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. This additional information will help inform decisions on where, when, and how the species may be used to minimize risks of them becoming invasive.
Cherax urospinosus is a species of crayfish that is only known from a single specimen that was collected from a concrete drain in a suburb of Brisbane, Australia. C. urospinosus has an overall medium climate match to the contiguous U.S. and no introductions have been reported in the U.S. or elsewhere. The Florida Fish and Wildlife Conservation Commission and the Washington Department of Fish and Wildlife have listed the crayfish Cherax urospinosus as a prohibited species. With all the uncertainties surrounding this species and its lack of introduction history, the overall risk assessment category is Uncertain.
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Uncertain Risk
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