摘要
本文较详细地研究了川南地区养鱼稻田中的饵料生物种群组成和数量变化的规律.并取得如下几项结果:1、饵料生物中的浮游植物有67属,浮游动物有77种,底栖动物有10种,其中以底栖动物的生物量最为丰富.2、饵料生物的数量变化:浮游植物在5月和9月形成两个高峰期;浮游动物只有在5月形成高峰期;底栖动物的两个高峰期出现在6月和9月.3、根据饵料生物种群组成和数量变化规律 提出了相应的稻田养鱼的技术措施.
The present paper deals with the population components and the dynamics of the food organism in the fishcultural paddy field in Southern Sichuan. The main results are included as follows:1.The population components of the food organism contain 67 genera of phytoplankton, 77 species of zooplankton, 10 species of zoobenthos, and among these components the maximum biomass is recovded in benthos.2.In consideration of the biomass seasonal fluctuation, two peaks are recorded in May and September for phytoplankton, only, apeak is recorded in May for zooplankton and two peaks are usually observed in June and September for benthos.3.Based upon the population components and the dynamic principle of the food organism, some suggestions regading the mana-gement of the fishcult ural technique in paddy field are proposed.
出处
《西南农业学报》
1986年第1期25-30,共6页
Southwest China Journal of Agricultural Sciences
