Galapagos Islands country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref: Humann, P. and N. Deloach, 1993
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Less frequently seen during the 1982-83 El Niño (Ref. 9405). Found in Isabela and Fernandina Islands (Ref. 41880). Also Ref. 9334. In range Ref. 5592.
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Humann, P. and N. Deloach, 1993
National Database:

Common names from other countries

Castañeta cola de tijera, Castañuela, Castañeta, ... more

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

> Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Chrominae
Etymology: Azurina: Latin, azurinus = blue, pale blue; the name of Leuciscus caeruleus, blue Roach; 1600 (Ref. 45335).
More on author: Gill.

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

marin récifal; non migrateur; profondeur 6 - 80 m (Ref. 9334), usually 6 - 20 m (Ref. 6852). Tropical; 33°N - 18°S

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

Eastern Pacific: northern Gulf of California to northern Peru, including the Galapagos and Cocos islands.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 13.4 cm TL mâle / non sexé; (Ref. 59088)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 12; Rayons mous dorsaux (Total) : 12 - 13; Épines anales: 2; Rayons mous anaux: 10 - 12. Brown with a prominent black spot on the base of the pectoral fin. Fins with thin light blue or white margin.

Adults inhabit coral or rocky reefs (Ref. 9334). They aggregate in large numbers in open water above reefs and feed on zooplankton. Not strongly territorial as other damselfishes in the area. They become almost invisible in the darkness of deep water except for its brilliant post-dorsal white spot which gives the illusion of glowing in the dark. Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).

Référence principale Upload your references | Références | Coordinateur : Allen, Gerald R. | Collaborateurs

Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 27 May 2007

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO(Publication : search) | FishSource |

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Ecology
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Population dynamics
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Estimates based on models

Preferred temperature (Ref. 115969): 21.2 - 28.5, mean 25.9 (based on 40 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01288 (0.00713 - 0.02327), b=3.10 (2.93 - 3.27), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Niveau trophique (Ref. 69278): 3.4 ±0.45 se; based on food items.

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Azurina atrilobata (Gill, 1862)