Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast
Cold-seep environments and their associated symbiont-bearing megafaunal communities create islands of primary production for macro- and meiofauna in the otherwise monotonous and nutrient-poor deep-sea environment. To examine the spatial variation and distribution patterns of metazoan meiobenthos in...
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Format: | Dataset |
Language: | English |
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PANGAEA
2009
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.777203 https://doi.org/10.1594/PANGAEA.777203 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.777203 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ARK-XIX/3b Håkon Mosby Mud Volcano HERMES HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Nyegga Polarstern Pourquoi Pas ? (2005) PS64 PS64/317_PUC-1 PS64/317_PUC-2 PS64/317_PUC-4 PS64/326_PUC-3 PS64/326_PUC-4 PS64/326_PUC-5 PS64/326_PUC-6 PS64/347_PUC-10 PS64/347_PUC-12 PS64/377_PUC-22 PS64/377_PUC-23 PS64/377_PUC-28 PUC Push corer Storegga North East VICKING VKGD272/PC-1 VKGD272/PC-14 VKGD272/PC-18 VKGD272/PC-8 VKGD275/PC-5 VKGD275/PC-6 VKGD277/PC-2 VKGD277/PC-5 VKGMTB2 VKGMTB3 |
spellingShingle |
ARK-XIX/3b Håkon Mosby Mud Volcano HERMES HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Nyegga Polarstern Pourquoi Pas ? (2005) PS64 PS64/317_PUC-1 PS64/317_PUC-2 PS64/317_PUC-4 PS64/326_PUC-3 PS64/326_PUC-4 PS64/326_PUC-5 PS64/326_PUC-6 PS64/347_PUC-10 PS64/347_PUC-12 PS64/377_PUC-22 PS64/377_PUC-23 PS64/377_PUC-28 PUC Push corer Storegga North East VICKING VKGD272/PC-1 VKGD272/PC-14 VKGD272/PC-18 VKGD272/PC-8 VKGD275/PC-5 VKGD275/PC-6 VKGD277/PC-2 VKGD277/PC-5 VKGMTB2 VKGMTB3 Van Gaever, Saskia Olu, Karine Derycke, Sofie Vanreusel, Ann Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast |
topic_facet |
ARK-XIX/3b Håkon Mosby Mud Volcano HERMES HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Nyegga Polarstern Pourquoi Pas ? (2005) PS64 PS64/317_PUC-1 PS64/317_PUC-2 PS64/317_PUC-4 PS64/326_PUC-3 PS64/326_PUC-4 PS64/326_PUC-5 PS64/326_PUC-6 PS64/347_PUC-10 PS64/347_PUC-12 PS64/377_PUC-22 PS64/377_PUC-23 PS64/377_PUC-28 PUC Push corer Storegga North East VICKING VKGD272/PC-1 VKGD272/PC-14 VKGD272/PC-18 VKGD272/PC-8 VKGD275/PC-5 VKGD275/PC-6 VKGD277/PC-2 VKGD277/PC-5 VKGMTB2 VKGMTB3 |
description |
Cold-seep environments and their associated symbiont-bearing megafaunal communities create islands of primary production for macro- and meiofauna in the otherwise monotonous and nutrient-poor deep-sea environment. To examine the spatial variation and distribution patterns of metazoan meiobenthos in different seepage-related habitats, samples were collected in two regions off Norway: several pockmarks associated with the Storegga Slide including the Nyegga pockmark area (730 m; 64°N), and the active, methane-venting Håkon Mosby Mud Volcano (HMMV) west of the Barents Sea (1280 m; 72°N). Based on sediment geochemistry and associated epifauna, three different habitat types were distinguished across the two regions: (1) reduced sediment with suboxic conditions, sometimes covered by bacterial mats, (2) sediment colonised by chemosynthetic, siboglinid tubeworms, and (3) sediment outside the influence of seepage and without a large chemosynthetic fauna. Meiofaunal communities varied strongly in terms of generic diversity and dominance among the different habitat types. Control sites and Siboglinidae polychaete fields both supported high nematode genus richness similar to normal deep-sea sediments, whereas the reduced