Taxonomic Remarks
Species-level distinctiveness of Tocantins and Amazonas Megalodoras not investigated.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar dasar (demersal). Tropical; 22°C - 25°C (Ref. 2059)
South America: Amazon, Tocantins and Essequibo River basins.
Panjang pada saat jatuh tempo pertama / Ukuran / Berat / umur
Kematangan: Lm ?, range 54 - ? cm
Max length : 53.0 cm SL jantan/; (Ref. 9081); 60.0 cm SL (female); common length : 49.0 cm SL jantan/; (Ref. 9081); Berat maksimum terpublikasi: 2.9 kg (Ref. 9081); Berat maksimum terpublikasi: 2.9 kg
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
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).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
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 IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00716 - 0.02114), b=3.00 (2.85 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Tingkat Trofik (Acuan
69278): 2.7 ±0.39 se; based on food items.
Daya lenting (Acuan
120179): sedang, Waktu penggandaan populasi minimum 1.4 - 4.4 tahun (Preliminary K or Fecundity.).
Kerentanan Penangkapan Ikan (Ref.
59153): Moderate to high vulnerability (49 of 100).
🛈