Ecological Risk Screening Summary - Hypostomus gymnorhynchus (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.

Hypostomus gymnorhynchus is an armored catfish that is native to coastal rivers of northeastern South America, primarily in Suriname and French Guiana. It is a detritivore that can be found in and around fast current and rapids. According to one source, it is used in the aquarium trade. The history of invasiveness for H. gymnorhynchus is uncertain. There were no records of introductions and subsequently no information on impacts. The climate match was low; there were no areas of medium or high match in the contiguous United States. The certainty of assessment is low. The overall risk assessment category is uncertain.