Canada is basically ignoring the problem, whereas Washington state really grabbed it by the horns. They passed legislation to pull the industry out of the ocean to stop Atlantic salmon farming and, most importantly, to stop the spread of this piscine orthoreovirus, a blood virus that causes Chinook red blood cells to rupture en masse.
Also, Washington state, of course, is removing dams. They have a huge commitment to wild salmon. They've proven this on many fronts. Canada has no will behind their wild salmon, and now we are seeing these enormous crashes.