主要参考文献 | Goulding, M., 1980 |
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附注 | Forms schools. Mainly diurnal (Ref. 9096). Occurs in the rapids but is also captured in deep zones of main rivers with the use of fish bait. Is essentially a carnivore, feeds on small fish, crabs, mammals, lizards and coleopteran insects. Its opportunistic behavior allows it to adapt to various biotopes (Ref. 12225). It is timid and not aggressive but it possesses powerful dentition that can cause serious bites, and is therefore, potentially dangerous. |
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. | Goulding, M., 1980 |
摄取食物的习惯 | hunting macrofauna (predator) |
Feeding habit Ref. | Goulding, M., 1980 |
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 | 4.03 | 0.44 | 3.89 | 0.57 | Troph of juv./adults from 2 studies. |
从个别的食物项目 | 3.57 | 0.59 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
参考文献 | Goulding, M., 1980 |