Sealife guideThe orangeband surgeonfishAcanthurus olivaceus
Last updated on 09/05/2024 at 09:40 PM
Taxonomy
English names
Orangeband surgeonfish
French namesPoisson chirurgien olive à bande orangeChirurgien à épaulettesChirurgien gendarme (Polynésie)
Scientific nameAcanthurus olivaceus (Bloch & Schneider, 1801)
FamilyAcanthuridae
OrderAcanthuriformes
ClassActinopterygii
Description
The orangeband surgeonfish, as its name suggests, has a dominant greenish-brown color with a distinctive large, horizontally elongated oval orange patch that starts behind its eye and ends in a blue-violet comet-shaped tail in the middle of its body.

The orangeband surgeonfish (Acanthurus olivaceus) © Rickard Zerpe sous licence Creative Commons
A thin light-colored border outlines its long dorsal and anal fins.
The orangeband surgeonfish is a modest-sized fish, reaching about 8 inches in length when fully grown.
Geographic range
The orangeband surgeonfish is found in the tropical waters of the central Pacific ocean and also in the Indian ocean around the coral reefs of Mauritius.
Diet
Like most surgeonfish, the orangeband surgeonfish is primarily herbivorous. It feeds on algae and detritus scraped from the surfaces of coral reefs and rocky bottoms using its beak-shaped mouth.
Did you know ?
As an herbivore, the orangeband surgeonfish helps maintain healthy coral reefs by controlling algae growth.
The orangeband surgeonfish is listed as many other marine species within The IUCN Red List of threatened species. The orangeband surgeonfish appears in the IUCN Red List since 2012 within the category Least Concern !
Within the same genus

Black-spot surgeonfish
(Acanthurus bariene)
(Acanthurus bariene)

Mimic surgeonfish
(Acanthurus pyroferus)
(Acanthurus pyroferus)

Ocean tang
(Acanthurus bahianus)
(Acanthurus bahianus)

Palelipped surgeonfish
(Acanthurus leucocheilus)
(Acanthurus leucocheilus)

Sohal surgeonfish
(Acanthurus sohal)
(Acanthurus sohal)

Striped surgeonfish
(Acanthurus lineatus)
(Acanthurus lineatus)

Yellowfin surgeonfish
(Acanthurus xanthopterus)
(Acanthurus xanthopterus)

Yellowmask surgeonfish
(Acanthurus mata)
(Acanthurus mata)
Within the same family

Bluetail unicornfish
(Naso caeruleacauda)
(Naso caeruleacauda)

Humpback unicornfish
(Naso brachycentron)
(Naso brachycentron)

Indian sailfin surgeonfish
(Zebrasoma desjardinii)
(Zebrasoma desjardinii)

Kole tang
(Ctenochaetus strigosus)
(Ctenochaetus strigosus)

Orangespine unicornfish
(Naso lituratus)
(Naso lituratus)

Paletail unicornfish
(Naso brevirostris)
(Naso brevirostris)

Palette surgeonfish
(Paracanthurus hepatus)
(Paracanthurus hepatus)

Sailfin tang
(Zebrasoma velifer)
(Zebrasoma velifer)
Discover also

Blue-green chromis
(Chromis viridis)
(Chromis viridis)

Bluespotted grouper
(Cephalopholis cyanostigma)
(Cephalopholis cyanostigma)

Copperbanded butterfly
(Chelmon rostratus)
(Chelmon rostratus)

Exquisite fairy wrasse
(Cirrhilabrus exquisitus)
(Cirrhilabrus exquisitus)

Mahi-mahi
(Coryphaena hippurus)
(Coryphaena hippurus)

Pinktail triggerfish
(Melichthys vidua)
(Melichthys vidua)

Randall's prawn goby
(Amblyeleotris randalli)
(Amblyeleotris randalli)

Western barhead damselfish
(Neoglyphidodon thoracotaeniatus)
(Neoglyphidodon thoracotaeniatus)
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