| Main Ref. | Greger, P.D. and J.E. Deacon, 1987 |
|---|---|
| Remarks | Is an omnivore which is capable of specializing on particular foods that become seasonally abundant (Ref. 42173). Occurs in faster-water habitats (riffles) and less commonly in deeper pools (Ref. 26186). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrate | |
|---|---|
| Substrate Ref. | |
| Special habitats | |
| Special habitats Ref. |
| Ref. | |
|---|---|
| Associations | |
| Associated with | |
| Association remarks | |
| Parasitism |
| Feeding type | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | Greger, P.D. and J.E. Deacon, 1987 |
| Feeding habit | variable |
| Feeding habit Ref. |
| Estimation method | Original sample | Unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | 3.10 | 0.10 | Troph of juv./adults from 7 studies. | ||
| From individual food items | |||||
| Ref. | Greger, P.D. and J.E. Deacon, 1987 | ||||