摘要:
为掌握轮虫池不同空间浮游生物的种群动态，对厦门市3个轮虫池浮游植物及浮游动物的种类、数量及分布情况进行研究。结果表明：浮游植物以绿藻门、隐藻门、硅藻门、裸藻门、金藻门、甲藻门、蓝藻门为主，共7门15属17种，其中，绿藻门4属4种，隐藻门2属2种，硅藻门3属4种，裸藻门1属1种，金藻门2属2种，甲藻门2属3种，蓝藻门1属1种；轮虫发生高峰前期浮游植物平均生物量为147.64 mg·L-1，轮虫发生高峰期浮游植物生物量为99.41 mg·L-1。浮游植物多样性指数轮虫高峰前期为2.94，高峰期为3.12。浮游动物共8种，其中原生动物4种，轮虫2种，桡足类2种；浮游动物平均生物量为83.10 mg·L-1，其中以褶皱臂尾轮虫为主，平均生物量为73.13 mg·L-1，浮游动物多样性指数为0.73。所测轮虫培育池浮游植物垂直分布大多是鞭毛藻（如金藻），表层大于底层，其差异主要由鞭毛藻的运动造成，轮虫的空间分布与风浪、溶氧关系密切。
关键词:
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轮虫
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培育池
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浮游生物
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种群动态
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生物量
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空间分布
Abstract:
In order to grasp the population dynamics of plankton at different space in rotifer ponds, the species, quantity and distribution of phytoplankton and zooplankton in the three rotifer ponds in Xiamen were studied. The results showed that Chlorophyta, Cryptophyta, Bacillariophyta, Euglenophyta, Chrysophyta, Pyrrophyta and Cyanophyta were the main species of phytoplankton. There were 17 species in 15 genera of 7 phyla, among which there were 4 species of Chlorophyta in 4 genera, 2 genera of Cryptophyta in 2 genera, 4 species of Bacillariophyta in 3 genera, 1 specie of Euglenophyta in 1 genus, 2 species of Chrysophyta in 2 genera, 2 species of Pyrrophyta in 3 genera and 1 specie of Cyanophyta in 1 genera. The average biomass of phytoplankton at the early stage of the peak of rotifers was 147.64 mg·L-1, while that at the peak of rotifers was 99.41 mg·L-1. The diversity index of phytoplankton was 2.94 at the early stage of the peak of rotifers and 3.12 at the peak. There were 8 species of zooplankton, among which there were 4 protozoans, 2 rotifers and 2 copepods. The average biomass of zooplankton was 83.10 mg·L-1, of which the Brachionus plicatilis was the majority, with an average biomass of 73.13 mg·L-1 and a diversity index of zooplankton of 0.73. The measured vertical distribution of phytoplankton in the rotifer-culturing ponds was mostly dinoflagellates (such as Chrysophyceae), the number of which in the surface layer was greater than that in the bottom layer. The difference was mainly caused by the movement of dinoflagellates. The spatial distribution of rotifers was closely related to the wind, waves and dissolved oxygen.
百度学术
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