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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Forster.
Environment: milieu / climate zone / Tiefenbereich / distribution range
Ökologie
seewasser riff-verbunden; tiefenbereich 0 - 10 m (Ref. 128797). Tropical; 30°N - 30°S, 52°E - 140°W
Indo-Pacific: oceanic islands in the western Indian Ocean to the Hawaiian, Marquesan and Tuamoto islands, north to the Ryukyu Islands, south to New Caledonia and Rapa.
Size / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 26.0 cm TL Männchen/unbestimmt; (Ref. 9710)
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 27 - 30; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 23 - 26. Preserved color is brown; spotted, white spots usually bordered with dark brown (may help conceal it in turbulent water that is often filled with small bubbles). Pelvic fins bright yellow. Each side of caudal peduncle with a single, sharp, forward-pointing erectile spine. Gill rakers on anterior row: 21-24; gill rakers on posterior row: 19-23.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Occurs in surge zone of clear seaward reefs (Ref. 9710, 58302). Benthopelagic (Ref. 58302); mainly oceanic and found schooling in shallow depths over reef flats subject to surge or currents (Ref. 48637). Browses on filamentous and calcareous algae. Forms schools.
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | 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 2025-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell; Aquarium: Kommerziell
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Estimates based on models
Preferred temperature (Ref.
123201): 25 - 29.3, mean 28.2 °C (based on 1389 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03311 (0.02062 - 0.05319), b=2.95 (2.82 - 3.08), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.0 ±0.00 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
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Nutrients (Ref.
124155): Calcium = 73.8 [32.2, 227.4] mg/100g; Iron = 0.815 [0.307, 2.046] mg/100g; Protein = 18.2 [16.9, 19.5] %; Omega3 = 0.0903 [, ] g/100g; Selenium = 12.6 [4.3, 37.6] μg/100g; VitaminA = 45.3 [10.7, 180.9] μg/100g; Zinc = 3.13 [0.98, 5.95] mg/100g (wet weight);
