For decades, the signal crayfish has been an ecological troublemaker. It is invasive and widespread across Europe, Asia, and ...

Researchers have identified two new crayfish species in the Pacific Northwest, long mistaken for the invasive Signal Crayfish ...

One of the biggest risks to native crayfish is people moving species between ecosystems and waterways. Whether this movement is intentional through fishing bait or aquaculture, or unintentional ...