Ecological Risk Screening Summary - Trichomycterus weyrauchi (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 weyrauchi is a small catfish native to the Ucayali River basin in Peru. The species is considered endangered because it occurs in a single location affected by urban waste waters, causing a continuous decline in the quality of its habitat. More research is needed to determine if the species is more widely distributed and to address existing knowledge gaps. There are no reported introductions of this species. History of invasiveness is uncertain, and certainty of assessment is low. T. weyrauchi has a low climate match within the contiguous United States, although medium matches occurred along parts of the Pacific Coast, southeast New Mexico and in Florida. Overall risk assessment is uncertain due to the limited amount of available information about the species.