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.
Serrasalmus manueli is a species of piranha native to the Amazon and Orinoco River basins in Brazil, Colombia, and Venezuela. The species is present in trade in the United States, but it is rare and expensive to purchase. Numerous U.S. states prohibit the possession or trade of piranhas. No reports of introductions were found. History of invasiveness is No Known Nonnative Population. Certainty of assessment is low because of the lack of information on impacts of introduction. The climate match was low throughout the contiguous United States. Overall risk posed by S. manueli is Uncertain.
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Uncertain Risk
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