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Siluriformes (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Pseudoplatystoma: Greek, pseudes = false + Greek, platys = flat + Greek, stoma = mouth (Ref. 45335).
More on author: Valenciennes.
Issue
We believe based on the original description, plate, and locality that Platystoma truncatum is a synonym of Pseudoplatystoma tigrinum. We have retained the younger name P. tigrinum (Valenciennes, 1840) for purposes of stability, there has been virtually no use of P. truncatum since its original description, thus we treat it as a Nomen oblitum. For reproductive biology and ecology, see Loubens and Panfili (2000).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce; saumâtre démersal; pH range: 6.2 - 7.2; dH range: ? - 20; potamodrome (Ref. 51243). Tropical; 22°C - 26°C (Ref. 12468)
South America: Amazon and Orinoco River basins.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ?, range 99 - ? cm
Max length : 130 cm TL mâle / non sexé; (Ref. 35381); poids max. publié: 17.0 kg (Ref. 35381); âge max. reporté: 18 années (Ref. 34213)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Occurs in estuarine zones, mainly upstream of the first rapids up to the basin's headwaters. Nocturnal species which lives in the main bed of slow or fast zones, as well as in the flooded forests, particularly the juveniles., Opportunistic, piscivorous fish which may feed on crabs and shrimps. At the end of the dry season, they can migrate at the same time as their prey, then return at the end of the rainy season (Ref. 35381). Most important catfish in gill-net fisheries of Guaporé and Mamoré rivers.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Le Bail, P.-Y., P. Keith and P. Planquette, 2000. Atlas des poissons d'eau douce de Guyane. Tome 2, Fascicule II: Siluriformes. Collection Patrimoines Naturels 43(II): 307p. Paris: Publications scientifiques du Muséum national d'Histoire naturelle. (Ref. 35381)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui; Aquarium: Aquariums publics
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00278 - 0.01246), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 4.5 ±0.0 se; based on diet studies.
Résilience (Réf.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (tm=5-8; tmax=18).
Vulnérabilité de la pêche (Ref.
59153): High vulnerability (57 of 100).
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Nutriments (Ref.
124155): Calcium = 39.1 [14.8, 139.0] mg/100g; Iron = 1.57 [0.51, 3.65] mg/100g; Protein = 18.6 [16.9, 20.1] %; Omega3 = 0.152 [0.087, 0.265] g/100g; Selenium = 62.5 [32.3, 128.9] μg/100g; VitaminA = 17.9 [7.5, 44.9] μg/100g; Zinc = 0.759 [0.539, 1.075] mg/100g (wet weight); based on
nutrient studies.
