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Black gouper (Mycteroperca bonaci) — Serranidae

Black gouper

Mycteroperca bonaci
Family: Serranidae
NT · Near Threatened

The Black gouper (Mycteroperca bonaci) is a saltwater fish of the family Serranidae that grows up to 150 cm.

Length
150 cm
Water
Saltwater
Depth
60–250 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Poisonous flesh
Range
Western Atlantic; rocky and coral reefs.
Edibility
Commonly eaten

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Description

The black grouper is a large grouper (Epinephelidae) from the western Atlantic Ocean. The species has a robust, olive-grey body with dark, rectangular blotches and grows to over a metre. It is a solitary inhabitant of rocky and coral reefs. As an ambush hunter it feeds mainly on fishes and crustaceans. It is a protogynous hermaphrodite and a valued food fish; owing to fishing pressure it is considered near threatened. Large specimens may carry ciguatera, but the living fish is harmless to humans.

Frequently asked questions

How do you recognise the Black gouper?

The Black gouper has a torpedo-shaped body, is mainly silver-grey and shows a spots pattern. Large reef ambush predator with rectangular blotches; protogynous hermaphrodite, sensitive to fishing. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas.

Where does the Black gouper live?

The Black gouper lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Atlantic; rocky and coral reefs.

How big does the Black gouper get?

The Black gouper grows to a maximum of about 150 cm. On average the species is around 70 cm.

Is the Black gouper dangerous to humans?

The flesh of the Black gouper is poisonous, so don't eat it. It has no venomous spines. The flesh of this grouper, especially of large specimens, can contain ciguatera, an algal toxin that builds up through the food chain and is not destroyed by cooking. In tropical risk areas, do not eat large specimens. If you get tingling, vomiting or diarrhoea after eating it, see a doctor.

Is the Black gouper edible?

Yes, the Black gouper is commonly eaten.

More photos

Black gouper (Mycteroperca bonaci) — Serranidae — 2
shmavin (CC BY-NC 4.0) via GBIF — iNaturalist
Black gouper (Mycteroperca bonaci) — Serranidae — 3
Kalel Sandoval (CC BY-NC 4.0) via GBIF — iNaturalist
Black gouper (Mycteroperca bonaci) — Serranidae — 4
iNaturalist ((c) Derek Garvey, some rights reserved (CC BY-NC))
Black gouper (Mycteroperca bonaci) — Serranidae — 5
Wikimedia Commons — Rzpguimaraes (CC BY-SA 3.0)

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All data

Identification

English name
Black gouper verified
Scientific name
Mycteroperca bonaci
Family
Serranidae
Other names
Black grouper; Black rockfish; Marbled rockfish; Rockfish; Bonaeci arara verified

Appearance

Size class
Extra large verified
Max length (cm)
150 verified
Average length (cm)
70 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey
Pattern
Spots
Tail shape
Straight
Mouth position
Terminal
Lips
Thick / fleshy
Barbels
No sourced
Dorsal fins
One continuous
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
60 verified
Max depth (m)
250 verified
Natural range
Western Atlantic; rocky and coral reefs.
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Mainly fishes and crustaceans sourced
Social behaviour
Solitary
Territorial
No
Reproduction
Protogynous (female first) sourced
Sexual dimorphism
No
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Large reef ambush predator with rectangular blotches; protogynous hermaphrodite, sensitive to fishing. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas. verified

For anglers

Edibility
Commonly eaten sourced
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures.
Regulations source

Safety

Danger to humans
Poisonous flesh sourced
First aid
The flesh of this grouper, especially of large specimens, can contain ciguatera, an algal toxin that builds up through the food chain and is not destroyed by cooking. In tropical risk areas, do not eat large specimens. If you get tingling, vomiting or diarrhoea after eating it, see a doctor. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Mycteroperca

More from the family Serranidae

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