渔业科学进展Issue(3)：1-7,7.DOI:10.11758/yykxjz.20150301
福宁湾浮游植物的群落结构特征
The Community Structure of the Phytoplankton in the Funing Bay
摘要
Abstract
The growth of the phytoplankton greatly depends on the productivity of the water, and the changes in the water environment can directly determine the community structure of the phytoplankton. Therefore the community structure can serve as an indicator of the productivity and the environment of the water. The recent seawall closing the Funing Bay reclamation project (Fujian Province, China) may have caused lots of changes in the environment and the productivity of the water, however, the reports are lacking. In this study, we collected data about the phytoplankton in the Funing Bay in December of 2011 and in May and August of 2012, and analyzed the seasonal variations in the species composition, the dominant species, the biodiversity and the related factors. There were 149 species identified which belonged to 7 Phylum and 61 Genus. The Phylum including most species was Bacillariophyta followed by Pyrrophyta. The number of observed phytoplankton species was the largest in winter, and the second largest was in spring and followed by summer. There was an obvious seasonal variation in the dominant species.Skeletonema costatum,Cerataulina bergonii,Tribonema affine,Coscinodiscus jonesianus, and Rhizosolenia setigera were the dominant species in winter. In spring,Noctiluca scintillans,Ceratium trichoceros,Nitzschia lorenziana andPleurosigma aestuariiwere the dominant species.Cyclotella striata and Skeletonema costatum were the dominant species in summer. The abundance of the phytoplankton was 0.51×104−1298.73×104ind/m3, and the average abundance was 137.90×104 ind/m3. The average diversity index was 1.988. The average evenness index was 0.473. The highest diversity index and evenness index were both observed in spring, followed by summer and winter. There was a positive correlation (P<0.05) between active phosphate and the biomass of phytoplankton in winter and summer, but the correlation was negative (P<0.05) in spring. There was also a highly positive correlation between the abundance of the phytoplankton and the chemical oxygen demand (P<0.01). These results suggested that after the seawall was closed, there had been obvious changes in the biomass and the community structure of the phytoplankton in the Funing Bay, and active phosphate was the limiting factor.关键词
福宁湾/浮游植物/群落结构/环境因子Key words
Funing Bay/Phytoplankton/Community structure/Environmental factors分类
农业科技引用本文复制引用
全汉锋,单秀娟,戴芳群..福宁湾浮游植物的群落结构特征[J].渔业科学进展,2015,(3):1-7,7.基金项目
福建省杰出青年基金项目(多重压力下福宁湾尖刀蛏资源与适应策略的研究)(2012J06022)和国家国际科技合作专项(近海衰退渔业种群重建关键技术合作研究)(2013DFA31410)共同资助。 （多重压力下福宁湾尖刀蛏资源与适应策略的研究）
