Table 1.
Narwhal orientation results monitored by Crittercam
| Orientation category, % of total time | Orientation category, % of time within each orientation category | |||||||||||
| Narwhal # | Sex | Length (cm) | Recording duration (min) | Vertical stratum | Normal | Unknown | Upside-down | Total | Normal | Unknown | Upside-down | Total |
| 3960 | F | 416 | 98 | Surface | 25.9 | 1.2 | 0.0 | 27.1 | 95.6 | 4.4 | 0.0 | 100.0 |
| Pelagic | - | 69.4 | - | 69.4 | - | 100.0 | - | 100.0 | ||||
| Bottom | 0.2 | 0.0 | 3.3 | 3.5 | 5.7 | 0.0 | 94.3 | 100.0 | ||||
| Total | 26.1 | 70.6 | 3.3 | 100.0 | 26.1 | 70.6 | 3.3 | 100.0 | ||||
| 7931 | M | 349 | 114 | Surface | 34.8 | 0.0 | 0.0 | 34.8 | 100.0 | 0.0 | 0.0 | 100.0 |
| Pelagic | - | 51.9 | - | 51.9 | - | 100.0 | - | 100.0 | ||||
| Bottom | 4.7 | 0.0 | 8.5 | 13.2 | 35.6 | 0.0 | 64.4 | 100.0 | ||||
| Total | 39.5 | 51.9 | 8.5 | 100.0 | 39.5 | 51.9 | 8.5 | 100.0 | ||||
| 3964 | F | 380 | 40 | Surface | 17.2 | 0.0 | 0.0 | 17.2 | 100.0 | 0.0 | 0.0 | 100.0 |
| Pelagic | 0.5 | 61.4 | - | 62.0 | 0.8 | 99.2 | - | 100.0 | ||||
| Bottom | 8.1 | 0.0 | 12.7 | 20.8 | 38.9 | 0.0 | 61.1 | 100.0 | ||||
| Total | 25.8 | 61.4 | 12.7 | 100.0 | 25.8 | 61.4 | 12.7 | 100.0 | ||||
| 37233 | M | 415 | 34 | Surface | 42.3 | 0.0 | 0.0 | 42.3 | 100.0 | 0.0 | 0.0 | 100.0 |
| Pelagic | 0.0 | 48.9 | 0.0 | 48.9 | 0.0 | 100.0 | 0.0 | 100.0 | ||||
| Bottom | 0.0 | 0.0 | 8.8 | 8.8 | 0.0 | 0.0 | 100.0 | 100.0 | ||||
| Total | 42.3 | 48.9 | 8.8 | 100.0 | 42.2 | 48.8 | 8.7 | 100.0 | ||||
| Average | 286 | Surface | 30.1 | 0.3 | 0.0 | 30.4 | 98.9 | 1.1 | 0.0 | 100.0 | ||
| Pelagic | 0.3 | 57.9 | 0.0 | 58.1 | 0.4 | 99.8 | 0.0 | 100.0 | ||||
| Bottom | 3.3 | 0.0 | 8.3 | 11.6 | 20.1 | 0.0 | 79.9 | 100.0 | ||||
| Total | 33.4 | 58.2 | 8.3 | 100.0 | 33.4 | 58.2 | 8.3 | 100.0 | ||||
Percentage time spent in different orientation categories at different depths based on Crittercam data from four narwhals in Admiralty Inlet in 2003 and 2004.