Means of 23 statistical variables digitized from the kinematic profiles of Chelus fimbriatus feeding on fish
| Variable . | . |
|---|---|
| Mean velocity of stalking (cm s-1) | 0.36±0.30 |
| Time between start of gape and start of approach (ms) | 5.94±1.89 |
| Mean velocity of forward thrust of head (cm s-1) | 70.47±15.81 |
| Maximum velocity of forward thrust of head (cm s-1) | 177.97±48.64 |
| Gape cycle duration (ms) | 83.35±19.90 |
| Time to maximum gape (ms) | 20.30±4.59 |
| Mean velocity of gape (cm s-1) | 75.46±14.96 |
| Maximum velocity of gape (cm s-1) | 151.15±40.72 |
| Mean velocity of mouth closure (cm s-1) | 25.46±8.13 |
| Maximum velocity of mouth closure (cm s-1) | 88.46±33.30 |
| Delay between start of hyoid depression and maximum gape (ms) | 11.10±2.77 |
| Delay between maximum hyoid depression and maximum gape (ms) | 46.55±10.78 |
| Time to maximum hyoid depression (ms) | 54.00±10.92 |
| Mean velocity of hyoid depression (cm s-1) | 29.70±6.59 |
| Maximum velocity of hyoid depression (cm s-1) | 93.93±27.24 |
| Mean velocity of prey (suction) (cm s-1) | 144.33±70.30 |
| Maximum velocity of prey (suction) (cm s-1) | 282.59±166.76 |
| Delay between start of oesophageal distension and hyoid depression (ms) | 6.50±3.36 |
| Duration of oesophageal distension (ms) | 1340.00±219.10 |
| Time to first peak of oesophageal distension (ms) | 43.95±9.25 |
| Duration of distension (ms) | 218.90±85.14 |
| Mean velocity of oesophageal distension (cm s-1) | 39.40±11.63 |
| Maximum velocity of oesophageal distension (cm s-1) | 103.48±28.07 |
| Ram-suction index | +0.36±0.23 |
| Variable . | . |
|---|---|
| Mean velocity of stalking (cm s-1) | 0.36±0.30 |
| Time between start of gape and start of approach (ms) | 5.94±1.89 |
| Mean velocity of forward thrust of head (cm s-1) | 70.47±15.81 |
| Maximum velocity of forward thrust of head (cm s-1) | 177.97±48.64 |
| Gape cycle duration (ms) | 83.35±19.90 |
| Time to maximum gape (ms) | 20.30±4.59 |
| Mean velocity of gape (cm s-1) | 75.46±14.96 |
| Maximum velocity of gape (cm s-1) | 151.15±40.72 |
| Mean velocity of mouth closure (cm s-1) | 25.46±8.13 |
| Maximum velocity of mouth closure (cm s-1) | 88.46±33.30 |
| Delay between start of hyoid depression and maximum gape (ms) | 11.10±2.77 |
| Delay between maximum hyoid depression and maximum gape (ms) | 46.55±10.78 |
| Time to maximum hyoid depression (ms) | 54.00±10.92 |
| Mean velocity of hyoid depression (cm s-1) | 29.70±6.59 |
| Maximum velocity of hyoid depression (cm s-1) | 93.93±27.24 |
| Mean velocity of prey (suction) (cm s-1) | 144.33±70.30 |
| Maximum velocity of prey (suction) (cm s-1) | 282.59±166.76 |
| Delay between start of oesophageal distension and hyoid depression (ms) | 6.50±3.36 |
| Duration of oesophageal distension (ms) | 1340.00±219.10 |
| Time to first peak of oesophageal distension (ms) | 43.95±9.25 |
| Duration of distension (ms) | 218.90±85.14 |
| Mean velocity of oesophageal distension (cm s-1) | 39.40±11.63 |
| Maximum velocity of oesophageal distension (cm s-1) | 103.48±28.07 |
| Ram-suction index | +0.36±0.23 |
Values are means ± S.D. (N=20).