调查结果表明：本调查区域大型底栖动物较贫乏，经鉴定有56种；
The result shows that the benthic macrofauna in theinvestigated area was rare, 56 species were only identified.
本研究利用生物监测方法，探明了京杭运河徐州段大型底栖无脊椎动物的生物种群及其分布。
The biolocial population and distribution of benthic macro-invertebrates in Xuzhou region of Jinghang Great Canal have been ascertained bybioassay method.
本研究对青海湖底栖动植物的种类及数量进行了调查和分析，并对湖泊底质条件以及底栖生物的生产力进行了评估。
In our research, we have investigated and analysed the types and amount of benthos in Qinghai lake, and evaluated the lake bottom condition and benthos' productivity.
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