The order comes in the wake of the nonnative species being caught in the Gardner River at its confluence with the Yellowstone just outside of Yellowstone National Park.
The Wyoming Game and Fish Department is asking anglers, crayfish trappers, and other outdoor recreationists are being asked to report any rusty crayfish which are being found in the Laramie River watershed.
Rusty crayfish (Orconectes rusticus) are native to the Ohio River Basin but were discovered in Wyoming in 2006 after being illegally introduced into private ponds and then escaping into Wagonho