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

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    1525292.pdf (1.601Mb)
    Date
    2017
    Author
    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
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    Abstract
    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 four tagged animals, of which one from each location was exposed to naval sonar signals. Statistical analyses were conducted using Mahalanobis distance to compare overall changes in parameters summarising dive behaviour, avoidance behaviour, and potential energetic costs of disturbance. Our quantitative analysis showed that both animals initiated avoidance behaviour, but responses were not associated with unusual dive behaviour. In one exposed animal the avoidance of the sonar source included a 5-fold increase in horizontal speed away from the source, implying a significant increase in metabolic rate. Despite the different environmental settings and exposure contexts, clear changes in behaviour were observed providing the first insights into the nature of responses to human noise for this wide-ranging species.
    URI
    http://hdl.handle.net/20.500.12242/833
    https://ffi-publikasjoner.archive.knowledgearc.net/handle/20.500.12242/833
    DOI
    10.1016/j.marpolbul.2017.05.037
    Description
    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. Avoidance responses of minke whales to 1?4 kHz naval sonar. Marine Pollution Bulletin 2017 ;Volum 121.(1-2) s. 60-68
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