Good way to approach this cowlitz....

Based on the studies I have read ,just as hatchery fish survive poorly in the wild , wild steelhead survive poorly in the hatchery setting.

The hatchery process weeds out genes that are adapted to life in the wild by thoes fish not surviving, all of the wild survival traits are breed out of the hatchery stock and the problem gets worse with each generation in the hatchery until there are none of thoes traits left and we are left with a hatchery fish that is maladapted to life in the wild. this is all based on studies done on the kalama and Deschutes rivers if you'd like me to post the actual studies I will..
tight lines
Rob