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.
Silver Dollar (Metynnis argenteus) is a fish native to rivers of northern South America. Metynnis spp. are common in the pet trade, including in the United States, and support a minor commercial fishery where native. There are no reports of introductions of Metynnis argenteus. 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. Metynnis spp. found in Florida are believed to be aquarium releases. Climate match to the contiguous United States is low; however, there are areas of medium climate match in southern Florida and southeastern Texas. Certainty of assessment is low because of a lack of information and taxonomic confusion. Overall risk posed by this species is uncertain.