You can sponsor this page

Chlorurus microrhinos  (Bleeker, 1854)

Steephead parrots
Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Chlorurus microrhinos   AquaMaps   Data sources: GBIF OBIS
Upload your photos and videos
Pictures | Videos     Google image
Image of Chlorurus microrhinos (Steephead parrots)
Chlorurus microrhinos
Picture by Randall, J.E.


Australia country information

Common names: Blunt-head parrotfish, Pacific steephead parrotfish, Steephead parrotfish
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported from the Territory of Ashmore and Cartier Islands (Ref. 75154). Also known from Shark Bay and Lord Howe Is. (Ref. 1602). Also Ref. 2334, 2689, 8879, 37816.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: https://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Hoese, D.F., D.J. Bray, J.R. Paxton and G.R. Allen, 2006
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scaridae (Parrotfishes) > Scarinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Main reference

Size / Weight / Age

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)

Environment

Marine; reef-associated; depth range 1 - 50 m (Ref. 90102), usually 1 - 15 m (Ref. 89972)

Climate / Range

Tropical, preferred ?; 30°N - 32°S

Distribution

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.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

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).

Biology     Glossary (e.g. epibenthic)

Occurs in lagoon and seaward reefs. Juveniles generally solitary; large adults often school together. Feeds on benthic algae (Ref. 89972).

IUCN Red List Status (Ref. 90363)

Threat to humans

  Reports of ciguatera poisoning (Ref. 4690)



Human uses

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Download XML

Internet sources

BHL | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | Sea Around Us | SeaLifeBase | Tree of Life | uBio | uBio RSS | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record | Fishtrace

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
0

Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (tmax=14; k=0.22)

Vulnerability (Ref. 59153)
Moderate vulnerability (37 of 100)
Price category (Ref. 80766)
High