主要参考文献 | Sierra, L.M., R. Claro and O.A. Popova, 1994 |
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附注 | 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. |
参考文献 | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
摄取食物的类型 | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Sierra, L.M., R. Claro and O.A. Popova, 1994 |
摄取食物的习惯 | hunting macrofauna (predator) |
Feeding habit Ref. | Sierra, L.M., R. Claro and O.A. Popova, 1994 |
Estimation method | 最初的样本 | 不捕获族群 | 附注 | ||
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Troph | s.e. | Troph | s.e. | ||
从食物内容 | 4.17 | 0.62 | 4.42 | 0.79 | Troph of juv./adults from 1 study. |
从个别的食物项目 | 4.08 | 0.70 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
参考文献 | Sierra, L.M., R. Claro and O.A. Popova, 1994 |