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室外轮虫培育池(简称轮虫池,下同)和养鱼池同是一种人工生态系统。轮虫池具有外来有机质特别丰富、生物生产力极高和食物链短的特点,并不受鱼类下行效应的影响。研究轮虫池的浮游生物,不但有助于提高轮虫池的生产力,而且对探讨水域生态系功能也有一定的理论意义。近年来,利用土池大量培育轮虫正逐步开展(Li Yonshan,1996;李永
Outdoor rotiflorus breeding pool (referred to as rotifers, the same below) and fish ponds is a kind of artificial ecosystem. Rotifer ponds have the characteristics of extraordinarily rich organic matter, high biological productivity and short food chain, and are not affected by the downward effect of fish. Studying plankton in planktonic ponds not only helps to improve the productivity of rotifer ponds, but also has certain theoretical significance in exploring the function of ecosystem in water bodies. In recent years, the use of soil ponds to nurture a large number of rotifers are gradually developed (Li Yonshan, 1996; Li Yong