Physical and biological controls on the summer chlorophyll bloom to the east of Vietnam

被引:38
作者
Chen, Gengxin [1 ]
Xiu, Peng [1 ,2 ]
Chai, Fei [2 ]
机构
[1] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
[2] Univ Maine, Sch Marine Sci, Orono, ME USA
基金
中国国家自然科学基金;
关键词
Chlorophyll; South China Sea; Advection; Upwelling; Biology; DIMENSIONAL ECOSYSTEM MODEL; SOUTH CHINA SEA;
D O I
10.1007/s10872-014-0232-x
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
The contributions of physical and biological processes to the chlorophyll-a (Chl-a) bloom to the east of Vietnam in summer are examined. The offshore jet redistributes Chl-a concentration by transporting high Chl-waters from the continental margin to the east of Vietnam. The jet also contributes to high concentrations of nutrients and zooplankton biomass that lead to a dynamic balance between increased nutrients and grazing pressure for phytoplankton growth. As a consequence, the net biological processes reduce the Chl-a concentrations in the broader offshore region, but they also maintain the filaments with higher Chl-a stretching away from the coast due to the reduced grazing pressure.
引用
收藏
页码:323 / 328
页数:6
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