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Behavior and survival of adult steelhead incidentally caught in a tangle net test fishery using radio telemetry Item Info

Title:
Behavior and survival of adult steelhead incidentally caught in a tangle net test fishery using radio telemetry
Report Type:
Technical Report
Date:
2004
Authors:
Griffith, D.; Peery, C.A.; Ashbrook, C.E.; Dixon, J. F.; Yi, K. W.
Affiliations:
Idaho Cooperative Fish and Wildlife Research Unit
Report Number:
2004-9
Publisher:
University of Idaho
Abstract:
We conducted an evaluation of the impact on non-target adult steelhead caught in a commercial Chinook salmon tangle net test fisheryon the Columbia River downstream from Bonneville Dam during spring 2003 using radio telemetry. In contrast to capture rates from the previous year, relatively few steelhead were collected during the 2003 study period. From a total of 15 fishing trips made between 20February and 19March 2003, consisting of 5-7 sets each, only 13 steelhead were collected and outfitted with radio transmitters. Another thirteen fish were tagged in the adult fish facility at Bonneville Dam and released downstream from the dam as a control group. All fish in the study were released at Butler’s Eddy rKm 225.5, approximately 9 Km downstream of Bonneville dam (rKm 235.1). Of the 13 tangle net-caught fish, 76.9% passed Bonneville Dam versus 100% of the control group and 69.2% of the tangle net-caught fish escaped to tributaries compared to 76.9% of the control group. Adult steelhead caught in the fishery had longer passage times to reach and pass Bonneville Dam than fish in the control group. The majority of the fish that successfully passed Bonneville Dam eventually escaped to Hood River as their spawning tributary, one fish was recaptured at Lower Granite Dam (rKm 694.6) on the Snake River and another ascended several lower Columbia tributaries and was last recorded in the Cowlitz River.
Species:
Chinook salmon, Oncorhynchus tshawytscha
Location:
Lower Granite Dam
Source:
University of Idaho, Fish Ecology Research Lab
Original Filename:
Tanglenet Steelhead (UI 6Oct03).pdf
Format:
application/pdf

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Source
Preferred Citation:
"Behavior and survival of adult steelhead incidentally caught in a tangle net test fishery using radio telemetry", Adult Salmon and Steelhead Migration Studies: 1996-2014, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/ferl/items/ferl-tr-2004-9_draft.html
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