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 migrans is a South American, trichomycterid catfish found in the Guayabero River in the Orinoco River basin in Colombia. There is no record of this species in trade or other human uses. T. migrans is regulated in multiple States. There have been no reports of this fish outside of its native range. Therefore, the history of invasiveness is classified as No Known Nonnative Population. The overall climate match was Low. There were small areas of medium match along the Pacific Coast and no areas of high match. The certainty of assessment was Low due to a general lack of information. The overall risk assessment category for this species is Uncertain.