Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica

DAI Fangfang; WANG Zipan; YAN Xiaojun; LI Zhijun; ALLHUSEN Erika; DIECKMANN Gerhard

doi:10.1007/s13131-010-0041-z

Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica

doi: 10.1007/s13131-010-0041-z

1.
Ningbo University, Ningbo 315211, China;Zhejiang Wanli University, Ningbo 315100, China
2.
Zhejiang Wanli University, Ningbo 315100, China
3.
Ningbo University, Ningbo 315211, China
4.
Dalian University of Technology, Dalian 116024, China
5.
Alfred Wegener Institute for Marine and Polar Research, Bremerhaven 27570, Germany

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- 收稿日期: 2009-10-26
- 修回日期: 2009-12-12

Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica

1.
Ningbo University, Ningbo 315211, China;Zhejiang Wanli University, Ningbo 315100, China
2.
Zhejiang Wanli University, Ningbo 315100, China
3.
Ningbo University, Ningbo 315211, China
4.
Dalian University of Technology, Dalian 116024, China
5.
Alfred Wegener Institute for Marine and Polar Research, Bremerhaven 27570, Germany

摘要

摘要: The investigation on sea-ice biology in combination with physics, chemistry and ecology was carried out in the northwestern Weddell Sea, Antarctica, during the cruise ANT/XX Ⅲ-7 on board POLARSTERN in the austral winter (August-October) in 2006. The distribution of chlorophyll a was measured and related to sea ice texture. The mean concentrations of chlorophyll a in the sea ice varied considerably with ice texture. The concentration of chlorophyll a per core ranged from 2.10-84.40 μg/dm³ with a mean of 16.56 μg/dm³. And the value of R (chlorophyll a/gross chlorophyll) ranged from 0.79-0.83. These high winter chlorophyll values indicate that primary production is considerable and confirms that there is significant primary production in Antarctic sea ice during winter. Thus this constitutes a major proportion of southern ocean primary production and carbon flux before the sea ice retreats.
- physicalstructure /
- chlorophylla /
- Antarctica /
- wintersea-ice
Abstract: The investigation on sea-ice biology in combination with physics, chemistry and ecology was carried out in the northwestern Weddell Sea, Antarctica, during the cruise ANT/XX Ⅲ-7 on board POLARSTERN in the austral winter (August-October) in 2006. The distribution of chlorophyll a was measured and related to sea ice texture. The mean concentrations of chlorophyll a in the sea ice varied considerably with ice texture. The concentration of chlorophyll a per core ranged from 2.10-84.40 μg/dm³ with a mean of 16.56 μg/dm³. And the value of R (chlorophyll a/gross chlorophyll) ranged from 0.79-0.83. These high winter chlorophyll values indicate that primary production is considerable and confirms that there is significant primary production in Antarctic sea ice during winter. Thus this constitutes a major proportion of southern ocean primary production and carbon flux before the sea ice retreats.
- physical structure /
- chlorophyll a /
- Antarctica /
- winter sea-ice

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文章访问数: 317
HTML全文浏览量: 40
PDF下载量: 138
被引次数: 0

Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica

doi: 10.1007/s13131-010-0041-z

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出版历程

Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica

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出版历程

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