Issue
Species-level distinctiveness of Tocantins and Amazonas Megalodoras not investigated.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical; 22°C - 25°C (Ref. 2059)
South America: Amazon, Tocantins and Essequibo River basins.
Length at first maturity / Tamanho / Peso / Idade
Maturity: Lm ?, range 54 - ? cm
Max length : 53.0 cm SL macho/indeterminado; (Ref. 9081); 60.0 cm SL (female); common length : 49.0 cm SL macho/indeterminado; (Ref. 9081); peso máx. Publicado: 2.9 kg (Ref. 9081); peso máx. Publicado: 2.9 kg
Occurs in small groups and occasionally forms schools. Inhabits rivers. Is mainly diurnal. Feeds on the fruits of Licania longipetala and Astrocaryum jauary. Also feeds on pulmonate snails (Ref. 9086).
Life cycle and mating behavior
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435)
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00559 - 0.01790), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nível Trófico (Ref.
69278): 2.7 ±0.39 se; based on food items.
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).