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Felden, Janine; Lichtschlag, Anna; Wenzhöfer, Frank; de Beer, Dirk; Feseker, Tomas; Pop Ristova, Petra; de Lange, Gert J; Boetius, Antje (2013): Limitations of microbial hydrocarbon degradation at the Amon Mud Volcano (Nile Deep Sea Fan) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.804779, Supplement to: Felden, J et al. (2013): Limitations of microbial hydrocarbon degradation at the Amon mud volcano (Nile deep-sea fan). Biogeosciences, 10, 3269-3283, https://doi.org/10.5194/bg-10-3269-2013

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Abstract:
The Amon mud volcano (MV), located at 1250 m water depth on the Nile Deep Sea Fan, is known for its active emission of methane and non-methane hydrocarbons into the hydrosphere. Previous investigations showed a low efficiency of hydrocarbon-degrading anaerobic microbial communities inhabiting the Amon MV center in the presence of sulphate and hydrocarbons in the seeping subsurface fluids. By comparing spatial and temporal patterns of in situ biogeochemical fluxes, temperature gradients, pore water composition and microbial activities over three years, we investigated why the activity of anaerobic hydrocarbon degraders can be low despite high energy supplies. We found that the central dome of the Amon MV, as well as a lateral mud flow at its base, showed signs of recent exposure of hot subsurface muds lacking active hydrocarbon degrading communities. In these highly disturbed areas, anaerobic degradation of methane was less than 2% of the methane flux. Rather high oxygen consumption rates compared to low sulphide production suggest a faster development of more rapidly growing aerobic hydrocarbon degraders in highly disturbed areas. In contrast, the more stabilized muds surrounding the central gas and fluid conduits hosted active anaerobic hydrocarbon-degrading microbial communities. Furthermore, within three years, cell numbers and hydrocarbon degrading activity increased at the gas-seeping sites. The low microbial activity in the hydrocarbon-vented areas of Amon mud volcano is thus a consequence of kinetic limitations by heat and mud expulsion, whereas most of the outer mud volcano area is limited by hydrocarbon transport.
Project(s):
Hotspot Ecosystem Research and Mans Impact On European Seas (HERMIONE)
Hotspot Ecosystem Research on the Margins of European Seas (HERMES)
Processes at the Passive Continental Margins (MEDIFLUX)
Funding:
Seventh Framework Programme (FP7), grant/award no. 226354: Hotspot Ecosystem Research and Mans Impact On European Seas
Sixth Framework Programme (FP6), grant/award no. 511234: Hotspot Ecosystem Research on the Margins of European Seas
Coverage:
Median Latitude: 32.368434 * Median Longitude: 31.705366 * South-bound Latitude: 32.357330 * West-bound Longitude: 31.541160 * North-bound Latitude: 32.370100 * East-bound Longitude: 31.711130
Date/Time Start: 2006-10-24T04:58:00 * Date/Time End: 2009-11-13T15:22:27
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
58 datasets

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Datasets listed in this publication series

  1. Felden, J; Boetius, A (2013): Single cell abundances of Amon mud volcano sediments measured at station MSM13/3_929-1_PUC22. https://doi.org/10.1594/PANGAEA.809176
  2. Felden, J; Boetius, A (2013): Single cell abundances of Amon mud volcano sediments measured at station MSM13/3_933-1_PUC13. https://doi.org/10.1594/PANGAEA.809177
  3. Felden, J; Boetius, A (2013): Single cell abundances of Amon mud volcano sediments measured at station MSM13/3_947-1_PUC31. https://doi.org/10.1594/PANGAEA.809178
  4. Felden, J; Boetius, A (2013): Single cell abundances of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC2. https://doi.org/10.1594/PANGAEA.809181
  5. Felden, J; Boetius, A (2013): Single cell abundances of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC15. https://doi.org/10.1594/PANGAEA.809180
