many other cases state hatchery supplementation works fine. see the great lakes, or South America. naturally reproducing populations of pacific salmon, from hatchery supplemental plants.
Those examples are emphatically NOT supplementation programs.
They were introduction programs where a totally non-native population was introduced where none had been there to occupy the unutilized niche that allowed them to take hold in the first place.
The paper is VERY narrow in focus.
We're talking about currently existing, albeit depressed, wild populations. Hatchery supplementation has failed to grow those natural populations.
10 years ago, most folks were still blindly clinging to the "no brainer" belief that dumping more fish into those depressed systems could only help. J F C... how could it not?
Well now we have a definitive retrospective evaluation... an outcomes-based assessment of our investment in blind faith. And it ain't lookin' pretty.
In another 10 years we'll all look back and say, well hell that was a no brainer... who in their right mind could have ever thought that would work.
_________________________
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