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Azurina elerae (Fowler & Bean, 1928)

Twinspot chromis
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Azurina elerae
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Christmas Island (AU) country information

Common names: Twinspot chromis
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/kt.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Allen, G.R. and R.C. Steene, 1988
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 authors: Fowler & Bean.

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

Marine; reef-associated; non-migratory; depth range 12 - 70 m (Ref. 7247).   Tropical; 25°N - 25°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific: Maldive Island and east to Fiji and Island of Micronesia (except Marshall Is,); north to Taiwan; south to the Philippines and Australia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref. 559)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 12; Dorsal soft rays (total): 11 - 12; Anal spines: 2; Anal soft rays: 10 - 11. Color of body grayish brown; edges of scales orangish or bluish; dorsal and anal fins with whitish spot on its posterior half; anus region blackish; upper base of pectoral with a blackish spot. Opercular margin serrate. 15-17 tubed lateral line scales. Eyes large (Ref. 2693). Body depth 1.8-1.9 in SL (Ref. 90102).

Biology     Glossary (e.g. epibenthic)

Adults inhabit cave openings and crevices of steep outer reef slopes in small aggregations (Ref. 9710, 48636). May also be seen singly with black corals, large sponges or gorgonian fans. Diurnal species (Ref. 54980; 113699). 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). Minimum depth reported taken from Ref. 48636.

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

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 | References | Coordinator : Allen, Gerald R. | Collaborators

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: 17 November 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; aquarium: commercial
FAO(Publication : search) | FishSource |

More information

Trophic ecology
Food items
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Food consumptions
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Ecology
Ecology
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Length-weight rel.
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Estimates based on models

Preferred temperature (Ref. 115969): 26 - 28.9, mean 27.7 (based on 328 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00579 - 0.02736), b=3.03 (2.84 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.7   ±0.29 se; based on food items.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Unknown.