Ecological Risk Screening Summary - Broadstripe Topminnow (Fundulus euryzonus) - 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.

Fundulus euryzonus is native to Tangipahoa and upper Amite River system (Lake Pontchartrain drainage) in Mississippi and Louisiana. F. euryzonus is a small topminnow that can be found in quiet backwaters of small streams (NatureServe 2013). Climate match for this species is high, with highest matches in its native range. F. euryzonus is a species of special concern in Mississippi due to its limited habitat distribution and ongoing habitat alterations (Ross 2001). It is also listed as “Vulnerable” by IUCN (NatureServe 2013). Since it has not been introduced outside of its native range, its history of invasiveness is uncertain. However, its imperiled status suggests that it is unlikely to spread and establish. The overall risk categorization for this species is uncertain.