Table 1 Summary of killer whale observations during fall (September 1 – November 30) standardized surveys at Southeast Farallon Island between 1987 and 2013.
From: Killer whales redistribute white shark foraging pressure on seals
Date | Minimum dist. (km) | Duration (hr) | Pod size | Predation observed | Shark flight | Ecotype | |
|---|---|---|---|---|---|---|---|
22-Oct-92 | — | — | 6 | no | no | — | |
24-Sep-95 | 4.8 | <5 | 12 | no | no | — | |
23-Nov-96 | 5.6 | — | 15 | no | no | — | |
** | 4-Oct-97 | 0.2 | 2.4 | 2 | yes | Srv | Tran |
14-Oct-97 | 0.2 | 5.5 | 3 | no | Srv | — | |
17-Oct-97 | — | — | 2 | no | Srv | Tran | |
31-Oct-97 | — | <1 | 2 | no | Srv | Tran | |
14-Oct-98 | 2.8 | — | 4 | no | no | — | |
14-Nov-99 | 7.4 | — | 17 | no | no | — | |
18-Nov-00 | — | — | 15 | no | no | — | |
** | 19-Nov-00 | 0.2 | <4 | 12 | yes | SW | — |
21-Nov-00 | 0.2 | — | 5 | no | SW | — | |
9-Nov-01 | 6.5 | — | 12 | no | no | — | |
** | 2-Nov-09 | 0.2 | 2.5 | 7 | yes | Srv, Tag | Tran, Off |
** | 20-Nov-11 | * | * | * | * | Srv, Tag | * |
4-Sep-12 | 2.8 | — | 1 | no | no | — | |
** | 31-Oct-13 | 0.6 | — | 13 | no | Srv, Tag | — |
9-Nov-13 | — | — | 2 | no | Srv, Tag | — | |
11-Nov-13 | — | — | 2 | no | Srv, Tag | — |
