The Red Lionfish, Pterois volitans, Smithsonian is a poisonous tropical fish native to southeast Asia. The fish is invading the Atlantic from Florida and the Bahamas to Rhode Island, and wreaking ecological havoc. The big problems with non-native species are a lack of natural predators and a lack of natural defense on the part of the prey.
Sharks, Groupers and other predators keep the populations in check in south-east Asia. Red Sea Cornetfish (Fistularia commersoni) are natural predators of Pterois miles, a related species of scorpaenidaea. Importing south-east Asian sharks or red sea cornetfish would probably be a stupid idea, one where the cure may be worse than the disease. I wonder, however, if we can train dolphins or sea lions to hunt or trap the Red Lionfish? Continue reading