Ecological Risk Screening Summary - Helicana japonica (a crab, 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.

Helicana japonica is crab that is native to estuaries in East Asia (Korea, Japan, and China). This crab may be used for human consumption. H. japonica has not been reported outside of its native range. The History of Invasiveness is classified as No Known Nonnative Populations. The overall climate match for the contiguous United States was Medium. Areas of medium to high match were found throughout much of the east and into part of the Southwest. The climate match does not account for salinity tolerance. Species establishment will require both a suitable climate and the availability of aquatic habitat with appropriate salinity. The certainty of assessment is Low because of a lack of information and salinity requirements. The overall risk assessment category is Uncertain.