Plectorhinchus gibbosus

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Plectorhinchus gibbosus
Plectorhinchus gibbosus Landaagiraavaru.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Haemulidae
Genus: Plectorhinchus
Species:
P. gibbosus
Binomial name
Plectorhinchus gibbosus
(Lacepède, 1802)
Synonyms [2]
  • Holocentrus gibbosusLacépède, 1802
  • Pristipoma nigrum Cuvier, 1830
  • Gaterin niger(Cuvier, 1830)
  • Plectorhinchus nigrus(Cuvier, 1830)
  • Pseudopristipoma nigra(Cuvier, 1830)
  • Pseudopristipoma nigrum(Cuvier, 1830)
  • Pseudopristipoma nigrus(Cuvier, 1830)
  • Diagramma crassispinum Rüppell, 1838
  • Plectorhynchus crassispinus(Rüppell, 1838)
  • Diagramma gibbosusHombron & Jacquinot, 1853
  • Plectorhinchus gibbosus(Hombron & Jacquinot, 1853)

Plectorhinchus gibbosus, commonly known as the Harry hotlips, black sweetlips, brown sweetlips, dusky sweetlips, gibbous sweetlips, hairy hotlips or humpback sweetlips, is a species of marine ray-finned fish, a sweetlips belonging to the subfamily Plectorhinchinae, one of two subfamilies in the family Haemulidae, the grunts. It is native to the Western Pacific and Indian Oceans.

Contents

Description

Plectorhinchus gibbosus has fleshy lips which become grossly swollen with age, it has 6 pores on its chin but has no median pit. [3] The dorsal fin contains 14 spines and 15–16 soft rays while the anal fin has 3 spines and 7–8 soft rays. [2] The overall colour is silvery-grey to brownish with dark edges to the scales, a dusky face, a thin dark bar on the anterior of the operculum which has a black rear margin. The soft rayed part of the dorsal fin, anal fin and caudal fin are dusky. [4] The juveniles are brownish in colour with a pink or transparent caudal fin [3] and mimic fallen leaves by drifting with the body oriented with their sides parallel to the surface. [4] This species attains a maximum total length of 75 cm (30 in). [2]

Distribution

Plectorhinchus gibbosus has a wide Indo-Pacific distribution. It is found along the eastern coast of Africa from Kenya to South Africa and along the southern coast of Asia into the Pacific as far east as Polynesia, [1] north as far as the Ryukyu Islands of southern Japan and south to Australia. [2] In Australia its range extends from the Ningaloo Reef in Western Australia along the northern coasts and south on the eastern coast as far as Flinders Island in Tasmania, as well as Lord Howe Island and Norfolk Island in the Tasman Sea. [4] It is also found off the Indian Ocean islands of Socotra, Seychelles, Madagascar and the western Mascarenes. [5]

Habitat and biology

Plectorhinchus gibbosus occurs at depths of 8 to 25 m (26 to 82 ft) [4] in coastal reefs, over sandbanks, and in the vicinity of estuaries and will enter fresh water. The small juveniles are found along sheltered sandy shorelines where they float on their sides camouflaged as fallen leaves. The adults prefer waters protected by inshore reefs but can also be found offshore in deep water, frequently recorded forming in small aggregations. [2] In captivity they are known to eat crustaceans and other invertebrates and fish. [6] It is an oviparous species which spawns as distinct pairs. [2]

Systematics

Plectorhinchus ceylonensis was first formally described in 1802 as Holocentrus gibbosus by the French naturalist and politician Bernard Germain de Lacépède with the type locality being given as Surinam, erroneously, but is probably Indonesia. [5] The specific name gibbosus means "humpbacked", a reference to the high body which has a convex dorsal profile. [7]

Utilisation

Plectorhinchus gibbosus is caught using handlines and spear with the catch being sold fresh, although a small amount is preserved by salting. [3] It is a highly regarded food fish. [2]

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References

  1. 1 2 Larson, H. (2012). "Plectorhinchus gibbosus". IUCN Red List of Threatened Species . 2012: e.T196408A2454631. doi: 10.2305/IUCN.UK.2012.RLTS.T196408A2454631.en . Retrieved 20 November 2021.
  2. 1 2 3 4 5 6 7 Froese, Rainer; Pauly, Daniel (eds.). "Plectorhinchus gibbosus". FishBase . February 2021 version.
  3. 1 2 3 R.J. MacKay (2001). "Haemulidae". In Carpenter, K.E. & Neim, Volker H. (eds.). The Living Marine Resources of the Western Central Pacific Volume 5: Bony fishes part 3 (Menidae to Pomacentridae) (PDF). FAO Species Identification Guide for Fishery Purposes. FAO Rome. p. 2974.
  4. 1 2 3 4 Bray, D.J. (2018). "Plectorhinchus gibbosus". Fishes of Australia. Museums Victoria. Retrieved 26 April 2021.
  5. 1 2 Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Plectorhinchus". Catalog of Fishes . California Academy of Sciences . Retrieved 26 April 2021.
  6. ↑ "Plectorhinchus gibbosus". reefapp.net. Retrieved 26 April 2021.
  7. ↑ Christopher Scharpf; Kenneth J. Lazara, eds. (5 January 2021). "Order Lutjaniformes: Families Haemulidae and Lutjanidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Archived from the original on 12 April 2021. Retrieved 26 April 2021.
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