Madison researchers work to rid lake of invasive rainbow smelt
MADISON (WKOW) -- If you can't stand the heat, get out of the lake. That's the message Madison researchers are sending to invasive fish in a northern Wisconsin lake.
Rainbow smelt are causing problems in Crystal Lake in Vilas County. They threaten native species, like walleye and perch. Researchers from the University of Wisconsin-Madison plan to raise the temperature of the 83-acre lake about 6 degrees by stirring up the water, so the warm water on top mixes with the cooler water below.
The scientists hope the warmer water will either kill the smelt, or make it hard for them to reproduce. UW-Madison researcher Steve Carpenter says the higher temperature shouldn't affect walleye and perch.
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