The Minnesota Department of Natural Resources says a grass carp found in the Mississippi River north of Sartell may have been intentionally released.
The agency says an angler bowfishing on the Mississippi last week shot the 25-pound fish. The DNR says the exotic species previously was found much further south in Minnesota, including lower portions of the Mississippi.
DNR fisheries biologists believe the 36-inch fish could not have gotten past the dams at Coon Rapids, St. Cloud and Sartell. So the agency says the fish likely escaped from a private pond through floodwaters or was released intentionally.
The DNR says like bighead and silver carp, grass carp also can cause environmental harm. The species can grow to 70 pounds and cause water quality problems.