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.
Hypostomus occidentalis is a catfish native to the Suriname River basin in Suriname. This species has no documented history of introduction in the United States or elsewhere outside its native range, and it is not known to be in trade. However, unidentified species of Hypostomus are established in the United States. History of invasiveness is uncertain. The climate match was low throughout the contiguous United States. Because no georeferenced occurrence data were available, the climate match was developed using the entire Suriname River basin. Due to the lack of documented introduction history, lack of georeferenced occurrences, and substantial taxonomic uncertainty, certainty of this assessment is low and overall risk is uncertain.
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Uncertain Risk
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