May 2, 2025 / 4:18 PM MDT / CBS Colorado An aquatic nuisance species has been found for the first time in the West Fork Little Thompson River, according to Colorado Parks and Wildlife.

The invasive species was reported on April 7 in Larimer County’s West Fork Little Thompson River A rusty crayfish, a nonnative nuisance species, was discovered in Larimer County in April.

LARIMER COUNTY, Colo — A non-native crustacean has been discovered in the Little Thompson River for the first time. Colorado Parks and Wildlife (CPW) confirmed the presence of rusty crayfish in ...

Aggressive, invasive species found in Colorado river by: Morgan Whitley Posted: May 5, 2025 / 12:39 PM MDT Updated: May 5, 2025 / 12:51 PM MDT ...

Rusty crayfish, an invasive species, has been discovered in the Little Thompson River in Larimer County, Colorado. This aggressive crayfish, known for its big appetite and rapid reproduction ...