Main Ref. | Billard, R., 1997 |
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Remarks | Feeds on fish, fish eggs and small insects (Ref. 30578). Also Ref. 84946. |
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. | Billard, R., 1997 |
Feeding habit | variable |
Feeding habit Ref. |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 3.06 | 0.10 | Troph of juv./adults from 2 studies. | ||
From individual food items | 3.22 | 0.47 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Mukhacheva, V.A., 1950 |