Dascyllus trimaculatus, Threespot dascyllus : fisheries, aquarium

Dascyllus trimaculatus (Rüppell, 1829)

Threespot dascyllus
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Native range | All suitable habitat | Point map | Year 2100
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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.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Strahlenflosser) > Perciformes (Perch-likes) > Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Dascyllus: Greek, daskillys, -on = a kind of fish (Ref. 45335).  More on author: Rüppell.

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

; seewasser riff-verbunden; standorttreu; tiefenbereich 1 - 55 m (Ref. 7247).   Tropical; 32°N - 36°S, 24°E - 128°W

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | 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.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm TL Männchen/unbestimmt; (Ref. 89972)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 12; Rückenflossenweichstrahlen (insgesamt): 14-16; Afterflossenstacheln 2; Afterflossenweichstrahlen: 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).

Biologie     Fachlexikon (Englisch) (z.B. 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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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).

Hauptreferenz Upload your references | Referenzen | Koordinator : Allen, Gerald R. | Partner

Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)

IUCN Rote Liste Status (Ref. 120744)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: weniger kommerziell; Aquarium: Kommerziell
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. 82805):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03467 (0.02149 - 0.05594), b=2.99 (2.85 - 3.13), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  2.8   ±0.10 se; Based on food items.
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (Fec=20,000-25,000).
Verwundbarkeit (Ref. 59153):  Low vulnerability (24 of 100) .
Preiskategorie (Ref. 80766):   Unknown.