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中文摘要：
2006年4月30日～2006年8月31日，对舟山市马岙镇的旭旺无公害对虾精养基地水体的浮游微藻群落结构进行调查分析。结果表明：精养塘中共检出常见浮游微藻5门16种，其中蓝藻4种，绿藻5种，硅藻5种，裸藻1种，甲藻1种。主要蓝藻有微小平裂藻（Merismopedia tenuissima．）、小席藻（Phorimidiumsp．）、螺旋藻（Spirulinasp．）等；常见绿藻有小球藻（Chlorellas刚、衣藻（Chlamydomonassp．）等；常见硅藻有舟形藻（NaviculaspJ、尖针杆藻（Synedraacus）等。养殖早期3门9种，蓝藻门与裸藻门的微藻未检查到，且浮游微藻细胞数量为0．8×107cells·L-1，香浓多样性指数平均为0．445。养殖后期4门12种，多甲藻未出现了，浮游微藻细胞数量为1．5×107cells·L-1，香浓多样性指数平均为0．375。浮游藻类多样性指数总体表现为养殖前期高后期低的特征。
英文摘要：
We surveyed and analyzed on the community structure of Phytoplankton in the white shrimp culture Ponds in Xuwang non-polluted culture base, Zhoushan, Zhejiang between April 30th, 2006 and August 31st, 2006. The results showed that total of 5 phyla 16 species were identified, including 4 Cyanophyta species, 5 Chlorophyta species, 5 Bacillariophyta species, 1 Euglenophyta species and 1 Pyrrophyta species. Cyanophyta mainly includes Merismopedia tenuissima., Phorimidium sp., Spirulina sp., et al; common Chlorophyta includes Chlorella sp., Chlamydomonas sp.,et al; common Bacillariophyta includes Navicula sp, Synedra acus. In the early culture period, total of 3 phyla 9 species were identified, without Cyanophyta and Euglenophyta species, Their average valuedensity was 0.8×107 cells.L1, biodiversity index was 0.445. In late culture period, 4 phyla 12 species without Pyrrophyta species were identified ,the average valuedensity was 1.5× 107 cells.L-1, biodiversity index was 0.375. The species numbers, biomass and biodiversity index were high in early culture period and low in lateculture period.
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