Red grouper

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Red grouper
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Serranidae
Subfamily: Epinephelinae
Genus: Epinephelus
Species:
E. morio
Binomial name
Epinephelus morio
(Valenciennes, 1828)
Synonyms[2]
  • Serranus morio Valenciennes, 1828
  • Serranus erythrogaster DeKay, 1842
  • Serranus luridus Ranzani, 1842
  • Serranus remotus Poey, 1860
  • Serranus angustifrons Steindachner, 1864

The red grouper (Epinephelus morio) is a species of marine

Epinephelinae which is part of the family Serranidae, which also includes the anthias
and sea basses. It is found in the western Atlantic Ocean.

Description

The red grouper has a body with a

caudal fin is truncate. The[4] They are dark reddish brown on the upper part of the head and body, shading to paler pink on the underparts, they are marked with lighter spots and blotches across their body and there are darker margins to the fins.[5] This species has a maximum published total length of 125 centimetres (49 in), although they a more commonly found at lengths around 50 centimetres (20 in), and a maximum published weight of 23 kilograms (51 lb).[2]

Distribution

The red grouper's typical range is coastal areas in the western Atlantic, stretching from southern Brazil to North Carolina in the US and including the Gulf of Mexico and Bermuda.[2]

Habitat and biology

The red grouper is a demersal, largely sedentary species which has an extended (~40 day) pelagic larval stage before it settles in shallow coastal hardbottom habitat as juveniles. They remain in inshore waters for 4–5 years before migrating to offshore hardbottom habitat—particularly on the edge of the continental self—as adults. Spawning occurs offshore between January and June, peaking in May. While primarily eating benthic invertebrates, the red grouper is an opportunistic feeder in the reef community. The diet commonly includes xanthid and portunid crabs, juvenile spiny lobster, and snapping shrimp, with the occasional fish. The red grouper is of moderate size, about 125 cm and weighs 23 kg or more. Body coloration is typically reddish-brown in color often, with many white spots. When aggravated (they are highly territorial) or involved in spawning activities, these fish can very rapidly change coloration patterns, with the head or other parts of the body turning completely white, and the white spots appearing more intense.

Red grouper (Epinephelus morio) on an excavated site on Pulley Ridges on the West Florida Shelf

Habitat engineers of the sea

Red grouper actively excavate pits in the seafloor. They start digging in the sediment from the time they settle out of the plankton and continue throughout their lifetime. They use their caudal fin and their mouths to remove debris and sediment from rocks, creating exposed surfaces on which sessile organisms actively settle (e.g., sponges, soft corals, algae). The exposure of structure also attracts a myriad of other species, including mobile invertebrates and a remarkable diversity of other fishes, from gobies and butterflyfish to grunts and snapper. The

lionfish Pterois volitans started invading red grouper habitat by 2008, from Florida Bay to the Florida Keys and offshore to Pulley Ridge, a mesophotic coral reef
on the West Florida Shelf west of the Dry Tortugas. Known for being extremely capable predators on small reef fish, scientists are very interested in determining the extent to which their invasion changes the functional dynamics of associated communities.

Parasites

As other fish, red groupers harbour a number of

gills, the monogeneans Pseudorhabdosynochus justinella and Pseudorhabdosynochus yucatanensis
.

Taxonomy

The red grouper was first formally

zoologist Achille Valenciennes (1794-1865),[7] with the type locality given as the fish market in New York, the fish being "probably caught south of there".[3]

Utilisation

The red grouper is a commercially important species for fisheries throughout its range and it is also an valuable resource for recreational fisheries too.[4]

Red grouper caught off Key West in the Florida Keys.

References

  1. doi:10.2305/IUCN.UK.2018-2.RLTS.T44681A46914636.en
    . Retrieved 15 November 2021.
  2. ^ a b c d Froese, Rainer; Pauly, Daniel (eds.) (2019). "Epiphenelus morio" in FishBase. December 2019 version.
  3. ^
    ISBN 92-5-103125-8
    .
  4. ^ a b c "Epinephelus morio Valenciennes, 1828". Indian River Lagoon Species Inventory. Smithsonian Marine Station at Fort Pierce. Retrieved 11 July 2020.
  5. ^ "Epinephelus morio". Discover Fishes. Florida Museum. 12 May 2017. Retrieved 11 July 2020.
  6. PMID 9437838. Open access icon
  7. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Serranus morio". Catalog of Fishes. California Academy of Sciences. Retrieved 11 July 2020.

External links

Wikimedia Commons has media related to Epinephelus morio.
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