I have thought for a few years it would be a really cool experiment to net a bunch of Salmon out in the Strait of Juan De Fuca, attach small micor radio transmitters to each fish, then release the whole school of fish and track their migratory routes through the sound on their way to their river of origination. This could be accomplished by setting up an array of receiver bouy's at key points throughout the sound.

Imagine owning a PS map that had colored lines which represented the routes that that majority of salmon take to each river system, maybe even by species.

Probably would yield some great information for both Conservationalists and Anglers!