Low oxygen kills fish in Minn. river

By on March 22, 2012

Thousands of fish in the Pelican River in northern Minnesota are dead, likely a result of low oxygen levels, according to a report from the Duluth News Tribune.

Species affected by the fish kill include black crappie, northern pike and yellow perch. The low oxygen is a result of normal winter conditions like ice cover exacerbated by low autumn water levels brought on by drought, according to the Department of Natural Resources. The die-off began when the river was still ice-covered, but now that the river is open the DNR expects oxygen levels to rise and the fish population to eventually recover.

Read more at the Duluth News Tribune.

About Jeff Gillies

Jeff Brooks-Gillies has written about science, energy and the environment for going on 10 years. He's a native Michigander who, after a stint in Colorado, lives in Indianapolis with his wife and two kids.

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