Environment: milieu / climate zone / depth range / distribution range
; air tawar bentopelagis. Tropical; 24°C - 30°C (Ref. 1672)
South America: Amazon River basin, Rupununi and Oyapock Rivers.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL jantan/; (Ref. 50892); Berat maksimum terpublikasi: 6.0 kg (Ref. 72380)
Body covered with very big scales; dorsal and anal fins almost fused with the caudal fin; 2 barbels at the extremity of the lower jaw; adult silvery, juvenile with blue glints and a yellow-orange bar (Ref. 12225).
Is an omnivore with a tendency to feed on fish at the surface. The superior position of the mouth allows it to capture its prey while swimming from below. Also jumps out of the water to feed on large insects (Coleoptera; Ref. 27548). It is capable of adapting to environments with low oxygen levels (Ref. 12225).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
The male carries eggs, larvae and early juveniles (alevinos) in his mouth (Ref. 1672), which lasts for nearly six weeks (Ref. 102836).
Ferraris, C.J. Jr., 2003. Osteoglossidae (Arowanas). p. 30. 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. 50892)
Status IUCN Red List (Ref. 120744)
CITES (Ref. 118484)
ancaman kepada manusia
Perikanan: komersial; Ikan buruan: ya; Akuarium: Komersial
muat turun XML
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.7656 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00139 - 0.00949), b=3.13 (2.90 - 3.36), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.48 se; Based on food items.
keancaman (Ref. 59153
): Moderate vulnerability (39 of 100) .