Diel variation of nutrients and chlorophyll <i>a</i> concentration in the Qiongdong sea region during the summer of 2013

Chen Fajin; Zeng Zhen; Meng Yafei; Zhu Qingmei; Xie Lingling; Zhang Shuwen; Chen Qingxiang; Chen Jianfang

doi:10.3969/j.issn.0253-4193.2016.04.007

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Chen Fajin, Zeng Zhen, Meng Yafei, Zhu Qingmei, Xie Lingling, Zhang Shuwen, Chen Qingxiang, Chen Jianfang. Diel variation of nutrients and chlorophyll a concentration in the Qiongdong sea region during the summer of 2013[J]. Haiyang Xuebao, 2016, 38(4): 76-83. doi: 10.3969/j.issn.0253-4193.2016.04.007

Citation:

Chen Fajin, Zeng Zhen, Meng Yafei, Zhu Qingmei, Xie Lingling, Zhang Shuwen, Chen Qingxiang, Chen Jianfang. Diel variation of nutrients and chlorophyll a concentration in the Qiongdong sea region during the summer of 2013[J]. Haiyang Xuebao, 2016, 38(4): 76-83. doi: 10.3969/j.issn.0253-4193.2016.04.007

Citation:

Chen Fajin, Zeng Zhen, Meng Yafei, Zhu Qingmei, Xie Lingling, Zhang Shuwen, Chen Qingxiang, Chen Jianfang. Diel variation of nutrients and chlorophyll a concentration in the Qiongdong sea region during the summer of 2013[J]. Haiyang Xuebao, 2016, 38(4): 76-83. doi: 10.3969/j.issn.0253-4193.2016.04.007

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Diel variation of nutrients and chlorophyll a concentration in the Qiongdong sea region during the summer of 2013

doi: 10.3969/j.issn.0253-4193.2016.04.007

1.
Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction Technologies, Guangdong Ocean University, Zhanjiang 524088, China
2.
Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

Received Date: 2015-08-11
Rev Recd Date: 2015-11-03

Abstract

Abstract

The distribution and controlling factors of diel variation of nutrients and chl a were studied on the basis of 2 continuously measuring stations during the summer (August) in 2013. The results indicated that the thermocline weakened the transportation of nutrients upward. The diel variation of silicate,nitrate,and phosphate on the bottom of nearshore Station S1 appeared a semidiurnal period,but not at offshore Station S2,suggesting that nutrients at nearshore station S1 was influenced by the tidies more obviously. Moreover,the chlorophyll a level at S2 displayed vertical stratification,and low chlorophyll a level at S1 at night reflected the feeding of zooplankton. Our results suggests that the chlorophyll a and nutrients at S1 and at S2 were controlled by the thermocline,tidies,bioglogical effect and light. The tides are more obvious at S1,and the chlorophyll a was also affected by the feeding of zooplankton. It is because chlorophyll a and nutrients are controlled by many environmental factors,making chlorophyll a unrelated to nutrients.
- Qiongdong,
- nutrients,
- chlorophyll a,
- diel variation

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References(29)

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