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浮游植物是水体生物生产力的基础,是食物链的第一个环节,太阳能通过它固定而进入水域生物生产过程。柳叶湖是利用天然饵料资源,以鲢、鳙为主体鱼的养殖湖泊。调查浮游植物初级生产力,可用于直接估算鲢鳙鱼产力,为湖泊鱼种的合理放养提供参数。一、工作方法在全湖共选择两个测站,一个在占天湖区的上游两水口会合处的湖心区设一测站,代表占天湖区的生产力;另一测
Phytoplankton is the basis of the biological productivity of water body and the first link in the food chain. Solar energy can enter into the water biological production process through it. Willow Lake is the use of natural food resources, silver carp, chickens as the main breeding lake. Investigation of primary productivity of phytoplankton can be used to directly estimate the production of silver carp and bighead carp so as to provide parameters for rational stocking of lakes and fish species. First, the working methods In the whole lake, a total of two stations were selected, one in the upper reaches of Tianhu District, where the junction of the lake two heart stations set up a test station, representing the productivity of Tianhu District; the other test