Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections
Primary production in the Southern Ocean highly depends on phytoplankton and has been reported to be limited by the availability of the micronutrient iron. The aim of this review is to summarize the past and current knowledge on iron limitation in the Southern Ocean, and specifically how it affects...
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Online Access: | https://doi.org/10.3390/jmse11020272 |
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ftmdpi:oai:mdpi.com:/2077-1312/11/2/272/ 2023-08-20T04:01:05+02:00 Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections Emma Bazzani Chiara Lauritano Maria Saggiomo agris 2023-01-25 application/pdf https://doi.org/10.3390/jmse11020272 EN eng Multidisciplinary Digital Publishing Institute Marine Environmental Science https://dx.doi.org/10.3390/jmse11020272 https://creativecommons.org/licenses/by/4.0/ Journal of Marine Science and Engineering; Volume 11; Issue 2; Pages: 272 iron Southern Ocean phytoplankton climate change Antarctica high-nutrient/low-chlorophyll region Text 2023 ftmdpi https://doi.org/10.3390/jmse11020272 2023-08-01T08:28:17Z Primary production in the Southern Ocean highly depends on phytoplankton and has been reported to be limited by the availability of the micronutrient iron. The aim of this review is to summarize the past and current knowledge on iron limitation in the Southern Ocean, and specifically how it affects primary producers, thus influencing the whole Southern Ocean community structure, carbon cycling, and large-scale ocean biogeochemistry. In this region, extensive variability exists between different areas regarding iron availability, but also between seasons. Moreover, co-limitations with other abiotic environmental factors exist, further complicating the assessment of the role of iron as limiting factor for phytoplankton productivity. Currently, climate change is altering the Southern Ocean environment. How these changes will affect resident phytoplankton is still not clear, possibly modifying the iron supply mechanisms. Existing projections point towards a possible partial relief of iron stress on phytoplankton, but the interactions between different environmental changes, and the cascade effects they will have, are still poorly understood, and some aspects understudied. Here we try to synthetize the available predictions and uncertainties concerning this topic. Text Antarc* Antarctica Southern Ocean MDPI Open Access Publishing Southern Ocean Journal of Marine Science and Engineering 11 2 272 |
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Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
iron Southern Ocean phytoplankton climate change Antarctica high-nutrient/low-chlorophyll region |
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iron Southern Ocean phytoplankton climate change Antarctica high-nutrient/low-chlorophyll region Emma Bazzani Chiara Lauritano Maria Saggiomo Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections |
topic_facet |
iron Southern Ocean phytoplankton climate change Antarctica high-nutrient/low-chlorophyll region |
description |
Primary production in the Southern Ocean highly depends on phytoplankton and has been reported to be limited by the availability of the micronutrient iron. The aim of this review is to summarize the past and current knowledge on iron limitation in the Southern Ocean, and specifically how it affects primary producers, thus influencing the whole Southern Ocean community structure, carbon cycling, and large-scale ocean biogeochemistry. In this region, extensive variability exists between different areas regarding iron availability, but also between seasons. Moreover, co-limitations with other abiotic environmental factors exist, further complicating the assessment of the role of iron as limiting factor for phytoplankton productivity. Currently, climate change is altering the Southern Ocean environment. How these changes will affect resident phytoplankton is still not clear, possibly modifying the iron supply mechanisms. Existing projections point towards a possible partial relief of iron stress on phytoplankton, but the interactions between different environmental changes, and the cascade effects they will have, are still poorly understood, and some aspects understudied. Here we try to synthetize the available predictions and uncertainties concerning this topic. |
format |
Text |
author |
Emma Bazzani Chiara Lauritano Maria Saggiomo |
author_facet |
Emma Bazzani Chiara Lauritano Maria Saggiomo |
author_sort |
Emma Bazzani |
title |
Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections |
title_short |
Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections |
title_full |
Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections |
title_fullStr |
Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections |
title_full_unstemmed |
Southern Ocean Iron Limitation of Primary Production between Past Knowledge and Future Projections |
title_sort |
southern ocean iron limitation of primary production between past knowledge and future projections |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/jmse11020272 |
op_coverage |
agris |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Antarc* Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica Southern Ocean |
op_source |
Journal of Marine Science and Engineering; Volume 11; Issue 2; Pages: 272 |
op_relation |
Marine Environmental Science https://dx.doi.org/10.3390/jmse11020272 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jmse11020272 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
11 |
container_issue |
2 |
container_start_page |
272 |
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1774722505814048768 |