Dissolved organic carbon production by microbial populations in the Atlantic Ocean
Dissolved organic carbon (DOC) production by microbial populations was measured at 19 stations in the Atlantic Ocean to quantify the fraction of photoassimilated carbon that flows through the dissolved organic pool at basin scale and to assess the relationship between the percentage of DOC productio...
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crwiley:10.4319/lo.2001.46.6.1370 2024-09-15T18:23:36+00:00 Dissolved organic carbon production by microbial populations in the Atlantic Ocean Teira, Eva José Pazó, María Serret, Pablo Fernández, Emilio 2001 http://dx.doi.org/10.4319/lo.2001.46.6.1370 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2001.46.6.1370 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2001.46.6.1370 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 46, issue 6, page 1370-1377 ISSN 0024-3590 1939-5590 journal-article 2001 crwiley https://doi.org/10.4319/lo.2001.46.6.1370 2024-08-13T04:18:56Z Dissolved organic carbon (DOC) production by microbial populations was measured at 19 stations in the Atlantic Ocean to quantify the fraction of photoassimilated carbon that flows through the dissolved organic pool at basin scale and to assess the relationship between the percentage of DOC production, phytoplankton size structure, and rates of net community production. Experiments were conducted during four cruises carried out between May 1998 and October 1999, covering three upwelling regions: Benguela (SW Africa), Mauritania (NW Africa) and NW Spain, and the oligotrophic North Atlantic subtropical gyre between 30°N and 36°N. Photic zone integrated particulate organic carbon (POC) production rates ranged from 10 to 1,178 mg C m −2 h −1 , thus covering a wide productivity spectrum. The percentage of DOC production with respect to total integrated primary production ranged from 4 to 42%, being larger in oligotrophic, picoplanktonߚdominated waters, where a balanced metabolism of the microbial community was observed, than in productive, net autotrophic waters, where largeߚsized cells formed the bulk of the phytoplankton biomass. A highly significant relationship was calculated between DOC and POC production rates in upwelling conditions. By contrast, the relationship between these variables in oligotrophic environments was weak, which suggests that different processes could be controlling the release of dissolved organic matter in productive and unproductive waters. Article in Journal/Newspaper North Atlantic Wiley Online Library Limnology and Oceanography 46 6 1370 1377 |
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Wiley Online Library |
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English |
description |
Dissolved organic carbon (DOC) production by microbial populations was measured at 19 stations in the Atlantic Ocean to quantify the fraction of photoassimilated carbon that flows through the dissolved organic pool at basin scale and to assess the relationship between the percentage of DOC production, phytoplankton size structure, and rates of net community production. Experiments were conducted during four cruises carried out between May 1998 and October 1999, covering three upwelling regions: Benguela (SW Africa), Mauritania (NW Africa) and NW Spain, and the oligotrophic North Atlantic subtropical gyre between 30°N and 36°N. Photic zone integrated particulate organic carbon (POC) production rates ranged from 10 to 1,178 mg C m −2 h −1 , thus covering a wide productivity spectrum. The percentage of DOC production with respect to total integrated primary production ranged from 4 to 42%, being larger in oligotrophic, picoplanktonߚdominated waters, where a balanced metabolism of the microbial community was observed, than in productive, net autotrophic waters, where largeߚsized cells formed the bulk of the phytoplankton biomass. A highly significant relationship was calculated between DOC and POC production rates in upwelling conditions. By contrast, the relationship between these variables in oligotrophic environments was weak, which suggests that different processes could be controlling the release of dissolved organic matter in productive and unproductive waters. |
format |
Article in Journal/Newspaper |
author |
Teira, Eva José Pazó, María Serret, Pablo Fernández, Emilio |
spellingShingle |
Teira, Eva José Pazó, María Serret, Pablo Fernández, Emilio Dissolved organic carbon production by microbial populations in the Atlantic Ocean |
author_facet |
Teira, Eva José Pazó, María Serret, Pablo Fernández, Emilio |
author_sort |
Teira, Eva |
title |
Dissolved organic carbon production by microbial populations in the Atlantic Ocean |
title_short |
Dissolved organic carbon production by microbial populations in the Atlantic Ocean |
title_full |
Dissolved organic carbon production by microbial populations in the Atlantic Ocean |
title_fullStr |
Dissolved organic carbon production by microbial populations in the Atlantic Ocean |
title_full_unstemmed |
Dissolved organic carbon production by microbial populations in the Atlantic Ocean |
title_sort |
dissolved organic carbon production by microbial populations in the atlantic ocean |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.4319/lo.2001.46.6.1370 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2001.46.6.1370 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2001.46.6.1370 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Limnology and Oceanography volume 46, issue 6, page 1370-1377 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2001.46.6.1370 |
container_title |
Limnology and Oceanography |
container_volume |
46 |
container_issue |
6 |
container_start_page |
1370 |
op_container_end_page |
1377 |
_version_ |
1810463837554475008 |