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Lichtschlag, Anna; Felden, Janine; Brüchert, Volker; Boetius, Antje; de Beer, Dirk (2009): Biogeochemical investigation of sediments at the Hakon Mosby Mud Volcano (Barents Sea) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.715022, Supplement to: Lichtschlag, A et al. (2010): Geochemical processes and chemosynthetic primary production in different thiotrophic mats of the Hakon Mosby Mud Volcano (Barents Sea). Limnology and Oceanography, 55(2), 931-949, https://doi.org/10.4319/lo.2010.55.2.0931

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Abstract:
We have investigated if in a cold seep methane or sulfide is used for chemosynthetic primary production and if significant amounts of the sulfide produced by anaerobic oxidation of methane are oxidized geochemically and hence are not available for chemosynthetic production. Geochemically controlled redox reactions and biological turnover were compared in different habitats of the Håkon Mosby Mud Volcano. The center of the mud volcano is characterized by the highest fluid flow, and most primary production by the microbial community depends on oxidation of methane. The small amount of sulfide produced is oxidized geochemically with oxygen or is precipitated with dissolved iron. In the medium flow peripheral Beggiatoa habitat sulfide is largely oxidized biologically. The oxygen and nitrate supply is high enough that Beggiatoa can oxidize the sulfide completely, and chemical sulfide oxidation or precipitation is not important. An internally stored nitrate reservoir with average concentrations of 110 mmol L-1 enables the Beggiatoa to oxidize sulfide anaerobically. The pH profile indicates sequential sulfide oxidation with elemental sulfur as intermediate. Gray thiotrophic mats associated with perturbed sediments showed a high heterogeneity in sulfate turnover and high sulfide fluxes, balanced by the opposing oxygen and nitrate fluxes so that biological oxidation dominates over geochemical sulfide removal processes. The three habitats indicate substantial small-scale variability in carbon fixation pathways either through direct biological use of methane or through indirect carbon fixation of methane-derived carbon dioxide by chemolithotrophic sulfide oxidation.
Project(s):
Hotspot Ecosystem Research on the Margins of European Seas (HERMES)
Funding:
Sixth Framework Programme (FP6), grant/award no. 511234: Hotspot Ecosystem Research on the Margins of European Seas
Coverage:
Median Latitude: 72.003803 * Median Longitude: 14.728270 * South-bound Latitude: 72.002690 * West-bound Longitude: 14.722484 * North-bound Latitude: 72.005255 * East-bound Longitude: 14.732568
Date/Time Start: 2006-06-04T04:01:00 * Date/Time End: 2006-06-08T15:49:00
Event(s):
VKGD276/PC-2 * Latitude: 72.002777 * Longitude: 14.732567 * Date/Time: 2006-06-04T04:01:00 * Elevation: -1258.0 m * Location: Håkon Mosby Mud Volcano * Campaign: VICKING * Basis: Pourquoi Pas ? (2005) * Method/Device: Push corer (PUC)
VKGD276/PC-3 * Latitude: 72.002773 * Longitude: 14.732420 * Date/Time: 2006-06-04T08:18:00 * Elevation: -1258.0 m * Location: Håkon Mosby Mud Volcano * Campaign: VICKING * Basis: Pourquoi Pas ? (2005) * Method/Device: Push corer (PUC) * Comment: CT3, near MIC2 position
VKGD276/PC-5 * Latitude: 72.003110 * Longitude: 14.731352 * Date/Time: 2006-06-04T09:15:00 * Elevation: -1258.0 m * Location: Håkon Mosby Mud Volcano * Campaign: VICKING * Basis: Pourquoi Pas ? (2005) * Method/Device: Push corer (PUC) * Comment: CT5, near MIC3
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
21 datasets

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Datasets listed in this publication series

  1. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-2. https://doi.org/10.1594/PANGAEA.713485
  2. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-5. https://doi.org/10.1594/PANGAEA.730001
  3. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-6. https://doi.org/10.1594/PANGAEA.730002
  4. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-7. https://doi.org/10.1594/PANGAEA.730003
  5. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-8. https://doi.org/10.1594/PANGAEA.730004
  6. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-11. https://doi.org/10.1594/PANGAEA.729999
  7. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-12. https://doi.org/10.1594/PANGAEA.730000
  8. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD276/PC-13. https://doi.org/10.1594/PANGAEA.713484
  9. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): In situ microelectrode measurements at station VKGD277/MIC-4. https://doi.org/10.1594/PANGAEA.734891
  10. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): In situ microelectrode measurements at station VKGD277/MIC-5. https://doi.org/10.1594/PANGAEA.734892
  11. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): In situ microelectrode measurements at station VKGD277/MIC-6. https://doi.org/10.1594/PANGAEA.734893
  12. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD277/PC-1. https://doi.org/10.1594/PANGAEA.713490
  13. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD277/PC-3. https://doi.org/10.1594/PANGAEA.713493
  14. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD277/PC-7. https://doi.org/10.1594/PANGAEA.730005
  15. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGD277/PC-8. https://doi.org/10.1594/PANGAEA.730006
  16. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): In situ microelectrode measurements at station VKGD278/MIC-7. https://doi.org/10.1594/PANGAEA.734899
  17. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): In situ microelectrode measurements at station VKGD278/MIC-8. https://doi.org/10.1594/PANGAEA.734900
  18. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): In situ microelectrode measurements at station VKGD278/MIC-9. https://doi.org/10.1594/PANGAEA.734901
  19. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): In situ microelectrode measurements at station VKGD278/MIC-10. https://doi.org/10.1594/PANGAEA.734898
  20. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Mud volcanism related investigations of sediment core VKGMTB6. https://doi.org/10.1594/PANGAEA.730007
  21. Lichtschlag, A; Felden, J; Brüchert, V et al. (2010): Sulphate reduction rates of sediment core VKGMTB6. https://doi.org/10.1594/PANGAEA.713496