Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Doradidae
(Thorny catfishes) > Doradinae
Etymology: Pterodoras: Greek, pteron = wing, fin + Greek, doras = skin (Ref. 45335). More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; pH range: 7.5 - ?; potamodromous (Ref. 51243). Subtropical; 20°C - 24°C (Ref. 2060)
South America: Amazon and Paraná River basins and coastal drainages in Guyana and Suriname.
Length at first maturity / Size / Weight / Age
Maturity: Lm 25.4, range 64 - ? cm
Max length : 70.0 cm TL male/unsexed; (Ref. 37054); max. published weight: 6.5 kg (Ref. 40637)
Nocturnal predator. Occurs in small groups. Feeds mainly on the fruits of Astrocaryum javary (Ref. 9084).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: commercial; aquarium: public aquariums
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.01453 - 0.02739), b=2.99 (2.90 - 3.08), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 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.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (52 of 100) .
Nutrients (Ref. 124155
): Calcium = 68.2 [34.9, 139.2] mg/100g ; Iron = 1.83 [1.10, 2.86] mg/100g ; Protein = 17.4 [16.2, 18.5] % ; Omega3 = 0.371 [0.177, 0.791] g/100g ; Selenium = 40 [16, 95] μg/100g ; VitaminA = 10.7 [3.7, 31.8] μg/100g ; Zinc = 1.17 [0.81, 1.73] mg/100g (wet weight);