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Table 4.

Summary of the ventilatory and cardiac responses of cuttlefish to sudden stimuli

No. of trials No. of cuttlefish% Rate decrease median (1st, 3rd quartiles)Stage that decrease occurredOccurrence of arrestDuration of arrest, range (s)
Ventilation rate 63.5 Stage 2: 4/6 cuttlefish 4/6 trials 3.7-16.3 
 (46.0, 78.9) Onset of stage 3: 2/6 cuttlefish   
Heart rate 48.3 Stage 1: 4/5 cuttlefish, 5/5 trials 3/7 trials 5.3-20.0 
 (20.0, 66.5) Stage 2: 1 cuttlefish, 2/2 trials 2/5 cuttlefish  
No. of trials No. of cuttlefish% Rate decrease median (1st, 3rd quartiles)Stage that decrease occurredOccurrence of arrestDuration of arrest, range (s)
Ventilation rate 63.5 Stage 2: 4/6 cuttlefish 4/6 trials 3.7-16.3 
 (46.0, 78.9) Onset of stage 3: 2/6 cuttlefish   
Heart rate 48.3 Stage 1: 4/5 cuttlefish, 5/5 trials 3/7 trials 5.3-20.0 
 (20.0, 66.5) Stage 2: 1 cuttlefish, 2/2 trials 2/5 cuttlefish  

Only trials having all reaction stages are included. All trials showed ventilatory or cardiac slowing, but not all showed arrest.

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