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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.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien rifbewoner; diepte 3 - 50 m (Ref. 31087). Tropical
Eastern Central Pacific: Clipperton Island.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 7.8 cm SL mannelijk / geslacht onbekend; (Ref. 31087)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 8; Dorsale zachte stralen (totaal) : 13; Anale stekels: 3; Anale zachte stralen: 11; Wervels: 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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref.
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).
Trofisch niveau (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): Low vulnerability (10 of 100).
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