinook salmon Oncorhynchus tshawytscha through the ladder. We evaluated the effects of the shad fishery on passage by monitoring Chinook salmon with radio transmitters as they passed through the Oregon-shore fishway. Passage times for 54 radio-tagged Chinook salmon that exited the ladder during the period the shad fishery occurred were compared to passage times for 62 radio-tagged Chinook salmon that passed the dam prior to the shad fishery. We found no differences in median times for Chinook salmon to pass through and exit the ladder before and during the shad fishery using this simple comparison.
Species:
American shad, Alosa sapidissima Chinook salmon, Oncorhynchus tshawytscha
Location:
Columbia River; The Dalles Dam
Subjects:
salmonids clupeids Federal Columbia River Power System FCPRS radiotelemetry migration passage behavior fishways fisheries effects
Source:
University of Idaho, Fish Ecology Research Lab
Original Filename:
1999-04-John-Day-Shad-effects-on-chinook-psssage-1996.pdf
Format:
application/pdf

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Preferred Citation:
"Effects Of A Shad Fishery On Passage Of Adult Chinook Salmon Through The Oregon-Shore Fishway Ladder At The Dalles Dam - 1996", Adult Salmon and Steelhead Migration Studies: 1996-2014, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/ferl/items/ferl-tr-99-4.html
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