Gary Chittim at King 5 had this report:

Tribal Biologist Justin Paul said a program that uses radio transmitters is designed to help slow down the number of salmon dying. The salmon in question were captured at a dam near Buckley then trucked around the dam and released upriver.

Paul said a number of factors could cause the deaths, including predators like otters and bears, injuries suffered during capture or the stress of being loaded into tanks and trucked around the dam.