CHAMPAIGN-URBANA, Ill. (WCIA) — University of Illinois researchers studying an invasive species of crayfish recently made a unique discovery — two new species that had long been mistaken for the ...

Researchers at the University led by Eric Larson, professor in ACES, made a groundbreaking discovery pertaining to the Signal Crayfish. They found there are two distinct species of crayfish residing ...

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

Signal crayfish, an invasive nonnative freshwater crustacean species, have been found in a western Minnesota lake, according to the state Department of Natural Resources. The DNR said Friday that this ...

An invasive species has been confirmed in one of Minnesota’s Douglas County lakes. According to the Minnesota Department of Natural Resources, the signal crayfish has been found in Lake Winona. So far ...

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 recently discovered two new crayfish species: the Okanagan crayfish and the misfortunate crayfish (Pacifastacus malheurensis). Because both species were previously thought to be signal ...

These crayfish are larger, more aggressive, and reproduce more quickly than native species, leading them to dominate ecosystems and disrupt food webs. Rusty crayfish have a significant impact on ...

Populations of rusty crayfish, an invasive species in the lakes of Minnesota and Wisconsin, have seen a steady decline in some regions—and, for once, humans aren't responsible. A study published in ...

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 ...

It’s crayfish season in Louisiana, but the Pacific Northwest is receiving all the crayfish spotlight. Researchers recently discovered two new species of the crustaceans: the Okanagan crayfish and the ...

The super invasive rusty crayfish, sometimes called a gladiator, has been slowly taking over several waterways in Pennsylvania. The crayfish were transported to Pennsylvania from their native range in ...