Main Ref. | Ferriz, R.A., 1993 |
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Remarks | Feeds mainly on insects (Ref. 30526). Also Ref. 26616. |
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. | Ferriz, R.A., 1993 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Ruiz, V.H. and T.M. Berra, 1994 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 3.28 | 0.10 | 3.13 | 0.32 | Troph of juv./adults from 7 studies. |
From individual food items | 3.24 | 0.42 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Ferriz, R.A., 1993 |