Starfish, there is a bunch of interesting information (probably not sufficient "data" though) about these URB populations. In a different post, I mentioned the fact that there are a tremendous number of unmarked hatchery fish that are returning to the reach that are credited to natural production that probably is not occurring. This would lead to an overestimate of the productivity of this spawning aggregate, which would in turn bring into question whether or not the current harvest regime is appropriate or not. To complicate the matter, there are plans for significant increases in hatchery programs for URB's. That in itself may not be a problem, however, in my opinion, the managers' harvest plans to deal with these additional hatchery fish are a major concern. In a nutshell, their plans are to increase the harvest rate on all URB's based on increases in the composite run size (natural + hatchery runs). These harvest rates could easily get to the 70% rate based on projections of increased run sizes from planned hatchery programs, not any increase in natural productivity. Anybody got any data that shows any local natural Chinook populations capable of being able to sustain 70% harvest rates? Anybody have any experience with what happens to natural populations when their harvest rates are based on aggregate natural and hatchery populations? I do. I bet Sg does, too.

You need any more listed populations to worry about Sg?