Dusky grouper
| Dusky grouper | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Serranidae |
| Genus: | Epinephelus |
| Species: | E. marginatus |
| Binomial name | |
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Epinephelus marginatus (Lowe, 1834) |
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| Synonyms | |
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Epinephelus guaza (Jordan & Evermann, 1896) |
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Epinephelus guaza (Jordan & Evermann, 1896)
Epinephelus marginatus (dusky grouper, merou) is the best known grouper of the Mediterranean Sea and North Africa coast.
The dusky grouper has a big body with a big mouth. One long dorsal fin and a rounded tail. Its color varies from brown to green depending on the season and the age. It is green during its juvenile phase. The adult is upper brown with yellow spots and lower yellow. On the operculum there are three spines.
The dusky grouper is a solitary fish. It likes to live alone in rocks, at depths from the coast to 300 meters, but it's rare to find it below 60 meters. It has a barometric distribution, where the younger specimens are found near the coast and the older ones at the depths.
It normally has one cave considered as home and several other caves as temporary refuges. Its home has a minimum of two exits, and a size slightly bigger than the grouper, so no bigger animal can enter in. In case of biting attack or other force to extract it, the grouper opens its mouth, and the operculum spines wedge it inside the cave.
It can be found in the Mediterranean, the African west coast (Azores, Canary Islands) and the coast of Brazil. It is rare in the waters of the western Indian Ocean, Uruguay, Argentina, north of France and the British Isles.
It is a protogynous hermaphrodite, i.e. the young are predominantly female but transform into males as they grow larger. Reproduction normally takes place between the summer months.
It feeds mainly on other fish, crabs and octopus. It is very greedy and one of the major predators in the Mediterranean sea.
In some countries the dusky grouper is considered a delicacy. Referring to its preference among restaurant guests, the Spanish say 'De la mar el mero y de la tierra el carnero' (From the sea the dusky grouper, from the land the lamb).
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Wikipedia