Main Ref. | Tan, J.M.L., 1995 |
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Remarks | Often seen near shore, along the outer continental shelf and in deep oceanic waters (Ref. 80620). Feeds in deep waterse (Ref. 122680). Feeds on mid-water fish, squid and crustaceans (Ref. 1394). Forms large social groups (Ref. 122680). Occasionally sighted with melon-headed whales, Peponocephala electra. (Ref. 80612). |
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. | Tan, J.M.L., 1995 |
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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 | 4.36 | 0.67 | Troph of juv./adults. | ||
From individual food items | 4.50 | 0.77 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Dolar, M.L.L., W.A. Walker, G.L. Kooyman and W.F. Perrin, 2003 |