青山水库底栖动物群落初步研究

1996年10月－1997年7月对青山水库底栖大型无脊椎动物群落进行了4次采样调查，共发现大型底栖无脊椎动物16种，其中寡毛类5种，水生昆虫7种，软件动物2种，蛭类和线虫各1种。青山水库底栖动物群落密度和生物量的水平变化为库出口＞库中心＞进口。湖区底栖动物群落占优势的各类为：刺夹长足摇蚊（Tanypus punctipennis）、花翅前突摇蚊（Procladius choreus)和霍甫水丝蚓（Limnodrilus hoffmeisteri)。调查结果表明，目前青山水库底栖动物群落的种类组成指示该水体已属富营养型，但从生物量上分析，目前青山水库应属中营养。

A preliminary investigation on macrozoobenthos communities of the Qingshan Lake

During the 1996\|10~1997\|07, the macrozoobenthos communities of the Qingshan lake were investigated. Samples were collected from three sampling stations. 16 species of macrozoobethos have recorded. Tanypus\,punctipennis\,procludius choreus and limnodrilus hoffimeisteri were dominant species in density and biomass. According to the indicator species, the Qingshan lake is an eutrophication lake, but it is a midtrophication lake in iomass.