| Huvuddomare. | Andrade, P.M. and F.M.S. Braga, 2005 |
|---|---|
| Anmärkningar | Common in creeks, rivers, swamps and lakes. An opportunistic diurnal feeder, eating detritus and plant material, preying on small aquatic animals, including small fish. Very resistant to low temperatures. (Ref.59043). No seasonal or size-related changes in feeding intensity were found, but the diet changed across rivers, over time and throughout ontogeny (Ref. 75855). Fish tend to use the most abundant and easily accessible food items (Ref. 75855). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrat | |
|---|---|
| Substrat Ref. | |
| Särskilda livsmiljöer | |
| Särskilda livsmiljöer Ref. |
| Ref. | |
|---|---|
| Föreningar | |
| Associerad med | |
| Anmärkningar från föreningen | |
| Parasitism |
| Typ av föda | mainly animals (troph. 2.8 and up) |
|---|---|
| Typ av matning Ref. | Ribeiro, F., R.L. Orjuela, M.F. MagalhaËœes and M.J. Collares-Pereira, 2007 |
| Födosöksstrategi | hunting macrofauna (predator) |
| Utfodringsvanor Ref. | Ribeiro, F., R.L. Orjuela, M.F. MagalhaËœes and M.J. Collares-Pereira, 2007 |
| Estimation method | Ursprungligt prov | Ofiskad population | Kommentar | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| Från födosammansättning | |||||
| Från individuella födoämnen | 3.33 | 0.48 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | |||||