Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin
We measured prokaryotic production and respiration in the major water masses of the North Atlantic down to a depth of 4,000 m by following the progression of the two branches of North Atlantic Deep Water (NADW) in the oceanic conveyor belt. Prokaryotic abundance decreased exponentially with depth fr...
Published in: | Limnology and Oceanography |
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Main Authors: | , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | Spanish |
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2018
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Online Access: | http://hdl.handle.net/10553/1199 https://doi.org/10.4319/lo.2006.51.3.1262 |
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ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/1199 2023-05-15T17:13:52+02:00 Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin Reinthaler, Thomas Aristegui, J. Robinson, Carol Arístegui, Javier Lebaron, Philippe Herndl, Gerhard J. Aken, Hendrik van Veth, Cornelis Aristegui, Javier Reinthaler, Thomas Lebaron, Philippe Herndl, Gerhard Robinson, Carol 8368531200 7202279291 6602367033 7006816204 23045392200 7404956954 7005835035 7005513845 Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica 1454644 618266 2576315 227201 769475 17860243 206969 99734 2018-03-01T13:48:54Z http://hdl.handle.net/10553/1199 https://doi.org/10.4319/lo.2006.51.3.1262 spa spa Limnology and Oceanography 243590 0024-3590 2034 http://hdl.handle.net/10553/1199 doi:10.4319/lo.2006.51.3.1262 33744901143 000237748300005 341446 -;2728;-;-;-;-;-;- 1273 1262 51 WOS:000237748300005 D-5833-2013 E-6563-2013 A-5329-2011 B-1513-2013 F-7649-2011 -;2728;-;-;-;-;-;- info:eu-repo/semantics/openAccess Limnology and Oceanography[ISSN 0024-3590],v. 51, p. 1262-1273 Investigación Respiración en el océano Article info:eu-repo/semantics/article 2018 ftunivlaspalmas https://doi.org/10.4319/lo.2006.51.3.1262 2019-12-18T00:07:19Z We measured prokaryotic production and respiration in the major water masses of the North Atlantic down to a depth of 4,000 m by following the progression of the two branches of North Atlantic Deep Water (NADW) in the oceanic conveyor belt. Prokaryotic abundance decreased exponentially with depth from 3 to 0.4 3 105 cells mL21 in the eastern basin and from 3.6 to 0.3 3 105 cells mL21 in the western basin. Prokaryotic production measured via 3H-leucine incorporation showed a similar pattern to that of prokaryotic abundance and decreased with depth from 9.2 to 1.1 mmol C m23 d21 in the eastern and from 20.6 to 1.2 mmol C m23 d21 in the western basin. Prokaryo tic respiration, measured via oxygen consumption, ranged from about 300 to 60 mmol C m23 d21 from ,100 m depth to the NADW. Prokaryotic growth efficiencies of ,2% in the deep waters (depth range 1,200–4,000 m) indicate that the prokaryotic carbon demand exceeds dissolved organic matter input and surface primary production by 2 orders of magnitude. Cell-specific prokaryotic production was rather constant throughout the water column, ranging from 15 to 32 3 1023 fmol C cell21 d21 in the eastern and from 35 to 58 3 1023 fmol C cell21 d21 in the western basin. Along with increasing cell-specific respiration towards the deep water masses and the relatively short turnover time of the prokaryotic community in the dark ocean (34–54 d), prokaryotic activity in the meso- and bathypelagic North Atlantic might be higher than previously assumed. Article in Journal/Newspaper NADW North Atlantic Deep Water North Atlantic Universidad de Las Palmas de Gran Canaria: Acceda Western Basin Limnology and Oceanography 51 3 1262 1273 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
Spanish |
topic |
Investigación Respiración en el océano |
spellingShingle |
