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Thalassoma bifasciatum (Bloch, 1791)

Bluehead
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Native range | All suitable habitat | Point map | Year 2050
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Thalassoma bifasciatum   AquaMaps   Data sources: GBIF OBIS
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Image of Thalassoma bifasciatum (Bluehead)
Thalassoma bifasciatum
Picture by Muséum-Aquarium de Nancy/B. Alenda


United States (contiguous states) country information

Common names: Bluehead, Bluehead wrasse
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in the Flower Garden Banks National Marine Sanctuary (Ref. 45556). Also Ref. 26340.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Robins, C.R. and G.C. Ray, 1986
National Database:

Common names from other countries

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Labridae (Wrasses) > Corinae
Etymology: Thalassoma: Greek, thalassa = the sea + Greek, soma = body; the colour of the sea (Ref. 45335).
  More on author: Bloch.

Environment: milieu / climate zone / depth range / distribution range Écologie

marin récifal; profondeur 0 - 40 m (Ref. 9710), usually 3 - 30 m (Ref. 27115).   Tropical; 23°C - 26°C (Ref. 27115); 34°N - 7°N, 99°W - 58°W

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Western Atlantic: Bermuda, Florida (USA), southeastern Gulf of Mexico and throughout the Caribbean Sea to northern South America.

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL mâle / non sexé; (Ref. 26340); âge max. reporté: 3.00 années (Ref. 3420)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 8; Rayons mous dorsaux (Total): 12-13; Épines anales 3; Rayons mous anaux: 10 - 11. Body elongate; 3 primary color phases, the smallest with a black mid-lateral stripe which continues as pale red blotches on head; back above stripe yellow on reef fish and whitish on fish from inshore non-reef areas, and body below white. The largest phase, has a bright blue head and a green body with two broad vertical black bars anteriorly which are separated by a light blue interspace; this phase is always male. The small yellow phase with the black stripe may be either male or female (Ref. 13442).

Biologie     Glossaire (ex. epibenthic)

Inhabits reef areas, inshore bays and seagrass beds. Feeds mainly on zooplankton and small benthic animals, but may also feed on ectoparasites of other fishes (Ref. 9626). Spawn at midday throughout the year (Ref. 26938). A protogynous hermaphrodite (Ref. 55367). Generally of no interest to fisheries because of its small average size (Ref. 5217).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

A diandric species (Ref. 55367). Sex reversal is completed in more than 3-4 weeks (Ref. 34185, 34257). Length at sex change = 8.3 cm TL, forms leks during breeding (Ref. 55367).

Référence principale Upload your references | Références | Coordinateur : Westneat, Mark | Collaborateurs

Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Préoccupation mineure (LC) ; Date assessed: 12 April 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

Aquarium: Commercial
FAO(Publication : search) | FishSource |

Plus d'informations

Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
Références
Aquaculture
Profil d'aquaculture
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Electrophoreses
Héritabilité
Pathologies
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Estimates based on models

Preferred temperature (Ref. 115969): 25 - 28.1, mean 26.8 (based on 222 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00512 - 0.01553), b=3.02 (2.87 - 3.17), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.3   ±0.1 se; based on diet studies.
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (k=0.7; tmax=3).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (20 of 100).