Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal; potamódromo (Ref. 51243). Tropical
South America: Amazon River basin and estuary near Cayenne, French Guiana.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL macho/indeterminado; (Ref. 35381); peso máx. publicado: 15.0 kg (Ref. 35381)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 1; Raios dorsais (total) : 6; Raios anais : 13 - 14. Body elongated, without scales, almost covered with bony plaque, ventrally flattened in adults. Terminal mouth has three pairs of barbels. Lower jaw is shorter than the upper jaw. Eyes small (Ref. 35381).
Feeds on fruits when the forests are flooded and on the blades of macrophytes. Acts as seed dispersal agent (Ref. 6868). Reproduction occurs once a year and juveniles are often seen in large numbers in the estuary of the Amazon, in the region of Mario (Ref. 35381).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Sabaj, M.H. and C.J. Ferraris Jr., 2003. Doradidae (Thorny catfishes). p. 456-469. 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. 37054)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: pouco comercial; Aquário: Espécies comerciais
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00437 - 0.01992), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 2.0 ±0.00 se; based on food items.
Resiliência (Ref.
120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).