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. This additional information will help inform decisions on where, when, and how the species may be used to minimize risks of them becoming invasive.
The history of invasiveness for Clupeonella cultriventris is not documented. There were many records of introductions with resulting established populations that are still expanding. This species can compete with native species and become a dominant species in invaded areas but the associated ecological impacts have not been documented. The climate match is high. The source points available for the match were limited but a more complete set of source points would only lead to a greater climate match. The certainty of assessment is medium. The overall risk assessment category is uncertain.