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 ...

Rusty crayfish have been found in the Upper Colorado River Basin for the first time. That's according to Colorado Parks and Wildlife, which says the discovery in Grand County of the invasive species ...

Crayfish play a pivotal role in freshwater ecosystems, acting as both keystone species and bioindicators of aquatic environmental health. Their ecological functions range from nutrient cycling to ...

The non-native and potentially invasive signal crayfish has appeared for the first time in Minnesota, prompting the state to warn that they are illegal without a permit. Officials confiscated 10 ...

Researchers in the Rio Grande Valley wetlands are increasingly concerned as they examine numerous traps and nets in search of a possible threat. Residents in southern Texas reported spotting an ...

There’s a “growing concern” in the wetlands of the Rio Grande Valley as researchers sift through dozens of traps and nets in search of a potential “threat,” according to Texas officials. Locals in ...

An invasive crayfish species from Australia is posing a threat to the native crayfish species in the Rio Grande Valley, Texas officials warn. Screengrab from Texas Parks and Wildlife video There’s a ...