Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton
We conducted a factorial shipboard continuous culture experiment to examine the interactive effects of altered iron, irradiance and CO2 on the summer phytoplankton community of the Ross Sea, Antarctica. After 18 days of continuous incubation, iron enrichment increased phytoplankton biomass, nutrient...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/32839 2023-05-15T13:40:37+02:00 Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton Feng, Y. Hare, C. E. Rose, J. M. Handy, S. M. DiTullio, G. R. Lee, P. A. Smith, W. O., Jr. Peloquin, J. Tozzi, S. Sun, J. Zhang, Y. Dunbar, R. B. Long, M. C. Sohst, B. Lohan, M. Hutchins, D. A. 2010-03-01 http://ir.qdio.ac.cn/handle/337002/32839 https://doi.org/10.1016/j.dsr.2009.10.013 英语 eng DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS http://ir.qdio.ac.cn/handle/337002/32839 doi:10.1016/j.dsr.2009.10.013 Co2 Irradiance Iron Limitation Phytoplankton Diatoms Phaeocystis Ross Sea Global Change Co-limitation Interactive Effects Southern Ocean Article 期刊论文 2010 ftchinacasciocas https://doi.org/10.1016/j.dsr.2009.10.013 2022-06-27T05:37:08Z We conducted a factorial shipboard continuous culture experiment to examine the interactive effects of altered iron, irradiance and CO2 on the summer phytoplankton community of the Ross Sea, Antarctica. After 18 days of continuous incubation, iron enrichment increased phytoplankton biomass, nutrient drawdown, diatom and Phaeocystis abundance, and some photosynthetic parameters. High irradiance significantly increased the number of Phaeocystis antarctica colonies, as well as P. antarctica abundance relative to diatoms. Iron and light had significant interactive effects on diatom and P. antarctica pigment concentrations. P. antarctica colony abundance, and Si:N, Si:C, and N:P ratios. The major influence of high CO2 was on diatom community structure, by favoring the large centric diatom Chaetoceros lineola over the small pennate species Cylindrotheca closterium. The ratio of centric to pennate diatoms was significantly responsive to changes in all three variables individually, and to all of their possible two- and three-way combinations. These results suggest that shifts in light, iron, and CO2 and their mutual interactions all play a role in controlling present day Ross Sea plankton community structure, and need to be considered when predicting the possible future responses of biology and biogeochemistry in this region. (C) 2009 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Antarc* Antarctica Ross Sea Southern Ocean Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Ross Sea Southern Ocean Deep Sea Research Part I: Oceanographic Research Papers 57 3 368 383 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Co2 Irradiance Iron Limitation Phytoplankton Diatoms Phaeocystis Ross Sea Global Change Co-limitation Interactive Effects Southern Ocean |
spellingShingle |
Co2 Irradiance Iron Limitation Phytoplankton Diatoms Phaeocystis Ross Sea Global Change Co-limitation Interactive Effects Southern Ocean Feng, Y. Hare, C. E. Rose, J. M. Handy, S. M. DiTullio, G. R. Lee, P. A. Smith, W. O., Jr. Peloquin, J. Tozzi, S. Sun, J. Zhang, Y. Dunbar, R. B. Long, M. C. Sohst, B. Lohan, M. Hutchins, D. A. Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton |
topic_facet |
Co2 Irradiance Iron Limitation Phytoplankton Diatoms Phaeocystis Ross Sea Global Change Co-limitation Interactive Effects Southern Ocean |
description |
We conducted a factorial shipboard continuous culture experiment to examine the interactive effects of altered iron, irradiance and CO2 on the summer phytoplankton community of the Ross Sea, Antarctica. After 18 days of continuous incubation, iron enrichment increased phytoplankton biomass, nutrient drawdown, diatom and Phaeocystis abundance, and some photosynthetic parameters. High irradiance significantly increased the number of Phaeocystis antarctica colonies, as well as P. antarctica abundance relative to diatoms. Iron and light had significant interactive effects on diatom and P. antarctica pigment concentrations. P. antarctica colony abundance, and Si:N, Si:C, and N:P ratios. The major influence of high CO2 was on diatom community structure, by favoring the large centric diatom Chaetoceros lineola over the small pennate species Cylindrotheca closterium. The ratio of centric to pennate diatoms was significantly responsive to changes in all three variables individually, and to all of their possible two- and three-way combinations. These results suggest that shifts in light, iron, and CO2 and their mutual interactions all play a role in controlling present day Ross Sea plankton community structure, and need to be considered when predicting the possible future responses of biology and biogeochemistry in this region. (C) 2009 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Feng, Y. Hare, C. E. Rose, J. M. Handy, S. M. DiTullio, G. R. Lee, P. A. Smith, W. O., Jr. Peloquin, J. Tozzi, S. Sun, J. Zhang, Y. Dunbar, R. B. Long, M. C. Sohst, B. Lohan, M. Hutchins, D. A. |
author_facet |
Feng, Y. Hare, C. E. Rose, J. M. Handy, S. M. DiTullio, G. R. Lee, P. A. Smith, W. O., Jr. Peloquin, J. Tozzi, S. Sun, J. Zhang, Y. Dunbar, R. B. Long, M. C. Sohst, B. Lohan, M. Hutchins, D. A. |
author_sort |
Feng, Y. |
title |
Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton |
title_short |
Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton |
title_full |
Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton |
title_fullStr |
Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton |
title_full_unstemmed |
Interactive effects of iron, irradiance and CO2 on Ross Sea phytoplankton |
title_sort |
interactive effects of iron, irradiance and co2 on ross sea phytoplankton |
publishDate |
2010 |
url |
http://ir.qdio.ac.cn/handle/337002/32839 https://doi.org/10.1016/j.dsr.2009.10.013 |
geographic |
Ross Sea Southern Ocean |
geographic_facet |
Ross Sea Southern Ocean |
genre |
Antarc* Antarctica Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctica Ross Sea Southern Ocean |
op_relation |
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS http://ir.qdio.ac.cn/handle/337002/32839 doi:10.1016/j.dsr.2009.10.013 |
op_doi |
https://doi.org/10.1016/j.dsr.2009.10.013 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
57 |
container_issue |
3 |
container_start_page |
368 |
op_container_end_page |
383 |
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1766137532148350976 |