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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Linnaeus.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; standorttreu (Ref. 52884); tiefenbereich 0 - 67 m (Ref. 1602), usually 2 - 67 m (Ref. 27115). Tropical; 21°C - 29°C (Ref. 27115); 30°N - 24°S
Eastern Indian Ocean: known only from Cocos-Keeling Islands and Christmas Island. Pacific Ocean: Ryukyu Islands and Great Barrier Reef to the Hawaiian Islands and French Polynesia (excluding Rapa). This species has crossed the Eastern Pacific Barrier to the Revillagigedo Islands, Cocos Island, Galapagos Islands, and the coast of Mexico.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 36.0 cm FL Männchen/unbestimmt; (Ref. 125599); max. veröff. Gewicht: 620.00 g (Ref. 125599); max. veröff. Alter: 34 Jahre (Ref. 52229)
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 28 - 31; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 26 - 28. A horizontally elongate white blotch directly below eye. No orange band in outer part of dorsal fin. Caudal peduncle black except for yellow edge of socket and sheath of peduncular spine. Base of pectoral fin black (ref 9808).Gill rakers on anterior row:17-19, on posterior row:18-20.
Body shape (shape guide): short and / or deep.
Adults inhabit hard substrate areas of clear lagoon and seaward reefs from the lower surge zone to at least 67 m and feeds on filamentous algae. Solitary or in groups (Ref. 90102). Monogamous (Ref. 52884, 48637). Benthopelagic (Ref. 58302). Small juveniles shy among large corals (Ref. 48637). Territorial species. Common throughout Micronesia and hybridizes with the rare A. achilles. Size of metamorphosis from the postlarva stage to juvenile is 5.5 to 6 cm (Ref. 9267). Minimum depth reported taken from Ref. 128797.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Monogamous mating is observed as both facultative and social (Ref. 52884).
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kleinfischerei; Aquarium: Kommerziell
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.02188 (0.01420 - 0.03370), b=2.95 (2.83 - 3.07), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
2.0 ±0.00 se; based on food items. |
Widerstandsfähigkeit (Ref. 120179) |
mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (K=0.28; growth and reproduction as expected for Medium; tmax=34 observed only in deep water (RF)). |
Anfälligkeit der Fischerei (Ref. 59153) |
High vulnerability (64 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Medium.
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Nährstoffe (Ref. 124155) |
Calcium = 79 [33, 233] mg/100g; Iron = 0.872 [0.331, 2.159] mg/100g; Protein = 18.1 [16.8, 19.3] %; Omega3 = 0.116 [0.053, 0.246] g/100g; Selenium = 19.6 [6.8, 61.6] μg/100g; VitaminA = 42.5 [9.8, 174.9] μg/100g; Zinc = 3.14 [1.00, 5.83] mg/100g (wet weight); |