| Main Ref. | Hacunda, J.S., 1981 |
|---|---|
| Remarks | Prefers water with lower temperature, with a move inshore in winter and offshore into deeper water in summer. Decapod crustaceans and amphipods serve as important foods; also feeds on polychaetes, isopods, molluscs, fishes. Parasites of the species include: 3 protozoans, 2 myxosporidians, nematode and 2 copepods (Ref. 5951). |
| 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. | Hacunda, J.S., 1981 |
| Feeding habit | hunting macrofauna (predator) |
| Feeding habit Ref. |
| Estimation method | Original sample | Unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | 3.61 | 0.13 | 3.44 | 0.39 | Troph of adults from 3 studies. |
| From individual food items | 3.10 | 0.30 | Tentative trophic level derived from 1 + troph of a single food item | ||
| Ref. | Bowman, R.E., C.E. Stillwell, W.L. Michaels and M.D. Grosslein, 2000 | ||||