From The Pueblo Chieftain (Matt Hildner):
Tom Remington, the division’s director, signed the order this week in an effort to keep the rusty crayfish from being moved into other waters. “Rusty crayfish are a tenacious invasive species that have the potential to impact streams and lakes,” Greg Gerlich, the agency’s aquatic section manager, said in a news release. The crustacean has large claws and out-competes native species for food and habitat. They’re also capable of clearing large areas of aquatic plants, reducing habitat for invertebrates and shelter for small fish.
More rusty crayfish coverage here.