Fig. 1

Filtered and corrected tracks of white whales in Svalbard, Norway. Tracks of male white whales equipped with biotelemetry devices in Svalbard, Norway after filtration and correction of on-land positions during a) 1995–2001 and b) 2013–2016. The blue and green dots represent the deployment points for these two periods. Purple lines correspond to the glacier front data corresponding to the period