Ecological Risk Screening Summary - Cherax nucifraga (a crayfish, no common name) - 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 nucifraga is a crayfish native to the far northern Northern Territory, Australia. The climate match indicates low risk to the contiguous U.S., but it is based on a limited number of source locations. No introductions of this species have been reported, so the impacts of introductions remain unknown. Florida and Washington prohibit possession or trade of C. nucifraga. Overall risk assessment of Cherax nucifraga to the contiguous United States is uncertain due to lack of information on invasiveness potential and species distribution.