Ecological Risk Screening Summary - Dikerogammarus istanbulensis (an amphipod, 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.

Dikerogammarus istanbulensis is an amphipod that is native to Turkey. This species was recently described to science. There were no records of introduction and no indication this species is in trade. Therefore, the history of invasiveness is classified as No Known Nonnative Population. The climate match for the contiguous United States was High. Most of the contiguous United States had a locally high or medium match, areas of locally low match could be found along the Pacific Coast, the desert southwest, the Gulf and South Atlantic coasts, and in patches in New England. The certainty of assessment is Low due to a lack of information. The overall risk assessment category is Uncertain.