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Chlorurus japanensis (Bloch, 1789)

Palecheek parrotfish
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Native range | All suitable habitat | Point map | Year 2050
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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

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | 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 Ecologia

marino associati a barriera corallina; distribuzione batimetrica 0 - 20 m (Ref. 9710).   Tropical; 30°N - 24°S, 102°E - 153°W

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

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

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 56.2 cm FL maschio/sesso non determinato; (Ref. 125599); peso massimo pubblicato: 2.2 kg (Ref. 125599)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 9; Raggi dorsali molli (totale) : 10; Spine anali: 3; Raggi anali molli: 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).

Biologia     Glossario (es. 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 | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

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

Main reference Upload your references | Bibliografia | Coordinatore : Westneat, Mark | Collaboratori

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 Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 16 September 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesca: commerciale; Acquario: Commerciale
FAO(Publication : search) | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori
Ecology
Ecologia
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Riproduzione
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali
Distribution
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
BRUVS - Videos
Anatomy
Gill areas
Cervelli
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Suoni dei Pesci
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetica
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Profili di acquacoltura
Varietà
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaboratori
References
Bibliografia

Strumenti

Special reports

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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.
Resilienza (Ref. 120179):  Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (45 of 100).
Price category (Ref. 80766):   High.