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Siluriformes (Catfish) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Hypophthalmus: Greek, hypo = under + Greek, ophthalmos = eye (Ref. 45335). More on author: Spix, Agassiz.
Môi trường / Khí hậu / Phạm vi
Sinh thái học
; Nước ngọt Tầng nổi; di cư trong nước ngọt (Ref. 51243); Mức độ sâu ? - 37 m (Ref. 5217). Tropical, preferred ?
South America: Amazon and Orinoco River basins and Atlantic coastal rivers of Guyana and Suriname (Ref. 36506). Reported from Paraná River (Ref. 56308).
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm 25.6  range ? - 30 cm
Max length : 57.5 cm TL con đực/không giới tính; (Ref. 5217); common length : 45.0 cm TL con đực/không giới tính; (Ref. 5217); Khối lượng cực đại được công bố: 1.3 kg (Ref. 5217)
Pelagic species which lives in schools near the surface of the water (Ref. 35381). Found over soft muddy bottoms. Has no teeth in its jaws but possesses many long gill rakers that are used as a sieve for feeding on planktonic crustaceans like cladocerans, copepods and ostracods (Ref. 35381, 6868). Also feeds on debris, other plankton (Ref. 35381). Appears to follow the plankton's vertical movements during the day. Ovaries start to develop I November when the water level rises. Fractional spawning occurs between February and April. The female lays down 50,000 to 100,000 eggs according to its weight. Juveniles inhabit the lower part of streams in estuaries, adult are found more upstream (Ref. 35381). Marketed fresh and salted.
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Cervigón, F., R. Cipriani, W. Fischer, L. Garibaldi, M. Hendrickx, A.J. Lemus, R. Márquez, J.M. Poutiers, G. Robaina and B. Rodriguez, 1992. Fichas FAO de identificación de especies para los fines de la pesca. Guía de campo de las especies comerciales marinas y de aquas salobres de la costa septentrional de Sur América. FAO, Rome. 513 p. Preparado con el financiamento de la Comisión de Comunidades Europeas y de NORAD. (Ref. 5217)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
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