Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Dascyllus: Greek, daskillys, -on = a kind of fish (Ref. 45335). More on author: Bleeker.
Environment / Climate / Range
Ecology
Marine; reef-associated; non-migratory; depth range 1 - 68 m (Ref. 37816). Tropical, preferred ?; 35°N - 25°S, 104°E - 173°W
Western Pacific: Sumatra to Vanuatu, north to the Ryukyu Islands, south to New Caledonia. Recently recorded from Tonga (Ref. 53797).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm TL male/unsexed; (Ref. 9710)
Dorsal
spines
(total): 12;
Dorsal
soft rays
(total): 12-13;
Anal
spines: 2;
Anal
soft rays: 12 - 13. Color in life white with 3 black bars; has a black area over the outer two-thirds of the tail, which distinguishes it from D. aruanus; pelvic fins black; pectoral fins transparent. Tubed lateral lines scales 16 to 17. Margins of preorbital, suborbital, and preoperculum finely serrated (Ref. 2746). Body depth 1.5-1.7 in SL (Ref. 90102).
Schooling species, adults inhabit sheltered lagoons, harbors and inlets. Also in somewhat open substrates with outcrops of Acropora corals (Ref. 48636). Often associated with small coral heads. Feed on a variety of plankton, including larval shrimps and crabs, algae, ostracods, amphipods, pelagic tunicates, copepods, and fish eggs. 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
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).
Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Aquarium: commercial
More information
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02239 (0.01068 - 0.04693), b=2.99 (2.81 - 3.17), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.0 ±0.36 se; Based on food items.
Resilience (Ref.
69278): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Low vulnerability (16 of 100) .