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.
The history of invasiveness for Benthophilus stellatus is not documented. Many records of introduction were found, most resulting in established populations. Records of impacts of those introductions were not found. It is unknown if that reflects a lack of impacts, research on impacts, or research published in English. The climate match is high. The match was high for almost all of the Great Lakes Basin, where ships claiming NOBOB could introduce this species (Baker et al. 2015). The certainty of assessment is medium. The overall risk assessment category is uncertain. There is a strong history of introductions that result in established populations and a strong climate match with many areas in the continental United States. There would need to be credible evidence of negative impacts from this species in its invaded range to elevate the overall risk assessment category to high.
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Uncertain Risk
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