| 三峡水库小江回水区水华爆发期原生动物群落的初步研究 |
| Studies on the Protozoan Community Characteristics during the Phytoplankton Bloom in Xiaojiang Backwater Area of Three Gorges Reservior |
| 投稿时间：2013-05-13 修订日期：2013-07-23 |
| DOI： |
| 中文关键词:小江回水区 水华 原生动物群落 |
| 英文关键词:Xiaojiang backwater region water bloom protozoan community |
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| 中文摘要: |
| ２００９年夏季三峡水库支流小江回水区局部水域爆发水华，在水华爆发期的５月２９日和６月１８日开展了水华原生动物采样调查，分析了群落变动特征及其与水环境、水华藻类的关系。结果表明，水华均以蓝藻为主，其中５月的优势种类为水华鱼腥藻（Ａｎａｂａｅｎａａｑｕａｅ），６月的优势种类为微囊藻（Ｍｉｃｒｏｃｙｓｔｉｓ），其次是浮游鱼腥藻（Ａｎａ ｂａｅｎａｐｌａｎｃｔｏｎｉｃａ）和小环藻（Ｃｙｃｌｏｔｅｌｌａ）；５月和６月的总磷、磷酸盐、叶绿素ａ含量、溶解氧、水温与ｐＨ等差异显著（Ｐ＜０．０５）；５月鉴定出２种肉足虫，６月为１０种肉足虫和５种纤毛虫；原生动物平均密度分别为２００个／Ｌ和９７０个／Ｌ。冗余分析结果显示，与原生动物密度显著相关的水环境因子为总磷（ＴＰ）和溶解氧（ＤＯ），浮游植物密度因子为浮游鱼腥藻和微囊藻。 |
| 英文摘要: |
| In the summer of 2009，water bloom occurred in the local water of Xiaojiang River backwater area of Three Gorges Reservoir. In this paper, during the algal bloom period，characteristics of protozoan community were studied in May 29th and June 18th，respectively. Their relationships with the water environment，water bloom algae were also been analyzed. Our results indicated that the dominant algae was cyanobacteria，and the bloom species were Anabaena aquae in May，but Microcystis，Anabaena planctonica and Cyclotella in June. The significant differences between May and June were found in the total phosphorus，phosphate，chlorophyll a，dissolved oxygen，temperature and pH(P<0.05). The protozoan species number in May and June was 2 and 15，respectively. The average protozoan density in June was 970 ind. /L，which was more than that (200 ind. /L) in May. Redundancy analyses showed that the water environmental factors significantly affecting the densities of protozoa species were TP and DO，and the densities of protozoa correlated significantly with Anabaena planctonica and Microcystis densities. |
| 陈小娟,潘晓洁,邹 曦.2013.三峡水库小江回水区水华爆发期原生动物群落的初步研究[J].水生态学杂志,34(6):1-6. |
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