When I was a kid, people would buy all color phases of them and it was to be big biz to raise them like mink... they were to be a sure thing to make big money!
They didn't go over in the clothin industry for many reasons I can't remember...I was pretty young then... so YEAH..it was a long time ago.
Down below my Uncles, a guy had a block building with pens in them full of blonde, black, white, grey..nutria.
Many people when the market went bust, just turned them "loose". Ergo, where the winters weren't too tough, they dug in and reproduced like good rodents do... Black Water Swamp federal refuge (E.Shore of MD) had horrid problems and paid guys to trap, kill, poison... and they pretty much got them under control... but they live much like big muskrats tunneling and such.
Now, Jag...ya don't eat rodents? What about bunnies and tree rats...they're rodents!