Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean

Abstract Antarctic marine biological variability modulates climate systems via the biological pump. However, the knowledge of biological response in the Southern Ocean to climate variability still has been lack of understanding owing to limited ocean color data in the high latitude region. We invest...

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Autores principales:	Kyung Min Noh, Hyung-Gyu Lim, Jong-Seong Kug
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/348a585af86445ebb0550b7d3b8414f8
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spelling	oai:doaj.org-article:348a585af86445ebb0550b7d3b8414f82021-12-02T15:43:17ZZonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean10.1038/s41598-021-89720-42045-2322https://doaj.org/article/348a585af86445ebb0550b7d3b8414f82021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89720-4https://doaj.org/toc/2045-2322Abstract Antarctic marine biological variability modulates climate systems via the biological pump. However, the knowledge of biological response in the Southern Ocean to climate variability still has been lack of understanding owing to limited ocean color data in the high latitude region. We investigated the surface chlorophyll concentration responses to the Southern annular mode (SAM) in the marginal sea of the Southern ocean using satellite observation and reanalysis data focusing on the austral summer. The positive phase of SAM is associated with enhanced and poleward-shifted westerly winds, leading to physical and biogeochemical responses over the Southern ocean. Our result indicates that chlorophyll has strong zonally asymmetric responses to SAM owing to different limiting factors of phytoplankton growth per region. For the positive SAM phase, chlorophyll tends to increase in the western Amundsen–Ross Sea but decreases in the D’Urville Sea. It is suggested that the distinct limiting factors are associated with the seasonal variability of sea ice and upwelling per region.Kyung Min NohHyung-Gyu LimJong-Seong KugNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kyung Min Noh Hyung-Gyu Lim Jong-Seong Kug Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean
description	Abstract Antarctic marine biological variability modulates climate systems via the biological pump. However, the knowledge of biological response in the Southern Ocean to climate variability still has been lack of understanding owing to limited ocean color data in the high latitude region. We investigated the surface chlorophyll concentration responses to the Southern annular mode (SAM) in the marginal sea of the Southern ocean using satellite observation and reanalysis data focusing on the austral summer. The positive phase of SAM is associated with enhanced and poleward-shifted westerly winds, leading to physical and biogeochemical responses over the Southern ocean. Our result indicates that chlorophyll has strong zonally asymmetric responses to SAM owing to different limiting factors of phytoplankton growth per region. For the positive SAM phase, chlorophyll tends to increase in the western Amundsen–Ross Sea but decreases in the D’Urville Sea. It is suggested that the distinct limiting factors are associated with the seasonal variability of sea ice and upwelling per region.
format	article
author	Kyung Min Noh Hyung-Gyu Lim Jong-Seong Kug
author_facet	Kyung Min Noh Hyung-Gyu Lim Jong-Seong Kug
author_sort	Kyung Min Noh
title	Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean
title_short	Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean
title_full	Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean
title_fullStr	Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean
title_full_unstemmed	Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean
title_sort	zonally asymmetric phytoplankton response to the southern annular mode in the marginal sea of the southern ocean
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/348a585af86445ebb0550b7d3b8414f8
work_keys_str_mv	AT kyungminnoh zonallyasymmetricphytoplanktonresponsetothesouthernannularmodeinthemarginalseaofthesouthernocean AT hyunggyulim zonallyasymmetricphytoplanktonresponsetothesouthernannularmodeinthemarginalseaofthesouthernocean AT jongseongkug zonallyasymmetricphytoplanktonresponsetothesouthernannularmodeinthemarginalseaofthesouthernocean
_version_	1718385801810673664

Zonally asymmetric phytoplankton response to the Southern annular mode in the marginal sea of the Southern ocean

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