HomeMarine aquarium fishBasslets, cardinalfish & hawkfishBlack grouper Black grouper (Mycteroperca bonaci) Scientific name: Mycteroperca bonaci Poey, 1860 The Black grouper (Mycteroperca bonaci) is a marine fish of the family Serranidae. BiologyA solitary species inhabiting rocky and coral reefs. Adults feed primarily on fishes; juveniles mainly on crustaceans. Oviparous. A protogynous hermaphrodite. Forms spawning aggregations. Common but difficult to approach. Marketed fresh and its flesh is of excellent quality.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMycteroperca bonaciFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length150Common length70.0Depth range6–33 m (20–108 ft)EnvironmentMarine; reef-associated; depth range 6 - 33 mClimateTropicalDistributionWestern Atlantic: Bermuda and Massachusetts, USA to southern Brazil, including the southern Gulf of Mexico and the Caribbean. Adults are unknown from the northeastern coast of the USA.Conservation status (IUCN)Near Threatened (NT), IUCN Grouper and Wrasse Specialist GroupThreat to humansReports of ciguatera poisoningUsesFisheries: highly commercial; gamefish: yes; aquarium: public aquariumsResilienceLow, minimum population doubling time 4.5 - 14 years (K=0.16; tmax=14; Fec=500,000) More basslets, cardinalfish & hawkfishBanggai cardinal fishPterapogon kauderniYellowmouth grouperMycteroperca interstitialisYellowlined bassletGramma linkiBlackcap bassletGramma melacaraDusky bassletLipogramma anabantoidesBanded bassletLipogramma evidesSee all basslets, cardinalfish & hawkfish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026