Main Ref. | Val, A.L. and V.M.F. de Almeida-Val, 1995 |
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Remarks | Common in black and clear water streams and rivers, as well as lagoons and other off-channel habitats associated with whitewater rivers (Ref. 52916). Prefers slow currents and a silty or sandy bottom. Like other species of the genus, it is a formidable predator (Ref. 12225). Piscivore (Ref. 76754); however, it consumes insects during the dry periods of the year (Ref. 27188). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | Soft Bottom |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Feeding type | 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 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Mérona, B. de and J. Rankin-de-Mérona, 2004 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 4.35 | 0.76 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |