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 Chinese false gudgeon (Abbottina rivularis) is native to China, the Korean peninsula, and Japan, but has been introduced unintentionally throughout Asia because of aquaculture activity. The species is purported to be a pest in fish farms, competing with commercial species. It is also suspected of hybridizing with a native goby in Central Asia. However, scientifically-defensible information on impacts was lacking. A. rivularis has a high climate match with the contiguous United States, with medium match or higher in nearly all locations. Overall risk posed by this species is uncertain.
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Uncertain Risk
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