Get the word out to the good folks of the Cajun Navy, because they are needed again. This time, however, they are needed in Minnesota.

The red swamp crayfish is more at home in Louisiana than northwest Minnesota. But state conservation officials say the invasive species has been discovered in a Clay County lake and might not be leaving anytime soon.

Two of the creatures were found in Tilde Lake, northeast of Moorhead, Minn., the Minnesota Department of Natural Resources said Thursday. The agency suggested the creatures could be castoffs from a classroom aquarium or a crawfish boil.

“Many aquarium animals and plants are invasive species that can cause serious harm if released into the wild,” Heidi Wolf, DNR invasive species unit supervisor,said in a statement.

The Cajun Navy, as with many residents of Louisiana, are more than likely ready and willing to serve in times of crises. However, this isn’t a hunting expedition. It is a educational mission, to teach our countrymen in the north how to catch and dispose of these invasive pests. No one should have to live in conditions where *ahem* “crayfish” are wandering free.

Get the band back together. It’s time to go to work.