University of Minnesota
University of Minnesota

Lake Pepin: Buttons, Ecology, and the River

October 21, 2011Joanne RichardsonFull size is 300 × 173 pixels

Attaching fine mesh wire to the cage after the fish were released to protect the juvenile mussels. Note the cage in the background that is already out in the lake ca. 1919

Image courtesy of Minnesota Department of Natural Resources

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