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.
Scatophagus tetracanthus, African scat, is a fish native to the rivers, lagoons, harbors and estuaries of the Indo-West Pacific, including eastern Africa, Australia, and Papua New Guinea. It can reproduce in fresh waters and is venomous. S. tetracanthus is present in the aquarium trade in the United States and internationally, and is also a minor target for commercial fishing. However, there have been no reported introductions of S. tetracanthus into the wild outside its native range, so the history of invasiveness is uncertain. The climate match with the contiguous United States is medium. Much of the contiguous United States has a low match, except southern Florida, southern Texas, and southeastern Arizona. Certainty of assessment low due to the lack of introduction history. Overall risk posed by this species is uncertain.



