以浮游植物评价网箱养鱼对鱼塘水质影响的研究

The study of evaluating the influence of netbox cultivating on fishpond water quality through ecological features of phytoplankton community

应用沉降法收集浮游植物，评价网箱养鱼对鱼塘水质的影响。通过四季采样，对浮游植物进行群落结构、生物数量、污染指示属、多样性指数、叶绿素A含量等参数的初步研究，结果表明，网箱养鱼对鱼塘水质有明显的影响，且随着鱼体的生长呈现出逐季增加的趋势。

The seasonal changes in ecological features of phytoplankton community such as population densities,biomass,saprobric indicators, diversity index and chlorophy content were studied in this paper. The results showed that there was a significant influence of netbox cultivating on fishpond water quality. And the influ-ence trended to be increased season by season with the growth of fishes.