Investigación Respiración en el océano Reinthaler, Thomas Aristegui, J. Robinson, Carol Arístegui, Javier Lebaron, Philippe Herndl, Gerhard J. Aken, Hendrik van Veth, Cornelis Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin |
topic_facet |
Investigación Respiración en el océano |
description |
We measured prokaryotic production and respiration in the major water masses of the North Atlantic down to a depth of 4,000 m by following the progression of the two branches of North Atlantic Deep Water (NADW) in the oceanic conveyor belt. Prokaryotic abundance decreased exponentially with depth from 3 to 0.4 3 105 cells mL21 in the eastern basin and from 3.6 to 0.3 3 105 cells mL21 in the western basin. Prokaryotic production measured via 3H-leucine incorporation showed a similar pattern to that of prokaryotic abundance and decreased with depth from 9.2 to 1.1 mmol C m23 d21 in the eastern and from 20.6 to 1.2 mmol C m23 d21 in the western basin. Prokaryo tic respiration, measured via oxygen consumption, ranged from about 300 to 60 mmol C m23 d21 from ,100 m depth to the NADW. Prokaryotic growth efficiencies of ,2% in the deep waters (depth range 1,200–4,000 m) indicate that the prokaryotic carbon demand exceeds dissolved organic matter input and surface primary production by 2 orders of magnitude. Cell-specific prokaryotic production was rather constant throughout the water column, ranging from 15 to 32 3 1023 fmol C cell21 d21 in the eastern and from 35 to 58 3 1023 fmol C cell21 d21 in the western basin. Along with increasing cell-specific respiration towards the deep water masses and the relatively short turnover time of the prokaryotic community in the dark ocean (34–54 d), prokaryotic activity in the meso- and bathypelagic North Atlantic might be higher than previously assumed. |
author2 |
Aristegui, Javier Reinthaler, Thomas Lebaron, Philippe Herndl, Gerhard Robinson, Carol 8368531200 7202279291 6602367033 7006816204 23045392200 7404956954 7005835035 7005513845 Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica Biología Facultad de Ciencias del Mar Centro de Centro de Biotecnología Marina Oceanografía biológica 1454644 618266 2576315 227201 769475 17860243 206969 99734 |
format |
Article in Journal/Newspaper |
author |
Reinthaler, Thomas Aristegui, J. Robinson, Carol Arístegui, Javier Lebaron, Philippe Herndl, Gerhard J. Aken, Hendrik van Veth, Cornelis |
author_facet |
Reinthaler, Thomas Aristegui, J. Robinson, Carol Arístegui, Javier Lebaron, Philippe Herndl, Gerhard J. Aken, Hendrik van Veth, Cornelis |
author_sort |
Reinthaler, Thomas |
title |
Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin |
title_short |
Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin |
title_full |
Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin |
title_fullStr |
Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin |
title_full_unstemmed |
Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin |
title_sort |
prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western north atlantic basin |
publishDate |
2018 |
url |
http://hdl.handle.net/10553/1199 https://doi.org/10.4319/lo.2006.51.3.1262 |
geographic |
Western Basin |
geographic_facet |
Western Basin |
genre |
NADW North Atlantic Deep Water North Atlantic |
genre_facet |
NADW North Atlantic Deep Water North Atlantic |
op_source |
Limnology and Oceanography[ISSN 0024-3590],v. 51, p. 1262-1273 |
op_relation |
Limnology and Oceanography 243590 0024-3590 2034 http://hdl.handle.net/10553/1199 doi:10.4319/lo.2006.51.3.1262 33744901143 000237748300005 341446 -;2728;-;-;-;-;-;- 1273 1262 51 WOS:000237748300005 D-5833-2013 E-6563-2013 A-5329-2011 B-1513-2013 F-7649-2011 -;2728;-;-;-;-;-;- |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.4319/lo.2006.51.3.1262 |
container_title |
Limnology and Oceanography |
container_volume |
51 |
container_issue |
3 |
container_start_page |
1262 |
op_container_end_page |
1273 |
_version_ |
1766071058812633088 |