中国海洋大学学报（自然科学版）2009，Vol.39Issue(4)：597-603,7.
北黄海典型水域秋冬季浮游植物群落的昼夜变化
Diel Rhythm of Phytoplankton in the Waters of North Yellow Sea in Autumn and Winter
摘要
Abstract
Twenty-four hours observations with three hours interval on the diel rhythm of phytoplankton in the central part of the North Yellow Sea were conducted in winter(January, 2007) and autumn(October, 2007) respectively. The results showed that the abundance of phytoplankton fluctuated with time at each water layer. The higher abundance of phytoplankton appeared generally in daytime at the water layer of 10～20 m which was opposite to the water layers of 20～30 m and 30～bottom in winter. In autumn, higher abundance for each layer mainly turned up in the night, and phytoplankton distributed much more at the bottom water column than that at the upper water column. The dominant species compositions of two seasons remained constant. The dominant species in winter was Palalia sulcata mostly found at the bottom water column, and Chaetoceros lauderi and Chaetoceros densus were the most dominant species in autumn found at the bottom water column and the upper water column, respectively. The diel rhythm of diversity and evenness indexes did not change significantly in winter, but it differed at the water layer of 0～10 m from that at the water layer of 20～30 m in autumn. The diversity index in autumn was higher than that in winter while the evenness index indicated no obvious seasonal changes.关键词
北黄海/浮游植物/昼夜变化Key words
the North Yellow Sea/phytoplankton/diel rhythm分类
海洋科学引用本文复制引用
刘光兴,杜秀宁..北黄海典型水域秋冬季浮游植物群落的昼夜变化[J].中国海洋大学学报（自然科学版）,2009,39(4):597-603,7.基金项目
国家908专项(908-01-ST02)资助 （908-01-ST02）
