Starry stonewort has become a poster child for invasives. Expensive to control and nearly impossible to eradicate.

The Pennsylvania Fish and Boat Commission is monitoring invasive rusty crayfish that act like gladiators as they try to take over native species.

Colorado Parks and Wildlife discovered rusty crayfish, an invasive species native to the Ohio River Basin, in Lake Granby this summer.

We've been studying the invasion and impacts of rusty crayfish since the 1970s, before zebra mussels and other major freshwater invasive species were introduced.

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 ...

University researchers discovered two new crayfish species in the Pacific Northwest, now threatened by invasive species.

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 ...

Researchers trap rusty crayfish to test ways to remove the invasive species. Researchers trap rusty crayfish at Tofte Lake to develop methods for removing the invasive species from northern waters ...

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 ...

Colorado Parks and Wildlife confirms invasive rusty crayfish in West Fork Little Thompson River; species poses a threat to native crayfish and aquatic habitats.

“Rusty crayfish are much more aggressive than our native crayfish species and are not an ideal food source for our sportfish,” said Robert Walters, CPW’s Invasive Species Program Manager.

Researchers trap rusty crayfish to test ways to remove the invasive species. (10m 41s) Warrior boats hold the David A. Andersen Memorial Walleye Shootout at Lake of the Woods. (14m 57s) ...