by Chris Patrick
The lionfish (Pterois volitans) resembles a psychedelic fish-shaped peppermint, striped in red and white and decked with feathery, fan-like fins. But its venomous spines and invasive-species status make it much less innocuous than candy.
Lionfish are native to the Indo-Pacific. They’re popular aquarium fish—it’s likely ex-aquarium-owners introduced them into the Atlantic. They spread rapidly along the southeastern coast of the United States, into the Gulf of Mexico and the Caribbean.
Lionfish flourish in their introduced range, where they have no predators. They breed quickly—a female can produce up to two million eggs per year. They live a long time, sometimes more than 15 years. And they’ll eat basically anything that fits into their mouths, decimating populations of native marine animals with their voracious, indiscriminate appetites. When they arrive at a reef, they can reduce the number of native fish by 80 percent.