Sealife guideThe dusky grouperEpinephelus marginatus

Last updated on 08/21/2024 at 10:43 PM
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.
Geographic 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
Atlantic Goliath Grouper (Epinephelus itajara)
Atlantic Goliath Grouper
(Epinephelus itajara)
Brown-marbled grouper (Epinephelus fuscoguttatus)
Brown-marbled grouper
(Epinephelus fuscoguttatus)
Giant grouper (Epinephelus lanceolatus)
Giant grouper
(Epinephelus lanceolatus)
Greasy grouper (Epinephelus tauvina)
Greasy grouper
(Epinephelus tauvina)
Potato grouper (Epinephelus tukula)
Potato grouper
(Epinephelus tukula)
Red hind grouper (Epinephelus guttatus)
Red hind grouper
(Epinephelus guttatus)
Speckledfin grouper (Epinephelus ongus)
Speckledfin grouper
(Epinephelus ongus)
Starry grouper (Epinephelus labriformis)
Starry grouper
(Epinephelus labriformis)
Within the same family
Atlantic creolefish (Paranthias furcifer)
Atlantic creolefish
(Paranthias furcifer)
Bluespotted grouper (Cephalopholis cyanostigma)
Bluespotted grouper
(Cephalopholis cyanostigma)
Coral grouper (Cephalopholis miniata)
Coral grouper
(Cephalopholis miniata)
Darkfin hind (Cephalopholis urodeta)
Darkfin hind
(Cephalopholis urodeta)
Gag grouper (Mycteroperca microlepis)
Gag grouper
(Mycteroperca microlepis)
Graysby (Cephalopholis cruentata)
Graysby
(Cephalopholis cruentata)
Peacock grouper (Cephalopholis argus)
Peacock grouper
(Cephalopholis argus)
Redmouth grouper (Aethaloperca rogaa)
Redmouth grouper
(Aethaloperca rogaa)
Discover also
California sheephead (Bodianus pulcher)
California sheephead
(Bodianus pulcher)
Half and half wrasse (Hemigymnus melapterus)
Half and half wrasse
(Hemigymnus melapterus)
Redmargin shrimpgoby (Amblyeleotris rubrimarginata)
Redmargin shrimpgoby
(Amblyeleotris rubrimarginata)
Ringneck blenny (Parablennius pilicornis)
Ringneck blenny
(Parablennius pilicornis)
Saucereye porgy (Calamus calamus)
Saucereye porgy
(Calamus calamus)
Yellowfin surgeonfish (Acanthurus xanthopterus)
Yellowfin surgeonfish
(Acanthurus xanthopterus)
Yellowmouth moray (Gymnothorax nudivomer)
Yellowmouth moray
(Gymnothorax nudivomer)
Yellowtail wrasse (Anampses meleagrides)
Yellowtail wrasse
(Anampses meleagrides)
The marine species from Mediterranean sea
Forkbeard (Phycis phycis)
Forkbeard
(Phycis phycis)
Light bulb sea squirt (Clavelina lepadiformis)
Light bulb sea squirt
(Clavelina lepadiformis)
Ocellate torpedo (Torpedo torpedo)
Ocellate torpedo
(Torpedo torpedo)
Painted comber (Serranus scriba)
Painted comber
(Serranus scriba)
Red starfish (Echinaster sepositus)
Red starfish
(Echinaster sepositus)
Smooth starfish (Hacelia attenuata)
Smooth starfish
(Hacelia attenuata)
Tompot blenny (Parablennius gattorugine)
Tompot blenny
(Parablennius gattorugine)
Violet sea urchin (Sphaerechinus granularis)
Violet sea urchin
(Sphaerechinus granularis)

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