Influence of mesoscale eddies on primary production in the South China Sea during spring inter-monsoon period

HU Zifeng; TAN Yehui; SONG Xingyu; ZHOU Linbin; LIAN Xiping; HUANG Liangmin; HE Yinghui

doi:10.1007/s13131-014-0431-8

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Article Navigation > Acta Oceanologica Sinica > 2014 > 33(3): 118-128

HU Zifeng, TAN Yehui, SONG Xingyu, ZHOU Linbin, LIAN Xiping, HUANG Liangmin, HE Yinghui. Influence of mesoscale eddies on primary production in the South China Sea during spring inter-monsoon period[J]. Acta Oceanologica Sinica, 2014, 33(3): 118-128. doi: 10.1007/s13131-014-0431-8

Citation:

HU Zifeng, TAN Yehui, SONG Xingyu, ZHOU Linbin, LIAN Xiping, HUANG Liangmin, HE Yinghui. Influence of mesoscale eddies on primary production in the South China Sea during spring inter-monsoon period[J]. Acta Oceanologica Sinica, 2014, 33(3): 118-128. doi: 10.1007/s13131-014-0431-8

Citation:

HU Zifeng, TAN Yehui, SONG Xingyu, ZHOU Linbin, LIAN Xiping, HUANG Liangmin, HE Yinghui. Influence of mesoscale eddies on primary production in the South China Sea during spring inter-monsoon period[J]. Acta Oceanologica Sinica, 2014, 33(3): 118-128. doi: 10.1007/s13131-014-0431-8

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Influence of mesoscale eddies on primary production in the South China Sea during spring inter-monsoon period

doi: 10.1007/s13131-014-0431-8

1.
Key Laboratory of Marine Bio-resources Sustainable Utilization (LMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100049, China
2.
Key Laboratory of Marine Bio-resources Sustainable Utilization (LMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
3.
Key Laboratory of Marine Bio-resources Sustainable Utilization (LMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;Marine Biology Research Station at Daya Bay, Chinese Academy of Science, Shenzhen 518121, China
4.
State Key Laboratory of Tropical Oceanology (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

Received Date: 2013-01-18
Rev Recd Date: 2013-05-07

Abstract

Abstract

Mesoscale eddies have been suggested to have an impact on biological carbon fixation in the South China Sea (SCS). However, their overall contribution to primary production during the spring inter-monsoon period is still unknown. Based on large-scale biological and environmental in situ observations and synchronous remote sensing data, the distribution patterns of phytoplankton biomass and the primary production, and the role of mesoscale eddies in regulating primary production in different eddy-controlled waters were investigated. The results suggested that the surface chlorophyll a concentrations and water column integrated primary production (IPP) are significantly higher in cyclonic eddies and lower in the anticyclonic eddies as compared to that in non-eddy waters. Although eddies could affect various environmental factors, such as nutrients, temperature and light availability, nutrient supply is suggested to be the most important one through which mesoscale eddies regulated the distribution patterns of phytoplankton biomass and primary production. The estimated IPP in cyclonic and anticyclonic eddies are about 29.5% higher and 16.6% lower than the total average in the whole study area, respectively, indicating that the promotion effect of mesoscale cold eddies on the primary production was much stronger than the inhibition effect of the warm eddies per unit area. Overall, mesoscale eddies are crucial physical processes that affect the biological carbon fixation and the distribution pattern of primary production in the SCS open sea, especially during the spring inter-monsoon period.
- mesoscale eddies,
- chlorophyll a,
- primary production,
- vertically generalized production model

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References(29)

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