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 mola is a freshwater fish native to the Paraguay-Paraná River basin in South America. This species is not known to have been introduced outside of its native range, making its history of invasiveness 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. mola is not known to be in trade. The climate match with the contiguous United States is medium, with the highest matches in the southeastern United States and Texas. The certainty of this risk assessment is low due to limited information and taxonomic uncertainty about this species. Overall risk posed by M. mola is uncertain.