Northwest Fisheries Science Center

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Document Type: Contract Report
Center: NWFSC
Document ID: 9321
Title: Monitoring the migrations of wild Snake River spring/summer Chinook salmon juveniles: fish collection and tagging, 2016
Author/Editor: Jesse J. Lamb, Benjamin P. Sandford, Gordon A. Axel, Matthew G. Nesbit, Beth L. Sanderson
Publication Year: 2017
Publisher: National Marine Fisheries Service
Contracting Agency: Bonneville Power Administration. Portland, Oregon
Contract Number: 46273-REL-62
Project Number: 1991-028-00
Abstract:

During late summer 2016, we collected and tagged fish as part of a multiyear research project to monitor the migration behavior and survival of wild juvenile spring/summer Chinook salmon in the Snake River Basin.  For each study year, we collect wild Chinook parr in natal tributaries, implant them with passive integrated transponder (PIT) tags, and release them near their respective collection sites. 

In this report, we present data on fish collection and tagging efforts during July and August 2016.  Detection data will be collected from these tagged fish as they begin moving downstream during fall and winter 2016-2017 and commence migration during spring 2017.  These data and the respective analyses will be presented in the 2017 Survival and Timing report.  

From July to August 2016, we PIT-tagged and released 15,063 wild Chinook salmon parr from 16 Idaho streams or sample reaches.  Overall observed mortality from collection, handling, tagging was 1.4% after a 24-h holding period. 

 

Files:
Theme: Recovery and rebuilding of marine and coastal species
Foci: Characterize the population biology of species, and develop and improve methods for predicting the status of populations.
Characterize the population biology of species, and develop and improve methods for predicting the status of populations.