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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Nothobranchiidae (African rivulines)
Etymology: Aphyosemion: Greek, aphye, -es, sardine, anchovy + Greek, semeion = mark, signal (Ref. 45335); aurantiacum: The specific epithet refers to the main colour of this species, dark orange (Ref. 119374).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce pélagique. Tropical
Africa: Wézé River basin in Gabon (Ref. 119374).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 3.3 cm SL mâle / non sexé; (Ref. 119374)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 10 - 13; Épines anales: 0; Rayons mous anaux: 12 - 15. Diagnosis: This species differs from all other species in the Aphyosemion alpha group through combination of following features: head orange, flanks beige, ventral region orange vs. never the same colour pattern, orange anal fin with no punctuation vs. blue-orange, purplish-blue or orange with punctuation (Ref. 119374). it is distinguished from all other species of the subgenus Chromaphyosemion by an alpha-shaped drawing in pre- and post-opercular region vs. no alpha-shaped drawing, only some red macules (Ref. 119374).
Body shape (shape guide): fusiform / normal.
This species lives only in very small forest streams and water holes, often with a bottom consisting of roots and dead leaves, where it can be very abundant (Ref. 119374).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Agnèse, J.-F., L. Chirio, O. Legros, R. Oslisly and H.M. Bhé, 2018. Unexpected discovery of six new species of Aphyosemion (Cyprinodontiformes, Aplocheilidae) in the Wonga-Wongué Presidential Reserve in Gabon. Eur. J. Taxon. 471:1-28. (Ref. 119374)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00603 (0.00251 - 0.01446), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |