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.
Cyprinus yunnanensis is a carp species endemic to Qilu Lake in Yunnan Province, China. This species is critically endangered in its native habitat. Historically it was an important economic fish in local areas. C. yunnanensis has a low climate match with the contiguous United States. It has never been reported as introduced or established outside of its native range, therefore history of invasiveness is uncertain. Because there is no information from which to assess the risk this species poses to the contiguous United States, the certainty of this assessment is low. The overall risk assessment category is uncertain.