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Methods and Materials
Loqistics and limitations
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69 calves age classes analysis ANOVA baleen whale behavioural regime behavioural sample Big Island blow intervals body length bottlenose dolphin breath holding capacity breathing regime budget calf behaviour calf groups calf pairs calf spent calf surface cetaceans changes circling intervals cookie cutter shark depth dive blows documented dorsal fin furl extended dives false killer whales Four Island area Four Island region frequency of intermittent gray whale group composition habitat Hawaiian waters humpback whale calves included increased indicated intermittent blows marine mammals maximum dive median values metres minute Mobley mother and calf myoglobin neonate nursery regions nursery waters observations PCA components pectoral fin persistent predation relative age relocation research vessel right whale season seen shoreline sight period significant speed of travel spent stalled stage 2 calves stalled periods study area surface activity swimming Taber and Thomas tail slaps tail swishes tiger sharks twirling variables variation videogrammetry whale watching