Fig. 4

Example of Periodic Descents showing one female from the western (WN) and mid Norway (MN) spawning grounds. Shaded area indicates the onset and end of the behavioural sequence as identified by our code. White fill = day, grey fill = night.

Example of Periodic Descents showing one female from the western (WN) and mid Norway (MN) spawning grounds. Shaded area indicates the onset and end of the behavioural sequence as identified by our code. White fill = day, grey fill = night.