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Azurina eupalama  Heller & Snodgrass, 1903

Galapagos damsel
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Azurina eupalama   AquaMaps   Data sources: GBIF OBIS
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Image of Azurina eupalama (Galapagos damsel)
Azurina eupalama
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Perciformes (Perch-likes) > Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Azurina: Latin, azurinus = blue, pale blue; the name of Leuciscus caeruleus, blue Roach; 1600 (Ref. 45335).

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

; marin récifal; non migrateur; profondeur 5 - 30 m (Ref. 28023).   Tropical; 1°N - 1°S

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

Eastern Central Pacific: Cocos and the Galapagos Islands. This species has not been seen since the 1982/83 El Niño event (Ref. 27438).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL mâle / non sexé; (Ref. 28023)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 13; Rayons mous dorsaux (Total): 10-11; Épines anales 2; Rayons mous anaux: 11 - 12. Color olive-gray with a light-blue tint, silver on the ventral side; snout dusky, a black spot at pectoral fin base; pale gray pelvic and anal fins, dusky dorsal fin. Body more slender compared to other Galápagos damselfish. Preorbital bone smooth without a notchlike projection; edge of preopercle irregular, weakly serrate. Lateral line complete and conspicuous (Ref. 28023).

Biologie     Glossaire (ex. epibenthic)

Apparently this species prefers open water near drop-offs, although individuals are found in a variety of inshore habitats to depths of 30 meters. It is not a common species and resident aggregations have strong preferences for specific sites. Feeds mainly on plankton in the water column, usually in heterotypic aggregations with Chromis atrilobata. 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). Prior to the 1982-83 El Niño, a small aggregation frequented the shallow water just west of Pinnacle Rock at Bartolomé. But despite intensive observations during the decade after this event, no records of this species were made (Ref. 28023).

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

Grove, J.S. and R.J. Lavenberg, 1997. The fishes of the Galápagos Islands. Stanford University Press, Stanford, 863 p. (Ref. 28023)

Statut dans la liste rouge de l'IUCN (Ref. 115185)

  Niveau de menace critique (CR) (B1ab(i,ii,iv,v)+2ab(i,ii,iv,v))

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 23.7 - 24.5, mean 23.9 (based on 9 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00671 - 0.03258), b=2.98 (2.79 - 3.17), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.4   ±0.45 se; Based on food items.
Résilience (Ref. 69278):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Vulnérabilité (Ref. 59153):  Low to moderate vulnerability (32 of 100) .