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.
Trichomycterus heterodontus is a South American catfish found in the Mendoza River basin in Argentina. T. heterodontus is regulated in multiple States. The history of invasiveness is No Known Nonnative Population. There have been no reports of this fish outside of its native range. The climate match is medium. Areas of high climate match were in Texas and the southwest. The certainty of assessment is low. The overall risk assessment is uncertain.
Publication date
Type of document
Uncertain Risk
Program