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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 [dataset bibliography]. University of Pretoria, Department of Zoology & Entomology, PANGAEA, https://doi.org/10.1594/PANGAEA.793267

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Abstract:
The potential effects of ocean warming on marine predators are largely unknown, though the impact on the distribution of prey in vertical space may have far reaching impacts on diving predators such as southern elephant seals. We used data from satellite-tracked southern elephant seals from Marion Island to investigate the relationship between their dive characteristics (dive depths, dive durations and time-at-depth index values) and environmental variables (temperature at depth, depth of maximum temperature below 100 m, frontal zone and bathymetry) as well as other demographic and behavioural variables (migration stage, age-class, track day and vertical diel strategy). While other variables, such as bathymetry and vertical diel strategy also influenced dive depth, our results consistently indicated a significant influence of temperature at depth on dive depths. This relationship was positive for all groups of animals, indicating that seals dived to deeper depths when foraging in warmer waters. Female seals adjusted their dive depths proportionally more than males in warmer water. Dive durations were also influenced by temperature at depth, though to a lesser extent. Results from time-at-depth indices showed that both male and female seals spent less time at targeted dive depths in warmer water, and were presumably less successful foragers when diving in warmer water. Continued warming of the Southern Ocean may result in the distribution of prey for southern elephant seals shifting either poleward and/or to increasing depths. Marion Island elephant seals are expected to adapt their ranging and diving behaviour accordingly, though such changes may result in greater physiological costs associated with foraging.
Supplement to:
McIntyre, Trevor; Ansorge, Isabelle J; Bornemann, Horst; Plötz, Joachim; Tosh, Cheryl Ann; Bester, Marthán Nieuwoudt (2011): Elephant seal dive behaviour is influenced by ocean temperature: implications for climate change impacts on an ocean predator. Marine Ecology Progress Series, 441, 257-272, https://doi.org/10.3354/meps09383
Project(s):
Marine Mammal Tracking (MMT)
Coverage:
Median Latitude: -48.957781 * Median Longitude: 27.443202 * South-bound Latitude: -70.084000 * West-bound Longitude: -18.433000 * North-bound Latitude: -32.071000 * East-bound Longitude: 57.197500
Date/Time Start: 2004-04-17T19:39:00 * Date/Time End: 2009-02-10T15:20:00
Event(s):
MAR2004_sel_a_f_10 * Latitude Start: -46.990600 * Longitude Start: 37.499100 * Latitude End: -44.197200 * Longitude End: 27.899600 * Date/Time Start: 2004-04-12T12:00:00 * Date/Time End: 2004-05-31T19:22:00 * Location: Southern Ocean - Indian sector * Campaign: MAR2004 * Basis: Marion Island Research Station * Method/Device: Marine endotherm (MET) * Comment: Mirounga leonina, subadualt male
MAR2004_sel_s_m_17 * Latitude Start: -46.877500 * Longitude Start: 37.861500 * Latitude End: -46.755700 * Longitude End: 37.949900 * Date/Time Start: 2004-04-12T12:00:00 * Date/Time End: 2004-11-22T11:04:00 * Location: Southern Ocean - Indian sector * Campaign: MAR2004 * Basis: Marion Island Research Station * Method/Device: Marine endotherm (MET) * Comment: Mirounga leonina, subadualt male
MAR2004_sel_u_m_09 * Latitude Start: -46.860800 * Longitude Start: 37.820100 * Latitude End: -46.481200 * Longitude End: 52.052200 * Date/Time Start: 2004-04-22T17:52:00 * Date/Time End: 2005-01-09T18:00:00 * Location: Southern Ocean - Indian sector * Campaign: MAR2004 * Basis: Marion Island Research Station * Method/Device: Marine endotherm (MET) * Comment: Mirounga leonina, subadualt male
Change history:
2022-02-10T12:54:40 – Dataset was converted to collection (bibliography); references to deleted datasets were replaced by newer versions.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
50 datasets

