Hemigymnus melapterus, Blackeye thicklip : fisheries, gamefish, aquarium

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Hemigymnus melapterus (Bloch, 1791)

Blackeye thicklip
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Hemigymnus melapterus   AquaMaps   Data sources: GBIF OBIS
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Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

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

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

; marien rifbewoner; diepteverspreiding 1 - 30 m (Ref. 9710), usually 5 - 30 m (Ref. 27115). Tropical; 24°C - 28°C (Ref. 27115); 30°N - 36°S, 24°E - 138°W

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Indo-West Pacific: Rde Sea, East Africa to Samoa; north to Ryukyu Is.; south to Australia.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 39.6 cm TL mannelijk/geslacht niet bekend; (Ref. 125598); Maximaal gepubliceerd gewicht: 1.3 kg (Ref. 125598)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 9; Dorsale zachte stralen (totaal): 10-11; Anale stekels 3; Anale zachte stralen: 11. This species is distinguished by the following characters: gill rakers 26-29; small juveniles dark brown, green on snout and interorbital, with a slightly oblique white bar from front of dorsal fin to abdomen, and 2 narrow pale yellowish bars below soft portion of dorsal fin that fade ventrally; larger juveniles have a white bar from origin of dorsal fin, passing beneath pectoral fin onto abdomen; head and body anterior to bar greyish green, posterior to bar black; posterior caudal peduncle and caudal fin yellow, often with 1 or 2 small black spots centrally near base: small females with body posterior to a curving demarcation between origins of dorsal and anal fins blackish with a narrow dark greenish bar on each scale, grading to yellow with blue-green spots posteriorly on caudal peduncle and fin; large females dark green posterior to oblique demarcation on body, the scales rimmed in black, with a vertical green line or spot on each scale; head and anterior body light green dorsally, pale blue-green ventrally, have irregular bands on snout and above eye, and a large complex marking behind eye; body of males posterior to demarcation dark green, each scale with narrow pale blue-green and black posterior margin; head green dorsally with irregular green to blue-green bands, including a blue ring around eye; cheek and operculum pinkish white with irregular light blue lines and spots, except for a large yellowish green blotch centrally on cheek without markings; lips and ventral part of head mainly pale blue; chest and abdomen pinkish white with a light blue spot or arc on scales (Ref. 93095).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found in subtidal reef flats and lagoon and seaward reefs. Juveniles occur inshore, found among branching corals while adults found in areas of mixed sand, rubble, and coral (Ref. 9710). Large adults in deeper water (Ref. 48636). Maximum length beyond 45 cm TL is unlikely, with largest measured individual at 37 cm TL (Ref, Feeds mainly on small invertebrates, especially crustaceans, polychaete worms, mollusks and brittle stars (Ref. 9823). Diet changing from primarily demersal planktonic crustaceans to hard-shelled invertebrates with growth (Ref. 37816).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

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

Voornaamste referentie Upload your references | Referenties | Coördinator : Westneat, Mark | Medewerkers

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

Status op de Rode Lijst van het IUCN (Ref. 125652)

  Niet bedreigd (LC) ; Date assessed: 12 July 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





Gebruik door de mens

Visserij: van minder commercieel belang; vis voor de hengelsport: ja; Aquarium: Commercieel
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Estimates based on models

Preferred temperature (Ref. 115969): 24.6 - 29, mean 27.8 °C (based on 1006 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.00824 - 0.02108), b=3.06 (2.93 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.45 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (30 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .
Prijsklasse (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 34.9 [14.3, 94.5] mg/100g ; Iron = 0.535 [0.301, 0.910] mg/100g ; Protein = 18.8 [15.9, 21.1] % ; Omega3 = 0.16 [0.08, 0.32] g/100g ; Selenium = 32.5 [11.6, 85.5] μg/100g ; VitaminA = 109 [37, 341] μg/100g ; Zinc = 2.52 [0.92, 4.72] mg/100g (wet weight);