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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
Eponymy: John W Thompson was an artist and modeller at the Bishop Museum, Honolulu (1901– 1928). [...] (Ref. 128868), visit book page.
More on author: Fowler.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser; brackwasser riff-verbunden; tiefenbereich 0 - 119 m (Ref. 58302), usually 5 - 70 m (Ref. 27115). Tropical; 24°C - 27°C (Ref. 27115); 23°N - 29°S, 32°E - 124°W
Indo-Pacific: East Africa, including the Mascarene Islands (Ref. 37792) to the Hawaiian, Marquesan, and Ducie islands, north to southern Japan, south to Rapa (Austral Islands). The Indian Ocean population is without the white caudal fin.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 27.0 cm TL Männchen/unbestimmt; (Ref. 3145)
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 23 - 26; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 23 - 26. Body uniformly brown to dark brown; caudal fin pale in color (snow white in live fishes). Small, dark spot below and adjacent to axil of pectoral fin. Anterior gill rakers 15-18; posterior 14-16. Snout length 7.9 to 8.2 times in SL. Least depth of caudal peduncle 2.2 to 2.5 times in head length (Ref 9808).
Body shape (shape guide): short and / or deep; Cross section: compressed.
This occasionally schooling species occurs in steep outer reef slopes and drop-offs (Ref. 1602, 48637). Benthopelagic over coral and sand (Ref. 58302). Feeds on zooplankton, particularly large gelatinous forms, and on fish eggs and crustaceans (Ref. 1920). Minimum depth reported taken from Ref. 128797.
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): 24.6 - 28.8, mean 27.6 °C (based on 1218 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02291 (0.01098 - 0.04781), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.6 ±0.41 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (17 of 100).
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Nährstoffe (Ref.
124155): Calcium = 54.8 [23.3, 177.8] mg/100g; Iron = 0.771 [0.278, 1.964] mg/100g; Protein = 18.8 [17.6, 19.9] %; Omega3 = 0.15 [0.06, 0.34] g/100g; Selenium = 17.3 [5.4, 64.9] μg/100g; VitaminA = 82.7 [22.5, 295.2] μg/100g; Zinc = 2.22 [0.71, 4.23] mg/100g (wet weight);