Upstream Migration Timing of Columbia Basin Chinook and Sockeye Salmon and Steelhead in 2016
Between April 15 and October 14, 2016, we sampled Sockeye (Oncorhynchus nerka) and Chinook (Oncorhynchus tshawytscha) salmon as well as steelhead (Oncorhynchus mykiss) 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, weirs, as well as in-stream antennas. Total numbers of fish tracked upstream were 1,255 spring Chinook, 876 summer Chinook, 1,265 fall Chinook, 1,610 steelhead, and 1,653 Sockeye Salmon.
Fryer, J.K., J. Whiteaker, and D. Kelsey. 2018. Upstream migration timing of Columbia Basin Chinook and Sockeye Salmon and steelhead in 2016. Columbia River Inter-Tribal Fish Commission Technical Report 18-03 for U.S. Dept. of Energy Bonneville Power Administration Project 2008-518-00. 114p.