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Characiformes (Characins) >
Alestidae (African tetras)
Etymology: jackiae: Name 'Brachyalestes jackiae' in honor of Jackie Black for her support and encouragement to MLJS and her Congolese colleagues over many years of work in the Congo basin.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce pélagique. Tropical
Africa: DR Congo.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 11.4 cm SL mâle / non sexé; (Ref. 131251)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 8; Rayons mous anaux: 11 - 13; Vertèbres: 36 - 38. This species is distinguished from its congeners by the following set of characters: presence of a conspicuous midlateral stripe; midlateral stripe diffuse narrow or broad, straight band of dark pigmentation passing from the caudal blotch to midbody or extending to the opercle; strongly demarcated and distinctively club-shaped anteriorly; presence of an anterior extension of the club-shaped midlateral stripe in males; absence of humeral spot; 21-23 lateral line scales; caudal peduncle depth 9.0-10.6% of SL; absence of an anterior extension of a club-shaped midlateral stripe in males; absence of a humeral spot; pored lateral line scales 21-23; presence of a dark club-shaped midlateral stripe; and absence of dark blotches (Ref. 131251).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Stiassny, M.L.J., C. Keane, J.J.M.M. Mbimbi and B.F. Melo, 2023. Phylogenomics and morphology of the African fish genus Brycinus with revalidation of Brachyalestes and description of a new species from the Congo basin (Teleostei: Alestidae). Ichthyol. Herpetol. 111(4):597-611. (Ref. 131251)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
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Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00491 - 0.02339), b=3.02 (2.84 - 3.20), 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
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).
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