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.
Kutum (Rutilus frisii) is a semi-anadromous fish native to the Black and Azov Sea basins in Azerbaijan, Bulgaria, Georgia, Moldova, Romania, Russia, Slovakia, Turkey, and Ukraine. This species is involved in both commercial fisheries and aquaculture. R. frisii is regulated in Mississippi, New Mexico, and Texas. The history of invasiveness is Data Deficient. It has been introduced outside of its native range in Iran, Turkey, and the Former USSR, but it only became established in Iran. There are no documented impacts of its introduction. The overall climate match for the contiguous United States was high. Areas of high match were found in the Great Lakes basin and around the Rocky Mountains. Areas of low match were found in the southeast and most coastal areas. The certainty of assessment is low due to a lack of information on invasiveness and the gap in range coverage by georeferenced observations. The overall risk assessment category for Rutilus frisii is Uncertain.