浙西山区水库小流域枯水期底栖螺类生态学初步研究

The ecology of benthionic spiral shells in small reservoir basins of west Zhejiang

对浙西山区水库小流域底栖螺类的种类和分布进行调查研究 ,共采集到 6种螺 ;发现不同区域的生物量和密度存在一定的差异 ,这主要由饵料、生境等差异所引起 ;山区小流域生态环境与人类活动密切相关 .

This paper made a study on the species and distribution of benthionic spiral shells in the small reservoir basin in mountain area of west Zhejiang. The result shows that there are some differences in the biomass and density of 6 species of spiral shells collectes. The differences were caused by the different organic bait and environment. And ecological environment is closely connected with the activities of people.