Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter
The temporal and spatial variability in the water-column distribution of dissolved organic carbon (DOC), and the particulate organic matter, collected both with bottles (POM-b) and in situ pumps (POM-p), was studied around Sedlo and Seine, two seamounts located in subtropical waters of the northeast...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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2009
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Online Access: | http://hdl.handle.net/10553/44510 https://doi.org/10.1016/j.dsr2.2008.12.023 |
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ftunivlaspalmas:oai:accedacris.ulpgc.es:10553/44510 2023-05-15T17:35:06+02:00 Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter Vilas, J. C. Arístegui, J. Kiriakoulakis, K. Wolff, G. A. Espino, M. Polo, Irene Montero, M. F. Mendonça, A. Aristegui, Javier Wolff, George Montero, Maria F. 16432967800 7006816204 55401337900 7201960030 57203196534 35208292600 12041110700 7102553402 24071446100 4705263 227201 3759684 122275 6111529 1515861 1878283 376411 WOS:Vilas, JC WOS:Aristegui, J WOS:Kiriakoulakis, K WOS:Wolff, GA WOS:Espino, M WOS:Polo, I WOS:Montero, MF WOS:Mendonca, A 2009 http://hdl.handle.net/10553/44510 https://doi.org/10.1016/j.dsr2.2008.12.023 eng eng Deep-Sea Research Part II: Topical Studies in Oceanography 56 0967-0645 http://hdl.handle.net/10553/44510 doi:10.1016/j.dsr2.2008.12.023 71849090807 000272984900005 25 WOS:000272984900005 D-5833-2013 B-7982-2018 No ID Sí Deep-Sea Research Part II: Topical Studies in Oceanography [ISSN 0967-0645], v. 56 (25), p. 2618-2630 2510 Oceanografía North Atlantic Sedlo Seine Seamounts Organic matter POC PON DON AOU info:eu-repo/semantics/Article Article 2009 ftunivlaspalmas https://doi.org/10.1016/j.dsr2.2008.12.023 2021-02-03T00:10:29Z The temporal and spatial variability in the water-column distribution of dissolved organic carbon (DOC), and the particulate organic matter, collected both with bottles (POM-b) and in situ pumps (POM-p), was studied around Sedlo and Seine, two seamounts located in subtropical waters of the northeast Atlantic Ocean. Seine and Sedlo presented high POM-b concentrations, compared with reported background concentrations from the Azores-Madeira region, although our results show large regional, temporal and intra-seamount variability around the two seamounts. On the contrary, the POM-p pool, which contributed only 25–56% of the POC-b at surface, represented a fairly constant fraction of the suspended POM. Seine was characterized by higher POC-b concentrations than Sedlo, presumably as result of a combined mechanism of advection from the far field, and retention/accumulation of organic carbon, favoured by the secondary circulation around the seamount. Passive accumulation of POM-b was also evident at the southern flank of Sedlo during one the surveys, coinciding with a change in the local circulation around the seamount caused by the intrusion of a Mediterranean water eddy (Meddy). Average PON concentrations at the two seamounts were comparable in magnitude, and hence the C/N ratios were higher in Seine, adding support to the hypothesis of advection of allochtonous highly refractory organic matter into Seine. The contribution of DOC to the apparent oxygen utilization (AOU) in the upper 1000 m was significantly higher in Seine (25%) than in Sedlo (11%). This points to a proportionally more important role of dissolved material to the overall carbon remineralization rates in the water column of Seine. 2630 2618 Article in Journal/Newspaper North Atlantic Northeast Atlantic Universidad de Las Palmas de Gran Canaria: Acceda Deep Sea Research Part II: Topical Studies in Oceanography 56 25 2618 2630 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
English |
topic |
2510 Oceanografía North Atlantic Sedlo Seine Seamounts Organic matter POC PON DON AOU |
spellingShingle |
