Upstream Migration Timing of Columbia Basin Chinook and Sockeye Salmon and Steelhead in 2022
Abstract
Between April 21, and October 13, 2022, 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 1,102 spring Chinook, 530 summer Chinook, 1,472 fall Chinook, 862 steelhead, and 1,354 Sockeye Salmon
Authors
Citation
Fryer, J.K., J. Whiteaker, D. Kelsey, and J. Hess 2025. Upstream migration timing of Columbia Basin Chinook and Sockeye Salmon and steelhead in 2022. Columbia River Inter-Tribal Fish Commission Technical Report 25-02, for U.S. Dept. of Energy Bonneville Power Administration Project 2008-518-00. Portland, OR. 152p.