The Okanagan Crayfish (Pacifastacus okanaganensis) has been newly described from interior British Columbia and Washington State. Another new species, the Misfortunate Crayfish (Pacifastacus ...

Colorado Parks and Wildlife announced the discovery of rusty crayfish in Lake Granby. In a routine Aquatic Nuisance Species sampling done by Parks and Wildlife, multiple crayfish were found in Lake ...

For decades, the signal crayfish has been an ecological troublemaker. It is invasive and widespread across Europe, Asia, and parts of the United States. Recently, researchers at the University of ...

GRAND JUNCTION, Colo. (KJCT) - On May 2, Colorado Parks and Wildlife (CPW) publicly confirmed the presence of the invasive and aggressive rusty crawfish species in the West Fork Little Thompson River.

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, poses a ...

DENVER (KDVR) — An aggressive aquatic nuisance species was found in a northeastern Colorado river. According to Colorado Parks and Wildlife, rusty crayfish have been located in the West Fork Little ...