  6. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_757_PUC-10. https://doi.org/10.1594/PANGAEA.738339
  7. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_757_PUC-22. https://doi.org/10.1594/PANGAEA.738341
  8. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_760_PUC-39. https://doi.org/10.1594/PANGAEA.738342
  9. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_760_PUC-41. https://doi.org/10.1594/PANGAEA.738343
  10. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_760_PUC-45. https://doi.org/10.1594/PANGAEA.738344
  11. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_760_PUC-48. https://doi.org/10.1594/PANGAEA.738345
  12. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_765_PUC-14. https://doi.org/10.1594/PANGAEA.738346
  13. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_765_PUC-46. https://doi.org/10.1594/PANGAEA.738347
  14. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_765_PUC-47. https://doi.org/10.1594/PANGAEA.738348
  15. Lichtschlag, A; Boetius, A; Felden, J et al. (2010): Pore water geochemistry of Amon mud volcano sediments measured at station M70/2a_765_PUC-52. https://doi.org/10.1594/PANGAEA.738349
  16. Lichtschlag, A; Boetius, A; de Beer, D (2013): High resolution in situ microsensor measurements of Amon mud volcano sediments measured at station M70/2b_825_PROF-1. https://doi.org/10.1594/PANGAEA.809982
  17. Lichtschlag, A; Boetius, A; de Beer, D (2013): High resolution in situ microsensor measurements of Amon mud volcano sediments measured at station M70/2b_825_PROF-2. https://doi.org/10.1594/PANGAEA.809977
  18. Pop Ristova, P; Wenzhöfer, F (2013): High resolution in situ microsensor measurements of Amon mud volcano sediments measured at station MSM13/3_947-1_MICP7. https://doi.org/10.1594/PANGAEA.810005
  19. Pop Ristova, P; Wenzhöfer, F (2013): High resolution in situ microsensor measurements of Amon mud volcano sediments measured at station MSM13/3_971-1_MICP11. https://doi.org/10.1594/PANGAEA.809998
  20. Pop Ristova, P; Wenzhöfer, F (2013): High resolution in situ microsensor measurements of Amon mud volcano sediments measured at station MSM13/3_971-1_MICP12. https://doi.org/10.1594/PANGAEA.810001
  21. Felden, J; Boetius, A (2011): Sulphate reduction rates of Amon mud volcano sediments measured at stationM70/2a_757_PUC-11. https://doi.org/10.1594/PANGAEA.770183
  22. Felden, J; Boetius, A (2011): Single cell abundances of Amon mud volcano sediments measured at station M70/2a_757_PUC-52. https://doi.org/10.1594/PANGAEA.770184
  23. Felden, J; Boetius, A (2011): Sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_760_PUC-12. https://doi.org/10.1594/PANGAEA.770188
  24. Felden, J; Boetius, A (2011): Methane oxidation rates of Amon mud volcano sediments measured at station M70/2a_760_PUC-15. https://doi.org/10.1594/PANGAEA.770189
  25. Felden, J; Boetius, A (2011): Sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_760_PUC-25. https://doi.org/10.1594/PANGAEA.770190
  26. Felden, J; Boetius, A (2011): Single cell abundances of Amon mud volcano sediments measured at station M70/2a_760_PUC-33. https://doi.org/10.1594/PANGAEA.770191
  27. Felden, J; Boetius, A (2011): Single cell abundances of Amon mud volcano sediments measured at station M70/2a_760_PUC-40. https://doi.org/10.1594/PANGAEA.770192
  28. Felden, J; Boetius, A (2011): Methane oxidation rates of Amon mud volcano sediments measured at station M70/2a_760_PUC-44. https://doi.org/10.1594/PANGAEA.770193
  29. Felden, J; Boetius, A (2011): Sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_760_PUC-53. https://doi.org/10.1594/PANGAEA.770194
  30. Felden, J; Boetius, A (2011): Single cell abundances, methane oxidation and sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_763. https://doi.org/10.1594/PANGAEA.770195
  31. Felden, J; Boetius, A (2011): Methane oxidation rates of Amon mud volcano sediments measured at station M70/2a_765_PUC-6. https://doi.org/10.1594/PANGAEA.770200
