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Eupercaria/misc (Various families in series Eupercaria) >
Labridae (Wrasses) > Julidinae
Etymology: Thalassoma: Greek, thalassa = the sea + Greek, soma = body; the colour of the sea (Ref. 45335); robertsoni: Named in honor of Dr. D. Ross Robertson of the Smithsonian Tropical Research Institute for his contributions to the knowledge of reef fishes of both the eastern Pacific and Caribbean regions.
Eponymy: Dr David Ross Robertson (d: 1946) is an ichthyologist whose bachelor’s degree (1966) and doctorate (1974) were awarded by The University of Queensland, Australia. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin récifal; profondeur 3 - 50 m (Ref. 31087). Tropical
Eastern Central Pacific: Clipperton Island.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 7.8 cm SL mâle / non sexé; (Ref. 31087)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 8; Rayons mous dorsaux (Total) : 13; Épines anales: 3; Rayons mous anaux: 11; Vertèbres: 25. Principal caudal rays 14 (middle 12 branched); upper and lower procurrent caudal rays 4; terminal phase adults mainly pinkish red with broad yellow bar immediately behind head; initial phase white on lower half with broad dark stripe on upper half, forming rectangular blotches posteriorly in preservative (Ref. 31087).
Body shape (shape guide): fusiform / normal.
Found on the outer reef slope, frequently in areas where surge is strong (Ref. 31087).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Oviparous, distinct pairing during breeding (Ref. 205).
Parenti, P. and J.E. Randall, 2000. An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (68):1-97. (Ref. 35918)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00446 - 0.02243), b=3.05 (2.88 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
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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