Browsing by Author "Hansen, Rune Roland"

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    • Avoidance responses of minke whales to 1?4 kHz naval sonar 

      Kvadsheim, Petter Helgevold; DeRuiter, Stacy; Sivle, Lise Doksæter; Goldbogen, Jeremy; Hansen, Rune Roland; Miller, Patrick J.O.; Lam, Frans-Peter A.; Calambokidis, John; Friedlaender, Ari; Visser, Fleur; Tyack, Peter L.; Kleivane, Lars; Southall, Brandon (2017)
      Minke whales are difficult to study and little information exists regarding their responses to anthropogenic sound. This study pools data from behavioural response studies off California and Norway. Data are derived from ...

    • Effekter av menneskeskapt støy på havmiljø - rapport til Miljødirektoratet om kunnskapsstatus 

      Kvadsheim, Petter H.; Sivle, Lise D.; Hansen, Rune Roland; Karlsen, Hans Erik (2017-01-13)
      Menneskelig aktivitet har ført til en betydelig økning av støynivået i havet. Økningen i bakgrunnsstøynivået skyldes primært økt skipsfart, som kan maskere dyrenes evne til akustisk kommunikasjon, til å finne og fange ...

    • Northern bottlenose whales in a pristine environment respond strongly to close and distant navy sonar signals 

      Wensveen, Paul J.; Isojunno, Saana; Hansen, Rune Roland; von Benda-Beckmann, Alexander M.; Kleivane, Lars; van IJsselmuide, Sander; Lam, Frans-Peter Alexander; Kvadsheim, Petter Helgevold; DeRuiter, Stacy L.; Curé, Charlotte; Narazaki, Tomoko; Tyack, Peter Lloyd; Miller, Patrick James O'Malley (2019-03-20)
      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 ...

    • Predicting acoustic dose associated with marine mammal behavioural responses to sound as detected with fixed acoustic recorders and satellite tags 

      von Benda-Beckmann, Alexander M.; Wensveen, Paul Jacobus; Prior, Mark; Ainslie, Michael; Hansen, Rune Roland; Isojunno, Saana; Lam, Frans-Peter Alexander; Kvadsheim, Petter Helgevold; Miller, Patrick James O'Malley (2019-03-08)
      To understand the consequences of underwater noise exposure for cetaceans, there is a need for assessments of behavioural responses over increased spatial and temporal scales. Bottom-moored acoustic recorders and satellite ...