Acanthurus olivaceus

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Acanthurus olivaceus
Acanthurus olivaceus 1.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Acanthuridae
Genus: Acanthurus
Species:
A. olivaceus
Binomial name
Acanthurus olivaceus
Synonyms [2]
  • Hepatus olivaceus (Bloch & Schneider, 1801)
  • Rhombotides olivaceus (Bloch & Schneider, 1801)
  • Teuthis olivaceus (Bloch & Schneider, 1801)
  • Acanthurus eparai Lesson, 1831
  • Acanthurus humeralis Valenciennes, 1835
  • Acanthurus erythromelas Swainson, 1839
  • Ctenodon erythromelas (Swainson, 1839)
  • Harpurus paroticus Forster, 1844
  • Acanthurus chrysosoma Bleeker, 1857
  • Hepatus chrysosoma (Bleeker, 1857)
  • Rhombotides xanthosoma Bleeker, 1865

Acanthurus olivaceus, the orange-band surgeonfish, the orange-shoulder surgeonfish or the orangebar tang, [1] is a species of marine ray-finned fish belonging to the family Acanthuridae, this family includes the surgeonfishes, unicornfishes and tangs. It lives in the tropical waters of the Indo-west Pacific. [3]

Contents

Taxonomy

Acanthurus olivaceus was first formally described in 1801 by the German naturalists Marcus Elieser Bloch and Johann Gottlob Theaenus Schneider with its type locality given as Tahiti in the Society Islands, [4] This species is closely related to the range restricted Marquesas surgeonfish ( A. reversus ), and together these taxa form a species complex within the genus Acanthurus . [5] The genus Acanthurus is one of two genera in the tribe Acanthurini which is one of three tribes in the subfamily Acanthurinae which is one of two subfamilies in the family Acanthuridae. [6]

Description

The orange band surgeonfish is a deep-bodied, laterally-compressed oval fish, rather over twice as long as it is deep, with a maximum length of 35 cm (14 in), although a more typical length is 25 cm (10 in). Both dorsal and anal fins are long and low, extending as far as the caudal peduncle. The dorsal fin has nine spines and 23 to 25 soft rays while the anal fin has three spines and 22 to 24 soft rays. The tail fin is crescent-shaped, the points growing longer as the fish gets older. The adult fish is greyish-brown; a sharp vertical line usually separates the paler front half of the fish from the darker hind portion. There is a distinctive orange bar, surrounded by a purplish-black margin, immediately behind the top of the gill cover, and blue and orange lines at the bases of the fins. Like all surgeonfish, this species has a pair of scalpel-like scales that project upward from the caudal peduncle. Larger males develop a convex snout which clearly differentiates them from females. Juvenile fish are yellow. [7] [2]

Distribution and habitat

This fish is found in the tropical eastern Indian Ocean and the western Pacific Ocean. Its range extends from Christmas Island and the Cocos Keeling Islands to southern Japan, Western, Northern and Eastern Australia, Indonesia, the Philippines and Hawaii. It is associated with reefs, often on outer slopes and in more exposed locations. As an adult, it is a solitary fish or sometimes joins schools, with a depth range of between about 9 and 46 m (30 and 150 ft), but juveniles are found in shallower water in sheltered locations in small groups. [1]

Ecology

The orange band surgeonfish feeds on detritus and on algae growing on the seabed, as well as the film of diatoms and filamentous algae that grows on sand and other substrates. [2] It often forms schools with parrotfish, tangs and other species of surgeonfish, which all have similar diets; their grazing is important in maintaining biodiversity by keeping rocks free from excessive growth of algae so that coral larvae can find suitable habitat to settle. The fish can change colour from dark to pale almost instantaneously. [8] [ better source needed ]

Status

The orange band surgeonfish has a wide distribution in the tropical Indo-Pacific region and is moderately common. It is sometimes found in fish markets and in the aquarium trade but is not a species targeted by fisheries. No particular threats have been recognised, so the International Union for Conservation of Nature has listed its conservation status as being of least concern. [1]

Related Research Articles

<span class="mw-page-title-main">Acanthuridae</span> Family of fishes with caudal spines

Acanthuridae are a family of ray-finned fish which includes surgeonfishes, tangs, and unicornfishes. The family includes about 86 extant species of marine fish living in tropical seas, usually around coral reefs. Many of the species are brightly colored and popular in aquaria.

<i>Acanthurus</i> Genus of fishes

Acanthurus is a genus of marine ray-finned fish belonging to the family Acanthuridae, which includes the surgeonfishes, unicornfishes and tangs, found in the Atlantic, Indian and Pacific Ocean. They are found in tropical oceans, especially near coral reefs, with most species in the Indo-Pacific but a few are found in the Atlantic Ocean. As other members of the family, they have a pair of spines, one on either side of the base of the tail which are dangerously sharp.

<i>Acanthurus xanthopterus</i> Species of fish

Acanthurus xanthopterus, the yellowfin surgeonfishyellowmask surgeonfish, ringtail surgeonfish or Cuvier's surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This species has a wide Indo-Pacific distribution.

<i>Acanthurus achilles</i> Species of fish

Acanthurus achilles, the Achilles tang, redtail surgeonfish or redspot surgeonfish, is a marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Pacific Ocean.

<i>Acanthurus bahianus</i> Species of fish

Acanthurus bahianus, the ocean surgeon or ocean surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found on reefs in the Atlantic Ocean off the coast of Brazil. It is sometimes marketed as a food item, but it is more often used as bait, or in tropical saltwater aquaria.

