Taxonomic Remarks
Specimens from Guyana and Suriname tentatively referred to P. granulosus. Species-level distinctiveness of Paraná and Amazonas Pterodoras not investigated.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar dasar (demersal); pH range: 7.5 - ?; potamodromous (Ref. 138143). Subtropical; 20°C - 24°C (Ref. 2060)
South America: Amazon and Paraná River basins and coastal drainages in Guyana and Suriname.
Panjang pada saat jatuh tempo pertama / Ukuran / Berat / umur
Kematangan: Lm 25.4, range 64 - ? cm
Max length : 68.0 cm SL jantan/; (Ref. 125983); 90.1 cm SL (female); Berat maksimum terpublikasi: 7.5 kg (Ref. 125983); Berat maksimum terpublikasi: 7.5 kg
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Nocturnal predators. Adults occur in small groups. They feed mainly on the fruits of Astrocaryum javary (Ref. 9084).
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; Akuarium: Akuarium publik
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=0.02344 (0.01787 - 0.03076), b=2.97 (2.89 - 3.05), in cm total length, based on LWR estimates for this species (Ref.
93245).
Tingkat Trofik (Acuan
69278): 2.6 ±0.29 se; based on food items.
Generation time: 6.1 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Daya lenting (Acuan
120179): sedang, Waktu penggandaan populasi minimum 1.4 - 4.4 tahun (K=0.18).
Kerentanan Penangkapan Ikan (Ref.
59153): High vulnerability (55 of 100).
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Nutrisi (Ref.
124155): Calcium = 56.6 [28.9, 133.9] mg/100g; Iron = 1.37 [0.78, 2.37] mg/100g; Protein = 17.6 [16.4, 18.8] %; Omega3 = 0.561 [0.217, 1.476] g/100g; Selenium = 34.3 [14.6, 75.2] μg/100g; VitaminA = 15.2 [5.2, 42.0] μg/100g; Zinc = 1.1 [0.7, 1.6] mg/100g (wet weight);