期刊
MARINE MICROPALEONTOLOGY
卷 157, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.marmicro.2020.101859
关键词
Radiolaria; Kuroshio current; Western North Pacific; Surface sediment; Marginal sea; Environmental variables
类别
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA23050304, XDA11020303]
- National Natural Science Foundation of China [40776070]
- Scientific and Technological Innovation Project - Qingdao National Laboratory for Marine Science and Technology [2015ASKJ01]
In this study, we analyzed 45 surface sediment samples collected in the marginal seas of the Western North Pacific, including the South China Sea, the East China Sea, and the Philippine Sea, to investigate the radiolarian assemblages and their relationship with upper layer environmental conditions. Based on the results of Q-mode cluster analysis, the radiolarian assemblages can be divided into four clusters, corresponding to the North Equatorial Current assemblage, North Equatorial Current Bifurcation assemblage, Kuroshio-South China Sea assemblage, and Kuroshio-East China Sea assemblage. Winter sea surface temperature (SSTw), winter sea surface salinity (SSSw), and annual silicate concentration were the most significant environmental variables associated with the radiolarian assemblages, among which SSTw showed the highest correlation with the radiolarian fauna. The significant influences of SSTw and SSSw suggested that the seasonal change of the North Equatorial Current-Kuroshio Current system exerted a crucial effect on the abundance and distribution pattern of the radiolarian fauna.
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