Mycteroperca bonaci (Poey, 1860)
Black grouper
photo by Randall, J.E.

Family:  Epinephelidae (Groupers)
Max. size:  150 cm TL (male/unsexed); max.weight: 100 kg
Environment:  reef-associated; marine; depth range 60 - 250 m
Distribution:  Western 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.
Diagnosis:  Dorsal spines (total): 11-11; Dorsal soft rays (total): 15-17; Anal spines: 3-3; Anal soft rays: 11-13. Distinguished by the following characteristics: Side body has rectangular dark gray blotches. Outer third of second dorsal, anal and caudal fins black. Edge of preopercle smooth, without pronounced lobe at angle; 17-24 total gill rakers (Ref. 26938); depth of body 3.3-3.5 times in SL; head length 2.5-2.8 times in SL; evenly rounded preopercle, without distinct notch or lobe at the angle; subequal sizes of anterior and posterior nostrils (Ref. 89707).
Biology:  Minimum depth from Ref. 126840. A solitary species (Ref. 26340) inhabiting rocky and coral reefs (Ref. 9710). Adults feed primarily on fishes; juveniles mainly on crustaceans. Oviparous (Ref. 205). A protogynous hermaphrodite (Ref. 55367). Forms spawning aggregations (Ref. 55367). Common but difficult to approach (Ref. 9710). Marketed fresh and its flesh is of excellent quality.
IUCN Red List Status: Near Threatened (NT); Date assessed: 20 November 2016 (A4bd) Ref. (130435)
Threat to humans:  reports of ciguatera poisoning


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