Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean
Because of recent findings that Fe is a limiting factor for phytoplankton activity even at relatively high dissolved iron (DFe) concentrations, the potential importance of Fe limitation was revisited in the northeast Atlantic Ocean (39−45°N, 17−21°W). We report data gathered during deck incubation e...
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crwiley:10.4319/lo.2004.49.6.2095 2024-05-19T07:45:47+00:00 Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean Blain, Stèphane Guieu, Cècile Claustre, Hervè Leblanc, Karine Moutin, Thierry Quèguiner, Bernard Ras, Josèphine Sarthou, Gèraldine 2004 http://dx.doi.org/10.4319/lo.2004.49.6.2095 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2004.49.6.2095 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2004.49.6.2095 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 49, issue 6, page 2095-2104 ISSN 0024-3590 1939-5590 Aquatic Science Oceanography journal-article 2004 crwiley https://doi.org/10.4319/lo.2004.49.6.2095 2024-04-22T07:35:45Z Because of recent findings that Fe is a limiting factor for phytoplankton activity even at relatively high dissolved iron (DFe) concentrations, the potential importance of Fe limitation was revisited in the northeast Atlantic Ocean (39−45°N, 17−21°W). We report data gathered during deck incubation experiments performed at three stations in February‐March 2001 with surface seawater containing DFe concentrations of ~0.40 nmol L −1 . At all stations, Fe addition enhanced phytoplankton growth. Fe limitation was moderate and occurred simultaneously with limitation by major nutrients. This was clearly demonstrated for diatoms that were colimited by orthosilicic acid. Micro‐, nano‐, and picoplankton benefited from Fe enrichment. Experiments performed with the trihydroxamate siderophore desferrioxamine mesylate B (DFOB) indicated that Fe reserves exist within the cells, especially within the larger cells. This reserve could result from luxurious storage of Fe by colimited cells during episodic atmospheric deposition of Saharan dust. Simulating concentrations of dust resulting from aerosol deposition in well‐stratified surface waters, we determined that the solubility of Saharan dust was very low (<0.1% w/w) but the amount of DFe released in seawater was sufficient to relieve the Fe limitation of the ambient phytoplankton community. Article in Journal/Newspaper Northeast Atlantic Wiley Online Library Limnology and Oceanography 49 6 2095 2104 |
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collection |
Wiley Online Library |
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crwiley |
language |
English |
topic |
Aquatic Science Oceanography |
spellingShingle |
Aquatic Science Oceanography Blain, Stèphane Guieu, Cècile Claustre, Hervè Leblanc, Karine Moutin, Thierry Quèguiner, Bernard Ras, Josèphine Sarthou, Gèraldine Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean |
topic_facet |
Aquatic Science Oceanography |
description |
Because of recent findings that Fe is a limiting factor for phytoplankton activity even at relatively high dissolved iron (DFe) concentrations, the potential importance of Fe limitation was revisited in the northeast Atlantic Ocean (39−45°N, 17−21°W). We report data gathered during deck incubation experiments performed at three stations in February‐March 2001 with surface seawater containing DFe concentrations of ~0.40 nmol L −1 . At all stations, Fe addition enhanced phytoplankton growth. Fe limitation was moderate and occurred simultaneously with limitation by major nutrients. This was clearly demonstrated for diatoms that were colimited by orthosilicic acid. Micro‐, nano‐, and picoplankton benefited from Fe enrichment. Experiments performed with the trihydroxamate siderophore desferrioxamine mesylate B (DFOB) indicated that Fe reserves exist within the cells, especially within the larger cells. This reserve could result from luxurious storage of Fe by colimited cells during episodic atmospheric deposition of Saharan dust. Simulating concentrations of dust resulting from aerosol deposition in well‐stratified surface waters, we determined that the solubility of Saharan dust was very low (<0.1% w/w) but the amount of DFe released in seawater was sufficient to relieve the Fe limitation of the ambient phytoplankton community. |
format |
Article in Journal/Newspaper |
author |
Blain, Stèphane Guieu, Cècile Claustre, Hervè Leblanc, Karine Moutin, Thierry Quèguiner, Bernard Ras, Josèphine Sarthou, Gèraldine |
author_facet |
Blain, Stèphane Guieu, Cècile Claustre, Hervè Leblanc, Karine Moutin, Thierry Quèguiner, Bernard Ras, Josèphine Sarthou, Gèraldine |
author_sort |
Blain, Stèphane |
title |
Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean |
title_short |
Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean |
title_full |
Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean |
title_fullStr |
Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean |
title_full_unstemmed |
Availability of iron and major nutrients for phytoplankton in the northeast Atlantic Ocean |
title_sort |
availability of iron and major nutrients for phytoplankton in the northeast atlantic ocean |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.4319/lo.2004.49.6.2095 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2004.49.6.2095 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2004.49.6.2095 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Limnology and Oceanography volume 49, issue 6, page 2095-2104 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2004.49.6.2095 |
container_title |
Limnology and Oceanography |
container_volume |
49 |
container_issue |
6 |
container_start_page |
2095 |
op_container_end_page |
2104 |
_version_ |
1799485886717493248 |