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Characiformes (Characins) >
Alestidae (African tetras)
Etymology: Bathyaethiops: Greek, bathys = deep + Greek, Aethiopia, an African country (Ref. 45335); baka: Named after the Baka people, the native hunter-gatherer tribe in southeastern Cameroon, where the species was found; a noun in aposition (Ref. 110423).
Eponymy: This species is named after the Baka people, a native hunter-gatherer tribe in Cameroon. (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique; pH range: 7.1 - 7.1. Tropical; 28°C - ? (Ref. 110423)
Africa: Ngoko River (Sangha drainage, middle Congo River basin) in Cameroon (Ref. 110423).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 2.4 cm SL mâle / non sexé; (Ref. 110423)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 10 - 11; Épines anales: 0; Rayons mous anaux: 21 - 24; Vertèbres: 35 - 37. Diagnosis: Bathyaethiops baka is distinguished from all congeners by an incomplete squamation with the scale cover variably reduced to no pre-dorsal scales, usually no scales on caudal peduncle, and usually a scale-free patch on middle flank at about level of pelvic-fin origin; furthermore distinguished by a unique colour pattern, i.e., a combination of a humeral spot of about pupil-size and the absence of dark vertical bars along midlateral flanks (Ref. 110423). It is difficult to distinguish from juvenile Bathyaethiops caudomaculatus, from which it differs by the usually absence of unicuspid teeth in the second row of lower jaws vs. presence, and usually the absent or rudimentary supraneural between two neural spines directly in front of the first dorsal fin pterygiophore vs. well developed (Ref. 110423).
Body shape (shape guide): fusiform / normal.
Found in the main river channel of Ngoko River, usually in or close to riparian vegetation over a substrate of fine particles and organic material (Ref. 110423).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Moritz, T. and U.K. Schliewen, 2016. Description of two new Bathyaethiops species (Teleostei: Alestidae) from the Congo basin. Zootaxa 4117(4):476-490. (Ref. 110423)
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 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00589 (0.00239 - 0.01452), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |