Κύρια Αναφ. | Sierra, L.M., R. Claro and O.A. Popova, 1994 |
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Σχόλια | Inhabits coastal waters, estuaries and lagoons, penetrating into freshwater; usually at depths less than 20 m (Ref. 3713). Feeds on fishes (Gobiidae, Gerreidae, Engraulidae) and crustaceans (shrimps and crabs) (Ref. 35237). Congregates at mouths of passes and rivers during the spawning season, May through September (Ref. 3713). Seasonal movements into freshwater occur but poorly understood (Ref. 3713). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Αναφ. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Τροφικός Τύπος | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Sierra, L.M., R. Claro and O.A. Popova, 1994 |
Τροφική Συνήθεια | hunting macrofauna (predator) |
Feeding habit Ref. | Sierra, L.M., R. Claro and O.A. Popova, 1994 |
Estimation method | Αρχικό δείγμα | Μη αλιευμένος πληθυσμός | Σχόλιο | ||
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Troph | s.e. | Troph | s.e. | ||
Από σύσταση δίαιτας | 4.17 | 0.62 | 4.42 | 0.79 | Troph of juv./adults from 1 study. |
Από ατομικά τροφικά αντικείμενα | 4.08 | 0.70 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Αναφ. | Sierra, L.M., R. Claro and O.A. Popova, 1994 |