How will you calculate "adult fish produced per hatchery"? Include BC and AK?. Use adult equivalents as many of the hatchery fish are purposefully harvested as juveniles.

The first Cowlitz mitigation agreement required a certain return at least to the river, if not the hatchery. WDF just harvested them in the ocean and then told TCL that they were not meeting agreements.

All about natural selection? Coho and Chinook produce (naturally) lots of jacks which do successfully spawn. They aren't the largest, by far. Chinook, chum, and steelhead all have multiple year classes (3 or more). You want to ignore the younger fish ('cause they are smaller)? Not saying that the current spawning guidelines are perfect, but it works better than "just spawn the big ones".