Nutrient distribution and the influencing factors of seawater in Arctic Kongsfjorden,summer 2010

Ji Zhongqiang; Gao Shengquan; Jin Haiyan; He Jianfeng; Bai Youcheng; Wang Bin; Yang Zhi; Chen Jianfang

doi:10.3969/j.issn.0253-4193.2014.10.009

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Ji Zhongqiang, Gao Shengquan, Jin Haiyan, He Jianfeng, Bai Youcheng, Wang Bin, Yang Zhi, Chen Jianfang. Nutrient distribution and the influencing factors of seawater in Arctic Kongsfjorden,summer 2010[J]. Haiyang Xuebao, 2014, 36(10): 80-89. doi: 10.3969/j.issn.0253-4193.2014.10.009

Citation:

Ji Zhongqiang, Gao Shengquan, Jin Haiyan, He Jianfeng, Bai Youcheng, Wang Bin, Yang Zhi, Chen Jianfang. Nutrient distribution and the influencing factors of seawater in Arctic Kongsfjorden,summer 2010[J]. Haiyang Xuebao, 2014, 36(10): 80-89. doi: 10.3969/j.issn.0253-4193.2014.10.009

Citation:

Ji Zhongqiang, Gao Shengquan, Jin Haiyan, He Jianfeng, Bai Youcheng, Wang Bin, Yang Zhi, Chen Jianfang. Nutrient distribution and the influencing factors of seawater in Arctic Kongsfjorden,summer 2010[J]. Haiyang Xuebao, 2014, 36(10): 80-89. doi: 10.3969/j.issn.0253-4193.2014.10.009

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Nutrient distribution and the influencing factors of seawater in Arctic Kongsfjorden,summer 2010

doi: 10.3969/j.issn.0253-4193.2014.10.009

1.
State Oceanic Administration Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
State Oceanic Administration Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012, China
3.
Polar Research Institute of China, Shanghai 200136, China

Received Date: 2014-04-10
Rev Recd Date: 2014-07-15

Abstract

Abstract

Kongsfjorden is located in the northwest of Svalbard,Arctic,and the water is affected by Arctic glacier and the Atlantic Ocean. In order to study the affects of glacier water and Atlantic water on distribution of nutrients and the ecosystem in Kongsfjorden,seawater and runoff water were sampled and analyzed for the nutrients and Chlorophyll a during the Yellow River Station expedition in summer 2010. The results showed that,it was a weak year of the Atlantic water in kongsfjorden 2010,and the transformed local water with low temperature,low salinity and high nutrients was in control. The Kongsfjorden water in July 2010 could be divided into 4 water masses,including surface water (SW),transformed intermediate water (TIW),transformed local water (TLW) and transformed Atlantic water (TAW),of which,the nutrient concentration were low in SW and TIW,while,as the depth went deeper,nutrient concentrations were higher in TLW and TAW. The water column below 200 m was mainly controlled by TAW,and its nutrient concentration was lower than those in the bottom of TLW. The higher nutrients of TLW were mainly derived from the nutrient regeneration of the particulates in the water column. The glacier melting water and runoff water controlled the SW,and these freshwater inputs and the primary production of the phytoplankton together determined the nutrient concentrations and structures in SW. In the water column at about 100 m of TLW,the high ammonia concentration was connected with the metabolic processes of the zooplankton and/or microorganism.
- Arctic,
- Kongsfjorden,
- nutrients,
- water mass

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