Groupers are fish of any of a number of genera in the subfamily Epinephelinae of the family Serranidae, in the order Perciformes.
Grouper
Anatomy of a grouper
A monogenean parasitic on the gill of a grouper
Gulai kerapu, a grouper-based Padang food
Serranidae is a large family of fishes belonging to the order Perciformes. The family contains about 450 species in 65 genera, including the sea basses and the groupers. Although many species are small, in some cases less than 10 cm (3.9 in), the giant grouper is one of the largest bony fishes in the world, growing to 2.7 m in length and 400 kg (880 lb) in weight. Representatives of this group live in tropical and subtropical seas worldwide.
Serranidae
A typical member of Anthiadinae, the sea goldie, is small, colorful, planktivorous and social.
Like many other large species in the Epinephelinae subfamily, the Nassau grouper is threatened by overfishing.