Upstream Migration Timing of Columbia Basin Chinook, Sockeye Salmon and Steelhead in 2009
In 2009 we sampled sockeye and Chinook salmon as well as steelhead at the Bonneville Dam Adult Fish Facility. Fish were measured for length and scales collected for later analysis for age and the fish were tagged with Passive Integrated Transponder (PIT). 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. Approximately one third of the steelhead and Chinook were tagged with a 20mm PIT tag (model TX1420SST), the remainder, as well as all sockeye, were tagged with a standard 12.5 mm tag (model TX1411SST). Total numbers of fish tracked upstream were 925 spring Chinook, 907 summer Chinook, and 1109 fall Chinook salmon, 2474 steelhead, and 807 sockeye salmon.
Fryer, J.K., J. Mainord, J. Whiteaker, and D. Kelsey. 2011. Upstream Migration Timing of Columbia Basin Chinook, Sockeye Salmon and Steelhead in 2009. Columbia River Inter-Tribal Fish Commission Technical Report #11-10, Portland, Oregon.
Oct 7th, 2011
CRITFC Technical Report