Comet grouper

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Comet grouper
HokiHTyg.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Serranidae
Subfamily: Epinephelinae
Genus: Epinephelus
Species:
E. morrhua
Binomial name
Epinephelus morrhua
Synonyms [2]
  • Serranus morrhuaValenciennes, 1833
  • Cephalopholis morrhua(Valenciennes, 1833)
  • Epinephelus cometae Tanaka, 1927

The comet grouper (Epinephelus morrhua), also known as the comet cod or dot-dash grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is a species of deep coral reefs in the Indo-Pacific region.

Contents

Description

The comet grouper has a body with a standard length which is 2.8 to 3.1 times as long as it is deep. The dorsal profile of the head is moderately convex. The preopercle has enlarged serrations at its angle and it is notched just above the angle. The upper edge of the gill cover is straight. [3] The dorsal fin contains 11 spines and 14-15 soft rays, while the anal fin has 3 spines and 7-8 soft rays. [2] The caudal fin varies from convex to slightly rounded. [3] The head and body tan and they are marked with dark brown bands. There is a forked band starting at the posterior margin of the eye, its upper branch reaching a dark brown saddle-like blotch on the nape just in before of origin of the dorsal fin while the lower branch runs to lowest of the spines on the gill cover before continuing along the flanks and then forking over the pectoral fin. The upper part of this band runs to a dark blotch at the base of the soft rayed part of the dorsal fin. Another dark band runs from the upper margin of the gill cover to the base of spiny part of the dorsal fin. There is also a narrow band which runs from the lower margin of the orbit to the base of the pectoral fin and then continues as a broken line along the lower part of body curving upwards on to the upper part of caudal peduncle. There is another wide band from maxillary groove to rear end of interopercle. The areas between these bands are frequently marked with small brown spots. This species attains a maximum published total length of 90 centimetres (35 in), although they a more commonly found at lengths around 60 centimetres (24 in), and a maximum published weight of 6.7 kilograms (15 lb). [2]

Distribution

The comet grouper has a wide Indo-Pacific distribution and is found from the Red Sea southwards along the African coast to South Africa and east through the Indian Ocean, including the Comoros, Madagascar, Aldabra, Mauritius, Chagos and Réunion, and on into the Pacific. In the Western Pacific Ocean it extends as far north as southern Japan and the Ogasawara Islands and as far south as New South Wales in Australia. It recahes New Caledonia, Fiji, Rotuma and the Cook Islands. [3]

Habitat and biology

The comet grouper is found near coral reefs on slopes off islands, of sea mounts or the continental shelf [2] at depths from 80 to 370 m (260 to 1,210 ft) [3] where it feeds on benthic fish and large invertebrates. [2] Its biology is poorly understood. [1] This species harbours several parasite species, including the diplectanid monogeneans Pseudorhabdosynochus morrhua and P. variabilis . [4]

Taxonomy

The comet grouper was first formally described as Serranus morhua in 1828 by the French zoologist Achille Valenciennes (1794-1865) with the type locality given as Mauritius. [5] It is sometimes confused with its relatives E. poecilonotus , E. radiatus , and E. tuamotoensis . [4]

Utilisation

The comet grouper is not a common fish at market, despite being regarded as an excellent food fish, probably due to the depths at which it is found. [3] Ciguatoxins have been found in fish caughht off Mauritius. [4]

Related Research Articles

<i>Epinephelus</i> Genus of fishes

Epinephelus is a genus of marine ray-finned fish, groupers from the subfamily Epinephelinae, part of the family Serranidae, which also includes the anthias and sea basses. They are predatory fish, largely associated with reefs and are found in tropical and subtropical seas throughout the world. They are important target species for fisheries.

<span class="mw-page-title-main">Brownspotted grouper</span> Species of fish

The brownspotted grouper, also known as the brown spotted reef cod, brown-spotted rockcod, coral grouper or honeycomb cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It has an Indo-Pacific distribution but in the northern Indian Ocean this distribution is discontinuous. It forms part of a species complex with two closely related species in the genus Epinephelus.

<span class="mw-page-title-main">Hong Kong grouper</span> Species of fish

The Hong Kong grouper is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in eastern and southeastern Asian waters of the Western Pacific Ocean. Its natural habitats are shallow seas and coral reefs.

<span class="mw-page-title-main">Yellow grouper</span> Species of fish

The yellow grouper, also known as the banded grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in eastern Asian waters of the Western Pacific Ocean. Its natural habitats are shallow seas and rocky reefs.

<span class="mw-page-title-main">Red grouper</span> Species of fish

The red grouper is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the western Atlantic Ocean.

