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

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 giganteus is a freshwater parasitic catfish from South America. It has not been reported outside of its native range of the Upper Negro River basin in Brazil. Due to the lack of introduction history, the history of invasiveness is uncertain. This species has a low climate match to the contiguous United States overall, with medium match in peninsular Florida. Due to the lack of information about potential impacts of introductions, the certainty of assessment is low. The overall risk posed by T. giganteus is uncertain.