dave still hasn't explained how these fish our are future !!!
Pretty simple really...they're the only wild salmonid that isn't on the endangered list for pretty much all of the systems in southern BC., including Van Is. (east coast). Until the last decade or two most sporties did not seriously targeted these fish because other species of salmon were prefered.
If some one told had told me that chum will be on the endangered list in the Squamish the last half a decade twenty years ago I would have said they were daft!! Back in the nineties an average day on the fly was 30+ fish. No one would even consider bonking one for food when there appeared to be plenty of springs, coho, (and sockeye for those who wanted to harvest them) which are considered much better table fare. Back then you couldn't keep them even if you wanted to....all sockeye, pinks and chum were to be released but it wasn't because they were in trouble. It was because the others weren't and you could easily get your meat from coho, springs, and steelhead.
Now you're you're lucky to get openings on the Squamish as well as other rivers for chum.....no retension either, and all wild coho and steelhead have needed to be released for more than two decades now, too. No one thought any of these wild salmonid would be in peril since the turn of this century 4 decades ago and look where they are at now. Over harvesting is the major culprit ....purse seining back then was like shooting fish in a barrel. Now add in climate change, lack of food sources like herring (also over harvested as well as destruction of their habitat, disease from aquaculture, changing ocean currents, and the list goes on.
Luckily pinks still come back in large numbers but fishery management could easily mess this fishery up, as well, if they aren't carefull. So as Dave pointed out this species is likely to be our future unless you plan on putting hatcheries on every river would be disasterous in more ways than you could imagine.