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 therma is a small catfish known only from its type locality, a man-made thermal bath in Miraflores, Bolivia. This species has never been reported as introduced outside of its native range. History of invasiveness is uncertain. Several U.S. States prohibit or restrict the possession, transport, or trade of this species along with other members of the family Trichomycteridae. T. therma has a low overall climate match with the contiguous United States, with medium match in parts of New Mexico and coastal California. Certainty of assessment is low due to lack of information on impacts of introduction, and the inadequacy of the climate matching analysis to account for T. therma’s adaptation to high water temperatures. Overall risk posed by this species is uncertain.