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Eupercaria/misc (Various families in series Eupercaria) >
Labridae (Wrasses) > Julidinae
Eponymy: Albertus Jacobus Duymaer van Twist (1809–1887) was Governor-General of the Dutch East Indies (1851–1856). He is known to have made a collection of zoological specimens during a journey to the Moluccas (1855). (Ref. 128868), visit book page.
More on author: Bleeker.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin récifal; profondeur 5 - 30 m (Ref. 9823). Tropical; 30°N - 28°S
Indo-Pacific: Red Sea to the Tuamoto Islands, north to Ryukyu Islands, south to Rapa.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 18.0 cm TL mâle / non sexé; (Ref. 30573)
Épines dorsales (Total) : 9; Rayons mous dorsaux (Total) : 12; Épines anales: 3; Rayons mous anaux: 11 - 13. Body brown, shading to yellow on abdomen, thorax and lower head, and to reddish posteriorly; reddish lips; posterior of operculum with a large black spot, a green spot above and adjacent to this, and above this is a red spot. Pectoral base with a dark brown bar. Dorsal spines pungent.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Adults occur in clear lagoon and seaward reefs from the lower surge zone to a depth of 30 m (Ref. 1602). Usually in areas with mixed rubble, coral, or rock and sand (Ref. 9710). Usually solitary among large corals. Small juveniles swim with their head down, keeping dorsal and anal fins erected, and may seem like the face of a larger fish when viewed from side on by a predator (Ref. 48636). Oviparous, distinct pairing during breeding (Ref. 205). Occasionally seen in fish markets and aquarium trade.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Oviparous, distinct pairing during breeding (Ref. 205).
Westneat, M.W., 2001. Labridae. Wrasses, hogfishes, razorfishes, corises, tuskfishes. p. 3381-3467. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9823)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur; Aquarium: Commercial
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 24.9 - 29.3, mean 28.2 °C (based on 2766 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00468 - 0.02039), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.5 ±0.37 se; based on food items.
Résilience (Réf.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
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Nutriments (Ref.
124155): Calcium = 76.6 [46.0, 126.8] mg/100g; Iron = 0.683 [0.402, 1.246] mg/100g; Protein = 18.5 [15.6, 20.7] %; Omega3 = 0.153 [0.101, 0.236] g/100g; Selenium = 23.8 [14.6, 42.4] μg/100g; VitaminA = 138 [43, 498] μg/100g; Zinc = 1.61 [1.12, 2.51] mg/100g (wet weight);