Xu Henglong, Jiang Yong, Xu Guangjian, Warren Alan
Department of Marine Ecology, Ocean University of China, Qingdao 266003, China.
Department of Marine Ecology, Ocean University of China, Qingdao 266003, China.
Mar Pollut Bull. 2017 Mar 15;116(1-2):204-208. doi: 10.1016/j.marpolbul.2016.12.077. Epub 2017 Jan 7.
The indication of spatial variations in annual cycles of functional groups of planktonic ciliates to environmental changes was studied in a bay, northern Yellow Sea. Samples were biweekly collected at five stations with different hydrographic conditions during a 1-year cycle. The second-stage-matrix-based multivariate approach was used to summarize the internal interactions of the ciliate functional groups among five stations during a 1-year period. The functional groups of the ciliates represented a clear spatial variation in annual cycle among five stations. Mantel analysis demonstrated that the spatial variation in annual cycles of the ciliate functional groups were significantly correlated with the changes nutrients (mainly soluble reactive phosphates and nitrates), alone or in combination with salinity among five stations. Based the results, it is suggested that the spatial variation in annual cycles of functional groups of planktonic ciliates may indicated the changes of hydrographic conditions.
在黄海北部的一个海湾，研究了浮游纤毛虫功能群年周期的空间变化对环境变化的指示作用。在一年的周期内，每两周在五个具有不同水文条件的站点采集样本。采用基于第二阶段矩阵的多变量方法，总结了一年中五个站点间纤毛虫功能群的内部相互作用。纤毛虫的功能群在五个站点的年周期中呈现出明显的空间变化。Mantel分析表明，纤毛虫功能群年周期的空间变化与五个站点间营养物质（主要是可溶性活性磷酸盐和硝酸盐）的变化显著相关，单独或与盐度共同作用时均如此。基于这些结果，表明浮游纤毛虫功能群年周期的空间变化可能指示了水文条件的变化。
