Table 2.
At‐sea field metabolic rates (FMR) for adult female California sea lions and the behavioral variables used in the principal components regression. Values for behavioral variables represent mean values for all dives or bouts across the foraging trip
| Sea lion ID | At‐sea FMR (W/kg) | Depth (m) | Duration (s) | Ascent rate (m/s) | Descent rate (m/s) | Bout duration (hr) | |
|---|---|---|---|---|---|---|---|
| Nagy | Speakman | ||||||
| Mixed | |||||||
| C2 | 5.30 | 3.29 | 54.5 | 119.3 | 1.18 | 1.11 | 1.3 |
| C8 | 8.00 | 5.98 | 93.3 | 185.0 | 1.50 | 1.63 | 1.5 |
| C12 | 8.84 | 6.97 | 130.5 | 226.2 | 1.44 | 1.53 | 1.9 |
| C14 | 6.72 | 5.35 | 39.0 | 142.1 | 1.15 | 1.32 | 2.0 |
| C16 | 7.85 | 6.01 | 143.2 | 225.8 | 1.49 | 1.53 | 1.2 |
| C20 | 6.49 | 4.95 | 42.1 | 132.3 | 1.24 | 1.43 | 1.4 |
| C22 | 8.27 | 6.44 | 92.2 | 173.3 | 1.45 | 1.44 | 1.7 |
| WAF2001 | 6.70 | 5.21 | 32.0 | 122.1 | 1.13 | 1.21 | 1.2 |
| WAF2002 | 5.58 | 3.93 | 74.1 | 202.3 | 1.17 | 1.33 | 1.6 |
| WAF2010 | 7.26 | 5.47 | 82.4 | 167.7 | 1.23 | 1.31 | 1.7 |
| WAF2025 | 7.18 | 5.20 | 41.9 | 157.2 | 1.07 | 1.06 | 1.3 |
| Deep | |||||||
| C3 | 7.29 | 5.29 | 161.7 | 238.0 | 1.44 | 1.61 | 1.8 |
| C18 | 6.56 | 4.75 | 188.9 | 255.5 | 1.45 | 1.59 | 2.5 |
| WAF2007 | 6.15 | 4.51 | 203.0 | 265.2 | 1.54 | 1.63 | 3.3 |
| WAF2018 | 7.10 | 5.25 | 105.2 | 169.6 | 1.02 | 1.00 | 1.1 |