sediments yielded a genus-poor nematode community dominated by one or two successful species. Meiofaunal densities in the different habitats were negatively correlated with macrobenthic densities. An extremely dense (>11,000 ind. 10 cm**2), mono-specific nematode population appeared to be restricted to the bacterial mats at HMMV. It consisted of a new cryptic species of the Halomonhystera disjuncta complex, which has been described from intertidal habitats in the North Sea. The reduced seep sediments at Nyegga did not yield H. disjuncta but were dominated by Terschellingia longicaudata, another cosmopolitan nematode species known to be abundant in organic-rich, oxygen-poor, shallow-water environments. These observations point to a past or recent connection between margins and shallow-water habitats. |
format |
Dataset |
author |
Van Gaever, Saskia Olu, Karine Derycke, Sofie Vanreusel, Ann |
author_facet |
Van Gaever, Saskia Olu, Karine Derycke, Sofie Vanreusel, Ann |
author_sort |
Van Gaever, Saskia |
title |
Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast |
title_short |
Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast |
title_full |
Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast |
title_fullStr |
Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast |
title_full_unstemmed |
Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast |
title_sort |
meiofauna and nematode abundances from cold seep related habitats along the norwegian coast |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.777203 https://doi.org/10.1594/PANGAEA.777203 |
op_coverage |
MEDIAN LATITUDE: 67.141237 * MEDIAN LONGITUDE: 8.347842 * SOUTH-BOUND LATITUDE: 64.663165 * WEST-BOUND LONGITUDE: 4.981158 * NORTH-BOUND LATITUDE: 72.006000 * EAST-BOUND LONGITUDE: 14.731333 * DATE/TIME START: 2003-06-30T09:46:00 * DATE/TIME END: 2006-06-06T00:01:00 |
long_lat |
ENVELOPE(9.443,9.443,62.612,62.612) ENVELOPE(135.783,135.783,-66.083,-66.083) ENVELOPE(-67.450,-67.450,-67.700,-67.700) ENVELOPE(135.750,135.750,-66.200,-66.200) ENVELOPE(18.251,18.251,68.645,68.645) ENVELOPE(4.981158,14.731333,72.006000,64.663165) |
geographic |
Barents Sea Norway Nyegga Pourquoi Pas Pourquoi-Pas Pourquoi-Pas? Storegga |
geographic_facet |
Barents Sea Norway Nyegga Pourquoi Pas Pourquoi-Pas Pourquoi-Pas? Storegga |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
Supplement to: Van Gaever, Saskia; Olu, Karine; Derycke, Sofie; Vanreusel, Ann (2009): Metazoan meiofaunal communities at cold seeps along the Norwegian margin: Influence of habitat heterogeneity and evidence for connection with shallow-water habitats. Deep Sea Research Part I: Oceanographic Research Papers, 56, 772-785, https://doi.org/10.1016/j.dsr.2008.12.015 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.777203 https://doi.org/10.1594/PANGAEA.777203 |
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.777203 https://doi.org/10.1016/j.dsr.2008.12.015 |
_version_ |
1766370699832721408 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.777203 2023-05-15T15:39:13+02:00 Meiofauna and nematode abundances from cold seep related habitats along the Norwegian coast Van Gaever, Saskia Olu, Karine Derycke, Sofie Vanreusel, Ann MEDIAN LATITUDE: 67.141237 * MEDIAN LONGITUDE: 8.347842 * SOUTH-BOUND LATITUDE: 64.663165 * WEST-BOUND LONGITUDE: 4.981158 * NORTH-BOUND LATITUDE: 72.006000 * EAST-BOUND LONGITUDE: 14.731333 * DATE/TIME START: 2003-06-30T09:46:00 * DATE/TIME END: 2006-06-06T00:01:00 2009-03-07 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.777203 https://doi.org/10.1594/PANGAEA.777203 