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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Ahl.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; tiefenbereich 1 - 15 m (Ref. 1602), usually 3 - 15 m (Ref. 27115). Tropical; 24°C - 28°C (Ref. 27115); 31°N - 15°S, 72°E - 157°W
Indo-West Pacific: Maldives (Ref. 30829); then from the Andaman Sea (Ref. 9710) and Christmas Island in the eastern Indian Ocean to the Philippines and the Line Islands, north to the Ryukyu Islands, south to Samoa.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 40.0 cm SL Männchen/unbestimmt; (Ref. 48637)
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 24 - 26; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 22 - 24. Brown in color when preserved; a black bar on upper edge of gill opening; head spotted; a less intense dark mark just behind the eye, connected narrowly with the dark bar; a dark brown region around the caudal spine; outer third of upper pectoral rays pale yellow. Large adults develop a distinctly convex head profile (Ref. 1602). Gill rakers on anterior row:19-23, on posterior row: 21-24.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Inhabits clear outer reef flats and seaward reefs (Ref. 9710). Benthopelagic (Ref. 58302). Solitary or in small wide-ranging groups (Ref. 9710). Usually in schools of mixed similar species when grazing algae (Ref. 48637).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell; Aquarium: Kommerziell
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Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 25.4 - 29.2, mean 28.6 °C (based on 1280 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02042 (0.01188 - 0.03509), b=2.99 (2.85 - 3.13), 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. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Moderate vulnerability (39 of 100).
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Nährstoffe (Ref.
124155): Calcium = 51.8 [22.2, 155.3] mg/100g; Iron = 0.69 [0.26, 1.67] mg/100g; Protein = 18.2 [16.9, 19.4] %; Omega3 = 0.0881 [, ] g/100g; Selenium = 15.2 [5.2, 42.0] μg/100g; VitaminA = 41.7 [9.6, 164.6] μg/100g; Zinc = 2.78 [0.87, 5.21] mg/100g (wet weight);