  32. Felden, J; Boetius, A (2011): Methane oxidation and sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_765_PUC-8. https://doi.org/10.1594/PANGAEA.770202
  33. Felden, J; Boetius, A (2011): Single cell abundances and sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_765_PUC-26. https://doi.org/10.1594/PANGAEA.770196
  34. Felden, J; Boetius, A (2011): Methane oxidation rates of Amon mud volcano sediments measured at station M70/2a_765_PUC-38. https://doi.org/10.1594/PANGAEA.770197
  35. Felden, J; Boetius, A (2011): Sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_765_PUC-42. https://doi.org/10.1594/PANGAEA.770198
  36. Felden, J; Boetius, A (2011): Single cell abundances, methane oxidation and sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_765_PUC-49. https://doi.org/10.1594/PANGAEA.770199
  37. Felden, J; Boetius, A (2011): Methane oxidation and sulphate reduction rates of Amon mud volcano sediments measured at station M70/2a_765_PUC-68. https://doi.org/10.1594/PANGAEA.770201
  38. Felden, J; Boetius, A (2011): Single cell abundances, methane oxidation and sulphate reduction rates of Amon mud volcano sediments measured at station M70/2b_825_PUC-9. https://doi.org/10.1594/PANGAEA.770239
  39. Felden, J; Boetius, A (2011): Methane oxidation rates of Amon mud volcano sediments measured at station M70/2b_825_PUC-11. https://doi.org/10.1594/PANGAEA.770237
  40. Felden, J; Boetius, A (2011): Methane oxidation rates of Amon mud volcano sediments measured at station M70/2b_825_PUC-12. https://doi.org/10.1594/PANGAEA.770238
  41. Felden, J; Boetius, A (2013): Pore water geochemistry of Amon mud volcano sediments measured at station MSM13/3_929-1_PUC20. https://doi.org/10.1594/PANGAEA.809268
  42. Felden, J; Boetius, A (2013): Pore water geochemistry of Amon mud volcano sediments measured at station MSM13/3_933-1_PUC21. https://doi.org/10.1594/PANGAEA.809270
  43. Felden, J; Boetius, A (2013): Pore water geochemistry of Amon mud volcano sediments measured at station MSM13/3_947-1_PUC19. https://doi.org/10.1594/PANGAEA.809271
  44. Felden, J; Boetius, A (2013): Pore water geochemistry of Amon mud volcano sediments measured at station MSM13/3_950-1. https://doi.org/10.1594/PANGAEA.809272
  45. Felden, J; Boetius, A (2013): Pore water geochemistry of Amon mud volcano sediments measured at station MSM13/3_951-1. https://doi.org/10.1594/PANGAEA.809273
  46. Felden, J; Boetius, A (2013): Pore water geochemistry of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC5. https://doi.org/10.1594/PANGAEA.809275
  47. Felden, J; Boetius, A (2013): Pore water geochemistry of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC17. https://doi.org/10.1594/PANGAEA.809274
  48. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_929-1_PUC1. https://doi.org/10.1594/PANGAEA.809202
  49. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_929-1_PUC9. https://doi.org/10.1594/PANGAEA.809203
  50. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_933-1_PUC2. https://doi.org/10.1594/PANGAEA.809205
  51. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_933-1_PUC24. https://doi.org/10.1594/PANGAEA.809206
  52. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_947-1_PUC27. https://doi.org/10.1594/PANGAEA.809207
  53. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_947-1_PUC32. https://doi.org/10.1594/PANGAEA.809209
  54. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC8. https://doi.org/10.1594/PANGAEA.809215
  55. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC19. https://doi.org/10.1594/PANGAEA.809213
  56. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC23. https://doi.org/10.1594/PANGAEA.809214
  57. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC110. https://doi.org/10.1594/PANGAEA.809210
  58. Felden, J; Bienhold, C; Boetius, A (2013): Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_968-1_PUC117. https://doi.org/10.1594/PANGAEA.809212