| Main Ref. | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
|---|---|
| Remarks | Eurythermal. Gregarious when young. Voracious predator. High tolerance to salinity changes. Adults migrate to the estuaries in summer where they spawn in January-June. Young inhabit waters of 0.24-0.37% salinity where they feed mainly on zooplankton (Ref.. 11268). From 3.0 cm TL, diet changes to worms, crustaceans, fish larvae. Adults are strictly carnivorous surviving on small fish (Ref. 11243). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
|
|
|
|
| Substrate | Soft Bottom: sand; Hard Bottom: rocky; |
|---|---|
| Substrate Ref. | FAO EastMed Project, 2013 |
| Special habitats | |
| Special habitats Ref. |
| Ref. | |
|---|---|
| Associations | |
| Associated with | |
| Association remarks | |
| Parasitism |
| Feeding type | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
| Feeding habit | hunting macrofauna (predator) |
| Feeding habit Ref. | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
| Estimation method | Original sample | Unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | 3.79 | 0.60 | |||
| From individual food items | 3.47 | 0.50 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | Costa, M.J., 1988 | ||||