Chlorurus microrhinos (Bleeker, 1854)
Steephead parrots
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| Chlorurus microrhinos AquaMaps Data sources: GBIF OBIS |
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Chlorurus microrhinos
Picture by Randall, J.E.
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Picture by Randall, J.E.
Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scaridae (Parrotfishes) > Scarinae
Etymology: Chlorurus: Greek, chloros = green + Greek oura = tail (Ref. 45335).
Etymology: Chlorurus: Greek, chloros = green + Greek oura = tail (Ref. 45335).
Environment / Climate / Range Ecology
Marine; reef-associated; depth range 1 - 35 m (Ref. 37816). Tropical; 30°N - 32°S
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 70.0 cm TL male/unsexed; (Ref. 2334); common length : 49.0 cm SL male/unsexed; (Ref. 37816); common length :40 cm SL (female); max. published weight: 5.4 kg (Ref. 37816)
Max length : 70.0 cm TL male/unsexed; (Ref. 2334); common length : 49.0 cm SL male/unsexed; (Ref. 37816); common length :40 cm SL (female); max. published weight: 5.4 kg (Ref. 37816)
Short description Morphology | Morphometrics
Dorsal
spines
(total): 9;
Dorsal
soft rays
(total): 10;
Anal
spines: 3;
Anal
soft rays: 9. Juveniles below about 8 cm are black with several horizontal white streaks. Larger ones up to about 20 cm uniformly dark, greenish brown, slowly becoming blue with age. Blue streak and patch extending behind the corner of the mouth of large males often quite brilliant. Uniformly yellowish-tan individuals rare. Caudal fin lunate in large terminal males. Scale rows on cheek 3. Median predorsal scales 3-4 (Ref. 37816). Males develop large hump on head and appear blunt-headed (Ref. 48636).
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri
Pacific Ocean: Bali and the Philippines to the Line and Pitcairn islands, north to the Ryukyu Islands, south to Rottnest Island, Lord Howe Island and Rapa Island (Ref. 37816). The species complex comprise of Chlorurus gibbus in the Red Sea, Chlorurus strongylocephalus in the Indian Ocean and Chlorurus microrhinos in the west-central Pacific.
Occurs in lagoon and seaward reefs. Juveniles generally solitary; large adults often school together.
Main reference
Upload your references | References | Coordinator : Westneat, Mark | Collaborators
Parenti, P. and J.E. Randall, 2000. An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (68):1-97.
IUCN Red List Status (Ref. 90363)
Threat to humans
Reports of ciguatera poisoning (Ref. 4690)
Human uses
FAO(Publication : search) | FisheriesWiki | Sea Around Us
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Synonyms
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Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
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Internet sources
BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01746 (-0.08183 - 0.11674), b=3.05 (2.98 - 3.11), based on LWR estimates for species & family-BS (Ref. 93245).
Trophic Level (Ref. 69278): 2.0 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278): Low, minimum population doubling time 4.5 - 14 years (tmax=14; k=0.22).
Vulnerability (Ref. 59153): Moderate vulnerability (41 of 100) .