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Masked grouper (Gracila albomarginata) — Serranidae

Masked grouper

Gracila albomarginata
Family: Serranidae

The Masked grouper (Gracila albomarginata) is a saltwater fish of the family Serranidae that grows up to 40 cm.

Length
40 cm
Water
Saltwater
Depth
0–120 m
Diet
Carnivore
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Oceania: Australia, Solomon Is., China, Taiwan/Ch Taipei, Christmas I., Cocos Is. (Keel) and others
Edibility
Commonly eaten

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Description

The masked grouper is a grouper (Epinephelidae) from the Indo-Pacific. The species grows to about 40 cm and has a slender, grey-brown body with a pale, mask-like pattern on the head and white-edged fins. As a bottom-oriented predator it hovers above steep coral reef slopes and seizes small fish and crustaceans. Many groupers change sex. It is a food fish. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Masked grouper?

The Masked grouper has a torpedo-shaped body and is mainly brown.

Where does the Masked grouper live?

The Masked grouper lives in the sea (marine waters) and is mostly found around stony or rocky ground. Oceania: Australia, Solomon Is., China, Taiwan/Ch Taipei, Christmas I., Cocos Is. (Keel) and others

How big does the Masked grouper get?

The Masked grouper grows to a maximum of about 40 cm.

Is the Masked grouper dangerous to humans?

No, the Masked grouper is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Masked grouper edible?

Yes, the Masked grouper is commonly eaten.

More photos

Masked grouper (Gracila albomarginata) — Serranidae — 2
iNaturalist ((c) Mark Rosenstein, some rights reserved (CC BY-NC))
Masked grouper (Gracila albomarginata) — Serranidae — 3
Wikimedia Commons — NOAA Photo Library (CC BY 2.0)
Masked grouper (Gracila albomarginata) — Serranidae — 4
iNaturalist ((c) sp1_der, some rights reserved (CC BY-NC))
Masked grouper (Gracila albomarginata) — Serranidae — 5
iNaturalist ((c) Mark Rosenstein, some rights reserved (CC BY-NC))

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All data

Identification

English name
Masked grouper sourced
Scientific name
Gracila albomarginata
Family
Serranidae
Other names
Grouper; Masked grouper; Rededged cod; White-margined grouper; Slenderspine grouper; Red-edged grouper; Red-edged rockcod; White-square cod; Chestnut grouper; Thinspine grouper; Thinspine rockcod verified

Appearance

Size class
Medium verified
Max length (cm)
40 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown sourced
Tail shape
Straight

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0 verified
Max depth (m)
120 verified
Natural range
Oceania: Australia, Solomon Is., China, Taiwan/Ch Taipei, Christmas I., Cocos Is. (Keel) and others sourced
Origin
Native

Behaviour & biology

Diet
Carnivore
Diet (detail)
Small fishes, crustaceans and invertebrates
Territorial
No
Reproduction
Protogynous (female first) sourced
Sexual dimorphism
No
Seasonality
Present year-round in its habitat; no pronounced seasonality known.

For anglers

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

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

More from the family Serranidae

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