<i>Naso lituratus</i> Species of fish

Naso lituratus, the clown unicornfish, orangespined unicornfish, black-finned unicornfish, Pacific orangespined unicornfish, blackfinned unicornfish or stripefaced unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the eastern Indian Ocean and western Pacific Ocean.

<i>Acanthurus nigroris</i> Species of fish

Acanthurus nigroris, the bluelined surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, which includes the surgeonfishes, unicornfishes and tangs. This species and A. nigros have been regarded as synonymous with the combined taxon having a wide Indo-Pacific distribution, if treated as a separate valid species it is confined to the United States Pacific islands.

<i>Acanthurus pyroferus</i> Species of fish

Acanthurus pyroferus, chocolate surgeonfish, mimic surgeonfish, orange-gilled surgeonfish, Pacific mimic surgeon, and yellowspot surgeon, is a species of marine ray-finned fish belonging to the family Acanthuridae, which includes the sugeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific region.

<i>Acanthurus tristis</i> Species of fish

Acanthurus tristis, the Indian Ocean mimic surgeonfish, blackcheek surgeonfish or yellowspot surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This species is found in the eastern Indian Ocean.

<i>Acanthurus nigricans</i> Species of fish

Acanthurus nigricans, the goldrim surgeonfish, velvet surgeon, whitecheek surgeonfish, yellow-banded surgeonfish or yellowrimmed surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found from the central Indo-Pacific area to the eastern Pacific coast, Hawaii included.

<i>Acanthurus japonicus</i> Species of fish

Acanthurus japonicus, the Japan surgeonfish, white-faced surgeonfish, gold rim tang, powder brown tang and white-nose surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes or tangs. This fish is found in the Western Pacific Ocean.

<i>Acanthurus maculiceps</i> Species of fish

Acanthurus maculiceps, the white-freckled surgeonfish, yellow-freckled surgeonfish, pale-lined surgeonfish,spotted-faced surgeonfish or earbar surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-West Pacific region.

<i>Acanthurus nigrofuscus</i> Species of fish

Acanthurus nigrofuscus, the brown surgeonfish, blackspot surgeonfish, brown tang, dusky surgeon, lavender tang or spot-cheeked surgeonfish, is a species of marine ray-finned fish belonging to the familyAcanthuridae, which includes the surgeonfishes, unicornishes and tangs. This species is a common and abundant fish occurring across a wide Indo-Pacific range.

<i>Acanthurus blochii</i> Species of fish

Acanthurus blochii, the ringtail surgeonfish or dark surgeonfish, is a marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Indo-Pacific.

<span class="mw-page-title-main">Doubleband surgeonfish</span> Species of fish

The doubleband surgeonfish or lieutenant tang, is a marine ray-finned fish in the family Acanthuridae. It is found in the tropical and sub-tropical Indo-Pacific region and grows to a maximum length of 31 cm (12 in).

<i>Acanthurus nigricauda</i> Species of fish

Acanthurus nigricauda, the epaulette surgeonfish, black-barred surgeonfish, eye-line surgeonfish, shoulderbar surgeonfish, white-tail surgeonfish or blackstreak surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. It is native to the Indo-Pacific region.

<i>Acanthurus auranticavus</i> Species of fish

Acanthurus auranticavus, the ringtail surgeonfish or orange-socket surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-West Pacific.

<i>Acanthurus grammoptilus</i> Species of fish

Acanthurus grammoptilus the finelined surgeonfish, inshore surgeonfish, Northwest surgeonfish or ring-tailed surgeonfis, is a marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Western Pacific Ocean.

Acanthurus reversus is a species of marine ray-finned fish belonging to the family Acanthuridae, which includes the surgeonfishes, unicornfishes and tangs. This fish is endemic to French Polynesia.

<span class="mw-page-title-main">Grey-head surgeonfish</span> Species of fish

The grey-head surgeonfish is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes. unicornfishes and tangs. This species has a wide Indo-Pacific distribution.

References

  1. 1 2 3 4 Russell, B.; McIlwain, J.; Choat, J.H.; et al. (2012). "Acanthurus olivaceus". IUCN Red List of Threatened Species . 2012: e.T177991A1514102. doi: 10.2305/IUCN.UK.2012.RLTS.T177991A1514102.en . Retrieved 10 January 2018.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2023). "Acanthurus olivaceus" in FishBase. June 2023 version.
  3. ↑ "Acanthurus olivaceus: Distribution". Encyclopedia of Life . Retrieved 3 May 2014.
  4. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Acanthurus". Catalog of Fishes . California Academy of Sciences . Retrieved 28 September 2023.
  5. ↑ Michelle R. Gaither; Moisés A. Bernal; Richard R. Coleman; et al. (2015). "Genomic signatures of geographic isolation and natural selection in coral reef fishes". Molecular Ecology. 24 (7): 1543–1557. Bibcode:2015MolEc..24.1543G. doi: 10.1111/mec.13129 . PMID   25753379.
  6. ↑ J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 497–502. ISBN   978-1-118-34233-6.
  7. ↑ "Acanthurus olivaceus: fiche poisson" (in French). AquaPortail. Retrieved 8 April 2020.
  8. ↑ Lillie, Terry (28 April 2019). "Meet Na'ena'e the orange band surgeonfish". The Garden Island. Retrieved 13 April 2020.
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