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Study to Investigate Lifespan of Walleye in Minnesota Lake

Researchers hope to see if walleye are moving into smaller areas of the lake as they seek the optimal water temperature. Researchers hope to see if walleye are moving into smaller areas of the lake as they seek the optimal water temperature. |  Photo: KSTP-TV Photo, file

Created: July 11, 2018 02:42 PM

MINNEAPOLIS (AP) - A new study is using underwater listening devices to find out why more young walleye in a Minnesota lake aren't making it to adulthood.
    
Minnesota Public Radio News reports that acoustic telemetry will be used to track the movements of the juvenile fish in Lake Mille Lacs. The Mille Lacs Band of Ojibwe hopes to test a hypothesis that warming lake temperatures are contributing to the recent walleye population decline.
    
Scientists have placed 61 acoustic receivers in the lake in a grid pattern more than 9,800 feet (3,000 meters) apart. They aim to implant transmitters in about 70 adult walleye this month.
    
Biologist Carl Klimah says researchers will also tag 35 juvenile fish in the fall.
    
Researchers hope to see if walleye are moving into smaller areas of the lake as they seek the optimal water temperature.
    
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Information from: Minnesota Public Radio News, http://www.mprnews.org
 

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