| Ref. principal | Coker, G.A., C.B. Portt and C.K. Minns, 2001 |
|---|---|
| Notas | Inhabits pools with logs and other debris in low- to moderate-gradient, small to large rivers. Also found in lakes and impoundments. Young occur in rocky and sandy runs and riffles. |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrato | Soft Bottom: sand; Hard Bottom: rocky; |
|---|---|
| Substrato Ref. | Page, L.M. and B.M. Burr, 1991 |
| Habitats especiais | |
| Habitats especiais Ref. |
| Ref. | |
|---|---|
| Associações | |
| Associada com | |
| Comentários sobre associação | |
| Parasitismo |
| Tipo de alimentação | mainly animals (troph. 2.8 and up) |
|---|---|
| Tipo de alimentação Ref. | Coker, G.A., C.B. Portt and C.K. Minns, 2001 |
| Hábito alimentar | hunting macrofauna (predator) |
| Hábito de alimentação Ref. | Coker, G.A., C.B. Portt and C.K. Minns, 2001 |
| Estimation method | Amostra original | População virgem (não pescada) | Nota | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| Da composição da dieta | 3.78 | 0.31 | 4.13 | 0.93 | Troph of juv./adults from 3 studies. |
| Dos itens alimentares individuais | 3.20 | 0.49 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | Minckley, W.L. and J.E. Deacon, 1959 | ||||