ECOLOGICAL STUDIES ON ZOOPLANKTON OF THE WEST LAKE AND THE INFLOWS
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概要
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Zooplankton ecology of the West Lake and the streams that flow into the lake were investigated during January-December 1995. Protozoans were the predominant group among 252 species of zooplankton, accounting for 50.4% of the total number. Due to the seasonal variations in density and biomass of zooplankton, were studied. Changqiao stream recorded the highest density of zooplankton among seven sampling points, with an average of 10,710 inds./L. The lowest density found was Jinsha stream (886 inds./L). Lake Yue recorded the highest biomass of zooplankton in spring (3,737 mg/L) and the lowest biomass occurred in Jinsha stream (0.055 mg/L) in spring. According to the diversity index, Lake Xiaonan and the three streams belong to the β-mesosaprobic level, while other areas belong to the α-mesosaprobic level.
- 信州大学理学部の論文
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