Aphyosemion alpha : aquarium

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Aphyosemion alpha Huber, 1998

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

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Nothobranchiidae (African rivulines)
Etymology: Aphyosemion: Greek, aphye, -es, sardine, anchovy + Greek, semeion = mark, signal (Ref. 45335).

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

; zoet water pelagisch; pH range: 5.7 - ?; standvastig; diepte 0 - ? m. Tropical; 23°C - ?

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

Africa: known from a limited number of localities between Libreville and Cap Esterias in north-western Gabon (Ref. 80395) and Owendo area south of Libreville in Gabon (Ref. 119374).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 80395); 40.0 cm TL (female)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 12-13; Anale stekels 0; Anale zachte stralen: 13 - 15; Wervels: 24 - 25. Diagnosis: This is a fairly large species of the subgenus Chromaphyosemion, larger than all its congeners with the exception of Aphyosemion riggenbachi, which has the most forward placed dorsal fin (Ref. 41203). It is a strictly blue phenotype with a unique red marking on the sides of the body with the exception of the gill lids, with two conspicuous, mood-dependent dark longitudinal bands, with a red dotted dorsal fin, a flamed caudal fin and an "undrawn" anal fin, except for a thin red submarginal and white marginal band, with longer trapezoidal vertical unpaired fins and a caudal fin with short extracts in the males; the female also shows the alpha-shaped mark, with striking, dark bandages and an anal fin without spots, but without a dark mesh pattern around the scales on the sides of the body (Ref. 41203).

Biologie     Verklarende woordenlijst (bv. epibenthic)

This species is found in clear creeks under forest cover, usually over a sandy soil, in the coastal plain (Ref. 80395).

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

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

van der Zee, J.R., T. Woeltjes and R.H. Wildekamp, 2008. Aplocheilidae Bleeker, 1860. p. 80-240. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) Poissons d'eaux douces et saumâtres de basse Guinée, ouest de l'Afrique centrale/The fresh and brackish water fishes of Lower Guinea, west-central Africa. Volume 2. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 603 p. (Ref. 80395)

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

  Bedreigd (EN) (B1ab(iii)); Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van geen belang; Aquarium: Potentieel
FAO - Publication: search | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00449 - 0.02680), b=2.92 (2.71 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.7   ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (40 of 100).