Resting ventilation and heart rates reported in this and previous studies on S. officinalis
| Study . | Technique . | Temperature (°C) . | Cuttlefish size (mantle length, cm) . | Reported rate . | Standardized rate . |
|---|---|---|---|---|---|
| Ventilation rate (breaths min-1) | |||||
| Present study | Non-invasive (ultrasound) | 15 | 15.5-18.5 | 35.0±9.2 | 35.0±9.2 |
| Boal and Ni,1996 | Non-invasive (visual observation) | 19-21 | 7.5-10.5 | 45 | 32.1 |
| Mislin,1966 | Invasive (leads forced through mantle) | 16-18 | 20-35 | 45±9 | 39.3 |
| Bone et al.,1994 | Invasive (electrodes in mantle tissue) | 18.5 | 5.0-25.0 | 48-60 | 42.6 |
| Heart rate (beats min-1) | |||||
| Present study | Non-invasive (ultrasound) | 15 | 15.5-18.5 | 24.0±5.1 | 24.0±5.1 |
| Chichery and Chanelet, 1972 | Invasive (EKG leads) | 16 | 13.6-20.0 | 20-30 | 22.8 |
| Mislin,1966 | Invasive (leads forced through cuttlebone) | 16-18 | 20-35 | 43±9 | 35.8 |
| Chichery,1980 | Invasive (EKG leads) | 13 | Not reported | 45-50 | 57.1 |
| Study . | Technique . | Temperature (°C) . | Cuttlefish size (mantle length, cm) . | Reported rate . | Standardized rate . |
|---|---|---|---|---|---|
| Ventilation rate (breaths min-1) | |||||
| Present study | Non-invasive (ultrasound) | 15 | 15.5-18.5 | 35.0±9.2 | 35.0±9.2 |
| Boal and Ni,1996 | Non-invasive (visual observation) | 19-21 | 7.5-10.5 | 45 | 32.1 |
| Mislin,1966 | Invasive (leads forced through mantle) | 16-18 | 20-35 | 45±9 | 39.3 |
| Bone et al.,1994 | Invasive (electrodes in mantle tissue) | 18.5 | 5.0-25.0 | 48-60 | 42.6 |
| Heart rate (beats min-1) | |||||
| Present study | Non-invasive (ultrasound) | 15 | 15.5-18.5 | 24.0±5.1 | 24.0±5.1 |
| Chichery and Chanelet, 1972 | Invasive (EKG leads) | 16 | 13.6-20.0 | 20-30 | 22.8 |
| Mislin,1966 | Invasive (leads forced through cuttlebone) | 16-18 | 20-35 | 43±9 | 35.8 |
| Chichery,1980 | Invasive (EKG leads) | 13 | Not reported | 45-50 | 57.1 |
Rates are standardized to our temperature of 15°C using previously calculated Q10 values (King et al., 2005). If size was reported in mass instead of in mantle length, the equivalent mantle length was interpolated(Forsythe et al., 1994). We did not standardize rates for size. However, larger animals are expected to have slower heart rates (Chichery and Chanelet, 1972).