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Characiformes (Characins) >
Acestrorhynchidae (Smallscale pike characins) > Heterocharacinae
Etymology: Gnathocharax: Greek, gnathos = jaw + Greek, charax = a marine fish without identification (Ref. 45335).
More on author: Fowler.
Issue
See Bohlke (1955) for studies of populational variation.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce pélagique; pH range: 5.5 - 7.5; dH range: ? - 20. Tropical; 23°C - 27°C (Ref. 1672)
South America: Amazon and Orinoco River basins.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL mâle / non sexé; (Ref. 36811)
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Lucena, C.A.S. and N.A. Menezes, 2003. Subfamily Characinae (Characins, tetras). p. 200-208. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36811)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; Aquarium: Commercial
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.5 ±0.6 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).