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Dascyllus trimaculatus (Rüppell, 1829)

Threespot dascyllus
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Native range | All suitable habitat | Point map | Year 2050
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Dascyllus trimaculatus   AquaMaps   Data sources: GBIF OBIS
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Image of Dascyllus trimaculatus (Threespot dascyllus)
Dascyllus trimaculatus
Picture by Randall, J.E.


New Caledonia country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref: Kerr, V.C., 2013
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in the north lagoon and St. Vincent Bay (Ref. 9070). Recorded from the Chesterfield Is. (Ref. 11897) and Ouvéa Atoll, Loyalty Is. (Ref. 13236). Also Ref. 7247, 52522.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nc.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Wantiez, L., 1996
National Database:

Common names from other countries

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Chrominae
Etymology: Dascyllus: Greek, daskillys, -on = a kind of fish (Ref. 45335).
  More on author: Rüppell.

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

marino asociado a arrecife; no migratorio; rango de profundidad 0 - 55 m (Ref. 7247).   Tropical; 32°N - 36°S, 24°E - 128°W

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Indo-Pacific: Red Sea and East Africa to the Line and Pitcairn islands, north to southern Japan, south to Sydney, Australia. Not found in the Hawaiian and Marquesan islands.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm TL macho / no sexado; (Ref. 89972); peso máximo publicado: 45.21 g (Ref. 126022)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 12; Radios blandos dorsales (total) : 14 - 16; Espinas anales: 2; Radios blandos anales: 14 - 15. Juveniles overall black with scale centers bluish; white blotch on forehead and upper sides; all fins black except the transparent pectoral and outer portion of soft dorsal rays. Geographic and behavioral color of adults variable; no spot on forehead; spot on upper sides very reduced; head and fins normally black; scales with black margins. Margins of preorbital, suborbital and preoperculum finely serrated (Ref. 2746). Nuptial fish generally paler color. Body depth 1.4-1.6 in SL (Ref. 90102).

Biología     Glosario (por ej. epibenthic)

Adults inhabit coral and rocky reefs, juveniles often commensal with large sea anemones, sea urchins, or small coral heads (Ref. 4391, 48636). They occur in small to large aggregations. Stomach contents include algae, copepods, and other planktonic crustaceans (Ref. 7247). 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). Diurnal species (Ref. 54980; 120737). Minimum depth reported taken from Ref. 128797.

Life cycle and mating behavior Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva

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). Courtship characterized by male 'signal-jumping'. Captive pair reported to spawn thrice monthly with a total of 17 over a 7-month period (Ref. 2856). While protogyny was originally proposed for this species, recent studies confirmed gonochorism in the form of non-functional hermaphroditism (Ref. 103751).

Main reference Upload your references | Referencias | Coordinador : Allen, Gerald R. | Colaboradores

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: 23 September 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesquerías: escaso valor comercial; Acuario: Comercial
FAO(Publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 24.6 - 29, mean 28 (based on 1240 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03467 (0.02149 - 0.05594), b=2.93 (2.79 - 3.07), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nivel trófico (Ref. 69278):  3.0   ±0.24 se; based on food items.
Resiliencia (Ref. 120179):  Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Fec=20,000-25,000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Unknown.