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...

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Published in:Deep Sea Research Part II: Topical Studies in Oceanography
Main Authors: Vilas, J. C., Arístegui, J., Kiriakoulakis, K., Wolff, G. A., Espino, M., Polo, Irene, Montero, M. F., Mendonça, A.
Other Authors: Aristegui, Javier, Wolff, George, Montero, Maria F., 16432967800, 7006816204, 55401337900, 7201960030, 35208292600, 12041110700, 7102553402, 24071446100, 4705263, 227201, 3759684, 122275, 6111529, 1515861, 1878283, 376411
Language:English
Published: 2009
Subjects:
POC
PON
DON
AOU
Online Access:http://hdl.handle.net/10553/44510
https://doi.org/10.1016/j.dsr2.2008.12.023
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spelling ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/44510 2023-05-15T17:35:18+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 35208292600 12041110700 7102553402 24071446100 4705263 227201 3759684 122275 6111529 1515861 1878283 376411 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 0967-0645 http://hdl.handle.net/10553/44510 doi:10.1016/j.dsr2.2008.12.023 WOS:000272984900005 71849090807 000272984900005 2630 25 2618 56 WOS:000272984900005 D-5833-2013 B-7982-2018 No ID 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 2009 ftunivlaspalmas https://doi.org/10.1016/j.dsr2.2008.12.023 2019-09-08T16:41:56Z 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. Other/Unknown Material 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.
author2 Aristegui, Javier
Wolff, George
Montero, Maria F.
16432967800
7006816204
55401337900
7201960030
35208292600
12041110700
7102553402
24071446100
4705263
227201
3759684
122275
6111529
1515861
1878283
376411
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
0967-0645
http://hdl.handle.net/10553/44510
doi:10.1016/j.dsr2.2008.12.023
WOS:000272984900005
71849090807
000272984900005
2630
25
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No ID
op_doi https://doi.org/10.1016/j.dsr2.2008.12.023
container_title Deep Sea Research Part II: Topical Studies in Oceanography
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