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.
Tridentopsis cahuali is a species of parasitic catfish found in the Paraguay River basin in Argentina and Brazil. There is little information on the biology of the fish. There have been no reports of the species outside of its native range. Several U.S. States prohibit or restrict the possession, transport, or trade of this species along with other members of the family Trichomycteridae. History of invasiveness is uncertain. The climate match to the contiguous United States is medium. Much of peninsular Florida and the southeast coast of Texas have a high climate match. Certainty of assessment is low given the lack of information. The overall risk assessment category for this species is Uncertain.