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Massie, Philip P; McIntyre, Trevor; Ryan, Peter G; Bester, Marthán Nieuwoudt; Bornemann, Horst; Ansorge, Isabelle J (2015): Water temperature data from southern elephant seal from Marion Island with links to datasets. PANGAEA, https://doi.org/10.1594/PANGAEA.150014

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Abstract:
As the Antarctic Circumpolar Current crosses the South-West Indian Ocean Ridge, it creates an extensive eddy field characterised by high sea level anomaly variability. We investigated the diving behaviour of female southern elephant seals from Marion Island during their post-moult migrations in relation to this eddy field in order to determine its role in the animals' at-sea dispersal. Most seals dived within the region significantly more often than predicted by chance, and these dives were generally shallower and shorter than dives outside the eddy field. Mixed effects models estimated reductions of 44.33 ± 3.00 m (maximum depth) and 6.37 ± 0.10 min (dive duration) as a result of diving within the region, along with low between-seal variability (maximum depth: 5.5 % and dive duration: 8.4 %). U-shaped dives increased in frequency inside the eddy field, whereas W-shaped dives with multiple vertical movements decreased. Results suggest that Marion Island's adult female elephant seals' dives are characterised by lowered cost-of-transport when they encounter the eddy field during the start and end of their post-moult migrations. This might result from changes in buoyancy associated with varying body condition upon leaving and returning to the island. Our results do not suggest that the eddy field is a vital foraging ground for Marion Island's southern elephant seals. However, because seals preferentially travel through this area and likely forage opportunistically while minimising transport costs, we hypothesise that climate-mediated changes in the nature or position of this region may alter the seals' at-sea dispersal patterns.
Supplement to:
Massie, Philip P; McIntyre, Trevor; Ryan, Peter G; Bester, Marthán Nieuwoudt; Bornemann, Horst; Ansorge, Isabelle J (2015): The role of eddies in the diving behaviour of female southern elephant seals. Polar Biology, 11 pp, https://doi.org/10.1007/s00300-015-1782-0
Related to:
McIntyre, Trevor; Ansorge, Isabelle J; Bornemann, Horst; Plötz, Joachim; Tosh, Cheryl Ann; Bester, Marthán Nieuwoudt (2011): Ocean temperature measured by elephant seal-CTDs in the Southern Ocean with links to datasets. University of Pretoria, Department of Zoology & Entomology, PANGAEA, https://doi.org/10.1594/PANGAEA.793267
Project(s):
Coverage:
Median Latitude: -50.979646 * Median Longitude: 24.283653 * South-bound Latitude: -70.084000 * West-bound Longitude: -13.476000 * North-bound Latitude: -32.071000 * East-bound Longitude: 43.353000
Date/Time Start: 2007-02-06T07:33:00 * Date/Time End: 2011-01-05T11:11:00
Event(s):
MAR2007_sel_a_f_02 * Latitude Start: -46.870000 * Longitude Start: 37.860000 * Latitude End: -46.904000 * Longitude End: 37.846000 * Date/Time Start: 2007-02-01T12:10:00 * Date/Time End: 2007-12-30T12:00:00 * Location: Southern Ocean - Indian sector * Campaign: MAR2007 * Basis: Marion Island Research Station * Method/Device: Marine endotherm (MET) * Comment: Mirounga leonina, adult female
MAR2007_sel_a_f_06 * Latitude Start: -46.890000 * Longitude Start: 37.870000 * Latitude End: -46.900000 * Longitude End: 37.894000 * Date/Time Start: 2007-01-30T08:40:00 * Date/Time End: 2007-10-08T11:00:00 * Location: Southern Ocean - Indian sector * Campaign: MAR2007 * Basis: Marion Island Research Station * Method/Device: Marine endotherm (MET) * Comment: Mirounga leonina, adult female
MAR2007_sel_a_f_18 * Latitude Start: -46.841000 * Longitude Start: 37.828000 * Latitude End: -46.849000 * Longitude End: 37.817000 * Date/Time Start: 2007-10-31T08:30:00 * Date/Time End: 2008-01-16T12:00:00 * Location: Southern Ocean - Indian sector * Campaign: MAR2007 * Basis: Marion Island Research Station * Method/Device: Marine endotherm (MET) * Comment: Mirounga leonina, adult female
Comment:
See "Related to:" for further dataset used by this publications.
Change history:
2022-02-10T11:35:36 – Dataset was converted to collection (bibliography); references to deleted datasets were replaced by newer versions.
Size:
22 datasets

Datasets listed in this bibliography

  1. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2008): Water temperature data from southern elephant seal MAR2007_sel_a_m_23 from Marion Island. https://doi.org/10.1594/PANGAEA.706945
  2. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2008): Water temperature data from southern elephant seal MAR2007_sel_a_f_02 from Marion Island. https://doi.org/10.1594/PANGAEA.706933
  3. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2008): Water temperature data from southern elephant seal MAR2007_sel_a_f_06 from Marion Island. https://doi.org/10.1594/PANGAEA.706934
  4. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_08 from Marion Island. https://doi.org/10.1594/PANGAEA.714647
  5. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_12 from Marion Island. https://doi.org/10.1594/PANGAEA.714652
  6. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_14 from Marion Island. https://doi.org/10.1594/PANGAEA.714654
  7. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_a_f_10 from Marion Island. https://doi.org/10.1594/PANGAEA.714649
  8. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_a_f_11 from Marion Island. https://doi.org/10.1594/PANGAEA.714651
  9. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_a_f_15 from Marion Island. https://doi.org/10.1594/PANGAEA.715219
  10. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_a_f_23 from Marion Island. https://doi.org/10.1594/PANGAEA.714661
  11. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_s_m_01 from Marion Island. https://doi.org/10.1594/PANGAEA.714667
  12. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_s_m_03 from Marion Island. https://doi.org/10.1594/PANGAEA.714645
  13. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2010): Water temperature and salinity data from southern elephant seal MAR2009_sel_a_f_05 from Marion Island. https://doi.org/10.1594/PANGAEA.734604
  14. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2010): Water temperature and salinity data from southern elephant seal MAR2009_sel_a_f_06 from Marion Island. https://doi.org/10.1594/PANGAEA.734605
  15. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2010): Water temperature and salinity data from southern elephant seal MAR2009_sel_a_f_07 from Marion Island. https://doi.org/10.1594/PANGAEA.734606
  16. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2010): Water temperature and salinity data from southern elephant seal MAR2009_sel_a_f_08 from Marion Island. https://doi.org/10.1594/PANGAEA.734607
  17. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2010): Water temperature data from southern elephant seal MAR2009_sel_a_f_04 from Marion Island. https://doi.org/10.1594/PANGAEA.734603
  18. Bester, MN; Tosh, CA; McIntyre, T et al. (2011): Water temperature data from southern elephant seal MAR2010_sel_a_f_03 from Marion Island. https://doi.org/10.1594/PANGAEA.758667
  19. Plötz, J; Bester, MN; Tosh, CA et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_16 from Marion Island. https://doi.org/10.1594/PANGAEA.714656
  20. Plötz, J; Bester, MN; Tosh, CA et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_18 from Marion Island. https://doi.org/10.1594/PANGAEA.714658
  21. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_f_18 from Marion Island. https://doi.org/10.1594/PANGAEA.706949
  22. Plötz, J; Bornemann, H; Bester, MN et al. (2011): Water temperature and salinity data from southern elephant seal MAR2010_sel_a_f_01 from Marion Island. https://doi.org/10.1594/PANGAEA.758666