Zebra mussels have invaded the Red River Basin.
North Dakota Game and Fish Department biologist Doug Leier says the mussels have been found in Pelican Lake in northwestern Minnesota's Otter Tail County. He says it's the first time the invasive species has been discovered in the Red River Basin watershed.
The fast-growing mussel can destroy ecosystems and clog machinery and engines. Leier says the mussels were first found in Minnesota in 1989, in the Duluth area, and have been moving west since.
Information from: KFGO-AM