Main Ref. | Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993 |
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Remarks | Found over the continental shelf and slope. Occurs in deep waters, and also venture into freshwaters in rivers and around glaciers. Feeds on many species of benthic and pelagic fishes, and invertebrates (i.e. lobster, krill, squid, octopus, and jellyfish), and occasionally penguins and young South American seals). |
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. | Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993 |
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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. | Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993 |
Estimation method | original sample | unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 4.50 | 0.80 | Troph of juv./adults. | ||
From individual food items | 4.50 | 0.75 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | George-Nascimento, M., R. Bustamante and C. Oyarzun, 1985 |