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 uruguayensis is a South American suckermouth catfish native to Uruguay River basin. It has not been reported as introduced or established anywhere in the world outside of its native range; therefore, there is no information on impact of introduction. The history of invasiveness is uncertain. The overall climate match for the contiguous United States was medium. The western and northeastern sections of the contiguous United States had low climate matches and the southeastern section had medium to high matches. Due to lack of information, the certainty of assessment is low. The overall risk assessment category for this species is uncertain.