Finally, you can't just flood the ocean with smolts. If you don't know what's going on in the ocean, flooding it may only limit food available for wild fish and potentially expand the population of predator fish artifically.
Boy, that sure is a stray from the old "it's the habitat" argument. Might be a good time to admit, we don't REALLY know the answers huh?
Doesn't matter. Unless you can affect the oceans in a meaningful way, you can only control habitat. In any scientific experiment, you control what you can and measure what you can't. The difference is the affect your controls had on the total test environment.
And as for the not knowing the answers, it has been repeated several times. We don't know everything, but we do know that we can make the fastest changes to dams, habitat and harvest. In PS rivers where there are limited dams, and low or zero harvest, that only leaves habitat.
BTW, just out of curiosity, what is your point? I mean, the nets are out of the rivers and we aren't catching wild steelhead in any significant numbers during the height of the run, so what are you after? What are you suggesting auntie? I'm very confused as to why you are arguing that doing habitat protection or restoration is anything but a good thing....