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.
Aimara (Hoplerythrinus unitaeniatus) is a South American air breathing fish that is native to Central and South America: São Francisco, Amazon, Paraná, Orinoco and Magdalena River basins [Panama, Trinidad and Tobago, Argentina, Bolivia, Brazil, Ecuador, Paraguay, Peru, Uruguay and Venezuela], and coastal rivers in Guyana, Suriname and French Guiana. H. unitaeniatus prefers freshwater habitats with little current and can survive outside of water for extended periods of time. The history of invasiveness is uncertain since it has not been documented anywhere outside of its native range. The overall climate match for the contiguous United States was medium. The Gulf Coast and southeast had high to medium matches while most of the remainder of the contiguous United States had a low match. The certainty of assessment is low. The overall risk assessment category for Hoplerythrinus unitaeniatus is uncertain.