白石水库底栖动物群落结构特征及多样性研究

Study on benthic community structure and diversity in Baishi Reservoir

本研究采用野外生态学方法,于2013年9月—2014年7月期间,对白石水库底栖群落结构及多样性开展了调查,共调查4季10月。结果表明,白石水库的底栖动物共检出2门14种,密度为512ind/m^(2),生物量为113.35g/m^(2),密度随季节变动情况是春季>冬季>夏季>秋季,生物量随季节变动情况是春季>夏季>冬季>秋季,平均多样性指数(Shannon-Wiener)为2.05,平均均匀度指数(J)为0.54,此外对白石水库底栖动物群落结构进行了分析,并与其他辽宁省水库底栖动物群落结构进行了比较。针对白石水库底栖动物群落结构,提出了水生态健康对策,以期能为发展白石水库优水渔业提供基础数据。

In this study,the benthic community structure and diversity of Baishi Reservoir were investigated using field ecological methods for 4 seasons and 10 months from September 2013 to July 2014.The results showed that benthic species in Baishi Reservoir were detected 14 species of 2 phyla,with densities of 5.12×10^(2)ind/m^(2),biomass of 113.35g/m^(2),average Shannon-Wiener index(H′)of 2.05,average evenness index(J)of 0.54.Seasonal changes in density showed that spring>winter>summer>autumn,and seasonal changes in biomass showed that spring>summer>winter>autumn.The benthic community structure of Baishi Reservoir was analyzed,and compared with other reservoirs in Liaoning Province.The study of benthic community structure of Baishi Reservoir proposed countermeasures for water ecological health,in order to provide basic data and countermeasures for Baishi Reservoir superior water fisheries.