A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization
Changes in iron supply to oceanic plankton are thought to have a significant effect on concentrations of atmospheric carbon dioxide by altering rates of carbon sequestration, a theory known as the 'iron hypothesis'. For this reason, it is important to understand the response of pelagic bio...
Published in: | Nature |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Publishing Group
2000
|
Subjects: | |
Online Access: | https://doi.org/10.1038/35037500 http://www.ncbi.nlm.nih.gov/pubmed/11048709 http://ecite.utas.edu.au/76851 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:76851 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:76851 2023-05-15T18:24:45+02:00 A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization Boyd, PW Watson, AJ Law, CS Abraham, ER Trull, T Murdoch, R Bakker, DCE Bowie, AR Buesseler, KO Chang, H Charette, M Croot, P Downing, K Frew, R Gall, M Hadfield, M Hall, J Harvey, M Jameson, G LaRoche, J Liddicoat, M Ling, R Maldonada, MT McKay, RM Nodder, S Pickmere, S Pridmore, R Rintoul, SR Safi, K Sutton, P Strzepek, R Tanneberger, K Turner, S Waite, A Zeldis, J 2000 application/pdf https://doi.org/10.1038/35037500 http://www.ncbi.nlm.nih.gov/pubmed/11048709 http://ecite.utas.edu.au/76851 en eng Nature Publishing Group http://ecite.utas.edu.au/76851/1/overview published.pdf http://dx.doi.org/10.1038/35037500 Boyd, PW and Watson, AJ and Law, CS and Abraham, ER and Trull, T and Murdoch, R and Bakker, DCE and Bowie, AR and Buesseler, KO and Chang, H and Charette, M and Croot, P and Downing, K and Frew, R and Gall, M and Hadfield, M and Hall, J and Harvey, M and Jameson, G and LaRoche, J and Liddicoat, M and Ling, R and Maldonada, MT and McKay, RM and Nodder, S and Pickmere, S and Pridmore, R and Rintoul, SR and Safi, K and Sutton, P and Strzepek, R and Tanneberger, K and Turner, S and Waite, A and Zeldis, J, A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization, Nature, 407 pp. 695-702. ISSN 0028-0836 (2000) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/11048709 http://ecite.utas.edu.au/76851 Earth Sciences Oceanography Chemical oceanography Refereed Article PeerReviewed 2000 ftunivtasecite https://doi.org/10.1038/35037500 2021-11-15T23:17:41Z Changes in iron supply to oceanic plankton are thought to have a significant effect on concentrations of atmospheric carbon dioxide by altering rates of carbon sequestration, a theory known as the 'iron hypothesis'. For this reason, it is important to understand the response of pelagic biota to increased iron supply. Here we report the results of a mesoscale iron fertilization experiment in the polar Southern Ocean, where the potential to sequester iron-elevated algal carbon is probably greatest. Increased iron supply led to elevated phytoplankton biomass and rates of photosynthesis in surface waters, causing a large drawdown of carbon dioxide and macronutrients, and elevated dimethyl sulphide levels after 13 days. This drawdown was mostly due to the proliferation of diatom stocks. But downward export of biogenic carbon was not increased. Moreover, satellite observations of this massive bloom 30 days later, suggest that a sufficient proportion of the added iron was retained in surface waters. Our findings demonstrate that iron supply controls phytoplankton growth and community composition during summer in these polar Southern Ocean waters, but the fate of algal carbon remains unknown and depends on the interplay between the processes controlling export, remineralisation and timescales of water mass subduction. Article in Journal/Newspaper Southern Ocean eCite UTAS (University of Tasmania) Southern Ocean Nature 407 6805 695 702 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Chemical oceanography |
spellingShingle |
Earth Sciences Oceanography Chemical oceanography Boyd, PW Watson, AJ Law, CS Abraham, ER Trull, T Murdoch, R Bakker, DCE Bowie, AR Buesseler, KO Chang, H Charette, M Croot, P Downing, K Frew, R Gall, M Hadfield, M Hall, J Harvey, M Jameson, G LaRoche, J Liddicoat, M Ling, R Maldonada, MT McKay, RM Nodder, S Pickmere, S Pridmore, R Rintoul, SR Safi, K Sutton, P Strzepek, R Tanneberger, K Turner, S Waite, A Zeldis, J A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization |
