FNP -
In the late 1970s the state tried to prevent the tribes from selling steelhead in this state because it was against state law which prohibited the sell of steelhead. Washington lost that case in Federal court which said in effect that prohibiting the sell of steelhead was in effect prohibiting the tribe from fishing for steelhead. Somehow I don't think the court would rule any different today.

What the heck is "maximal sustainable abundance" and how would you achieve that?

Tight lines
Curt