Loc: Seattle, Washington USA
My point about the Quinault is that the "wild brood" they use is heavily hatchery influenced...tons of those hatchery fish spawn in the river, artificially increasing that "wild run"...and when the hatchery run tanks, there will be less spawners, and less "wild" fish.
The introgression on the Quinault is among the worst on the west coast.
The Vedder, as of now, is dominated by wild fish, and the hatchery run is fed from that component, rather than the other way around. As long as they keep it that way it won't trash the wild run.
The Wilson, on the other hand, is just like the Quinault...overwhelmingly dominated by spawning hatchery fish.