topic_facet |
Earth Sciences Oceanography Chemical oceanography |
description |
Changes in iron supply to oceanic plankton are thought to have a significant effect on concentrations of atmospheric carbon dioxide by altering rates of carbon sequestration, a theory known as the 'iron hypothesis'. For this reason, it is important to understand the response of pelagic biota to increased iron supply. Here we report the results of a mesoscale iron fertilization experiment in the polar Southern Ocean, where the potential to sequester iron-elevated algal carbon is probably greatest. Increased iron supply led to elevated phytoplankton biomass and rates of photosynthesis in surface waters, causing a large drawdown of carbon dioxide and macronutrients, and elevated dimethyl sulphide levels after 13 days. This drawdown was mostly due to the proliferation of diatom stocks. But downward export of biogenic carbon was not increased. Moreover, satellite observations of this massive bloom 30 days later, suggest that a sufficient proportion of the added iron was retained in surface waters. Our findings demonstrate that iron supply controls phytoplankton growth and community composition during summer in these polar Southern Ocean waters, but the fate of algal carbon remains unknown and depends on the interplay between the processes controlling export, remineralisation and timescales of water mass subduction. |
format |
Article in Journal/Newspaper |
author |
Boyd, PW Watson, AJ Law, CS Abraham, ER Trull, T Murdoch, R Bakker, DCE Bowie, AR Buesseler, KO Chang, H Charette, M Croot, P Downing, K Frew, R Gall, M Hadfield, M Hall, J Harvey, M Jameson, G LaRoche, J Liddicoat, M Ling, R Maldonada, MT McKay, RM Nodder, S Pickmere, S Pridmore, R Rintoul, SR Safi, K Sutton, P Strzepek, R Tanneberger, K Turner, S Waite, A Zeldis, J |
author_facet |
Boyd, PW Watson, AJ Law, CS Abraham, ER Trull, T Murdoch, R Bakker, DCE Bowie, AR Buesseler, KO Chang, H Charette, M Croot, P Downing, K Frew, R Gall, M Hadfield, M Hall, J Harvey, M Jameson, G LaRoche, J Liddicoat, M Ling, R Maldonada, MT McKay, RM Nodder, S Pickmere, S Pridmore, R Rintoul, SR Safi, K Sutton, P Strzepek, R Tanneberger, K Turner, S Waite, A Zeldis, J |
author_sort |
Boyd, PW |
title |
A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization |
title_short |
A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization |
title_full |
A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization |
title_fullStr |
A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization |
title_full_unstemmed |
A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization |
title_sort |
mesoscale phytoplankton bloom in the polar southern ocean stimulated by iron fertilization |
publisher |
Nature Publishing Group |
publishDate |
2000 |
url |
https://doi.org/10.1038/35037500 http://www.ncbi.nlm.nih.gov/pubmed/11048709 http://ecite.utas.edu.au/76851 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://ecite.utas.edu.au/76851/1/overview published.pdf http://dx.doi.org/10.1038/35037500 Boyd, PW and Watson, AJ and Law, CS and Abraham, ER and Trull, T and Murdoch, R and Bakker, DCE and Bowie, AR and Buesseler, KO and Chang, H and Charette, M and Croot, P and Downing, K and Frew, R and Gall, M and Hadfield, M and Hall, J and Harvey, M and Jameson, G and LaRoche, J and Liddicoat, M and Ling, R and Maldonada, MT and McKay, RM and Nodder, S and Pickmere, S and Pridmore, R and Rintoul, SR and Safi, K and Sutton, P and Strzepek, R and Tanneberger, K and Turner, S and Waite, A and Zeldis, J, A mesoscale phytoplankton bloom in the polar Southern Ocean stimulated by iron fertilization, Nature, 407 pp. 695-702. ISSN 0028-0836 (2000) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/11048709 http://ecite.utas.edu.au/76851 |
op_doi |
https://doi.org/10.1038/35037500 |
container_title |
Nature |
container_volume |
407 |
container_issue |
6805 |
container_start_page |
695 |
op_container_end_page |
702 |
_version_ |
1766205616209002496 |