Lionfish, Pterois volitan, Everglades, National Park
Image Courtesy of the USGS
The lionfish is a venomous predatory fish native to the Indo-Pacific waters that was introduced into Atlantic waters as early as the 1980s. Lionfish have the potential to impact the marine ecosystems of south Florida. Preliminary evidence suggests that the proliferation of lionfish may diminish native species of commercial, recreational and ecological importance. In addition, lionfish stings-though rare-are painful and occasionally result in serious injury.
The invasion of the lionfish is unprecedented, as it is currently the only known invasive marine fish recognized to have established itself throughout the Caribbean and the coastal waters of the southeastern United States. Management and control may require novel approaches, close coordination across jurisdictional boundaries, and assistance from the general public.
What's the Problem?
Image courtesy of CORE
Preliminary evidence suggests the proliferation of lionfish may diminish native species, change community composition, alter ecological function, and present a hazard to human health.
Lionfish in Everglades National Park
Thus far, only a handful of lionfish have been removed from the waters of Florida Bay within the southern boundary of the Everglades National Park. Still, given the growing abundance of lionfish in nearby waters, and the availability of favorable habitat within the park, it is expected that observations of additional specimens will increase in both number and distribution in Everglades.
The Everglades and Dry Tortugas lionfish management plan is currently in review. The preferred alternative outlined in the plan is to "target specific areas within each park to suppress the invasion of lionfish." Key areas will be identified in Florida Bay where staff will continually survey for and remove lionfish on a regular schedule. These key areas will be preserved in their natural state to afford visitors opportunities to experience the character of park resources prior to invasion by lionfish.
Did You Know?
Of the 27 species of snakes in Everglades National Park, only four are venomous – the cottonmouth, the diamondback rattlesnake, the dusky pygmy rattlesnake, and the coral snake. The snake to the left is the non-venomous, endangered Indigo Snake.