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quagga mussels

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Lake Superior is cold, deep and clear. But it’s no longer the clearest of the Great Lakes.

Lakes Michigan and Huron have gotten clearer, bumping Lake Superior to number three.

Scientists have been able to figure how much clearer by using satellite imagery.

lakescientist.com

LANSING, Mich. (AP) - Michigan officials say after years of planning, they're ready to put in place a strategy for controlling the spread of invasive species in the state's waterways.

The plan is described in the annual "State of the Great Lakes" report released Thursday by the Department of Environmental Quality.

Aquatic invaders such as quagga mussels cost the region hundreds of millions of dollars a year.

The newly developed strategy focuses on early detection of new invaders and a rapid response to rein them in.