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Grouper (Aethaloperca rogaa) — Serranidae

Grouper

Aethaloperca rogaa
Family: Serranidae
LC · Least Concern

The Grouper (Aethaloperca rogaa) is a saltwater fish of the family Serranidae that grows up to 60 cm.

Length
60 cm
Water
Saltwater
Depth
3.0–60.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Indo-West Pacific, from the Red Sea to the western Pacific.
Edibility
Rarely eaten

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Description

The redmouth grouper is a grouper (Serranidae) from the Indo-West Pacific, from the Red Sea to the western Pacific. The species reaches about 60 cm and has a deep, dark-grey to black body with a conspicuous red-orange mouth cavity. It inhabits coastal reefs and lagoons, often on silty sites, in or near caves and holes in the reef. The diet consists mainly of small fishes, supplemented with mantis shrimps and other crustaceans. Like many groupers the species is a protogynous hermaphrodite, beginning as a female and later able to change into a male.

Frequently asked questions

How do you recognise the Grouper?

The Grouper has a flattened, disc-shaped body, is mainly black and shows a plain pattern. Dark body with a striking red-orange mouth cavity; shelters in caves; protogynous hermaphrodite.

Where does the Grouper live?

The Grouper lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-West Pacific, from the Red Sea to the western Pacific.

How big does the Grouper get?

The Grouper grows to a maximum of about 60 cm. On average the species is around 35 cm.

Is the Grouper dangerous to humans?

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

Is the Grouper edible?

The Grouper is rarely eaten.

More photos

Grouper (Aethaloperca rogaa) — Serranidae — 2
Wikimedia Commons — Diego Delso (CC BY-SA 4.0)
Grouper (Aethaloperca rogaa) — Serranidae — 3
Wikimedia Commons — Rickard Zerpe (CC BY 2.0)
Grouper (Aethaloperca rogaa) — Serranidae — 4
iNaturalist ((c) Marleen Schouten, some rights reserved (CC BY-NC))
Grouper (Aethaloperca rogaa) — Serranidae — 5
iNaturalist ((c) Mark Rosenstein, some rights reserved (CC BY-NC))
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All data

Identification

English name
Grouper verified
Scientific name
Aethaloperca rogaa
Family
Serranidae
Other names
Red-flushed cod; Red-flushed rockcod; Red-flushed rock-cod; Redmouth grouper; Redmouth rockcod; Redmouth groper; Rockcod verified

Appearance

Size class
Large verified
Max length (cm)
60.0 verified
Average length (cm)
35.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Black inferred
Pattern
Plain inferred
Tail shape
Straight 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
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
3.0 verified
Max depth (m)
60.0 verified
Natural range
Indo-West Pacific, from the Red Sea to the western Pacific. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small 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 body with a striking red-orange mouth cavity; shelters in caves; protogynous hermaphrodite. sourced

For anglers

Edibility
Rarely 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

More from the family Serranidae

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