Study area with tracklines of whales. (A) Bathymetric chart of Disko Bay with tracks of the tagged bowhead whales. Black stars indicate the tagging locality. Locations where bowhead whales were harvested and stomach samples containing copepods were collected are indicated with red dots . The black triangles indicate the acoustic sampling areas of the zooplankton patches and Laksebugten is the locality for the 29 WP2 net sampling stations. (B) Movements of one bowhead whale (BW5) that departed from Disko Bay north along Disko Island before returning to Disko Bay. The black star indicates the tagging locality of the whale.