Dandy Don, here is the link concerning lionfish testing positive for ciguatera (fish poisoning) in the caribbean.
Lionfish and Ciguatera, the Facts have Changed | The CORE Foundation
WHAT IS CIGUATERA?
Ciguatera is a unique type of food poisoning caused by the consumption of marine species that harbor natural toxins originating in certain tropical waters. These species and locations are linked by a food chain, which generates and accumulates a heat-resistant, acid-stable collection of toxic substances known as ciguatoxin. The initial culprits are certain species of microplankton or dinoflagellates that form the toxins that higher-order predators and man consume. These natural toxins can concentrate as they move up the food chain, but their adverse effects appear limited to man.
WHERE DOES CIGUATERA OCCUR?
Ciguatera occurs in marine waters near tropical reefs. The common boundaries referenced are for tropical reef waters between latitudes 35° south and north. Within these areas the occurrence is unpredictable and patchy, both in distribution and time. The majority of reefs are not ciguatoxic and outbreaks are usually localized. Thus, knowledge of the ciguatoxic areas or reefs is usually based on the local experience of fishermen and consumers.
Ciguatera should be a consideration for people travelling to Caribbean areas. Based on seafood origins, primary areas of occurrence for the United States are Hawaii, Guam and Puerto Rico where fish from tropical sources are consumed.
WHICH SEAFOODS CAN BE CIGUATOXIC?
Potentially any tropical marine fish participating in a food chain with ciguatoxin could become ciguatoxic, but documented illnesses and some recent analyses indicate certain fish are more suspect. In the Caribbean region, the fish with the worst reputation are amberjacks and other jacks, moray eels, and barracuda. Fish with questionable reputations are hogfish, scorpion fishes, certain tiggerfish, and certain snapper and groupers.
Unfortunately, the usefulness of a list of ciguatoxic fish is questionable because of the diversity of fish species and the variety of names used. For example, local fisherman may refer to a variety of fish as "jacks" or "snappers" when they are actually a mackerel, wrasse or other species. Certain species of snapper and grouper are not a risk for ciguatera, yet their popular reputation suffers because they are misidentified.
AND CHUCKITAIL, while your Jupiter, FL lionfish may be safe to eat, it is not true for all lionfish in the caribbean.
QUOTE=Chuckitall;5770828]My buddy who invented the Liontamer to kill Lionfish, last Sat fed 100 people LF during an important fund raiser for the reefs. This occurred in Jupiter and nobody got sick or died. Give it a break, LF are as healthy to eat as any other reef fish.[/QUOTE]