Ecological Risk Screening Summary - Cusped Crayfish (Cherax cuspidatus) - Uncertain Risk

Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.

Cherax cuspidatus is a crayfish native to northeastern coastal New South Wales, Australia. The species may be exploited through recreational fishing in its native range, but no formal fishery exists. No introductions of this species have been reported. The Florida Fish and Wildlife Conservation Commission and the Washington Department of Fish and Wildlife have listed the crayfish C. cuspidatus as a prohibited species. Climate match is low overall for the contiguous U.S., with the highest climate matches occurring in the southeastern U.S. Without a history of introduction, the overall risk posed by C. cuspidatus to the contiguous U.S. is uncertain.