Grouper
Groupers are fish of any of a number of genera in the subfamily Epinephelinae of the family Serranidae, in the order Perciformes.
Not all serranids are called groupers; the family also includes the sea basses. The common name grouper is usually given to fish in one of two large genera: Epinephelus and Mycteroperca.
The word "grouper" comes from the word for the fish, most widely believed to be from the Portuguese name, garoupa. The origin of this name in Portuguese is believed to be from an indigenous South American language.
In New Zealand and Australia, the name for several species of Grouper is referred to as Groper, as the Epinephelus lanceolatus Queensland Groper. In the Middle East, the fish is known as Hammour, and is widely eaten, especially in the Persian Gulf region.
Health concerns
There is a small risk of ciguatera poisoning from eating coral-reef fish such as grouper. The toxin accumulates in the liver. Avoid eating the liver of such fish.