Main Ref. | Whitehead, P.J.P., 1985 |
---|---|
Remarks | Feeds on fish and zooplankton (Ref. 188). In open sea, not approaching shores; in winter found mainly in southern part, migrating to middle parts of sea in spring (especially the eastern half), returning south in November - December; occurs in upper layers in March - April, but descend to 16 to 32 m in summer and autumn. |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
---|---|---|---|---|
Marine zones / Brackish and freshwater bodies |
|
|
|
|
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. | Whitehead, P.J.P., 1985 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. |
Estimation method | Original sample | Unfished population | Remark | ||
---|---|---|---|---|---|
Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 3.44 | 0.45 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |