Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical
South America: Bolivia.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 8.1 cm SL mâle / non sexé; (Ref. 85819); 3.4 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 7 - 8; Rayons mous anaux: 15 - 19; Vertèbres: 39. This species is distinguished from most congeners, except H. mikrostiktos, H. paez, H. tridens, and H. virolinica, by the number of branched anal-fin rays 15-19 (vs. 20-34); Hemibrycon beni differs from these species by the number of lateral line scales 44-53 (vs. 40-42, 39-42, 39, and 40-44, respectively). H. beni differs from H. virolinica by the number of predorsal scales 17-20 (vs. 10-15). H. beni when compared with H. helleri, overlap somewhat with branched anal-fin ray counts 15-19 (vs. 19-23 for the latter), but can be distinguished from each other by the size of humeral spot 3-4 horizontal series of scales and the total number of vertebrae 38-39 in H. beni (vs. 7-8 in horizontal series of scales and 41-43 vertebrae, respectively for H. helleri) (Ref. 85819).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Bertaco, V.A. and L.R. Malabarba, 2010. A review of the Cis-Andean species of Hemibrycon Günther (Teleostei: Characiformes: Characidae: Stevardiinae), with description of two new species. Neotrop. Ichthyol. 8(4):737-770. (Ref. 85819)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00443 - 0.02057), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
