Main Ref. | Ortega, H. and R.P. Vari, 1986 |
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Remarks | Is very active and is always moving. Frequently found in well oxygenated waters (Ref. 12225). Occurs mainly near the surface and at times jumps out of the water. Feeds on worms, insect larvae, small fishes (Ref. 7020); plants and terrestrial invertebrates (Ref. 76754). Omnivore (Ref. 76754). |
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. | Mills, D. and G. Vevers, 1989 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Mills, D. and G. Vevers, 1989 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 3.38 | 0.47 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |