Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone
20 pages, 7 figures, 1 table, 1 plate, supplemental material https://doi.org/10.5194/bg-15-1843-2018-supplement, data availability https://data.aad.gov.au/metadata/records/ Coccol-ithophore_Fluxes_SAZ, https://doi.org/10.4225/15/5ab86f35e277e The Southern Ocean is experiencing rapid and relentless c...
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Online Access: | http://hdl.handle.net/10261/164540 https://doi.org/10.5194/bg-15-1843-2018 https://doi.org/10.13039/501100001230 https://doi.org/10.13039/501100000780 |
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ftcsic:oai:digital.csic.es:10261/164540 2024-02-11T09:55:57+01:00 Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone Rigual-Hernández, Andrés S. Flores, José Abel Sierro, Francisco Javier Fuertes, Miguel A. Cros, Lluïsa Trull, Thomas W. Australian Government Macquarie University European Commission 2018-03 http://hdl.handle.net/10261/164540 https://doi.org/10.5194/bg-15-1843-2018 https://doi.org/10.13039/501100001230 https://doi.org/10.13039/501100000780 unknown European Geosciences Union Publisher's version https://doi.org/10.5194/bg-15-1843-2018 Sí doi:10.5194/bg-15-1843-2018 issn: 1726-4170 e-issn: 1726-4189 Biogeosciences 15: 1843-1862 (2018) http://hdl.handle.net/10261/164540 http://dx.doi.org/10.13039/501100001230 http://dx.doi.org/10.13039/501100000780 open artículo http://purl.org/coar/resource_type/c_6501 2018 ftcsic https://doi.org/10.5194/bg-15-1843-201810.13039/50110000123010.13039/501100000780 2024-01-16T10:30:19Z 20 pages, 7 figures, 1 table, 1 plate, supplemental material https://doi.org/10.5194/bg-15-1843-2018-supplement, data availability https://data.aad.gov.au/metadata/records/ Coccol-ithophore_Fluxes_SAZ, https://doi.org/10.4225/15/5ab86f35e277e The Southern Ocean is experiencing rapid and relentless change in its physical and biogeochemical properties. The rate of warming of the Antarctic Circumpolar Current exceeds that of the global ocean, and the enhanced uptake of carbon dioxide is causing basin-wide ocean acidification. Observational data suggest that these changes are influencing the distribution and composition of pelagic plankton communities. Long-term and annual field observations on key environmental variables and organisms are a critical basis for predicting changes in Southern Ocean ecosystems. These observations are particularly needed, since high-latitude systems have been projected to experience the most severe impacts of ocean acidification and invasions of allochthonous species. Coccolithophores are the most prolific calcium-carbonate-producing phytoplankton group playing an important role in Southern Ocean biogeochemical cycles. Satellite imagery has revealed elevated particulate inorganic carbon concentrations near the major circumpolar fronts of the Southern Ocean that can be attributed to the coccolithophore Emiliania huxleyi. Recent studies have suggested changes during the last decades in the distribution and abundance of Southern Ocean coccolithophores. However, due to limited field observations, the distribution, diversity and state of coccolithophore populations in the Southern Ocean remain poorly characterised. We report here on seasonal variations in the abundance and composition of coccolithophore assemblages collected by two moored sediment traps deployed at the Antarctic zone south of Australia (2000 and 3700 m of depth) for 1 year in 2001–2002. Additionally, seasonal changes in coccolith weights of E. huxleyi populations were estimated using circularly polarised micrographs ... Article in Journal/Newspaper Antarc* Antarctic Ocean acidification Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Southern Ocean The Antarctic Biogeosciences 15 6 1843 1862 |
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Digital.CSIC (Spanish National Research Council) |
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description |
20 pages, 7 figures, 1 table, 1 plate, supplemental material https://doi.org/10.5194/bg-15-1843-2018-supplement, data availability https://data.aad.gov.au/metadata/records/ Coccol-ithophore_Fluxes_SAZ, https://doi.org/10.4225/15/5ab86f35e277e The Southern Ocean is experiencing rapid and relentless change in its physical and biogeochemical properties. The rate of warming of the Antarctic Circumpolar Current exceeds that of the global ocean, and the enhanced uptake of carbon dioxide is causing basin-wide ocean acidification. Observational data suggest that these changes are influencing the distribution and composition of pelagic plankton communities. Long-term and annual field observations on key environmental variables and organisms are a critical basis for predicting changes in Southern Ocean ecosystems. These observations are particularly needed, since high-latitude systems have been projected to experience the most severe impacts of ocean acidification and invasions of allochthonous species. Coccolithophores are the most prolific calcium-carbonate-producing phytoplankton group playing an important role in Southern Ocean biogeochemical cycles. Satellite imagery has revealed elevated particulate inorganic carbon concentrations near the major circumpolar fronts of the Southern Ocean that can be attributed to the coccolithophore Emiliania huxleyi. Recent studies have suggested changes during the last decades in the distribution and abundance of Southern Ocean coccolithophores. However, due to limited field observations, the distribution, diversity and state of coccolithophore populations in the Southern Ocean remain poorly characterised. We report here on seasonal variations in the abundance and composition of coccolithophore assemblages collected by two moored sediment traps deployed at the Antarctic zone south of Australia (2000 and 3700 m of depth) for 1 year in 2001–2002. Additionally, seasonal changes in coccolith weights of E. huxleyi populations were estimated using circularly polarised micrographs ... |
author2 |
Australian Government Macquarie University European Commission |
format |
Article in Journal/Newspaper |
author |
Rigual-Hernández, Andrés S. Flores, José Abel Sierro, Francisco Javier Fuertes, Miguel A. Cros, Lluïsa Trull, Thomas W. |
spellingShingle |
Rigual-Hernández, Andrés S. Flores, José Abel Sierro, Francisco Javier Fuertes, Miguel A. Cros, Lluïsa Trull, Thomas W. Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone |
author_facet |
Rigual-Hernández, Andrés S. Flores, José Abel Sierro, Francisco Javier Fuertes, Miguel A. Cros, Lluïsa Trull, Thomas W. |
author_sort |
Rigual-Hernández, Andrés S. |
title |
Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone |
title_short |
Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone |
title_full |
Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone |
title_fullStr |
Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone |
title_full_unstemmed |
Coccolithophore populations and their contribution to carbonate export during an annual cycle in the Australian sector of the Antarctic zone |
title_sort |
coccolithophore populations and their contribution to carbonate export during an annual cycle in the australian sector of the antarctic zone |
publisher |
European Geosciences Union |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/164540 https://doi.org/10.5194/bg-15-1843-2018 https://doi.org/10.13039/501100001230 https://doi.org/10.13039/501100000780 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Ocean acidification Southern Ocean |
genre_facet |
Antarc* Antarctic Ocean acidification Southern Ocean |
op_relation |
Publisher's version https://doi.org/10.5194/bg-15-1843-2018 Sí doi:10.5194/bg-15-1843-2018 issn: 1726-4170 e-issn: 1726-4189 Biogeosciences 15: 1843-1862 (2018) http://hdl.handle.net/10261/164540 http://dx.doi.org/10.13039/501100001230 http://dx.doi.org/10.13039/501100000780 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/bg-15-1843-201810.13039/50110000123010.13039/501100000780 |
container_title |
Biogeosciences |
container_volume |
15 |
container_issue |
6 |
container_start_page |
1843 |
op_container_end_page |
1862 |
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1790599693602914304 |