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Prognathodes dichrous (Günther, 1869)

Bicolor butterflyfish
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Prognathodes dichrous
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Ascension Island country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Lubbock, R., 1980
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: One specimen collected from Grattan Bank (Ref. 57925). Usually found in pairs in rocky areas, especially near caves or drop-offs from 5-50 m depth (Ref. 86997). Also Ref. 123408, 6709, 5288, 4537.
CLRef. 86997 (Lubbock, 1980).

National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sh.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Wirtz, P., J. Bingeman, J. Bingeman, R. Fricke, T.J. Hook and J. Young, 2017
National Database:

Common names from other countries

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Chaetodontidae (Butterflyfishes)
Etymology: Prognathodes: Greek, pro = first, in front of + Greek, gnathos = jaw (Ref. 45335).
  More on author: Günther.

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

marien rifbewoner; diepte 3 - 120 m (Ref. 57925), usually 15 - 35 m (Ref. 47838).   Tropical

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Southeast Atlantic: Saint Helena and Ascension islands.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL mannelijk / geslacht onbekend; (Ref. 4858)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 12; Dorsale zachte stralen (totaal): 19; Anale stekels 3; Anale zachte stralen: 15

Biologie     Verklarende woordenlijst (bv. epibenthic)

Occasionally encountered in shallower water in caves or at the bases of overhangs (Ref. 5288). Also occurs on seamounts (Ref. 057925). Usually occur in pairs, which browse over the rocky substratum in search of benthic invertebrates. Unknown to marine aquarium enthusiasts (Ref. 4858). Oviparous (Ref. 205). Form pairs during breeding (Ref. 205).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Form pairs during breeding (Ref. 205). Monogamous mating is observed as both obligate and social (Ref. 52884).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Maugé, L.A., 1990. Chaetodontidae. p. 837-840. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 6943)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 06 October 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless




Gebruik door de mens

Aquarium: Commercieel
FAO(Publication : search) | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02239 (0.01117 - 0.04486), b=3.02 (2.85 - 3.19), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.5   ±0.37 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).