Table 3 Summaries of chick-rearing Adélie penguin activity at Béchervaise Island (n = 23 individuals, n = 27 foraging trips)
Number of birds = 23 | Guard | Crèche | ||
|---|---|---|---|---|
(n = 14 trips) | (n = 13 trips) | |||
Trip characteristics | Mean (CI) | Range | Mean (CI) | Range |
Foraging trip | ||||
Duration (h) | 98 (62–125) | 77–181 | 114 (57–162) | 73–208 |
Maximum distance from colony (km) | 222 (178–249) | 199–306 | 242 (178–283) | 203–329 |
Move persistence | ||||
\({\gamma }_{t}\) | 0.89 (0.66–1.00) | 0.62–0.99 | 0.91 (0.71–1.00) | 0.32–0.99 |
Dive data | ||||
Depth (m) | 265 (30–796) | 5–1575 | 299 (40–836) | 5–1879 |
Bottom duration (s) | 506 (99–1164) | 19–2259 | 559 (103–1327) | 19–2247 |
# Wiggles | 61 (9–160) | 5–568 | 96 (16–241) | 5–628 |
ACPUE | 0.12 (0.03–0.25) | 0.07–0.47 | 0.17 (0.08–0.26) | 0.09–0.64 |