Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data
Phytoplankton population dynamics play an important role in biogeochemical cycles in the Southern Ocean during austral summer. Recent environmental changes such as a rise in sea surface temperature (SST) are likely to impact on net primary productivity (NPP) and phytoplankton community composition....
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Online Access: | https://doi.org/10.5194/bg-9-3875-2012 http://ecite.utas.edu.au/80653 |
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ftunivtasecite:oai:ecite.utas.edu.au:80653 2023-05-15T18:24:04+02:00 Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data Takao, S Hirawake, T Wright, SW Suzuki, K 2012 application/pdf https://doi.org/10.5194/bg-9-3875-2012 http://ecite.utas.edu.au/80653 en eng Copernicus GmbH http://ecite.utas.edu.au/80653/1/Takao_et_al(2012)_BG.pdf http://dx.doi.org/10.5194/bg-9-3875-2012 Takao, S and Hirawake, T and Wright, SW and Suzuki, K, Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data, Biogeosciences, 9, (10) pp. 3875-3890. ISSN 1726-4170 (2012) [Refereed Article] http://ecite.utas.edu.au/80653 Biological Sciences Other Biological Sciences Global Change Biology Refereed Article PeerReviewed 2012 ftunivtasecite https://doi.org/10.5194/bg-9-3875-2012 2019-12-13T21:45:53Z Phytoplankton population dynamics play an important role in biogeochemical cycles in the Southern Ocean during austral summer. Recent environmental changes such as a rise in sea surface temperature (SST) are likely to impact on net primary productivity (NPP) and phytoplankton community composition. However, their spatiotemporal relationships are still unclear in the Southern Ocean. Here we assessed the relationships between NPP, dominant phytoplankton groups, and SST in the Indian sector of the Southern Ocean over the past decade (19972007) using satellite remote sensing data. As a result, we found a statistically significant reduction in NPP in the polar frontal zone over the past decade during austral summer. Moreover, the decrease in NPP positively correlated with the dominance of diatoms (Kendall's rank correlation τ = 0.60) estimated by a phytoplankton community composition model, but not correlated with SST. In the seasonal ice zone, NPP correlated with not only the dominance of diatoms positively (τ = 0.56), but also the dominance of haptophytes (τ = −0.54) and SST (τ = −0.54) negatively. Our results suggested that summer NPP values were strongly affected by the phytoplankton community composition in the Indian sector of the Southern Ocean. Article in Journal/Newspaper Southern Ocean eCite UTAS (University of Tasmania) Southern Ocean Austral Indian Biogeosciences 9 10 3875 3890 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Biological Sciences Other Biological Sciences Global Change Biology |
spellingShingle |
Biological Sciences Other Biological Sciences Global Change Biology Takao, S Hirawake, T Wright, SW Suzuki, K Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data |
topic_facet |
Biological Sciences Other Biological Sciences Global Change Biology |
description |
Phytoplankton population dynamics play an important role in biogeochemical cycles in the Southern Ocean during austral summer. Recent environmental changes such as a rise in sea surface temperature (SST) are likely to impact on net primary productivity (NPP) and phytoplankton community composition. However, their spatiotemporal relationships are still unclear in the Southern Ocean. Here we assessed the relationships between NPP, dominant phytoplankton groups, and SST in the Indian sector of the Southern Ocean over the past decade (19972007) using satellite remote sensing data. As a result, we found a statistically significant reduction in NPP in the polar frontal zone over the past decade during austral summer. Moreover, the decrease in NPP positively correlated with the dominance of diatoms (Kendall's rank correlation τ = 0.60) estimated by a phytoplankton community composition model, but not correlated with SST. In the seasonal ice zone, NPP correlated with not only the dominance of diatoms positively (τ = 0.56), but also the dominance of haptophytes (τ = −0.54) and SST (τ = −0.54) negatively. Our results suggested that summer NPP values were strongly affected by the phytoplankton community composition in the Indian sector of the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Takao, S Hirawake, T Wright, SW Suzuki, K |
author_facet |
Takao, S Hirawake, T Wright, SW Suzuki, K |
author_sort |
Takao, S |
title |
Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data |
title_short |
Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data |
title_full |
Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data |
title_fullStr |
Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data |
title_full_unstemmed |
Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data |
title_sort |
variations of net primary productivity and phytoplankton community composition in the indian sector of the southern ocean as estimated from ocean color remote sensing data |
publisher |
Copernicus GmbH |
publishDate |
2012 |
url |
https://doi.org/10.5194/bg-9-3875-2012 http://ecite.utas.edu.au/80653 |
geographic |
Southern Ocean Austral Indian |
geographic_facet |
Southern Ocean Austral Indian |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://ecite.utas.edu.au/80653/1/Takao_et_al(2012)_BG.pdf http://dx.doi.org/10.5194/bg-9-3875-2012 Takao, S and Hirawake, T and Wright, SW and Suzuki, K, Variations of net primary productivity and phytoplankton community composition in the Indian sector of the Southern Ocean as estimated from ocean color remote sensing data, Biogeosciences, 9, (10) pp. 3875-3890. ISSN 1726-4170 (2012) [Refereed Article] http://ecite.utas.edu.au/80653 |
op_doi |
https://doi.org/10.5194/bg-9-3875-2012 |
container_title |
Biogeosciences |
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9 |
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10 |
container_start_page |
3875 |
op_container_end_page |
3890 |
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1766204361341403136 |