Spatial-temporal dynamics of biogenic silica in the southern Yellow Sea  

作　　者：Dan Zhang Shan Jian Jun Sun Xiaoyun Leng Guicheng Zhang 

机构地区：[1]Tianjin Key Laboratory of Marine Resources and Chemistry,Tianjin University of Science and Technology,Tianjin 300457,China [2]Research Centre for Indian Ocean Ecosystem,Tianjin University of Science and Technology,Tianjin 300457,China

出　　处：《Acta Oceanologica Sinica》2019年第12期101-110,共10页海洋学报（英文版）

基　　金：The National Key Research and Development Project of China under contract No.2019YFC1407805;the National Natural Science Foundation of China under contract Nos 41876134 and 41676112;the Changjiang Scholar Program of Chinese Ministry of Education under contract No.T2014253 to Jun Sun;the NSFC Shiptime Sharing Project under contract Nos NORC2014-01 and NORC2015-01;the Tianjin Education Commission Research Plan under contract No.2018KJ100;the Foundation of Tianjin Key Laboratory of Marine Resources and Chemistry(Tianjin University of Science&Technology)under contract No.201802

摘　　要：Concentrations of biogenic silica(BSi) in the southern Yellow Sea were determined during four cruises(spring:April–May 2014;autumn: November 2014;summer: August–September 2015;winter: January 2016). Samples of BSi were measured using the double extraction method. Seasonal and spatial variations of BSi and the potential correlation between chlorophyll a(Chl a) content and BSi in four seasons were measured in this study. Significant spatial variability was observed in seawater BSi concentrations. The average concentration of BSi was highest in winter and lowest in spring. Furthermore, the relationships between concentrations of BSi and hydrological parameters were also discussed. There was a significant positive correlation between Chl a and BSi. The concentrations of BSi showed significant relationships with temperature and the concentrations of silicates, total inorganic nitrogen and total inorganic phosphorus, indicating that distribution of BSi was affected by temperature and nutrient level.Concentrations of biogenic silica(BSi) in the southern Yellow Sea were determined during four cruises(spring:April–May 2014; autumn: November 2014; summer: August–September 2015; winter: January 2016). Samples of BSi were measured using the double extraction method. Seasonal and spatial variations of BSi and the potential correlation between chlorophyll a(Chl a) content and BSi in four seasons were measured in this study. Significant spatial variability was observed in seawater BSi concentrations. The average concentration of BSi was highest in winter and lowest in spring. Furthermore, the relationships between concentrations of BSi and hydrological parameters were also discussed. There was a significant positive correlation between Chl a and BSi. The concentrations of BSi showed significant relationships with temperature and the concentrations of silicates, total inorganic nitrogen and total inorganic phosphorus, indicating that distribution of BSi was affected by temperature and nutrient level.

关 键 词：biogenic silica NUTRIENTS chlorophyll a PHYTOPLANKTON DIATOM Yellow Sea 

分 类 号：Q178.1[生物学—水生生物学]