Ecological Risk Screening Summary - Eurasian Dace (Leuciscus leuciscus) - 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.

Leuciscus leuciscus, the Eurasian Dace, is a freshwater fish native to areas of Europe and Asia. It has been introduced to non-native locations in Italy, Ireland, and France. Multiple sources discuss potential negative impacts of the introduction of L. leuciscus outside of its native range, but no negative impacts have been definitively proven. This species may possibly out-compete salmonids for spawning habitat and food. This species has not been reported in the United States. It has an overall high climate match with the contiguous United States. The overall risk for this species is uncertain; further research will be needed to determine the true risk of this species.