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 familyAcanthuridae, this family includes the surgeonfishes, unicornfishes and tangs. It lives in the tropical waters of the Indo-west Pacific.[3]
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 habitatedit
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]
Ecologyedit
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]
Statusedit
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]
Referencesedit
^ abcdRussell, 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.
^ abcFroese, Rainer; Pauly, Daniel (eds.) (2023). "Acanthurus olivaceus" in FishBase. June 2023 version.
^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. doi:10.1111/mec.13129.
^J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 497–502. ISBN978-1-118-34233-6.
^"Acanthurus olivaceus: fiche poisson" (in French). AquaPortail. Retrieved 8 April 2020.
^Lillie, Terry (28 April 2019). "Meet Na'ena'e the orange band surgeonfish". The Garden Island. Retrieved 13 April 2020.
External linksedit
Wikimedia Commons has media related to Acanthurus olivaceus.
Wikispecies has information related to Acanthurus olivaceus.
Encyclopedia of Life: Acanthurus olivaceus (Orange Shoulder Tang)
Photos of Acanthurus olivaceus on Sealife Collection
January 01, 1970
acanthurus, olivaceus, orange, band, surgeonfish, orange, shoulder, surgeonfish, orangebar, tang, species, marine, finned, fish, belonging, family, acanthuridae, this, family, includes, surgeonfishes, unicornfishes, tangs, lives, tropical, waters, indo, west, . 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 Acanthurus olivaceus Conservation status Least Concern IUCN 3 1 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Acanthuriformes Family Acanthuridae Genus Acanthurus Species A olivaceus Binomial name Acanthurus olivaceusBloch amp J G Schneider 1801 Synonyms 2 Hepatus olivaceus Bloch amp Schneider 1801 Rhombotides olivaceus Bloch amp Schneider 1801 Teuthis olivaceus Bloch amp Schneider 1801 Acanthurus eparai Lesson 1831Acanthurus humeralis Valenciennes 1835Acanthurus erythromelas Swainson 1839Ctenodon erythromelas Swainson 1839 Harpurus paroticus Forster 1844Acanthurus chrysosoma Bleeker 1857Hepatus chrysosoma Bleeker 1857 Rhombotides xanthosoma Bleeker 1865 Contents 1 Taxonomy 2 Description 3 Distribution and habitat 4 Ecology 5 Status 6 References 7 External linksTaxonomy editAcanthurus 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 editThe 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 editThis 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 editThe 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 editThe 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 References edit a b c d 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 a b c Froese Rainer Pauly Daniel eds 2023 Acanthurus olivaceus in FishBase June 2023 version Acanthurus olivaceus Distribution Encyclopedia of Life Retrieved 3 May 2014 Eschmeyer William N Fricke Ron amp van der Laan Richard eds Species in the genus Acanthurus Catalog of Fishes California Academy of Sciences Retrieved 28 September 2023 Michelle R Gaither Moises 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 doi 10 1111 mec 13129 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 Acanthurus olivaceus fiche poisson in French AquaPortail Retrieved 8 April 2020 Lillie Terry 28 April 2019 Meet Na ena e the orange band surgeonfish The Garden Island Retrieved 13 April 2020 External links edit nbsp Wikimedia Commons has media related to Acanthurus olivaceus nbsp Wikispecies has information related to Acanthurus olivaceus Orangespot Tang care sheet at FishGeeks Encyclopedia of Life Acanthurus olivaceus Orange Shoulder Tang Photos of Acanthurus olivaceus on Sealife Collection Retrieved from https en wikipedia org w index php title Acanthurus olivaceus amp oldid 1222410396, wikipedia, wiki, book, books, library,
