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 pellegrini, the Barbless Carp, is a fish species native to Xingyun and Qilu lakes in Yunnan Province in southern China. This species was previously an abundant and economically valuable fish used for food, but populations crashed due to hybridization with introduced common carp (Cyprinus carpio) and competition with introduced bighead and silver carp (Hypopthalmichthys nobilis and H. molitrix). C. pellegrini has been re-introduced into Xingyun and Qilu Lakes through aquaculture for harvest and human consumption. C. pellegrini itself has never been reported as introduced or established outside of its native range, therefore history of invasiveness is uncertain. This species has a low climate match with the contiguous United States. Because there is no information on past introductions 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.
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Uncertain Risk
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