Diet and foraging ecology of bowhead whales in Cumberland Sound, NU Energy rich Arctic copepods ¤ Whale behaviour suggests deep feeding ¤ Probable prey concentrations at depth ¤ Cumberland Sound seasonally important ¤ Sarah Fortune 1 , Steve Ferguson 2 , Mark Baumgartner 3 , Bernard LeBlanc 2 & Andrew Trites 1 1 University of British Columbia 2 Fisheries and Oceans Canada & University of Manitoba 3 Woods Hole Oceanographic Institution ¡
Zooplankton sampling locations 75 70 65 Davis Strait 60 ¡ 67.0 Baffin Island 55 66.5 Hudson 0 200 400 600 km Pangnirtung Bay 66.0 50 ¡ -100 -90 -80 -70 -60 65.5 ¤ Surface (0.5 m) Cumberland Sound 65.0 ¤ Oblique (~12 m) 64.5 ¤ Vertical (~200 m) 0 20 40 60 km ¤ Multiple depth strata 64.0 -67 -66 -65 -64 -63 -62 -61 -60
Whale dive behaviour classification Bottom time >50% total dive duration ¤ 3 days in Kingnait Fiord ¤ ~20 minute dives ¤ >90% square dives ¤ Dive depth ~197 m
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