| Réf. Princ. | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
|---|---|
| Remarques | Only old males deeper, occurs deeper during winter. Buries itself in the sand at night or when frightened. Acts sometimes as cleaner. |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
|
|
|
|
| Substrat | : rocky; |
|---|---|
| Substrate Ref. | |
| Habitats spéciaux | Beds: sea grass; |
| 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. | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
| Habitude alimentaire | hunting macrofauna (predator) |
| Feeding habit Ref. | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
| Estimation method | Échantillon original | Population non pêchée | Remarque | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| À partir du régime alimentaire | 3.44 | 0.11 | Troph of juv./adults from 2 studies. | ||
| À partir des éléments alimentaires | 3.24 | 0.43 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Réf. | Bell, J.D. and M.L. Harmelin-Vivien, 1983 | ||||