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Acanthurus chronixis Randall, 1960

Chronixis surgeonfish
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Acanthurus chronixis
Female picture by Randall, J.E.

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Randall.

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

marin récifal; profondeur 0 - 6 m (Ref. 37792). Tropical; 2°N - 1°N

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Western Pacific: Kapingamarangi Atoll, Caroline Islands. Possibly endemic of that atoll. Reports from other areas are likely misidentifications of the juvenile stages of Acanthurus pyroferus (J.E. Randall, pers. comm.), e.g. from Taiwan (Shao et al., 2008).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm TL mâle / non sexé; (Ref. 37792)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 8; Rayons mous dorsaux (Total) : 26; Épines anales: 3; Rayons mous anaux: 24. Caudal fin lunate. Life colour unknown. Preserved specimen is dark brown with two small oval spots, one above and the other slightly behind the upper end of the gill opening, and a dark brown band at the base of the dorsal fin.

Biologie     Glossaire (ex. epibenthic)

Found over sand and coral bottoms of clear channels (Ref. 9710). Juveniles probably occur on reef flats (Ref. 9710). Rare and not commercial (J.E. Randall, pers. comm.).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur : Randall, John E. | Collaborateurs

Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)

  Vulnérable, voir Liste Rouge IUCN (VU) (D2); Date assessed: 03 May 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: sans intérêt; Aquarium: Commercial
FAO - Publication: search | FishSource |

Plus d'informations

Trophic ecology
Éléments du régime alimentaire
Composition du régime alimentaire
Consommation alimentaire
Food rations
Prédateurs
Ecology
Écologie
Population dynamics
Paramètres de croissance
Max. ages / sizes
Length-weight rel.
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Fréquences de longueurs
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Fécondité
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Œufs
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Distribution
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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: génôme, nucléotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de données nationales | Otolith Atlas of Taiwan Fishes | Aquariums publics | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02344 (0.01118 - 0.04914), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  2.2   ±0.1 se; based on size and trophs of closest relatives
Résilience (Ref. 120179):  Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (18 of 100).