Table 3.

Migration rates of PIT-tagged Chinook salmon were similar among years for the two reaches summarised. Migration rates decreased in the reach between McNary and Priest Rapids dams.

Release year Reach n Med (d) km/d
2003 Bonneville dam-to-McNary dam 329 5.82 40.1
2004 Bonneville dam-to-McNary dam 22 5.25 42.5
2003 McNary dam-to-Priest Rapids dam 403 5.75 27.4
2004 McNary dam-to-Priest Rapids dam 21 4.76 33