Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water pelagisch; potamodroom (Ref. 51243); diepte ? - 37 m (Ref. 5217). Tropical
South America: Amazon and Orinoco River basins and Atlantic coastal rivers of Guyana and Suriname (Ref. 36506). Reported from Paraná River (Ref. 56308).
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm 25.6 range ? - 30 cm
Max length : 57.5 cm TL mannelijk / geslacht onbekend; (Ref. 5217); common length : 45.0 cm TL mannelijk / geslacht onbekend; (Ref. 5217); max. gepubliceerd gewicht: 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.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van minder commercieel belang
Tools
Speciale rapporten
Download XML
Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00512 - 0.00709), b=3.12 (3.07 - 3.17), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.9 ±0.30 se; based on food items.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.12-0.27).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
Nutrients (Ref.
124155): Calcium = 92 [44, 205] mg/100g; Iron = 1.76 [0.85, 3.58] mg/100g; Protein = 16.7 [15.3, 18.2] %; Omega3 = 0.283 [0.110, 0.710] g/100g; Selenium = 68.4 [26.6, 175.8] μg/100g; VitaminA = 46.7 [15.5, 145.8] μg/100g; Zinc = 1.66 [1.11, 2.49] mg/100g (wet weight); based on
nutrient studies.
