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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).
Eponymy: Albert Jacques Frédéric Jansen (d: 1861) was an administrator in the Dutch East Indies (now Indonesia) and lived on Sulawesi (1853–1859). [...] (Ref. 128868), visit book page.
More on author: Bleeker.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina revassocierade; ej vandrande; djupintervall 1 - 15 m (Ref. 1602), usually 1 - 12 m (Ref. 27115). Tropical; 24°C - 28°C (Ref. 27115); 35°N - 47°S, 70°E - 175°W
Indo-West Pacific: Maldives to Fiji, north to southern Japan, south to Lord Howe Island.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 20.0 cm TL hane/ej könsbestämd; (Ref. 9710)
Taggstrålar i ryggfenan (totalt) : 8; Mjukstrålar i ryggfenan (totalt) : 13; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 11. Color pattern remains similar throughout life. Large juveniles and females are mostly black with a single white band and white area below the head to the anus. Males retain the white central band but is more yellow, and develops a second narrow band halfway towards the head (Ref. 48636). Initial phase white with 3 black bars, the first on upper half of head and anterior body containing a yellow streak at edge of opercle, the second across dorsal fin and ventrally to anus, the third covering most of body and posterior portions of dorsal and anal fins. Terminal male with yellow between black bars. Pectoral fins bluish (Ref 9823).
Body shape (shape guide): fusiform / normal.
Occurs in groups (Ref. 90102) in exposed crests of seaward and lagoon reefs, usually rock-based. Minimum depth reported from Ref. 27115. Replaced by T. nigrofascatum in Papua New Guinea (Ref. 90102).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Akvarium: Kommersiell
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 23.6 - 29.3, mean 28.6 °C (based on 2503 cells).
Index för fylogenetisk mångfald (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).
Trofisk nivå (Ref.
69278): 3.1 ±0.2 se; based on diet studies.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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Näringsämnen (Ref.
124155): Calcium = 77.9 [45.6, 128.6] mg/100g; Iron = 0.684 [0.398, 1.279] mg/100g; Protein = 18.4 [15.5, 20.6] %; Omega3 = 0.133 [0.085, 0.204] g/100g; Selenium = 21.7 [13.3, 38.4] μg/100g; VitaminA = 126 [39, 461] μg/100g; Zinc = 1.74 [1.23, 2.83] mg/100g (wet weight);
![Image of Thalassoma jansenii (Jansen\](/images/thumbnails/jpg/tn_Thjan_u0.jpg "Image of Thalassoma jansenii (Jansen\")
