| Main Ref. | Tan, J.M.L., 1995 |
|---|---|
| Remarks | Often seen near shore, along the outer continental shelf and in deep oceanic waters (Ref. 80620). Feeds in deep waters (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 | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
|
|
|
|
| Substrate | |
|---|---|
| Substrate Ref. | |
| Special habitats | |
| Special habitats Ref. |
| Ref. | Tan, J.M.L., 1995 |
|---|---|
| Associations | |
| Associated with | |
| Association remarks | |
| Parasitism |
| Feeding type | mainly animals (troph. 2.8 and up) |
|---|---|
| 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 | ||
|---|---|---|---|---|---|
| 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 | ||||