Ummmm, If the US took over Canada there would be no wild salmon left, only a narrow genepool of cloned hatchery salmon.
.....AND open net fish farms would probably quadruple if the US controlled BC waters. Here in Washington state we have just as many if not more open net pens raising cloned atlantic salmon as does all of BC...BTW, a multi-billion dollar net-pen corporation has recently applied to expand their open net pen operations into the strait of juan de fuca claiming their open net pens will have no impact on the millions of salmon that live, feed, and migrate thru the strait.
The worst part is all the scientists and biologists each have their own answer as to what impacts the mortality of salmon the most. Is it habitat, or is it overfishing, or is it diseases passed from farmed salmon, or maybe lack of herring and other food sources, or perhaps rampant netting by tribes in every river that has salmon, or lack of ocean upwelling that creates nutients for plankton growth, or how bout global warming, maybe it's too many predators, or increased commercial fishing. Way too many choices, but the easiest target is recreational fishers. Yep, stop all recreational salmon fishing and within 10 years every river will be overflowing with salmon. HAHAHA, they already tried that in Washington for more than 10 years and wild stocks of salmon remained endangered and are still endangered inside puget sound....Hatchery fish and farmed fish will soon take over the whole planet, and those tribes that netted the last of the wild salmon will point the finger elsewhere, just as the commercial fisher and the farm salmon corporations......excuses are like a**holes everybodys got one, but some are so full of s**t it comes out both ends.....Kinda like DFO up north and WDFW down here.