July heat wave leads to significant fish kills in Minnesota
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As temperatures rise, fish susceptible to high temperatures are finding it harder to thrive in lakes, leading to fish deaths across Minnesota.
The Minnesota Department of Natural Resources received reports of 65 fish kills from July 16 to July 20. “Anglers should be aware that fish are stressed due to warm water temperatures and low dissolved oxygen availability,” the agency said Friday.
Northern pike are especially sensitive to temperatures above 84 degrees, “so anything above that for a prolonged period of time and we start to see issues with them getting stressed out and potentially dying if they can’t get to cooler thermal refuges,” Isaiah Tolo, the DNR’s fish health supervisor, told MPR News.
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