Meiobenthos at the Arctic Håkon Mosby Mud Volcano
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 wi...
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PANGAEA
2006
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.761909 2023-05-15T14:25:53+02:00 Meiobenthos at the Arctic Håkon Mosby Mud Volcano Van Gaever, Saskia Moodley, Leon de Beer, Dirk Vanreusel, Ann 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 2006-06-21 application/zip, 30 datasets https://doi.pangaea.de/10.1594/PANGAEA.761909 https://doi.org/10.1594/PANGAEA.761909 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.761909 https://doi.org/10.1594/PANGAEA.761909 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Van Gaever, Saskia; Moodley, Leon; de Beer, Dirk; Vanreusel, Ann (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 ARK-XIX/3b HERMES Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Norwegian Sea Polarstern PS64 PS64/312-1 PS64/313-1 PS64/314-1 PS64/321-1 PS64/323-1 PS64/324-1 PS64/356-1 PS64/357-1 PS64/362-1 PS64/363-1a PS64/363-1b PS64/367-1 PS64/390-1a PS64/390-1c PS64/395-1 Dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.761909 https://doi.org/10.3354/meps321143 2023-01-20T07:32:12Z 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. Dataset Arctic Arctic Barents Sea Norwegian Sea Copepods PANGAEA - Data Publisher for Earth & Environmental Science Arctic Barents Sea Norwegian Sea ENVELOPE(13.435000,14.756800,72.004400,71.699000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ARK-XIX/3b HERMES Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Norwegian Sea Polarstern PS64 PS64/312-1 PS64/313-1 PS64/314-1 PS64/321-1 PS64/323-1 PS64/324-1 PS64/356-1 PS64/357-1 PS64/362-1 PS64/363-1a PS64/363-1b PS64/367-1 PS64/390-1a PS64/390-1c PS64/395-1 |
spellingShingle |
ARK-XIX/3b HERMES Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Norwegian Sea Polarstern PS64 PS64/312-1 PS64/313-1 PS64/314-1 PS64/321-1 PS64/323-1 PS64/324-1 PS64/356-1 PS64/357-1 PS64/362-1 PS64/363-1a PS64/363-1b PS64/367-1 PS64/390-1a PS64/390-1c PS64/395-1 Van Gaever, Saskia Moodley, Leon de Beer, Dirk Vanreusel, Ann Meiobenthos at the Arctic Håkon Mosby Mud Volcano |
topic_facet |
ARK-XIX/3b HERMES Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Norwegian Sea Polarstern PS64 PS64/312-1 PS64/313-1 PS64/314-1 PS64/321-1 PS64/323-1 PS64/324-1 PS64/356-1 PS64/357-1 PS64/362-1 PS64/363-1a PS64/363-1b PS64/367-1 PS64/390-1a PS64/390-1c PS64/395-1 |
description |
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. |
format |
Dataset |
author |
Van Gaever, Saskia Moodley, Leon de Beer, Dirk Vanreusel, Ann |
author_facet |
Van Gaever, Saskia Moodley, Leon de Beer, Dirk Vanreusel, Ann |
author_sort |
Van Gaever, Saskia |
title |
Meiobenthos at the Arctic Håkon Mosby Mud Volcano |
title_short |
Meiobenthos at the Arctic Håkon Mosby Mud Volcano |
title_full |
Meiobenthos at the Arctic Håkon Mosby Mud Volcano |
title_fullStr |
Meiobenthos at the Arctic Håkon Mosby Mud Volcano |
title_full_unstemmed |
Meiobenthos at the Arctic Håkon Mosby Mud Volcano |
title_sort |
meiobenthos at the arctic håkon mosby mud volcano |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.761909 https://doi.org/10.1594/PANGAEA.761909 |
op_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 |
long_lat |
ENVELOPE(13.435000,14.756800,72.004400,71.699000) |
geographic |
Arctic Barents Sea Norwegian Sea |
geographic_facet |
Arctic Barents Sea Norwegian Sea |
genre |
Arctic Arctic Barents Sea Norwegian Sea Copepods |
genre_facet |
Arctic Arctic Barents Sea Norwegian Sea Copepods |
op_source |
Supplement to: Van Gaever, Saskia; Moodley, Leon; de Beer, Dirk; Vanreusel, Ann (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 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.761909 https://doi.org/10.1594/PANGAEA.761909 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.761909 https://doi.org/10.3354/meps321143 |
_version_ |
1766298372416733184 |