Ecological Risk Screening Summary - European Mudminnow (Umbra krameri) - 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.

European Mudminnow, Umbra krameri, is a fish found in large river systems of Eastern Europe. The history of invasiveness is none documented. There are a few records of introduction from the 1920s and 1960s. Only the introduction in Poland may have resulted in established populations. A single record in FishBase indicates a possible negative impact, but does not provide enough information to be able to determine the scientific validity of that claim. The native populations of Umbra krameri have been in significant decline and it is listed as protected in many of the countries in its native range. The climate match is high, especially around the Great Lakes area. The certainty of assessment is low due to lack of information about the impacts of the established population. The overall risk category is uncertain.