Ecological Risk Screening Summary - Tridensimilis brevis (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.

Tridensimilis brevis is a parasitic catfish native to the Amazon River basin. Several U.S. States prohibit or restrict the possession, transport, or trade of this species along with other members of the family Trichomycteridae. It has not been introduced outside of its native range, so the history of invasiveness is uncertain. Certainty of assessment is low due to a lack of information. T. brevis has a low climate match to the contiguous United States. The overall risk assessment category for this species is uncertain.