Ref. principal | Val, A.L. and V.M.F. de Almeida-Val, 1995 |
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Notas | Occurs in rivers, apparently not entering the sea, although presumably tolerating at least some salinity at the Amazon mouth. |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Tipo de alimentação | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Val, A.L. and V.M.F. de Almeida-Val, 1995 |
Hábito alimentar | hunting macrofauna (predator) |
Feeding habit Ref. | Mérona, B. de and J. Rankin-de-Mérona, 2004 |
Estimation method | Amostra original | População virgem (não pescada) | Nota | ||
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Troph | s.e. | Troph | s.e. | ||
Da composição da dieta | |||||
Dos itens alimentares individuais | 3.71 | 0.56 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |