New UW study explains why populations of big Chinook salmon are declining
king5.com/article/tech/science/environment/or...
king5.comPosted Dec 17, 2019, 4:36 PM UTC
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king5.comI’ve also heard that we overly protect seals and sea lions. It’s like putting a legally protected status on deer or pigeons.
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I've fished here for about 20 years or so now and I can definitely agree with this especially in just the last 10 I've noticed a huge decrease in all of our fish. Personally I'd be for opening a hunting season on seal and start regulation Native Americans fishing. There's like 70k seals that consume a shit load of fish and the Natives are allowed to net as many salmon as they want and don't have to repot or really follow any rules that everyone else does.
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We've decreased hatchery production by ~70% over the last 25 years so yeah, much less fish out there as a result.
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OK Boomer
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I'm 32 you dunce.
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This article either fails to mention any detailed numbers to substantiate, or the explanations for declines are still highly speculative.
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TLDR: a rise of resident orcas and their insatiable appetite for large Chinook salmon is the main driver behind the decline of the fish.
How many salmon being eaten does it take to tip the scales enough to starve out local ones? Would a 10% reduction in salmon be enough? I figured the majority of Chinook salmon were not eaten by orcas every year.
You need differential equations to solve this.It's actually the perfect example of what diff eq's are used for and when I was in college we had like 3 questions about populations like this on the final.
And I assume there's way more variable's here than on a undergrad level test. So I doubt anyone can answer this.