Invasive Fish Found In River

Invasive Fish Found In River Click to Enlarge Photo: MN DNR

(KNSI) - The Department of Natural Resources says an invasive fish has been found in a river that separates Minnesota and Wisconsin.

The invasive silver carp was caught by a commercial fisher near Prescott, Wisconsin, during routine spring netting in the St. Croix River. Two other fish were caught near the same location in 2017.

The most recently captured silver carp was a 26 1/4-inch male weighing seven pounds.

The DNR continues to be concerned about the potential impact of invasive carp in the St. Croix River and other Minnesota waters, but cautions that an individual adult fish captured doesn't indicate a reproductive or established population of invasive carp in the St. Croix.

Invasive carp progressed upstream since escaping into the Lower Mississippi River in the 1970s.

These large fish compete with native species and pose a threat to rivers and lakes. No breeding populations have been detected in Minnesota waters.

Individual invasive carp have been caught as far upstream in Mississippi River Pool 2 near the Twin Cities (bighead, grass, and silver), the King Power Plant on the St. Croix River by Oak Park Heights (bighead), and just downstream of Granite Falls in the Minnesota River (bighead).

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