Table 3.
Estimated total body O2 stores, cADL, and maximum observed dive duration for seals in the euthyroid and hyperthyroid state.
| Seal | Mb(kg) | O2 store (ml) | cADL (min) | Maximum dive duration (min) |
|---|---|---|---|---|
| EUTHYROID | ||||
| Seal 1 | 32.2 | 1831.1 | 6.52 | 4.68 |
| Seal 2 | 35.9 | 2037.5 | 7.86 | 7.49 |
| Seal 3 | 30.0 | 1702.2 | 6.20 | 5.03 |
| Seal 4 | 26.3 | 1495.9 | 6.35 | 7.35 |
| Seal 5 | 30.9 | 1753.8 | 5.61 | |
| Grand mean | 31.1 ± 3.5 | 1764.1 ± 196.9 | 6.51 ± 0.83 | 6.14 ± 1.49 |
| HYPERTHYROID | ||||
| Seal 1 | 33.6 | 1908.5 | 5.69 | 2.42 |
| Seal 2 | 36.8 | 2089.0 | 7.54 | 4.72 |
| Seal 3 | 30.9 | 1753.8 | 6.07 | 2.32 |
| Seal 4 | 28.6 | 1624.8 | 5.92 | 3.25 |
| Seal 5 | 30.9 | 1753.8 | 5.35 | |
| Grand mean | 32.1 ± 3.1† | 1826.0 ± 178.1† | 6.11 ± 0.85† | 3.18 ± 1.11† |
O2 stores were calculated according to Davis et al. (1991).
cADL was calculated by dividing estimated O2 stores by the mean RMR measured for each seal as an approximation of metabolic rate during stationary diving. Values for max. dive duration are means established from 3–5 trials (lasting 24–48 h), during which the single longest spontaneous dive was recorded.
†
Indicates a significant difference from the euthyroid state.