Main Ref. | Fuentes, H.R., 1981 |
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Remarks | Caught in both shallow and deep waters. Its strong dentition makes it an opportunistic predator, even of hard-shelled benthos as shown by its stomach contents of coarse calcareous remains and detritus (Ref. 11295). |
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. | Fuentes, H.R., 1981 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 4.17 | 0.17 | 3.71 | 0.49 | Troph of juv./adults from 1 study. |
From individual food items | 3.37 | 0.55 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Medina, M., M. Araya and C. Vega, 2004 |