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

marino associati a barriera corallina; non migratori; distribuzione batimetrica 6 - 80 m (Ref. 9334), usually 6 - 20 m (Ref. 6852). Tropical; 33°N - 18°S

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

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

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.4 cm TL maschio/sesso non determinato; (Ref. 59088)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 12; Raggi dorsali molli (totale) : 12 - 13; Spine anali: 2; Raggi anali molli: 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 | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

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).

Main reference Upload your references | Bibliografia | Coordinatore : Allen, Gerald R. | Collaboratori

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

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 27 May 2007

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

Informazioni ulteriori

Trophic ecology
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Fonti Internet

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).

Trophic level (Ref. 69278): 3.4 ±0.45 se; based on food items.

Resilienza (Ref. 120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).

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

Azurina atrilobata (Gill, 1862)