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Edgeblack grouper (Epinephelus summana) — Serranidae

Edgeblack grouper

Epinephelus summana
Family: Serranidae
LC · Least Concern

The Edgeblack grouper (Epinephelus summana) is a brackish-water fish of the family Serranidae that grows up to 52 cm.

Length
52 cm
Water
Brackish
Depth
1.0–30.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Red Sea and western Indian Ocean; shallow coral reefs and lagoons.
Edibility
Commonly eaten

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Description

The summan grouper is a grouper of the family Serranidae from the Red Sea and the western Indian Ocean. The species grows to about 50 cm and has a dark-brown body studded with numerous small, whitish spots. It inhabits shallow, protected coral reefs and lagoons, also in brackish-water environments, where it shelters among coral and in crevices. As an ambush hunter it catches fishes and crustaceans. Little has been published on its biology. It is a food fish and is harmless to humans.

Frequently asked questions

How do you recognise the Edgeblack grouper?

The Edgeblack grouper has a torpedo-shaped body, is mainly brown and shows a spots pattern. Dark brown with numerous small whitish blotches; protogynous hermaphrodite of the Red Sea.

Where does the Edgeblack grouper live?

The Edgeblack grouper lives in brackish water and is mostly found around stony or rocky ground. Red Sea and western Indian Ocean; shallow coral reefs and lagoons.

How big does the Edgeblack grouper get?

The Edgeblack grouper grows to a maximum of about 52 cm. On average the species is around 40 cm.

Is the Edgeblack grouper dangerous to humans?

No, the Edgeblack grouper is harmless to humans. None required: this species is harmless to humans.

Is the Edgeblack grouper edible?

Yes, the Edgeblack grouper is commonly eaten.

More photos

Edgeblack grouper (Epinephelus summana) — Serranidae — 2
iNaturalist ((c) David R. Pugh, some rights reserved (CC BY-NC))
Edgeblack grouper (Epinephelus summana) — Serranidae — 3
iNaturalist ((c) afropavo, some rights reserved (CC BY-NC))
Edgeblack grouper (Epinephelus summana) — Serranidae — 4
iNaturalist ((c) emajorova, some rights reserved (CC BY-NC))
Edgeblack grouper (Epinephelus summana) — Serranidae — 5
Wikimedia Commons — Hatem Moushir (CC BY-SA 4.0)
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All data

Identification

English name
Edgeblack grouper verified
Scientific name
Epinephelus summana
Family
Serranidae
Other names
Grouper; Suman grouper; Summan grouper verified

Appearance

Size class
Large verified
Max length (cm)
52.0 verified
Average length (cm)
40.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
30.0 verified
Natural range
Red Sea and western Indian Ocean; shallow coral reefs and lagoons. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Fishes and crustaceans sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Protogynous (female first) sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Dark brown with numerous small whitish blotches; protogynous hermaphrodite of the Red Sea. sourced

For anglers

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

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Epinephelus

More from the family Serranidae

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