Ecological Risk Screening Summary - Trichomycterus riojanus (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 riojanus is a small catfish native to the La Rioja province of Argentina. This species has no documented history of invasiveness. T. riojanus has a medium climate match with the U.S., with the area of highest match located in the southwestern U.S. However, distributional data on the species are lacking and the climate match may be an overestimate. The Florida Fish and Wildlife Conservation Commission has listed the parasitic catfish T. riojanus as a prohibited species. Overall risk assessment category for this species is uncertain.