Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago
We investigated organic matter (OM) quantity, nutritional quality and degradation rates, as well as abundance and biodiversity of meiofauna and nematodes along the deep continental margin off Spitsbergen, in the Svalbard Archipelago. Sediment samples were collected in July 2010 and 2011 along a bath...
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ftunicagliariris:oai:iris.unica.it:11584/150563 2024-04-21T07:55:48+00:00 Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago PUSCEDDU, ANTONIO Carugati, L Gambi, C Mienert, J Petani, B Sanchez Vidal, A Canals, M Heussner, S Danovaro, R. Pusceddu, Antonio Carugati, L Gambi, C Mienert, J Petani, B Sanchez Vidal, A Canals, M Heussner, S Danovaro, R. 2016 http://hdl.handle.net/11584/150563 https://doi.org/10.1016/j.dsr.2015.11.004 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000368750900005 volume:107 firstpage:48 lastpage:58 numberofpages:11 journal:DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS http://hdl.handle.net/11584/150563 doi:10.1016/j.dsr.2015.11.004 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84949033052 info:eu-repo/semantics/closedAccess Arctic margin Biodiversity Currents Meiofauna Nematodes Organic matter Aquatic science Oceanography info:eu-repo/semantics/article 2016 ftunicagliariris https://doi.org/10.1016/j.dsr.2015.11.004 2024-03-25T16:19:40Z We investigated organic matter (OM) quantity, nutritional quality and degradation rates, as well as abundance and biodiversity of meiofauna and nematodes along the deep continental margin off Spitsbergen, in the Svalbard Archipelago. Sediment samples were collected in July 2010 and 2011 along a bathymetric gradient between 600 m and 2000 m depth, and total mass flux measured at the same depths from July 2010 to July 2011. In both sampling periods sedimentary OM contents and C degradation rates increased significantly with water depth, whereas OM nutritional quality was generally higher at shallower depths, with the unique exception at 600 m depth in 2010. Meiofaunal abundance and biomass (largely dominated by nematodes) showed the highest values at intermediate depths (ca 1500 m) in both sampling periods. The richness of meiofaunal higher taxa and nematode species richness did not vary significantly with water depth in both sampling periods. We suggest here that patterns in OM quantity, C degradation rates, and meiofauna community composition in 2011 were likely influenced by the intensification of the warm West Spitsbergen Current (WSC). We hypothesize that the intensity of the WSC inflow to the Arctic Ocean could have an important role on benthic biodiversity and functioning of deep-sea Arctic ecosystems Article in Journal/Newspaper Arctic Ocean Svalbard Spitsbergen Università degli Studi di Cagliari: UNICA IRIS Deep Sea Research Part I: Oceanographic Research Papers 107 48 58 |
institution |
Open Polar |
collection |
Università degli Studi di Cagliari: UNICA IRIS |
op_collection_id |
ftunicagliariris |
language |
English |
topic |
Arctic margin Biodiversity Currents Meiofauna Nematodes Organic matter Aquatic science Oceanography |
spellingShingle |
Arctic margin Biodiversity Currents Meiofauna Nematodes Organic matter Aquatic science Oceanography PUSCEDDU, ANTONIO Carugati, L Gambi, C Mienert, J Petani, B Sanchez Vidal, A Canals, M Heussner, S Danovaro, R. Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago |
topic_facet |
Arctic margin Biodiversity Currents Meiofauna Nematodes Organic matter Aquatic science Oceanography |
description |
We investigated organic matter (OM) quantity, nutritional quality and degradation rates, as well as abundance and biodiversity of meiofauna and nematodes along the deep continental margin off Spitsbergen, in the Svalbard Archipelago. Sediment samples were collected in July 2010 and 2011 along a bathymetric gradient between 600 m and 2000 m depth, and total mass flux measured at the same depths from July 2010 to July 2011. In both sampling periods sedimentary OM contents and C degradation rates increased significantly with water depth, whereas OM nutritional quality was generally higher at shallower depths, with the unique exception at 600 m depth in 2010. Meiofaunal abundance and biomass (largely dominated by nematodes) showed the highest values at intermediate depths (ca 1500 m) in both sampling periods. The richness of meiofaunal higher taxa and nematode species richness did not vary significantly with water depth in both sampling periods. We suggest here that patterns in OM quantity, C degradation rates, and meiofauna community composition in 2011 were likely influenced by the intensification of the warm West Spitsbergen Current (WSC). We hypothesize that the intensity of the WSC inflow to the Arctic Ocean could have an important role on benthic biodiversity and functioning of deep-sea Arctic ecosystems |
author2 |
Pusceddu, Antonio Carugati, L Gambi, C Mienert, J Petani, B Sanchez Vidal, A Canals, M Heussner, S Danovaro, R. |
format |
Article in Journal/Newspaper |
author |
PUSCEDDU, ANTONIO Carugati, L Gambi, C Mienert, J Petani, B Sanchez Vidal, A Canals, M Heussner, S Danovaro, R. |
author_facet |
PUSCEDDU, ANTONIO Carugati, L Gambi, C Mienert, J Petani, B Sanchez Vidal, A Canals, M Heussner, S Danovaro, R. |
author_sort |
PUSCEDDU, ANTONIO |
title |
Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago |
title_short |
Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago |
title_full |
Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago |
title_fullStr |
Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago |
title_full_unstemmed |
Organic matter pools, C turnover and meiofaunal biodiversity in the sediments of the western Spitsbergen deep continental margin, Svalbard Archipelago |
title_sort |
organic matter pools, c turnover and meiofaunal biodiversity in the sediments of the western spitsbergen deep continental margin, svalbard archipelago |
publishDate |
2016 |
url |
http://hdl.handle.net/11584/150563 https://doi.org/10.1016/j.dsr.2015.11.004 |
genre |
Arctic Ocean Svalbard Spitsbergen |
genre_facet |
Arctic Ocean Svalbard Spitsbergen |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000368750900005 volume:107 firstpage:48 lastpage:58 numberofpages:11 journal:DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS http://hdl.handle.net/11584/150563 doi:10.1016/j.dsr.2015.11.004 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84949033052 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2015.11.004 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
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107 |
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48 |
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58 |
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