Ecological Risk Screening Summary - Corbicula madagascariensis (a clam, 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. This additional information will help inform decisions on where, when, and how the species may be used to minimize risks of them becoming invasive.

Corbicula madagascariensis is a freshwater bivalve, endemic to Madagascar. Corbicula madagascariensis has not been reported as introduced or established anywhere outside of its native range, therefore history of invasiveness is uncertain. The overall climate match for the contiguous United States is low. The majority of the contiguous United States had a low climate match with some areas of medium match in southern Florida, the southwest, and southern Texas. No georeferenced locations were available for climate matching. Source locations for the climate match were chosen to represent the distribution of the species as described. The certainty of assessment is low due to lack of information. The overall risk of assessment for Corbicula madagascariensis is uncertain.