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.
Austrolebias nigripinnis is an annual killifish native to Uruguay and Argentina. The species was introduced into agricultural areas in California as a potential mosquito control species. Due to issues with survival and reproduction of the species, this experiment was eventually terminated and none of the introduced specimens are believed to have survived. A. nigripinnis has also been introduced to the Philippines and China for mosquito control and aquarium use, respectively. Impacts of introduction are unknown, as is the establishment status of introduced populations in Asia. Climate match to the contiguous U.S. was medium. Overall risk posed by A. nigripinnis is uncertain.
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Uncertain Risk
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