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本文报道了主养青鱼净产11.25、15吨/公顷·年两个产量级池塘的浮游植物和有机碎屑组成、现存量的研究结果:浮游植物丰度为20-60mg/L,有机碎屑丰度为30-70mg/L;浮游植物群落由7种优势种群交替组成,它们分别是隐藻(Cryptomonas.spp)、蓝裸甲藻(Gymnodinumcyaneum)、裸藻(Euglenaspp)、针杆藻(Synedrasp.)和菱形藻(Nitzschiasp.)、尖头藻(RaphidiopsissPP)、裂面藻(Merismopediaspp.)、绿球藻类(Chlorellaceaespp.),隐藻为主的鞭毛藻类占优势。文中还探讨了浮游植物与鱼池水质净化、浮游植物有机碎屑丰度与鱼产量的关系。
In this paper, we report the phytoplankton and organic detritus in two major production-grade ponds of 11.25 and 15 t ha-1, respectively. The results of the existing stocks are as follows: the abundance of phytoplankton is 20-60 mg / L, The crumb abundance was 30-70 mg / L. The phytoplankton community consisted of seven dominant species, Cryptomonas.spp, Gymnodinumcyaneum, Euglenaspp, Synedrasp. And Nitzschiasp., Raphidiopsisspp, Merismopediaspp., Chlorellacea espp. And Cryptophyta dominate. The paper also discussed the relationship between phytoplankton and fish pond water purification, phytoplankton organic detritus abundance and fish yield.