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.
Characodon audax is known from only a few locations in central Mexico. It has been designated as a “vulnerable” species by the International Union for Conservation of Nature (IUCN). C. audax has a medium climate match in the contiguous United States, with the area along the U.S.-Mexico border showing the highest match. Although no C. audax have been documented in the wild in the United States, there remains the potential for introduction via the aquarium trade pathway. The species has not been documented as introduced elsewhere in the world, either. Without being able to observe introductions in other parts of the world, it is impossible to know the potential impacts of introduction of C. audax to the U.S. The overall risk posed by C. audax is uncertain.
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Uncertain Risk
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