Prey and seasonal abundance of killer whales at sub-Antartic Marion Island

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dc.contributor.author Reisinger, Ryan Rudolf
dc.contributor.author De Bruyn, P.J. Nico
dc.contributor.author Tosh, Cheryl A.
dc.contributor.author Oosthuizen, W.C. (Wessel Christiaan)
dc.contributor.author Mufanadzo, N. Thomas
dc.contributor.author Bester, Marthan Nieuwoudt
dc.date.accessioned 2012-01-31T06:21:56Z
dc.date.available 2012-01-31T06:21:56Z
dc.date.issued 2011
dc.description.abstract The diet of killer whales Orcinus orca was investigated from 48 predation events observed during 823 sightings at sub-Antarctic Marion Island between 2006 and 2009. From these events, there were 10 cases where prey could be identified. Killer whales fed on fur seals Arctocephalus tropicalis, elephant seals Mirounga leonina and penguins. Constant effort (dedicated) observations (259 hours, 2008–2009) showed that the peak in killer whale abundance was between September and December with a secondary peak between April and May, which coincided with peaks in the abundance of seals and penguins. en
dc.description.librarian nf2012 en
dc.description.sponsorship The Department of Science and Technology (administered through the National Research Foundation) for funding the marine mammal monitoring programme at Marion Island. en_US
dc.description.uri http://www.tandfonline.com/loi/tams20 en_US
dc.identifier.citation Reisinger, RR, De Bruyn, PJN, Tosh, CA, Oosthuizen, WC, Mufanadzo, NT & Bester, MN 2011, 'Prey and seasonal abundance of killer whales at sub-Antartic Marion Island', African journal of Marine Science, vol. 33, no. 1, pp.99-105. en
dc.identifier.issn 1814-232X (print)
dc.identifier.issn 1814-2338 (online)
dc.identifier.other 10.2989/1814232X.2011.572356
dc.identifier.uri http://hdl.handle.net/2263/17938
dc.language.iso en en_US
dc.publisher Taylor & Francis en_US
dc.rights © Taylor & Francis. This is an electronic version of an article published in African Journal of Marine Science, vol. 33, no. 1, pp. 99-105, 2011. African Journal of Marine Science is available online at: http://www.tandfonline.com/loi/tams20. This article is embargoed by the publisher until June 2012. en
dc.subject Orcinus orca en
dc.subject Seasonal occurrence en
dc.subject.lcsh Killer whale -- Food -- Prince Edward Islands -- Marion Island en
dc.subject.lcsh Predation (Biology) -- Prince Edward Islands -- Marion Island en
dc.subject.lcsh Seals (Animals) -- Predators of -- Prince Edward Islands -- Marion Island en
dc.title Prey and seasonal abundance of killer whales at sub-Antartic Marion Island en
dc.type Postprint Article en


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