Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Pomacentridae
(Damselfishes) > Pomacentrinae
Etymology: Pomacentrus: Greek, poma, -atos = cover, operculum + Greek, kentron = sting (Ref. 45335); callainus: Name from Latin word for blue-green, referring to its life colour..
More on author: Randall.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 2 - 6 m (Ref. 124650). Tropical
South Pacific: Tonga and Fiji.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.5 cm SL male/unsexed; (Ref. 54980)
soft rays: 13 - 15;
Vertebrae: 26. This species is distinguished by the following characters: D XIII,13-14 (usually 14); A II,13-
15; pectoral rays 17-19; tubed lateral line scales 15-18 (modally 16); total gill rakers 22-25; sub-orbital scaled, the margin is smooth or rarely with one or two weak serrae; body depth 1.95-2.1 in SL; longest dorsal spine 1.7-2.05 in HL; second anal spine 1.5-1.7 in HL. Colouration: in life, pale blue-green with a wedge-shaped black bar at upper pectoral fin base (Ref. 124650).
Occurs in shallow reefs , close to corals for shelter (Ref. 54980). Life history characteristics for the family specify that this group is oviparous, with 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
Maturity | Reproduction | Spawning | Eggs | Fecundity | 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).
Randall, J.E., 2002. Two new damselfishes of the genus Pomacentrus from the south-west Pacific. aqua, J. Ichthyol. and Aquat. Biol. 5(4):167-176. (Ref. 124650)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 25.3 - 29, mean 27.5 °C (based on 393 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02399 (0.01144 - 0.05029), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.6 ±0.3 se; based on size and trophs of closest relatives
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).
Nutrients (Ref. 124155
): Calcium = 304 [129, 707] mg/100g ; Iron = 1.09 [0.56, 2.21] mg/100g ; Protein = 17.6 [16.2, 19.0] % ; Omega3 = 0.19 [0.08, 0.44] g/100g ; Selenium = 10.3 [3.6, 28.4] μg/100g ; VitaminA = 505 [103, 2,441] μg/100g ; Zinc = 3.33 [1.78, 6.04] mg/100g (wet weight);