Marine habitats of juvenile southern elephant seals from Marion Island

Show simple item record Tosh, Cheryl A. Steyn, Jumari Bornemann, Horst Van den Hoff, John Stewart, Brent S. Plotz, Joachim Bester, Marthan Nieuwoudt 2013-01-22T07:11:24Z 2012-10-23
dc.description.abstract Marine mammals forage in dynamic environments characterized by variables that are continuously changing in relation to large-scale oceanographic processes. In the present study, behavioural states of satellite-tagged juvenile southern elephant seals (n = 16) from Marion Island were assessed for each reliable location, using variation in turning angle and speed in a state–space modelling framework. A mixed modelling approach was used to analyse the behavioural response of juvenile southern elephant seals to sea-surface temperature and proximity to frontal and bathymetric features. The findings emphasised the importance of frontal features as potentially rewarding areas for foraging juvenile southern elephant seals and provided further evidence of the importance of the area west of Marion Island for higher trophic-level predators. The importance of bathymetric features during the transit phase of juvenile southern elephant seal migrations indicates the use of these features as possible navigational cues. en_US
dc.description.embargo 2016-10-23
dc.description.sponsorship The Alfred Wegener Institute for Polar and Marine Research (Germany), the Department of Science and Technology through the National Research Foundation (South Africa) and the South African National Antarctic Programme. en_US
dc.description.uri en_US
dc.identifier.citation Tosh, CA, Steyn, J, Bornemann, H, Van den Hoff, J, Stewart, BS, Plotz, J & Bester, MN 2012, 'Marine habitats of juvenile southern elephant seals from Marion Island', Aquatic Biology, vol. 17, pp. 71-79. en_US
dc.identifier.issn 1864-7782 (print)
dc.identifier.issn 1864-7790 (online)
dc.identifier.other 10.3354/ab00463
dc.language.iso en en_US
dc.publisher Inter-Research en_US
dc.rights © Inter-Research 2012 en_US
dc.subject Marion Island en_US
dc.subject Southern elephant seals en_US
dc.subject Juveniles en_US
dc.subject Frontal features en_US
dc.title Marine habitats of juvenile southern elephant seals from Marion Island en_US
dc.type Article en_US

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