The Pacific Salmon Treaty was based on some form of "sharing" in that because you take X, we take Y. I have been out of it for a while but suspect that the most recent iteration gave AK X and Canada Y. Canada is, if I read things correctly, more interested in their sockeye and steelhead harvests with these being primarily net which are still ongoing.

Since the target of the saved fish was WA stocks primarily I would suspect Canada would us which Canadian stocks we plan to not catch.