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Hemigymnus sexfasciatus (Rüppell, 1835)

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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Hemigymnus sexfasciatus   AquaMaps   Data sources: GBIF OBIS
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drawing shows typical species in Labridae.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Labridae (Wrasses) > Corinae
Etymology: Hemigymnus: Greek, hemi = half + Greek, gymnos = naked (Ref. 45335).

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

seewasser riff-verbunden; tiefenbereich 1 - 20 m (Ref. 93095). Tropical

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Western Indian Ocean: Red Sea, Gulf of Tadjoura, east in the Gulf of Aden at least to Sikha Island, southwest of Al Mukallah, Yemen.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 36.5 cm TL Männchen/unbestimmt; (Ref. 93095)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

This species is distinguished by the following set of characters: gill rakers 20-23 (rarely 23); long pelvic fins, reaching anus in mature females and to or beyond origin of anal fin in males, one to spinous portion of fin; small juveniles are dark green, mottled with light yellowish green, with a white bar from anterior part of dorsal fin to abdomen, 4 faint narrower bars posteriorly, a pale bar on nape, 2 ventrally on chest; larger juveniles are dark brown with more distinct pale yellow bars; body of small females black with 5 white bars, progressively narrower posteriorly, the last posteriorly on caudal peduncle faint, the first two expanding ventrally; head white with a curving black bar from nape to eye; snout and interorbital are green with irregular pink bands radiating from eye; pectoral-fin rays yellow, membranes transparent; female in the process of sex change, indicated by the golden scale centers dorsally on the first dark bar of the body and on the dark olive bar of the nape; pelvic fins pale blue with orange streaks; body of males dark green, with spindle-shaped scales edged in light green; three pale gray bars on anterior two-thirds of body that broaden ventrally, the scale edges narrowly light green; first dark bar on body, ending at base of pectoral fin, with green margins and vertically elongate golden centers, many merging above and below, more as irregular vertical green and golden lines than as scale patterns; curving dark green bar of nape with golden scale centers, merging with a broad light yellowish brown band with irregular green bands that passes through eye onto snout; cheek with a broad near-white area, sparsely and faintly spotted with green, shading ventrally to blue; upper lip mainly greenish yellow; chest and abdomen pale blue with orange scale centers; pectoral-fin base in a large deep blue spot (Ref. 93095).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Occurs on coral reefs and adjacent habitats, on sand and coral rubble. The fish take a mouthful of sand and gravel from the substratum, where small fossorial prey are sorted out within the mouth and pharynx, and inorganic fragments are forcefully ejected from of the mouth. May also feed opportunistically on larger prey (crabs, echinoids, molluscs, ophiuroids, polychaetes) (Ref. 93095). Large breeding males in the Red Sea observed to exhibit h a reversal of the black-and-white barred color pattern of the body similar to H. fasciatus (Ref. 34222).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Oviparous, with distinct pairing during breeding (Ref. 205).

Hauptreferenz Upload your references | Referenzen | Koordinator : Westneat, Mark | Partner

Randall, J.E., 2013. Review of the Indo-Pacific labrid fish genus Hemigymnus. J. Ocean Sci. Found. 6:2-18. (Ref. 93095)

IUCN Rote Liste Status (Ref. 130435)

  Daten mangelhaft (DD) ; Date assessed: 12 June 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 26.9 - 29.2, mean 28.2 °C (based on 249 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00470 - 0.02030), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100).