Sealife guideThe dusky grouperEpinephelus marginatus

There are several species of groupers found around the world, including the dusky grouper, the big star of the French Mediterranean coast and more generally of the Mediterranean.
Taxonomy
  • Common name: Dusky grouper
  • French name: Mérou brun
  • Spanish name: Mero nebuloso
  • Scientific name: Epinephelus marginatus (Lowe, 1834)
  • Family name: Epinephelidae
  • Order name: Perciformes
  • Class name: Actinopterygii
Description
The dusky grouper measures around 3 feet and can reach up to 5 feet in length.
The dusky grouper has a brownish coloration either solid or mottled with yellow spots depending on the individual
The dusky grouper has a brownish coloration either solid or mottled with yellow spots depending on the individual
Oval in shape, the grouper has a long dorsal fin and is characterized by a mouth surrounded by thick lips.
The dusky grouper has a brownish coloration either solid or mottled with yellow spots depending on the individual.
Range
The dusky grouper is found in the Mediterranean Sea and the Atlantic Ocean, ranging from South Africa to Portugal.
Habitat
The dusky grouper is a sedentary fish that lives close to the seabed, sheltering in rocky crevices or under rocky overhangs.
Its territory typically includes several shelters with one of them being regularly frequented.
The dusky grouper can be found at depths ranging from 16 to 33 feet down to approximately 656 feet.
Diet
The dusky grouper primarily feeds on fish, crustaceans and octopuses.
Reproduction
The dusky grouper has the unique ability to change sex once in its lifetime. It starts as a female at a young age and becomes a male around 10 to 15 years old.
Did you know ?
The dusky grouper can live up to 50 years.
Despite its bulky appearance, it is capable of rapid acceleration to catch its prey.
Fishing with hooks and spearfishing for the dusky grouper (Epinephelus marginatus) are banned along the entire mainland Mediterranean coast. This moratorium on grouper fishing was extended by a prefectural decree on 12/17/2007 until 2013.
Tips for observing
The dusky grouper is not very shy and can be easily approached as long as no sudden movements are made.
Encounter with a dusky grouper
Encounter with a dusky grouper
The video gallery

A dusky grouper (Epinephelus marginatus) waits under the shelter of a rocky overhang

Within the same genus
Starry grouper (Epinephelus labriformis)
Starry grouper
(Epinephelus labriformis)
Atlantic Goliath Grouper (Epinephelus itajara)
Atlantic Goliath Grouper
(Epinephelus itajara)
Greasy grouper (Epinephelus tauvina)
Greasy grouper
(Epinephelus tauvina)
Malabar grouper (Epinephelus malabaricus)
Malabar grouper
(Epinephelus malabaricus)
Brown-marbled grouper (Epinephelus fuscoguttatus)
Brown-marbled grouper
(Epinephelus fuscoguttatus)
Blacktip grouper (Epinephelus fasciatus)
Blacktip grouper
(Epinephelus fasciatus)
Nassau grouper (Epinephelus striatus)
Nassau grouper
(Epinephelus striatus)
Red grouper (Epinephelus morio)
Red grouper
(Epinephelus morio)
Within the same family
Gag grouper (Mycteroperca microlepis)
Gag grouper
(Mycteroperca microlepis)
Pacific creolefish (Cephalopholis colonus)
Pacific creolefish
(Cephalopholis colonus)
Coney (Cephalopholis fulva)
Coney
(Cephalopholis fulva)
Roving coral grouper (Plectropomus pessuliferus)
Roving coral grouper
(Plectropomus pessuliferus)
Tomato grouper (Cephalopholis sonnerati)
Tomato grouper
(Cephalopholis sonnerati)
Darkfin hind (Cephalopholis urodeta)
Darkfin hind
(Cephalopholis urodeta)
Halfspotted grouper (Cephalopholis hemistiktos)
Halfspotted grouper
(Cephalopholis hemistiktos)
Graysby (Cephalopholis cruentata)
Graysby
(Cephalopholis cruentata)
Explore also
Springer's damselfish (Chrysiptera springeri)
Springer's damselfish
(Chrysiptera springeri)
Neon damselfish (Pomacentrus coelestis)
Neon damselfish
(Pomacentrus coelestis)
Pale damselfish (Amblyglyphidodon indicus)
Pale damselfish
(Amblyglyphidodon indicus)
Twinspot signal goby (Signigobius biocellatus)
Twinspot signal goby
(Signigobius biocellatus)
Blackeye goby (Rhinogobiops nicholsii)
Blackeye goby
(Rhinogobiops nicholsii)
Palette surgeonfish (Paracanthurus hepatus)
Palette surgeonfish
(Paracanthurus hepatus)
Striped surgeonfish (Acanthurus lineatus)
Striped surgeonfish
(Acanthurus lineatus)
Bump-head sunfish (Mola alexandrini)
Bump-head sunfish
(Mola alexandrini)
The marine species from Mediterranean sea
Black scorpionfish (Scorpaena porcus)
Black scorpionfish
(Scorpaena porcus)
Blue spiny starfish (Coscinasterias tenuispina)
Blue spiny starfish
(Coscinasterias tenuispina)
Compass jellyfish (Chrysaora hysoscella)
Compass jellyfish
(Chrysaora hysoscella)
Marine peacock's tail (Padina pavonica)
Marine peacock's tail
(Padina pavonica)
Mediterranean rainbow wrasse (Coris julis)
Mediterranean rainbow wrasse
(Coris julis)
Spinous squat lobster (Galathea strigosa)
Spinous squat lobster
(Galathea strigosa)
Stony sea urchin (Paracentrotus lividus)
Stony sea urchin
(Paracentrotus lividus)
White seabream (Diplodus sargus)
White seabream
(Diplodus sargus)

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