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Fish stocks decline in Lake Superior due to warming according to study

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DULUTH/SUPERIOR - Lake Superior has lost about 20-percent of its most abundant large fish over the last 30 years, as the average water temperature has warmed by two-and-a-half percent.

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Scientists at UW-Madison say the siscowet lake trout love colder temperatures, and their numbers have dwindled while other fish like walleye and Chinook salmon thrive in the warmer water.

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