| Main Ref. | Chavance, P., D.F. Hernández, A. Yañez-Arancibia and F.A. Linares, 1984 |
|---|---|
| Remarks | Feeds mainly on fish and benthic organisms (Ref. 4480). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrate | |
|---|---|
| Substrate Ref. | |
| Special habitats | Beds: sea grass; |
| Special habitats Ref. |
| Ref. | |
|---|---|
| Associations | |
| Associated with | |
| Association remarks | |
| Parasitism |
| Feeding type | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | Chavance, P., D.F. Hernández, A. Yañez-Arancibia and F.A. Linares, 1984 |
| Feeding habit | variable |
| Feeding habit Ref. | Chavance, P., D.F. Hernández, A. Yañez-Arancibia and F.A. Linares, 1984 |
| Estimation method | Original sample | Unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | 3.20 | 3.16 | 0.32 | Troph of adults from 1 study. | |
| From individual food items | 3.24 | 0.46 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | Bowman, R.E., C.E. Stillwell, W.L. Michaels and M.D. Grosslein, 2000 | ||||