Taxonomic Remarks
No recent work; see Eigenmann & Eigenmann (1889:105) for description and key of identification; Géry (1977: 103) for description in key.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water pelagisch; pH range: 5.6 - 7.8; dH range: ? - 30. Subtropical; 23°C - 27°C (Ref. 1672)
Central and South America: São Francisco, Amazon, Paraná, Orinoco and Magdalena River basins, and coastal rivers in Guyana, Suriname and French Guiana.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturiteit: Lm 16.5  range ? - ? cm
Max length : 28.5 cm SL mannelijk / geslacht onbekend; (Ref. 121647); max. gepubliceerd gewicht: 520.00 g (Ref. 121647)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Opercular ocellus present.
Body shape (shape guide): elongated.
Obligate air-breathing (Ref. 126274); Inhabits swamps and creeks with little current (Ref. 12225), as well as in flooded savannas (Ref. 27188). Regularly goes to the surface of the water to breathe. Can survive long periods out of the water. This behavior of breathing air at the surface makes the fish vulnerable to predation by electric eels (Ref. 27188). Is a predaceous omnivore of open waters. Feeds on aquatic invertebrates and to lesser degree, on fish. Specimens measuring 16 cm were found to be mature (Ref. 12225).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Oyakawa, O.T., 2003. Erythrinidae (Trahiras). p. 238-240. 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. 37025)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; Aquarium: Publieke aquaria
Tools
Speciale rapporten
Download XML
Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01023 (0.00643 - 0.01629), b=3.14 (3.00 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.4 ±0.49 se; based on food items. |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low to moderate vulnerability (30 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
Unknown.
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