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Post by Nittro on Mar 15, 2016 22:01:37 GMT -5
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Post by skunkedagain on Apr 14, 2016 18:50:24 GMT -5
Then the question posed was whether Lake Ontario faced a similar future? It was answered that in Lake Huron and Lake Michigan the quaggas feeding "drags" the remaining phosphorous downwards which gives growth to different bacteria that then support the food chain. Gobies are also feeding on the bacteria at the bottom and so they make better targets for predators that can go to the bottom such as walleye and lake trout. Stocked Chinook were also hanging close to shore and predators were consuming them before they established. So it's a new set of species going forward.
You will know that the Lake Ontario phosphorous levels are still higher than when Huron collapsed but dropping and have the same invasive species challenge. So keeping a good year class is crucial to keeping the species balanced and hopefully it does not happen.
That's from a very questionable memory of the Port Credit conference. I can post some notes if anyone is interested.
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