| DAI Fangfang,WANG Zipan,YAN Xiaojun,LI Zhijun,ALLHUSEN Erika,DIECKMANN Gerhard. 2010. Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica. Acta Oceanologica Sinica, (3):97－105 |
| Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica |
| Physical structure and vertical distribution of chlorophyll a in winter sea ice from the northwestern Weddell Sea, Antarctica |
| Received:October 26, 2009 Revised:December 12, 2009 |
| DOI：10.1007/s13131-010-0041-z |
| Key words:physical structure chlorophyll a Antarctica winter sea-ice |
| 中文关键词: physical structure chlorophyll a Antarctica winter sea-ice |
| 基金项目: |
| Author Name | Affiliation | E-mail | | DAI Fangfang | Ningbo University, Ningbo 315211, China
Zhejiang Wanli University, Ningbo 315100, China | | | WANG Zipan | Zhejiang Wanli University, Ningbo 315100, China | wangzipan2000@yahoo.com.cn | | YAN Xiaojun | Ningbo University, Ningbo 315211, China | | | LI Zhijun | Dalian University of Technology, Dalian 116024, China | | | ALLHUSEN Erika | Alfred Wegener Institute for Marine and Polar Research, Bremerhaven 27570, Germany | | | DIECKMANN Gerhard | Alfred Wegener Institute for Marine and Polar Research, Bremerhaven 27570, Germany | |
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| 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. |
| 中文摘要: |
| 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. |
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