Sun Jun, Zhao Ran, Zhang Li-yong
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China.
Ying Yong Sheng Tai Xue Bao. 2011 Apr;22(4):1045-52.
In June 15-25, 2003, the first sluice discharge duration of the Three Gorges Dam, water samples were taken from a grid of survey stations around the Yangtze River Estuary and its adjacent waters to analyze the characteristics of phytoplankton assemblages. In the survey area, the major phytoplankton groups were diatoms and dinoflagellates, and a few species belonging to Chrysophyceae and Chlorophyceae were observed. The cell abundance of the assemblages ranged from 0.2 to 1504.2 cells ml(-1), with an average of 72.7 cells ml(-1), and the dominant species were Skeletonema spp., Prorocentrum dentatum, and Scrippsiella trochoidea. The highest cell abundance was appeared in north diluted waters and southwest inshore waters. The cell abundance was the maximum in mid (10 m) water layer, and the minimum in bottom layer. In diluted waters, Skeletonema spp. was the dominant species, and mainly presented in surface water layer; while in the waters with the diluted water of Yangtze River and the mixed water of Taiwan Warmer Current and Yellow Sea, Prorocentrum dentatum dominated, and mainly distributed in surface and mid water layers.
2003年6月15日至25日，三峡大坝首次泄洪期间，在长江河口及其邻近海域的一系列调查站位采集水样，以分析浮游植物群落特征。调查区域内，主要浮游植物类群为硅藻和甲藻，还观察到少数金藻门和绿藻门的种类。群落细胞丰度范围为0.2至1504.2个细胞/毫升，平均为72.7个细胞/毫升，优势种为骨条藻属、具齿原甲藻和锥状斯氏藻。细胞丰度最高值出现在北部冲淡水域和西南部近岸水域。细胞丰度在中层（10米）水层最高，在底层最低。在冲淡水域，骨条藻属为优势种，主要出现在表层水层；而在长江冲淡水与台湾暖流和黄海混合水区域，具齿原甲藻占优势，主要分布在表层和中层水层。
