Fewer fish, more algae? Researchers look at potential impacts of lack of Great Lakes ice cover

Michigan Tech University biologists have been observing a remote Lake Superior island’s fragile wolf population every winter since 1958, but they had to cut this season’s planned seven-week survey short after just two weeks.
The ski plane they study the wolves from uses the frozen lake as a landing strip because there’s nowhere to touch down on the island. But this weirdly warm winter left the Great Lakes nearly devoid of ice. Now, scientists are scrambling to understand how iceless winters could affect the world’s largest freshwater system.

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