| Réf. Princ. | Whitehead, P.J.P., 1985 |
|---|---|
| Remarques | 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 |
|
|
|
|
| Substrat | |
|---|---|
| Substrate Ref. | |
| Habitats spéciaux | |
| Special habitats Ref. |
| Réf. | |
|---|---|
| Associations | |
| Associé avec | |
| Remarques sur les associations | |
| Parasitisme |
| Type de prise alimentaire | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | Whitehead, P.J.P., 1985 |
| Habitude alimentaire | hunting macrofauna (predator) |
| Feeding habit Ref. |
| Estimation method | Échantillon original | Population non pêchée | Remarque | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| À partir du régime alimentaire | |||||
| À partir des éléments alimentaires | 3.44 | 0.45 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Réf. | |||||