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Chlorurus japanensis (Bloch, 1789)

Palecheek parrotfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Chlorurus japanensis   AquaMaps   Data sources: GBIF OBIS
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Image of Chlorurus japanensis (Palecheek parrotfish)
Chlorurus japanensis
Male picture by Randall, J.E.


Philippines country information

Common names: Aliyakyak, Angol, Asul
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Lieske, E. and R. Myers, 1994
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Calatgan, Batangas (Ref. 107853), Puerto Princesa, Palawan and San Vicente, N. Luzon (Ref. 58652). Also Ref. 1602, 48613, 53416, 121724.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Aliño, P. and E.D. Gomez, 1991
National Database:

Common names from other countries

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

> Eupercaria/misc (Various families in series Eupercaria) > Scaridae (Parrotfishes) > Scarinae
Etymology: Chlorurus: Greek, chloros = green + Greek oura = tail (Ref. 45335).
  More on author: Bloch.

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

seewasser riff-verbunden; tiefenbereich 0 - 20 m (Ref. 9710).   Tropical; 30°N - 24°S, 102°E - 153°W

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

Pacific Ocean: Ryukyu Islands to Australia. Recently reported from Tonga (Ref. 53797).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 56.2 cm FL Männchen/unbestimmt; (Ref. 125599); max. veröff. Gewicht: 2.2 kg (Ref. 125599)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 10; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 9. This species is further distinguished by having the following characters: median predorsal scales 4; scale rows on cheek 2; conical teeth absent on side of lower dental plate, 0-2 on upper plate of initial phase and often 2 on terminal male; lips slightly covers the dental plates; caudal fin in subadult slightly rounded to truncate and slightly emarginate in terminal male. Colour of male distinctly bicolored, with purple-brown anterior, and oblique division to pale yellow posterior; female entirely dark brown with red-orange tail (Ref. 9793, 90102).

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

Inhabits seaward coral (Ref. 58652) and rocky reefs (Ref. 9710); inner reefs with rich coral habitat (Ref. 48636). Feeds on benthic algae (Ref. 3488). May occur in small groups of 1 TP with 1 to 3 IPs (Ref. 9793). Caught mainly with traps, nets and other types of artisanal gear. Minimum depth reported taken from Ref. 128797.

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

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

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

Randall, J.E. and J.H. Choat, 1980. Two new parrotfishes of the genus Scarus from the Central and South Pacific, with further examples of sexual dichromatism. Zool. J. Linn. Soc. 70:383-419. (Ref. 2689)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 16 September 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless




Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: Kommerziell
FAO(Publication : search) | FishSource |

Mehr Information

Trophic ecology
Nahrungsorganismen
Diet compositions
Food consumptions
Food rations
Räuber
Ecology
Ökologie
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversions
Recruitments
Abundances
Life cycle
Fortpflanzung
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larven
Larven Pop.Dyn.
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Anatomy
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Gehirngröße
Otoliths
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Oxygen consumptions
Swimming type
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Visual pigment(s)
Fisch Laute
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetik
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Estimates based on models

Preferred temperature (Ref. 115969): 25 - 29.3, mean 28.5 (based on 2061 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00710 - 0.02233), b=3.03 (2.88 - 3.18), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  2.0   ±0.00 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (45 of 100).
Preiskategorie (Ref. 80766):   High.