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.777203 https://doi.org/10.1594/PANGAEA.777203 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; Olu, Karine; Derycke, Sofie; Vanreusel, Ann (2009): Metazoan meiofaunal communities at cold seeps along the Norwegian margin: Influence of habitat heterogeneity and evidence for connection with shallow-water habitats. Deep Sea Research Part I: Oceanographic Research Papers, 56, 772-785, https://doi.org/10.1016/j.dsr.2008.12.015 ARK-XIX/3b Håkon Mosby Mud Volcano HERMES HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas Hotspot Ecosystem Research on the Margins of European Seas MUC MultiCorer Nyegga Polarstern Pourquoi Pas ? (2005) PS64 PS64/317_PUC-1 PS64/317_PUC-2 PS64/317_PUC-4 PS64/326_PUC-3 PS64/326_PUC-4 PS64/326_PUC-5 PS64/326_PUC-6 PS64/347_PUC-10 PS64/347_PUC-12 PS64/377_PUC-22 PS64/377_PUC-23 PS64/377_PUC-28 PUC Push corer Storegga North East VICKING VKGD272/PC-1 VKGD272/PC-14 VKGD272/PC-18 VKGD272/PC-8 VKGD275/PC-5 VKGD275/PC-6 VKGD277/PC-2 VKGD277/PC-5 VKGMTB2 VKGMTB3 Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.777203 https://doi.org/10.1016/j.dsr.2008.12.015 2023-01-20T07:32:26Z Cold-seep environments and their associated symbiont-bearing megafaunal communities create islands of primary production for macro- and meiofauna in the otherwise monotonous and nutrient-poor deep-sea environment. To examine the spatial variation and distribution patterns of metazoan meiobenthos in different seepage-related habitats, samples were collected in two regions off Norway: several pockmarks associated with the Storegga Slide including the Nyegga pockmark area (730 m; 64°N), and the active, methane-venting Håkon Mosby Mud Volcano (HMMV) west of the Barents Sea (1280 m; 72°N). Based on sediment geochemistry and associated epifauna, three different habitat types were distinguished across the two regions: (1) reduced sediment with suboxic conditions, sometimes covered by bacterial mats, (2) sediment colonised by chemosynthetic, siboglinid tubeworms, and (3) sediment outside the influence of seepage and without a large chemosynthetic fauna. Meiofaunal communities varied strongly in terms of generic diversity and dominance among the different habitat types. Control sites and Siboglinidae polychaete fields both supported high nematode genus richness similar to normal deep-sea sediments, whereas the reduced sediments yielded a genus-poor nematode community dominated by one or two successful species. Meiofaunal densities in the different habitats were negatively correlated with macrobenthic densities. An extremely dense (>11,000 ind. 10 cm**2), mono-specific nematode population appeared to be restricted to the bacterial mats at HMMV. It consisted of a new cryptic species of the Halomonhystera disjuncta complex, which has been described from intertidal habitats in the North Sea. The reduced seep sediments at Nyegga did not yield H. disjuncta but were dominated by Terschellingia longicaudata, another cosmopolitan nematode species known to be abundant in organic-rich, oxygen-poor, shallow-water environments. These observations point to a past or recent connection between margins and shallow-water habitats. Dataset Barents Sea PANGAEA - Data Publisher for Earth & Environmental Science Barents Sea Norway Nyegga ENVELOPE(9.443,9.443,62.612,62.612) Pourquoi Pas ENVELOPE(135.783,135.783,-66.083,-66.083) Pourquoi-Pas ENVELOPE(-67.450,-67.450,-67.700,-67.700) Pourquoi-Pas? ENVELOPE(135.750,135.750,-66.200,-66.200) Storegga ENVELOPE(18.251,18.251,68.645,68.645) ENVELOPE(4.981158,14.731333,72.006000,64.663165) |