Impact on primary production by mesoscale eddies in the northwest South China Sea: A case study by satellite and field observation

文献类型： 外文期刊

第一作者： Liu Huaxue

作者： Liu Huaxue;Huang Honghui;Hu Zifeng;Huang Liangmin;Ke Zhixin;Tan Yehui;Song Xingyu

作者机构：

关键词： South China Sea; Xisha Island; Primary production

期刊名称：REGIONAL STUDIES IN MARINE SCIENCE （ 影响因子：1.624； 五年影响因子：1.962 ）

ISSN： 2352-4855

年卷期： 2016 年 8 卷

页码：

收录情况： SCI

摘要： Phytoplankton biomass and production coupled with environmental parameters were investigated in northwestern South China Sea during the South China Sea Open Cruise by R/V "Shiyan 3'' in September 2009. Both satellite and in situ data indicated that cold eddy decreased sea surface temperature and enhanced Primary production (PP) around Xisha Island adjacent sea. Nutricline, thermocline and chlorophyll a contour line were coincident generally in the eastern part of the Y area, indicating the impact of hydrological processes on ecological and environmental profiles. PP decreased with the increasing water depth in the euphotic layer, and the maximum value appeared in the surface layer. The surface PP value was 0.59 mgC m(-3) h(-1) and the integrated primary production (IPP) was 250 mgC m(-2) d(-1) at Y2, slightly lower than that at X5, with the surface PP value of 0.66 mgC m(-3) h(-1) and the IPP value of 259.33 mgC m(-2) d(-1). The descend range of IPP in Y area was higher than the ascensional range in X area, indicating that the impact of cold eddy on phytoplankton biomass and production was more obvious than the impact of the warm eddy in this study. (C) 2016 Elsevier B.V. All rights reserved.

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