Main Ref. | Poll, M., 1967 |
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Remarks | Inhabits calmer waters of rivers (Ref. 11970). Feeds on worms and insect larvae when young, but takes larger food, mainly fish, when adult (Ref. 27292). It hunts mainly at night (Ref. 27292). |
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. |
Ref. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Feeding type | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Seegers, L., 1996 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Seegers, L., 1996 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 3.69 | 0.60 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |