ST. PAUL, Minn. - Biologists with the Minnesota Department of Natural Resources (DNR) practiced a different form of catch-and-release Wednesday, turning loose a wide variety of fish into the Mississippi, Minnesota and St. Croix rivers in an attempt to track their behavior.
Those fish were implanted with transmitters that will let researchers track their movements and gather baseline information needed to assess the effectiveness of barriers to stop invasive Asian carp, particularly as it relates to fish movement through the lock at the Ford Dam.
In addition to the common carp, fisheries biologists implanted paddlefish, lake sturgeon, shovelnose sturgeon, smallmouth buffalo, freshwater drum, white bass and flathead catfish to learn more about these species at several locations on the three large metro rivers.
Funding for the Lock and Dam 1 portion of the study came from constitutionally dedicated sales tax money, as recommended by the Lessard-Sams Outdoor Heritage Council.
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