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Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Imparfinis: Latin, impar = unequal + Greek, finis, pinna = wing, fin (Ref. 45335).
More on author: Lütken.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal; pH range: 6.0 - 7.0; dH range: 15 - ?. Tropical; 24°C - 28°C (Ref. 2059)
South America: Upper São Francisco River basin, Brazil.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm SL mâle / non sexé; (Ref. 27188)
Frequently occur in large rivers with strong currents, in association with Heptapterus longior (Ref. 27188), Pimelodella, Hemiancistrus, Lasiancistrus, Lithoxus, Characidium and Leporinus granti. Are more or less cave-dwellers, their reproduction is seasonal and sex determination type ZZ/ZW (heterogametic female) (Ref. 35381)
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. 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. 36914)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
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=0.00776 (0.00362 - 0.01664), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.0 ±0.42 se; based on food items.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
