Now showing items 1-5 of 5

    • Body density and diving gas volume of the northern bottlenose whale (Hyperoodon ampullatus) 

      Miller, Patrick; Narazaki, Tomoko; Isojunno, Saana; Suzuki, Kagari; Smout, Sophie Caroline; Sato, Katsufumi (2016-08-17) - Journal article
      Diving lung volume and tissue density, reflecting lipid store volume, are important physiological parameters that have only been estimated for a few breath-hold diving species. We fitted 12 northern bottlenose whales with ...
    • Body density of humpback whales (Megaptera novaengliae) in feeding aggregations estimated from hydrodynamic gliding performance 

      Narazaki, Tomoko; Isojunno, Saana; Nowacek, Douglas P.; Swift, Rene; Friedlaender, Ari S.; Ramp, Christian; Smout, Sophie; Aoki, Kagari; Deecke, Volker B.; Sato, Katsufumi; Miller, Patrick J. O. (2018-07-12) - Journal article
      Many baleen whales undertake annual fasting and feeding cycles, resulting in substantial changes in their body condition, an important factor affecting fitness. As a measure of lipid-store body condition, tissue density ...
    • First indications that northern bottlenose whales are sensitive to behavioural disturbance from anthropogenic noise 

      Miller, Patrick; Kvadsheim, P H; Lam, F P A; Tyack, Peter Lloyd; Curé, C; De Ruiter, Stacy Lynn; Kleivane, L; Sivle, L D; van IJsselmuide, S P; Visser, F; Wensveen, Paulus Jacobus; von Benda-Beckmann, A M; Martin Lopez, Lucia Martina; Narazaki, Tomoko; Hooker, Sascha Kate (2015-06-03) - Journal article
      Although northern bottlenose whales were the most heavily hunted beaked whale, we have little information about this species in its remote habitat of the North Atlantic Ocean. Underwater anthropogenic noise and disruption ...
    • High diving metabolic rate indicated by high-speed transit to depth in negatively buoyant long-finned pilot whales 

      Aoki, Kagari; Sato, Katsufumi; Isojunno, Saana; Narazaki, Tomoko; Miller, Patrick J.O. (2017-10-18) - Journal article
      To maximize foraging duration at depth, diving mammals are expected to use the lowest cost optimal speed during descent and ascent transit and to minimize the cost of transport by achieving neutral buoyancy. Here, we ...
    • Northern bottlenose whales in a pristine environment respond strongly to close and distant navy sonar signals 

      Wensveen, Paul J.; Isojunno, Saana; Hansen, Rune R.; Von Benda-beckmann, Alexander M.; Kleivane, Lars; Van Ijsselmuide, Sander; Lam, Frans-peter A.; Kvadsheim, Petter H.; Deruiter, Stacy L.; Curé, Charlotte; Narazaki, Tomoko; Tyack, Peter L.; Miller, Patrick J. O. (2019-03-20) - Journal article
      Impact assessments for sonar operations typically use received sound levels to predict behavioural disturbance in marine mammals. However, there are indications that cetaceans may learn to associate exposures from distant ...