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Upstream Migration Timing of Columbia Basin Chinook and Sockeye Salmon and Steelhead in 2021

Jun 21, 2024


Between April 20, and October 12, 2021, Chinook (Oncorhynchus tshawytscha) and Sockeye (Oncorhynchus nerka) salmon as well as steelhead (Oncorhynchus mykiss) were sampled at the Bonneville Dam Adult Fish Facility (AFF). Fish were measured for fork length, scales were collected for analysis of age, tissue samples collected for genetic analysis, and the fish were tagged with Passive Integrated Transponder (PIT) tags. These fish were tracked upstream as they passed through sites with PIT tag antennas, including fish ladders at dams, juvenile bypasses, hatcheries, and weirs, as well as in-stream antennas. Total numbers of fish tracked upstream were 1,273 spring Chinook, 999 summer Chinook, 1,205 fall Chinook, 640 steelhead, and 1,400 Sockeye Salmon.



Fryer, J.K., J. Whiteaker, D. Kelsey, and J. Hess 2024. Upstream migration timing of Columbia Basin Chinook and Sockeye Salmon and steelhead in 2021. Columbia River Inter-Tribal Fish Commission Technical Report 24-03, for U.S. Dept. of Energy Bonneville Power Administration Project 2008-518-00. Portland, OR. 152p.



Report No.


Media Type

CRITFC Technical Report