Skip to Main Content
Table 3.

Summary of the four locomotory stages of the alternate reaction in cuttlefish

Stage 1Stage 2Stage 3Stage 4End of experiment
Defining locomotion Slowing of movements Behavioural freezing Resumption of movement Swimming Resumption of resting behaviour 
Duration 3 s (2,5 s) 3 s (3,12 s) 40 s (13,77 s) 9 min (7,16 min) N/A 
Important ventilatory and cardiac events (see Table 4) Heart rate decreased below resting levels Ventilation rate decreased below resting levels Ventilation rate and heart rate recovered Rates impossible to measure due to swimming Ventilation rate and heart rate returned to resting 
Important chromatic and textural events (see text) Rapid chromatic and textural changes Some textural changes; Deimatic Display Recovery from Deimatic Display Recovery from Deimatic Display None 
Stage 1Stage 2Stage 3Stage 4End of experiment
Defining locomotion Slowing of movements Behavioural freezing Resumption of movement Swimming Resumption of resting behaviour 
Duration 3 s (2,5 s) 3 s (3,12 s) 40 s (13,77 s) 9 min (7,16 min) N/A 
Important ventilatory and cardiac events (see Table 4) Heart rate decreased below resting levels Ventilation rate decreased below resting levels Ventilation rate and heart rate recovered Rates impossible to measure due to swimming Ventilation rate and heart rate returned to resting 
Important chromatic and textural events (see text) Rapid chromatic and textural changes Some textural changes; Deimatic Display Recovery from Deimatic Display Recovery from Deimatic Display None 

Duration is expressed as the median over all cuttlefish (N=6; 1st,3rd quartiles in parentheses). Also included are the important ventilation rate, heart rate and chromatic and textural changes.

Close Modal

or Create an Account

Close Modal
Close Modal