Main Ref. | Fuentes, H., E. Antonietti and P. Muck, 1989 |
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Remarks | Occurs from the shallow continental shelf to the upper continental slope (Ref. 1371). Sometimes found off the bottom or in midwater (Ref. 1371). Diet varies with age; opportunistic species feeds mainly on euphausiids during its early years, but later it feeds almost exclusively (98%) on fish (Ref. 10611). |
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., E. Antonietti and P. Muck, 1989 |
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 | 4.40 | 0.55 | 4.14 | 0.66 | Troph of juv./adults from 2 studies. |
From individual food items | 3.85 | 0.56 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Garcia, A.C.V., 1974 |