Dascyllus aruanus (Linnaeus, 1758)

Whitetail dascyllus
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Dascyllus aruanus   AquaMaps   Data sources: GBIF OBIS
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Image of Dascyllus aruanus (Whitetail dascyllus)
Dascyllus aruanus
Picture by Patzner, R.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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

Issue
Dascyllus abudafur<> former synonym of this species is resurrected with Indian Ocean distribution and D. aruanus restricted to Pacific Ocean. Information herein will be re-assigned accordingly.

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

; marien rifbewoner; standvastig; diepteverspreiding 0 - 20 m (Ref. 9710).   Tropical; 38°N - 35°S, 19°E - 124°W

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Pacific Ocean: region north and east of Lombok Strait to Line, Marquesan and Tuamoto islands, north to southern Japan, south to New Caledonia.

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm 5.0  range ? - ? cm
Max length : 10.0 cm TL mannelijk/geslacht niet bekend; (Ref. 4391); common length : 6.0 cm TL mannelijk/geslacht niet bekend; (Ref. 5450); Maximaal vermelde leeftijd: 6 jaren (Ref. 72479)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 12; Dorsale zachte stralen (totaal): 11-13; Anale stekels 2; Anale zachte stralen: 11 - 13. Color in life white with 3 black bars; a large brown spot on dorsal part of snout and interorbital; lips dusky or white; caudal fin pale; pelvic fins black; pectorals transparent. Margins of preorbital, suborbital, and preoperculum finely serrated (Ref. 2746). Body depth 1.5-1.7 in SL (Ref. 90102).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Territorial, inhabit shallow lagoon and subtidal reef flats. Form large aggregations above staghorn Acropora thickets or in smaller groups above isolated coral heads. Feed on zooplankton, benthic invertebrates, and algae. Males invite females to spawn in their nests; protecting the eggs until they hatch and becoming very aggressive against other fish. Eggs hatch after 3-5 days; pelagic larvae feed on plankton (Ref. 5503). Oviparous, distinct pairing during breeding (Ref. 205). Used in behavioral study. Have been reared in captivity (Ref. 35412). Diurnal species (Ref. 54980, 120737).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Male selects and protects the nest; does the courtship `dance' about 1 m above the nest and escorts the attracted female to the nest site where spawning ensues (Ref. 33146). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Also Ref. 103751.

Voornaamste referentie Upload your references | Referenties | Coördinator : Allen, Gerald R. | Medewerkers

Borsa, P., A. Sembiring, C. Fauvelot and W.-J. Chen, 2014. Resurrection of Indian Ocean humbug damselfish, Dascyllus abudafur (Forsskål) from synonymy with its Pacific Ocean sibling, Dascyllus aruanus (L.). Comptes Rendus Biologies, Elsevier Masson, 337(709-716). (Ref. 119133)

Status op de Rode Lijst van het IUCN (Ref. 120744)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 24.9 - 29.3, mean 28.4 (based on 2883 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02291 (0.01947 - 0.02695), b=2.98 (2.93 - 3.03), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.42 se; Based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (tmax=6; Fec=1,500-2,000).
Kwetsbaarheid (Ref. 59153):  Low to moderate vulnerability (26 of 100) .