Ecological Risk Screening Summary - Trichomycterus nigricans (a catfish, no common name) - Uncertain Risk

Trichomycterus nigricans is a species of catfish native to southern Brazil. There is no indication this species is in trade or has other human uses. T. nigricans is regulated in multiple States. There are no records of introductions for Trichomycterus nigricans so the history of invasiveness is classified as No Known Nonnative Population. The overall climate match for T. nigricans was Medium. Most of the contiguous United States had a low match except for the southeast which was generally medium. The lack of georeferenced observations to use in the climate match reduces the certainty in the interpretation of the results. There was very little information available for T. nigricans and the certainty of assessment was Low. The overall risk assessment category is Uncertain.