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.
Metynnis luna is a freshwater fish native to the Amazon Basin in South America. It is used for human consumption and in the ornamental fish trade, but it is not known to be in trade in the United States. There are no known introductions of this species outside of its native range, so its history of invasiveness is uncertain. However, members of the Metynnis genus (species uncertain) have been collected beyond their native range in Florida, where their status is listed as locally established. M. luna has a low climate match with the contiguous United States, with highest matches in the southeastern United States, especially in Florida and along the Gulf Coast. With the lack of introduction history and the difficulty of identifying species in the genus, the certainty of this assessment is low. Overall risk for M. luna is uncertain.
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Uncertain Risk
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