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Nachtsheim, Dominik A; Jerosch, Kerstin; Hagen, Wilhelm; Plötz, Joachim; Bornemann, Horst (2016): Crabeater seals (Lobodon carcinophaga) in the Weddell Sea during DRE1998 campaign [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.854842, Supplement to: Nachtsheim, DA et al. (2016): Habitat modelling of crabeater seals (Lobodon carcinophaga) in the Weddell Sea using the multivariate approach Maxent. Polar Biology, 40(5), 961-976, https://doi.org/10.1007/s00300-016-2020-0

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Abstract:
The crabeater seal (Lobodon carcinophaga) is the most abundant Antarctic seal and inhabits the circumpolar pack ice zone of the Southern Ocean. Until now, information on important environmental factors affecting its distribution as well as on foraging behaviour is limited. In austral summer 1998, 12 crabeater seals of both sexes and different age classes were equipped with satellitelinked dive recorders at Drescher Inlet (72.85°S, 19.26°E), eastern Weddell Sea. To identify suitable habitat conditions within the Weddell Sea, a maximum entropy (Maxent) modelling approach was implemented. The model revealed that the eastern and southern Weddell Sea is especially suitable for crabeater seals. Distance to the continental shelf break and sea ice concentration were the two most important parameters in modelling species distribution throughout the study period. Model predictions demonstrated that crabeater seals showed a dynamic response to their seasonally changing environment emphasized by the favoured sea ice conditions. Crabeater seals utilized ice-free waters substantially, which is potentially explained by the comparatively low sea ice cover of the Weddell Sea during summer 1998. Diving behaviour was characterized by short (>90 % = 0-4 min) and shallow (>90 % = 0-51 m) dives. This pattern reflects the typical summer and autumn foraging behaviour of crabeater seals. Both the distribution and foraging behaviour corresponded well with the life history of the Antarctic krill (Euphausia superba), the preferred prey of crabeater seals. In general, predicted suitable habitat conditions were congruent with probable habitats of krill, which emphasizes the strong dependence on their primary prey.
Project(s):
Marine Mammal Tracking (MMT)
Coverage:
Median Latitude: -71.624400 * Median Longitude: -19.330648 * South-bound Latitude: -75.798000 * West-bound Longitude: -47.604000 * North-bound Latitude: -65.135000 * East-bound Longitude: 55.483000
Date/Time Start: 1998-01-28T16:20:00 * Date/Time End: 1998-05-29T01:24:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
55 datasets

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Datasets listed in this publication series

  1. Nachtsheim, DA; Jerosch, K; Hagen, W et al. (2015): Crabeater seals (Lobodon carcinophaga) in the Weddell Sea during DRE1998 campaign, with link to files of gridded seal locations and environmental parameters for Maxent analyses. https://doi.org/10.1594/PANGAEA.855006
  2. Nachtsheim, DA; Jerosch, K; Hagen, W et al. (2015): Crabeater seals (Lobodon carcinophaga) in the Weddell Sea during DRE1998 campaign, with link to shapefiles of filtered and unfiltered seal locations for ArcGIS visualisation. https://doi.org/10.1594/PANGAEA.855005
  3. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_a_f_14 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264304
  4. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_a_f_14 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261743
  5. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_a_f_14 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231396
  6. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_a_f_14 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261726
  7. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_a_m_01 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264374
  8. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_a_m_01 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261744
  9. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_a_m_01 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231397
  10. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_a_m_01 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261727
  11. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_a_m_02 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264375
  12. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_a_m_02 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261745
  13. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_a_m_02 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231398
  14. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_a_m_02 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261728
  15. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_a_m_10 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264376
  16. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_a_m_10 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261746
  17. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_a_m_10 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231399
  18. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_a_m_10 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261729
  19. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_s_f_09 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264373
  20. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_s_f_09 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261738
  21. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_s_f_09 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231395
  22. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_s_f_09 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261725
  23. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_s_m_13 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264381
  24. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_s_m_13 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261751
  25. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_s_m_13 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231404
  26. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_s_m_13 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261734
  27. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_y_m_05 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264382
  28. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_y_m_05 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261752
  29. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_y_m_05 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231405
  30. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_y_m_05 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261735
  31. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_y_m_06 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264383
  32. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_y_m_06 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261753
  33. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_y_m_06 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231406
  34. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_y_m_06 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261736
  35. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_y_m_07 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264377
  36. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_y_m_07 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261747
  37. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_y_m_07 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231400
  38. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_y_m_07 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261730
  39. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_y_m_08 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264378
  40. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_y_m_08 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261748
  41. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_y_m_08 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231401
  42. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_y_m_08 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261731
  43. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_y_m_11 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264379
  44. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_y_m_11 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261749
  45. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_y_m_11 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231402
  46. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_y_m_11 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261732
  47. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_y_m_12 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264380
  48. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_y_m_12 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261750
  49. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_y_m_12 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.231403
  50. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_y_m_12 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.261733
  51. Bornemann, H; Plötz, J (2005): Dive depth frequency of crabeater seal DRE1998_cra_y_m_15 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264703
  52. Bornemann, H; Plötz, J (2005): Dive duration frequency of crabeater seal DRE1998_cra_y_m_15 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264704
  53. Bornemann, H; Plötz, J (2005): Maximum dive depth of crabeater seal DRE1998_cra_y_m_15 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264705
  54. Bornemann, H; Plötz, J (2005): At surface behaviour at location on spot of crabeater seal DRE1998_cra_y_m_15 from Drescher Inlet. https://doi.org/10.1594/PANGAEA.264706
  55. Bornemann, H; Plötz, J (2006): Immobilisation dose rates for Crabeater seals during expedition DRE1998. https://doi.org/10.1594/PANGAEA.438929