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.
Pontogammarus setosus is an amphipod that is found in freshwater in the Ponto-Caspian region. P. setosus has not been reported anywhere outside of its native distribution. History of invasiveness is classified as No Known Nonnative Population. The overall climate match for the contiguous United States is High. Most of the contiguous United States had a high to medium match with areas of high match found in the Rocky Mountains and northern Great Lakes. Much of the northern Pacific Coast and the Southeast had a low match. The certainty of assessment is Low due to an overall lack of information. The overall risk assessment category for Pontogammarus setosus is Uncertain.




