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Van Gaever, Saskia; Moodley, Leon; de Beer, Dirk; Vanreusel, Ann (2006): Meiobenthos at the Arctic Håkon Mosby Mud Volcano [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.761909, Supplement to: Van Gaever, S et al. (2006): Meiobenthos at the Arctic Håkon Mosby Mud Volcano with a parental caring nematode thriving in sulphide-rich sediments. Marine Ecology Progress Series, 321, 143-155, https://doi.org/10.3354/meps321143

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Abstract:
Håkon Mosby Mud Volcano (HMMV, SW Barents Sea slope, 1280 m) is one of the numerous cold methane-venting seeps existing along the continental margins. Analyses of video-guided core samples revealed extreme differences in the diversity and density of the metazoan meiobenthic communities associated with the different sub-habitats (centre, microbial mats, Pogonophora field, outer rim) of this mud volcano. Diversity was lowest in the sulphidic, microbial mat sediments that supported the highest standing stock, with unusually high densities (11000 ind./10 cm**2) of 1 nematode species related to Geomonhystera disjuncta. Stable carbon isotope analyses revealed that this nematode species was thriving on chemosynthetically derived food sources in these sediments. Ovoviviparous reproduction has been identified as an important adaptation of parents securing the survival and development of their brood in this toxic environment. The proliferation of this single species in exclusive association with free-living, sulphide-oxidising bacteria (Beggiatoa) indicates that its dominance is strongly related to trophic specialisation, evidently uncommon among the meiofauna. This chemoautotrophic association was replaced by copepods in the bare, sulphide-free sediments of the volcano's centre, dominated by aerobic methane oxidation as the chemosynthetic process. Copepods and nauplii reached maximum densities and dominance in the volcano's centre (500 ind./10 cm**2). Their strongly depleted carbon isotope signatures indicated a trophic link with methane-derived carbon. This proliferation of only selected meiobenthic species supported by chemosynthetically derived carbon suggests that, in addition to the sediment geochemistry, the associated reduced meiobenthic diversity may equally be related to the trophic resource specificity in HMMV sub-habitats.
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: 71.960980 * Median Longitude: 14.554753 * South-bound Latitude: 71.699000 * West-bound Longitude: 13.435000 * North-bound Latitude: 72.004400 * East-bound Longitude: 14.756800
Date/Time Start: 2003-06-28T10:02:00 * Date/Time End: 2003-07-15T19:44:00
Event(s):
PS64/312-1 * Latitude: 72.004200 * Longitude: 14.724900 * Date/Time: 2003-06-28T10:02:00 * Elevation: -1287.0 m * Location: Norwegian Sea * Campaign: ARK-XIX/3b (PS64) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
PS64/313-1 * Latitude: 72.004400 * Longitude: 14.724800 * Date/Time: 2003-06-28T11:43:00 * Elevation: -1284.0 m * Location: Norwegian Sea * Campaign: ARK-XIX/3b (PS64) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
PS64/314-1 * Latitude: 72.004200 * Longitude: 14.725700 * Date/Time: 2003-06-28T13:11:00 * Elevation: -1286.0 m * Location: Norwegian Sea * Campaign: ARK-XIX/3b (PS64) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
30 datasets

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Datasets listed in this publication series

  1. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/312-1. https://doi.org/10.1594/PANGAEA.666265
  2. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/312-1. https://doi.org/10.1594/PANGAEA.666249
  3. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/313-1. https://doi.org/10.1594/PANGAEA.666266
  4. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/313-1. https://doi.org/10.1594/PANGAEA.666250
  5. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/314-1. https://doi.org/10.1594/PANGAEA.666267
  6. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/314-1. https://doi.org/10.1594/PANGAEA.666251
  7. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/321-1. https://doi.org/10.1594/PANGAEA.666268
  8. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/321-1. https://doi.org/10.1594/PANGAEA.666252
  9. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/323-1. https://doi.org/10.1594/PANGAEA.666269
  10. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/323-1. https://doi.org/10.1594/PANGAEA.666253
  11. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/324-1. https://doi.org/10.1594/PANGAEA.666270
  12. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/324-1. https://doi.org/10.1594/PANGAEA.666254
  13. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/356-1. https://doi.org/10.1594/PANGAEA.666271
  14. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/356-1. https://doi.org/10.1594/PANGAEA.666255
  15. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/357-1. https://doi.org/10.1594/PANGAEA.666272
  16. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/357-1. https://doi.org/10.1594/PANGAEA.666256
  17. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/362-1. https://doi.org/10.1594/PANGAEA.666273
  18. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/362-1. https://doi.org/10.1594/PANGAEA.666257
  19. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/363-1a. https://doi.org/10.1594/PANGAEA.666274
  20. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/363-1a. https://doi.org/10.1594/PANGAEA.666258
  21. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/363-1b. https://doi.org/10.1594/PANGAEA.666275
  22. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/363-1b. https://doi.org/10.1594/PANGAEA.666259
  23. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/367-1. https://doi.org/10.1594/PANGAEA.666276
  24. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/367-1. https://doi.org/10.1594/PANGAEA.666260
  25. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/390-1a. https://doi.org/10.1594/PANGAEA.666277
  26. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/390-1a. https://doi.org/10.1594/PANGAEA.666261
  27. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/390-1c. https://doi.org/10.1594/PANGAEA.666278
  28. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/390-1c. https://doi.org/10.1594/PANGAEA.666262
  29. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/395-1. https://doi.org/10.1594/PANGAEA.666279
  30. Van Gaever, S; Moodley, L; de Beer, D et al. (2007): Nematode genera abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/395-1. https://doi.org/10.1594/PANGAEA.666263