Datasets listed in this bibliography

  1. Bester, MN; Bornemann, H; Plötz, J et al. (2006): Water temperature data from southern elephant seal MAR2005_sel_a_f_06 from Marion Island. https://doi.org/10.1594/PANGAEA.441565
  2. Bester, MN; Bornemann, H; Plötz, J et al. (2008): Water temperature data from southern elephant seal MAR2005_sel_s_m_02 from Marion Island. https://doi.org/10.1594/PANGAEA.695226
  3. Bester, MN; Bornemann, H; Plötz, J et al. (2008): Water temperature data from southern elephant seal MAR2005_sel_s_m_03 from Marion Island. https://doi.org/10.1594/PANGAEA.441566
  4. Bester, MN; Bornemann, H; Plötz, J et al. (2008): Water temperature data from southern elephant seal MAR2005_sel_s_m_05 from Marion Island. https://doi.org/10.1594/PANGAEA.441567
  5. 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
  6. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2007): Water temperature data from southern elephant seal MAR2006_sel_s_f_01 from Marion Island. https://doi.org/10.1594/PANGAEA.626509
  7. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2007): Water temperature data from southern elephant seal MAR2006_sel_s_f_02 from Marion Island. https://doi.org/10.1594/PANGAEA.626510
  8. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2007): Water temperature data from southern elephant seal MAR2006_sel_s_m_03 from Marion Island. https://doi.org/10.1594/PANGAEA.626511
  9. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2007): Water temperature data from southern elephant seal MAR2006_sel_s_m_04 from Marion Island. https://doi.org/10.1594/PANGAEA.626512
  10. 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
  11. 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
  12. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2008): Water temperature data from southern elephant seal MAR2007_sel_a_f_16 from Marion Island. https://doi.org/10.1594/PANGAEA.706935
  13. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_07 from Marion Island. https://doi.org/10.1594/PANGAEA.714646
  14. 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
  15. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_09 from Marion Island. https://doi.org/10.1594/PANGAEA.714648
  16. 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
  17. 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
  18. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_m_19 from Marion Island. https://doi.org/10.1594/PANGAEA.714663
  19. 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
  20. 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
  21. 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
  22. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_a_f_21 from Marion Island. https://doi.org/10.1594/PANGAEA.714659
  23. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_a_f_22 from Marion Island. https://doi.org/10.1594/PANGAEA.715220
  24. 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
  25. Bester, MN; Tosh, CA; de Bruyn, PJN et al. (2009): Water temperature data from southern elephant seal MAR2008_sel_a_m_04 from Marion Island. https://doi.org/10.1594/PANGAEA.715221
  26. 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
  27. 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
  28. Plötz, J; Bester, MN; Tosh, CA et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_13 from Marion Island. https://doi.org/10.1594/PANGAEA.714653
  29. 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
  30. Plötz, J; Bester, MN; Tosh, CA et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_f_17 from Marion Island. https://doi.org/10.1594/PANGAEA.714657
  31. 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
  32. Plötz, J; Bester, MN; Tosh, CA et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_m_20 from Marion Island. https://doi.org/10.1594/PANGAEA.714664
  33. Plötz, J; Bester, MN; Tosh, CA et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_m_24 from Marion Island. https://doi.org/10.1594/PANGAEA.714665
  34. Plötz, J; Bester, MN; Tosh, CA et al. (2009): Water temperature and salinity data from southern elephant seal MAR2008_sel_a_m_25 from Marion Island. https://doi.org/10.1594/PANGAEA.714666
  35. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_f_17 from Marion Island. https://doi.org/10.1594/PANGAEA.706936
  36. 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
  37. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_f_19 from Marion Island. https://doi.org/10.1594/PANGAEA.706937
  38. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_f_20 from Marion Island. https://doi.org/10.1594/PANGAEA.706950
  39. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_f_21 from Marion Island. https://doi.org/10.1594/PANGAEA.706938
  40. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_f_22 from Marion Island. https://doi.org/10.1594/PANGAEA.706951
  41. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_m_10 from Marion Island. https://doi.org/10.1594/PANGAEA.706939
  42. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_m_11 from Marion Island. https://doi.org/10.1594/PANGAEA.706940
  43. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_m_12 from Marion Island. https://doi.org/10.1594/PANGAEA.706941
  44. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_m_13 from Marion Island. https://doi.org/10.1594/PANGAEA.706942
  45. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_m_14 from Marion Island. https://doi.org/10.1594/PANGAEA.706943
  46. Plötz, J; Bester, MN; Tosh, CA et al. (2008): Water temperature and salinity data from southern elephant seal MAR2007_sel_a_m_15 from Marion Island. https://doi.org/10.1594/PANGAEA.706944
  47. Stewart, BS; Bester, MN; van den Hoff, J et al. (2005): Water temperature data from southern elephant seal MAR2004_sel_a_f_10 from Marion Island. https://doi.org/10.1594/PANGAEA.281812
  48. Stewart, BS; Bester, MN; van den Hoff, J et al. (2005): Water temperature data from southern elephant seal MAR2004_sel_s_m_17 from Marion Island. https://doi.org/10.1594/PANGAEA.281814
  49. Stewart, BS; Bester, MN; van den Hoff, J et al. (2005): Water temperature data from southern elephant seal MAR2004_sel_u_m_09 from Marion Island. https://doi.org/10.1594/PANGAEA.281815
  50. Stewart, BS; Bester, MN; van den Hoff, J et al. (2005): Water temperature data from southern elephant seal MAR2004_sel_y_m_16 from Marion Island. https://doi.org/10.1594/PANGAEA.281816