<span class="mw-page-title-main">Camouflage grouper</span> Species of fish

The camouflage grouper, also known as the blue-tailed cod, camouflage rockcod, small-toothed rockcod, smooth flowery rock-cod, snout-spot grouper or snout-spot rock-cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It has a wide Indo-Pacific distribution where it is associated with reefs.

<span class="mw-page-title-main">Pacific goliath grouper</span> Species of fish

The Pacific goliath grouper, also known as the Pacific itajara grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It found in the eastern Pacific Ocean where it is associated with reefs. It is related to the Atlantic goliath grouper.

<i>Epinephelus flavocaeruleus</i> Species of fish

Epinephelus flavocaeruleus, commonly called blue-and-yellow grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is associated with reefs in the Indian Ocean.

<span class="mw-page-title-main">Longfin grouper</span> Species of fish

The longfin grouper, also known as the longfin rockcod, bar-breasted rock-cod, Gilbert's rock-cod, honeycomb rockcod, spotted groper or wirenet cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Western Pacific Ocean.

<i>Epinephelus spilotoceps</i> Species of fish

Epinephelus spilotoceps, the foursaddle grouper or spotty cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Indo-Pacific region.

<i>Epinephelus labriformis</i> Species of fish

Epinephelus labriformis, commonly called starry grouper or flag cabrilla is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the eastern Pacific Occean.

<i>Epinephelus epistictus</i> Species of fish

Epinephelus epistictus, the dotted grouper, black-dotted rock-cod, black-spotted grouper, broken-line grouper or spottedback grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. This species is found in the Indo-Pacific where its distribution ranges form the Red Sea to Australia and Japan. The dotted grouper may grow up to 70–80 cm length. It is a demersal fish found at 70–300 m depths.

<i>Epinephelus corallicola</i> Species of fish

Epinephelus corallicola, also known as the black-dotted cod, coral cod, coral rockcod or duskyfin grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It has an Indo-Pacific distribution and is found in marine and brackish waters.

<i>Epinephelus erythrurus</i> Species of fish

Epinephelus erythrurus, the cloudy grouper, also known as the cloudy rock cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in marine and brackish waters in the Indo-Pacific region.

<i>Epinephelus faveatus</i> Species of fish

Epinephelus faveatus, the barrel-chested grouper, also known as the Indian grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is associated with reefs in the Indian Ocean.

Epinephelus heniochus, the bridled grouper or threeline rockcod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is native to the tropical western Pacific Ocean.

<i>Epinephelus latifasciatus</i> Species of fish

Epinephelus latifasciatus, the striped grouper, banded grouper or spotfin rockcod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Indo-Pacific region.

<i>Epinephelus sexfasciatus</i> Species of fish

Epinephelus sexfasciatus, the sixbar grouper, sixbar rockcod or six-banded rockcod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Indo-Pacific region.

<i>Epinephelus bleekeri</i> Species of fish

Epinephelus bleekeri, the duskytail grouper, Bleeker's grouper or Bleeker's rockcod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Indo-Pacific region where it is associated with shallow banks.

<i>Epinephelus rivulatus</i> Species of fish

Epinephelus rivulatus, the halfmoon grouper, halfmoon rockcod, Chinaman rockcod, Charlie court cod, green-finned rock cod, or white-dotted grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Indo-Pacific region.

References

  1. 1 2 Barreiros, J. (2018). "Epinephelus morrhua". IUCN Red List of Threatened Species . 2018: e.T132745A100552494. doi: 10.2305/IUCN.UK.2018-2.RLTS.T132745A100552494.en . Retrieved 19 November 2021.
  2. 1 2 3 4 5 Froese, Rainer; Pauly, Daniel (eds.) (2019). "Epinephelus morhua" in FishBase. December 2019 version.
  3. 1 2 3 4 5 Heemstra, P.C. & J.E. Randall (1993). FAO Species Catalogue. Vol. 16. Groupers of the world (family Serranidae, subfamily Epinephelinae). An annotated and illustrated catalogue of the grouper, rockcod, hind, coral grouper and lyretail species known to date (PDF). FAO Fish. Synopsis. Vol. 125. FAO, Rome. pp. 196–198. ISBN   92-5-103125-8.
  4. 1 2 3 Bailly, Nicolas (2008). Bailly N (ed.). "Epinephelus morrhua (Valenciennes, 1833)". FishBase . World Register of Marine Species . Retrieved 12 July 2020.
  5. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Serranus morhua". Catalog of Fishes . California Academy of Sciences . Retrieved 12 July 2020.
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