Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin récifal; profondeur 10 - 40 m (Ref. 9710). Tropical; 30°N - 25°S
Pacific Ocean: Ryukyu Islands to the Line and Ducie islands, north to the Ryukyu Islands, south to the Great Barrier Reef.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 50.0 cm TL mâle / non sexé; (Ref. 2334); common length : 38.0 cm SL mâle / non sexé; (Ref. 37816)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 9; Rayons mous dorsaux (Total) : 10; Épines anales: 3; Rayons mous anaux: 9. Coloration changes slowly with growth. The light green patch on the caudal peduncle is present on individuals as small as 15 cm and the distinctive tan facial markings are on most individuals above 20 cm. Large males develop a near-vertical forehead profile and long lobes and a well-developed lunate caudal fin.
Body shape (shape guide): elongated; Cross section: compressed.
Often seen in small schools on exposed reef flats and seaward reefs (Ref. 1602). Minimum depth reported from Ref. 90102. Feeds on benthic algae (Ref. 89972).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Oviparous, distinct pairing during breeding (Ref. 205).
Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2)
Menace pour l'homme
Reports of ciguatera poisoning (Ref. 130160)
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): 25.3 - 28.8, mean 27.7 °C (based on 116 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00743 - 0.01775), b=3.10 (2.97 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (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): Low to moderate vulnerability (34 of 100).
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Nutriments (Ref.
124155): Calcium = 38.1 [12.5, 124.2] mg/100g; Iron = 0.606 [0.218, 1.571] mg/100g; Protein = 18.2 [16.1, 20.1] %; Omega3 = 0.0586 [, ] g/100g; Selenium = 49.1 [15.1, 160.4] μg/100g; VitaminA = 32.9 [8.1, 134.8] μg/100g; Zinc = 2.07 [0.93, 3.80] mg/100g (wet weight);