both...they both are not native and another fishery exists without both of their existences. the amount of browns and bows i see people catching in the area, the fishery will survive without the salmons.
Dunno if the steelhead would be so prominent though if the salmon are no longer running the rivers en masse? anyone care to comment on that?
Regardless I can honestly say we are approaching a day and age where the resources that were once so ridiculously abused are finally beginning to turn the corner after years of wreckless fishing and pillaging,
Populations of native fish are on the increase for the most part and the tight restrictions on catch and keep is whats creating the turn around. keep the regs tight, the pollution down and the poachers and commercial fishers away and things will fix themselves.
And please dont misinterpret my comment as anti fishing propaganda, please go experience the fishery, it just might not be for a non native species. Catch a lot, keep the odd one, but most importantly enjoy and practice good conservation on the fishery.