哈尔滨人工湖泊中原生动物群落变化规律  

The regular changes of protozoan community diversity in an artificial lake in Harbin,China

作　　者：谭晓丽[1] 施心路[1] 刘桂杰[1] 白昕[2] 

机构地区：[1]哈尔滨师范大学,哈尔滨150080 [2]杭州师范学院生命科学学院,杭州310036

出　　处：《生态学报》2005年第10期2650-2657,共8页Acta Ecologica Sinica

基　　金：中国科学院淡水与生物技术国家开放实验室基金资助项目(2002FB09);浙江省自然科学基金资助项目(Y304410);浙江省动物学重点学科资助项目~~

摘　　要：2003年3月～2004年2月调查了哈尔滨人工湖泊原生动物群落多样性的变化规律,应用PFU法研究了原生动物群落季节变化演替的特征.共观察到各类原生动物120种,其中鞭毛虫53种,占原生动物总数的44%,肉足虫9种占原生动物总数的8%,纤毛虫58种占原生动物总数的48%,分析了原生动物在该湖的组成特点.原生动物在此人工湖泊中1个周年内的表现规律为植物性鞭毛虫多,动物性鞭毛虫少;纤毛虫多,肉足虫少.原生动物群落的结构参数(种类组成、个体丰度和多样性指数)因水质的变化而发生变化.在此湖中原生动物的优势种为喇叭虫属(Stentor)、眼虫属(Euglena)、游仆虫属(Euplote)、隐滴虫属(Cryptomonas),常年的居留种为眼虫属(Euglena)、弹跳虫属(Halteria)、侠盗虫属(Strobilidium)、隐滴虫属(Cryptomonas).全年3个采样站的生物多样性指数在1.912～7.473之间.原生动物在1个周年中平均个体丰度出现的规律依次递减的顺序是秋季、夏季、春季、冬季.采样站1的平均个体丰度在四个季节中均高于采样站2、3.The changes of protozoan community diversity in an artificial lake of Harbin area in northeast China from March of 2003 to February of 2004 have been studied by using PFU （Polyurethane Foam Unit） method, the characteristics of the protozoan community development with the change of seasons in this typical water located in the northeast of China have been studied. The results showed that a total of 120 species of protozoa has been found during the investigation, including 53 species of mastigophoras taking up 44%, 9 species of sacrodinas taking up 8%, and 58 species of ciliates taking up 48%. The regularity of protozoa in the investigation indicated that the amount of phytoflagelates and ciliates was more, but the amount of zooflagelates and sarcodinas was less. Furthermore, Protozoan characteristics and their relationship with water quality have also been analyzed. Protozoan community parameters （species composition, individual abundance, diversity index）varied according to the water quality. The dominant protozoan species were Stentor, Euglena, Euplote and Cryptomonas in this lake, and the dwelling species were Euglena, Halteria, Strobilidium and Cryptomonas all through the year; the diversity index was 1. 912-7. 473 in three sampling sites during 12 months. The regular decreasing orders of average individual abundance were autumn, summer, spring, winter and the average individual abundance of sampling site 1 was much higher than the other two in the four seasons.

关 键 词：北方湖泊 原生动物 PFU法 水质 多样性指数 

分 类 号：Q958.1[生物学—动物学]