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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin récifal; profondeur 6 - 50 m (Ref. 37816), usually 30 - ? m (Ref. 9710). Tropical; 23°C - 29°C (Ref. 27115); 30°N - 24°S, 32°E - 179°E
Indo-West Pacific: Mozambique (Ref. 1920) and Maldives to the western Pacific.
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 50.0 cm TL mâle / non sexé; (Ref. 2334)
Épines dorsales (Total) : 9; Rayons mous dorsaux (Total) : 26 - 28; Épines anales: 3; Rayons mous anaux: 25 - 26. Body brown; a round black spot at upper gill opening; dark blue line just below the bases of dorsal and anal fins. Dorsal fin with soft part having longer base than spinous part. Minute scales. Gill rakers in anterior row 19-23, posterior 22-24. A dark brown area surrounding the caudal spine. Large males develop highly convex foreheads that extend beyond the mouth (Ref. 1602).
Body shape (shape guide): short and / or deep; Cross section: compressed.
Occurs in clear seaward reef slopes, below 15 m, usually below 30 m (Ref. 9710). Adults mainly on deep coastal reef slopes and outer reef walls (Ref. 48637). Found singly or in pairs (Ref. 9710). Feeds on algal film on bare rocks (Ref. 9710). Juveniles found in shallow protected reefs, usually between soft coral, in 0.2-3 m depth (Ref. 9710).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; Aquarium: Commercial
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 24.5 - 28.4, mean 27.5 °C (based on 214 cells).
Indice de diversité phylogénétique (Réf.
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).
Niveau trophique (Réf.
69278): 2.0 ±0.00 se; based on food items.
Résilience (Réf.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Vulnérabilité de la pêche (Ref.
59153): Moderate vulnerability (40 of 100).
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Nutriments (Ref.
124155): Calcium = 44 [18, 123] mg/100g; Iron = 0.662 [0.254, 1.596] mg/100g; Protein = 18.2 [16.9, 19.5] %; Omega3 = 0.0961 [, ] g/100g; Selenium = 20.8 [7.2, 58.1] μg/100g; VitaminA = 34 [8, 139] μg/100g; Zinc = 2.49 [0.79, 4.57] mg/100g (wet weight);
