There is a collaborative project involving NOAA, USFWS, USFS, WDFW, Skokomish Tribe, Port Gamble Tribe, Point No Point Treaty Council, Hood Canal Salmon Enhancement Group and Long Live the Kings. The principle investigator is Dr. Barry Berejikian from NOAA. Intervention with artificial production in multiple streams and allowing multiple other streams to serve as controls. The Long Live the Kings (LLTK) website has a pretty good description of the project, but probably heavy on the LLTK importance. It's been going on since 2007, so there must be a progress report or two around. If you're interested, I'd contact Barry and see what he has. He's a sharp fellow.