Black Grouper

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Black Grouper

Species Information

Scientific Name:Mycteroperca bonaci
Common Names:black grouper, Blackfin grouper
Environment:Nearshore, Offshore
Ideal Temp:70-84ºF (21-29ºC)

About Black Grouper

Mycteroperca bonaci, the black grouper, black rockfish or marbled rockfish, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. This species is found in the western Atlantic Ocean from the northeastern United States to Brazil.

Black Grouper has an oblong, leterally compressed body with a standard length which is 3.3 to 3.5 times its depth. It has an evenly rounded preopercle with no incisions or lobes at its angle. The dorsal fin contains 11 spines and 15-17 soft rays while the anal fin has 3 spines and 11-13 soft rays, both fins having rounded margins. The caudal fin is truncate to emarginate, althoughit may be convex if spread widely. This species has an overall t’s an olive grey colour and is marked with dark blotches and brassy hexagonal spots over the head and flanks. The pectoral fins are sooty brown, fading to orange towards the margin; the soft rayed part of the dorsal fin and the anal fin, as well as the forward edge of the pelvic fin have a dark margin. This fish attains a maximum total length of 150 centimetres (59 in), although they are more common at around 70 centimetres (28 in) and a maximum published weight of 100 kilograms (220 lb).

Black Grouper occurs over rocky bottoms and coral reefs at depths of 10 to 30 metres (33 to 98 ft), however in the eastern Gulf of Mexico it is normally encountered at depths of more than 30 metres (98 ft). It is usually a solitary species, the adults feeding mainly on fishes, such as grunts, snapper and herrings, and the juveniles feed on crustaceans. Black groupers have been recorded forming seasonal feeding aggregations along the outer continental shelf off Brazil, these coincide with spawning aggregations of some fish species the groupers prey on. They are is a monandric protogynous hermaphrodites and they form spawning aggregations and these have been reported from in the Gulf of Mexico and Caribbean Sea. Females attain sexual maturity at around 5years old and at a length of around 82.6 centimetres (32.5 in) and the chenge of sex to males occurs when they are around 15 years old and at a mean length of 121.4 centimetres (47.8 in).

Black Grouper Fishing

World Record:56.24 kg (124 lb 0 oz) Gulf of Mexico, Texas, USA 11-Jan-2003
# Fish Caught:38280 documented in database.
Earliest Record:1/1/1861 12:00:00 AM and located at 21.59196, -79.43408.
Latest Record:4/26/2023 10:29:57 AM and located at 25.93197, -80.33045.
Common Techniques:Bottom Fishing, Jigging
Popular Lure Types:Bottom Rig, Jigs
Fishing Spots:735 Black Grouper fishing spots.

Latest Black Grouper Fishing Reports and Spots

Trout/Snook bite is good. - 4/26/2023 10:29:57 AM

I fished Biscayne Bay and Flamingo in the last few days and they both produced a lot of Trout and Snook. There are Mullet schools in both place (View)

A Catch and Release Black Grouper - 2/24/2023 7:37:34 PM

It can be tough to let go sometimes but this black grouper gets a free pass. It’s just a few more months until the season. Join us for 4 hours (View)

Fishing Report Thursday January 26 2023 - 1/26/2023 3:43:54 PM

High winds have made it difficult to venture offshore these past couple weeks but when its been possible the bite has been great!! Red grouper (View)

The Roller Coaster December 6 2022 - 12/6/2022 4:40:00 PM

Great one day OK the next that's how it's been the week.  Today I had Peter for a 6 hour trip for an all around mixed bag of fishing.  We start (View)

Black Grouper 9930 - 10/4/2022 10:28:13 PM


Black Grouper 9903 - 10/4/2022 10:28:11 PM


Black Grouper 9369 - 10/4/2022 10:27:56 PM


Black Grouper 9283 - 10/4/2022 10:27:53 PM


Black Grouper 9261 - 10/4/2022 10:27:52 PM


Black Grouper 9145 - 10/4/2022 10:27:48 PM