海洋科学2017，Vol.41Issue(1)：96-103,8.DOI:10.11759/hykx20150927001
广西钦州湾外湾表层沉积硅藻分布特征
Distribution of the surface sediment diatoms in the outer bay of Qinzhou bay of Guangxi
摘要
Abstract
Fifty-four surface diatom sediments obtained from the outer bay of Qinzhou bay were examined. A total of 153 species that belonged to 50 genera were identified.Thalassionema nitzschioideswas the most abundant spe-cies. A unimodal method of correspondence analysis was conducted. The results revealed that the diatom assem-blage was mainly affected by the seasurface salinity. Fresh water diatoms such as Achnanthes delicatula, A.hauckiana, A.levanderi, and Cocconeis disculus could be used asindices for low seasurface salinity. In contrast, brackish water species such as Cyclotella striata/C. stylorum and Paralia sulcata combined with some marine dia-toms such as T. frauenfeldii and T. nitzschioides were good indicators of high seasurface salinity. Three diatom zones, whichrepresented different seasurface salinity, were divided by correspondence analysis and closely mapped to the actual regional distribution of 54 surface diatom sediments studied.关键词
钦州湾/外湾/表层沉积/硅藻Key words
Qinzhou bay/the outer bay/surface sediments/diatom分类
农业科技引用本文复制引用
黄玥..广西钦州湾外湾表层沉积硅藻分布特征[J].海洋科学,2017,41(1):96-103,8.基金项目
国家自然科学青年基金资助项目(41306067)Supported by the National Natural Science Foundation of China, No.41306067 （41306067）
