Influence of the time of day on dive parameters as a function of the season.

<p>Mean and 95% bootstrapped CI of (a) average dive depth (b) average dive duration and (c) average number of dives per 6 hour period for each month made by harbour seals instrumented with Conductivity-Temperature-Depth Satellite-Relay-Data-Loggers (CTD-SRDLs) on Svalbard, Norway during 2009/2010 and 2010/2011.