Cold water causes fish to surface on Lake Michigan

A fisherman on Lake Michigan. (Photo by Tim Boyle/Getty Images)

Combined ShapeCaption
A fisherman on Lake Michigan. (Photo by Tim Boyle/Getty Images)

Fisherman are noticing hundreds of yellow perch on the surface along the shoreline of Lake Michigan.

The Illinois Department of Natural Resources believes that the cause is upwelling, a rare condition in which cold water rises from the deep, pushing up the fish, according to WGNTV.

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The fish can then become a feast for seagulls and ducks.

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