Individual trials yielded a variable number of observations, but treatments had a similar number of total observations
| . | . | Particle treatments . | . | . | . | |||
|---|---|---|---|---|---|---|---|---|
| . | No particles . | 0.6 mm 2.5 cm s–1 . | 1.5 mm 2.5 cm s–1 . | 1.5 mm 5 cm s–1 . | 1.5 mm 10 cm s–1 . | |||
| Number of trials (N) | 24 | 24 | 25 | 25 | 24 | |||
| Total observations | 533 | 556 | 555 | 584 | 542 | |||
| Open mantle observations | 156 | 125 | 287 | 284 | 144 | |||
| Percentage of open mantle observations per trial | 29±10 | 23±10 | 52±13 | 49±11 | 26±10 | |||
| Extended tentacle observations | 342 | 300 | 376 | 365 | 292 | |||
| Percentage of extended tentacle observations per trial | 63±14 | 54±14 | 69±12 | 64±14 | 53±14 | |||
| Valve claps per trial | 1.8±1.4 | 1.4±1.4 | 1.8±1.2 | 1.5±1.4 | 1.9±1.6 | |||
| . | . | Particle treatments . | . | . | . | |||
|---|---|---|---|---|---|---|---|---|
| . | No particles . | 0.6 mm 2.5 cm s–1 . | 1.5 mm 2.5 cm s–1 . | 1.5 mm 5 cm s–1 . | 1.5 mm 10 cm s–1 . | |||
| Number of trials (N) | 24 | 24 | 25 | 25 | 24 | |||
| Total observations | 533 | 556 | 555 | 584 | 542 | |||
| Open mantle observations | 156 | 125 | 287 | 284 | 144 | |||
| Percentage of open mantle observations per trial | 29±10 | 23±10 | 52±13 | 49±11 | 26±10 | |||
| Extended tentacle observations | 342 | 300 | 376 | 365 | 292 | |||
| Percentage of extended tentacle observations per trial | 63±14 | 54±14 | 69±12 | 64±14 | 53±14 | |||
| Valve claps per trial | 1.8±1.4 | 1.4±1.4 | 1.8±1.2 | 1.5±1.4 | 1.9±1.6 | |||
When appropriate, data are given as means ± 2 s.e.m. (to give a 95%confidence interval)