Here is some data associated with ongoing research at the University of Washington

http://www.fish.washington.edu/research/highseas/

Lots of funding goes there for the fisheries program and they work closely with goverment agencies.

Additionally one of the better know researchers and authors associated with salmon/steelhead research Thomas Quinn is a faculty member there.... Lots of reading... lots of good stuff....

In fact it's Quinn's book that changed my mind about harvest of wild salmon, from never harvest to judiciously restrained harvest... Great book...