HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsGoliath grouper Goliath grouper (Epinephelus itajara) Scientific name: Epinephelus itajara Lichtenstein, 1822 The Goliath grouper (Epinephelus itajara) is a brackish-water fish of the family Serranidae. BiologyA solitary species occurring in shallow, inshore areas. Found on rock, coral, or mud bottoms. Juveniles found in mangrove areas and brackish estuaries. Large adults may be found in estuaries. Adults appear to occupy limited home ranges with little inter-reef movement. Feeds primarily on crustaceans, particularly spiny lobsters as well as turtles and fishes, including stingrays. Territorial near it's refuge cave or wreck where it may show a threat display with open mouth and quivering body. Larger individuals have been known to stalk and attempt to eat divers. Over-fished, primarily by spear fishing. Marketed fresh and salted. Meat is of excellent quality. Important game fish. Reported to reach weights of more than 315 kg.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEpinephelus itajaraFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length250Common length150Depth range100 m (328 ft)EnvironmentMarine; brackish; reef-associated; depth range ? - 100 m, usually ? - 46 mClimateSubtropicalDistributionWestern Atlantic: Florida, USA to southern Brazil, including the Gulf of Mexico and the Caribbean. Eastern Atlantic: Senegal to Congo (reported as Epinephelus esonue, ); rare in Canary Islands. Eastern Pacific: Gulf of California to Peru.Conservation status (IUCN)Critically Endangered (CR) (A2d), IUCN Grouper and Wrasse Specialist GroupThreat to humansTraumatogenicUsesFisheries: minor commercial; gamefish: yesResilienceLow, minimum population doubling time 4.5 - 14 years (K=0.13; tm=5.5-6.5) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026