• Login
    View Item 
    •   FFI Publications Home
    • Publications
    • Articles
    • View Item
    •   FFI Publications Home
    • Publications
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Changes in dive behavior during sonar exposure in killer whales, pilot whales and sperm whales.

    View/Open
    977362.pdf (1.810Mb)
    Date
    2012
    Author
    Doksæter, Lise Henriksen
    Kvadsheim, Petter Helgevold
    Fahlman, Andreas
    Lam, Frans-Peter A.
    Tyack, Peter L.
    Miller, Patrick J.O.
    Metadata
    Show full item record
    Abstract
    Anthropogenic underwater sound in the environment might potentially affect the behavior of marine mammals enough to have an impact on their reproduction and survival. Diving behavior of four killer whales (Orcinus orca), seven long-finned pilot whales (Globicephala melas), and four sperm whales (Physeter macrocephalus) was studied during controlled exposures to naval sonar [low frequency active sonar (LFAS): 1–2 kHz and mid frequency active sonar (MFAS): 6–7 kHz] during three field seasons (2006–2009). Diving behavior was monitored before, during and after sonar exposure using an archival tag placed on the animal with suction cups. The tag recorded the animal's vertical movement, and additional data on horizontal movement and vocalizations were used to determine behavioral modes. Killer whales that were conducting deep dives at sonar onset changed abruptly to shallow diving (ShD) during LFAS, while killer whales conducting deep dives at the onset of MFAS did not alter dive mode. When in ShD mode at sonar onset, killer whales did not change their diving behavior. Pilot and sperm whales performed normal deep dives (NDD) during MFAS exposure. During LFAS exposures, long-finned pilot whales mostly performed fewer deep dives and some sperm whales performed shallower and shorter dives. Acoustic recording data presented previously indicates that deep diving (DD) is associated with feeding. Therefore, the observed changes in dive behavior of the three species could potentially reduce the foraging efficiency of the affected animals.
    URI
    http://hdl.handle.net/20.500.12242/24
    https://ffi-publikasjoner.archive.knowledgearc.net/handle/20.500.12242/24
    DOI
    10.3389/fphys.2012.00400
    Description
    Doksæter, Lise Henriksen; Kvadsheim, Petter Helgevold; Fahlman, Andreas; Lam, Frans-Peter A.; Tyack, Peter L.; Miller, Patrick J.O.. Changes in dive behavior during sonar exposure in killer whales, pilot whales and sperm whales. Frontiers in Physiology 2012 ;Volum 3.
    Collections
    • Articles

    Browse

    All of FFI PublicationsCommunities & CollectionsBy Issue DateAuthorsTitlesThis CollectionBy Issue DateAuthorsTitles

    My Account

    Login

    CONTACT US

    • FFI Kjeller
      FFI, PO Box 25, 2027 Kjeller
    • Office Address: Instituttvn 20,
      Phone 63 80 70 00
    • biblioteket@ffi.no

    HELPFUL

    • About FFI
    • Career
    • Reports

    Sitemap

    • About cookies (cookies)
    • Newsletter
    • Sitemap

    FOLLOW US

     

     

    © Copyright Norwegian Defence Research Establishment
    Powered by KnowledgeArc