Ecological Risk Screening Summary - Crescent Betta (Betta imbellis) - Uncertain Risk

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.

Crescent betta (Betta imbellis) is a fish native to Thailand, Malaysia, and Indonesia. It is used in the aquarium trade, but does not appear to be sold in the United States. B. imbellis has been reported as introduced outside of its native range to Singapore, although it is possible that the species was originally native there. No information about impacts, or lack thereof, of its introduction has been reported. The climate match with the contiguous United States is low, with a medium match only in south Florida. Due to lack of information about the impacts of introduction of B. imbellis, the risk is uncertain.