Table 3.
Instantaneous heart rates (fH) and respiration rates of motionless delphinids at the surface when pronounced sinus arrhythmia (PSA) patterns were observed. Mean ± s.d. is shown. Maximum and minimum fH of apneic periods are shown in electronic supplementary material, table S2. Measurements were conducted from the end of October in 2019 until the beginning of November in 2019.
| species | ID | fasting periods in the morning |
non-fasting periods in the evening |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| fH (bpm) | range (bpm) | respiration rate (breaths min−1) | % of the PSA | trial duration (min) | fH (bpm) | range (bpm) | respiration rate (breaths min−1) | % of the PSA | trial duration (min) | ||
| false killer whale | pc_km | 33 ± 8 | 20–54 | 0.7 | 100 | 8.1 | 51 ± 11 | 24–75 | 1.2 | 84 | 8.3 |
| Risso's dolphin | gg_sm | 67 ± 13 | 46–90 | 3.3 | 31 | 4.9 | 81 ± 11 | 54–108 | 2.2 | 24 | 12.3 |
| gg_mf | 45 ± 11 | 28–81 | 0.9 | 100 | 10.7 | 51 ± 14 | 31–87 | 1.2 | 100 | 9.2 | |
| gg_nf | — | — | — | 0 | 3.9 | 48 ± 14 | 37–120 | 1.5 | 100 | 3.4 | |
| gg_rm | 62 ± 15 | 40–104 | 2.1 | 94 | 10.3 | 69 ± 16 | 46–108 | 1.7 | 76 | 8.7 | |