2510 Oceanografía North Atlantic Sedlo Seine Seamounts Organic matter POC PON DON AOU Vilas, J. C. Arístegui, J. Kiriakoulakis, K. Wolff, G. A. Espino, M. Polo, Irene Montero, M. F. Mendonça, A. Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter |
topic_facet |
2510 Oceanografía North Atlantic Sedlo Seine Seamounts Organic matter POC PON DON AOU |
description |
The temporal and spatial variability in the water-column distribution of dissolved organic carbon (DOC), and the particulate organic matter, collected both with bottles (POM-b) and in situ pumps (POM-p), was studied around Sedlo and Seine, two seamounts located in subtropical waters of the northeast Atlantic Ocean. Seine and Sedlo presented high POM-b concentrations, compared with reported background concentrations from the Azores-Madeira region, although our results show large regional, temporal and intra-seamount variability around the two seamounts. On the contrary, the POM-p pool, which contributed only 25–56% of the POC-b at surface, represented a fairly constant fraction of the suspended POM. Seine was characterized by higher POC-b concentrations than Sedlo, presumably as result of a combined mechanism of advection from the far field, and retention/accumulation of organic carbon, favoured by the secondary circulation around the seamount. Passive accumulation of POM-b was also evident at the southern flank of Sedlo during one the surveys, coinciding with a change in the local circulation around the seamount caused by the intrusion of a Mediterranean water eddy (Meddy). Average PON concentrations at the two seamounts were comparable in magnitude, and hence the C/N ratios were higher in Seine, adding support to the hypothesis of advection of allochtonous highly refractory organic matter into Seine. The contribution of DOC to the apparent oxygen utilization (AOU) in the upper 1000 m was significantly higher in Seine (25%) than in Sedlo (11%). This points to a proportionally more important role of dissolved material to the overall carbon remineralization rates in the water column of Seine. 2630 2618 |
author2 |
Aristegui, Javier Wolff, George Montero, Maria F. 16432967800 7006816204 55401337900 7201960030 57203196534 35208292600 12041110700 7102553402 24071446100 4705263 227201 3759684 122275 6111529 1515861 1878283 376411 WOS:Vilas, JC WOS:Aristegui, J WOS:Kiriakoulakis, K WOS:Wolff, GA WOS:Espino, M WOS:Polo, I WOS:Montero, MF WOS:Mendonca, A |
format |
Article in Journal/Newspaper |
author |
Vilas, J. C. Arístegui, J. Kiriakoulakis, K. Wolff, G. A. Espino, M. Polo, Irene Montero, M. F. Mendonça, A. |
author_facet |
Vilas, J. C. Arístegui, J. Kiriakoulakis, K. Wolff, G. A. Espino, M. Polo, Irene Montero, M. F. Mendonça, A. |
author_sort |
Vilas, J. C. |
title |
Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter |
title_short |
Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter |
title_full |
Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter |
title_fullStr |
Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter |
title_full_unstemmed |
Seamounts and organic matter-Is there an effect? The case of Sedlo and Seine Seamounts: Part 1. Distributions of dissolved and particulate organic matter |
title_sort |
seamounts and organic matter-is there an effect? the case of sedlo and seine seamounts: part 1. distributions of dissolved and particulate organic matter |
publishDate |
2009 |
url |
http://hdl.handle.net/10553/44510 https://doi.org/10.1016/j.dsr2.2008.12.023 |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_source |
Deep-Sea Research Part II: Topical Studies in Oceanography [ISSN 0967-0645], v. 56 (25), p. 2618-2630 |
op_relation |
Deep-Sea Research Part II: Topical Studies in Oceanography 56 0967-0645 http://hdl.handle.net/10553/44510 doi:10.1016/j.dsr2.2008.12.023 71849090807 000272984900005 25 WOS:000272984900005 D-5833-2013 B-7982-2018 No ID Sí |
op_doi |
https://doi.org/10.1016/j.dsr2.2008.12.023 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
56 |
container_issue |
25 |
container_start_page |
2618 |
op_container_end_page |
2630 |
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