环境工程学报2011,Vol.5Issue(8):1790-1794,5.
鲢鳙放养水平对淀山湖浮游植物群落影响的围隔实验
Stocking level effects of silver and bighead carps on the phytoplankton community in enclosures in Dianshan Lake
摘要
Abstract
Enclosures stocked with gradient biomass(0,40,80,120 g/m3) of silver and bighead carps were set up in Dianshan Lake to study the effects on algal control.It was indicated that 80 g/m3 and 120 g/m3 density of silver and bighead carp had a significant effect in decreasing the content of Chl.a;also 80 g/m3density of silver and bighead carp were most effective in reducing the percentage of Cyanophyta.However,the fish's grazing on the macro-algae and macro-zooplankton stimulated the growth of micro-algae such as Merismopedia and Chroococcus.After silver carp and bighead carp were stocked for more than three months,the dominant algae in enclosures were Cyanophyta,followed by Cryptophyta.Stocking of filter feeders(silver and bighead carps) was just suitable for controlling density of Cyanophyta not total biomass of algae.关键词
生物操纵/鲢鳙/藻类控制/围隔实验/淀山湖Key words
biomanipulation/silver carp and bighead carp/algal control/enclosure experiment/Dianshan Lake分类
资源环境引用本文复制引用
王丽卿,许莉,陈庆江,季高华,张瑞雷,范志锋,张玮,赵风斌..鲢鳙放养水平对淀山湖浮游植物群落影响的围隔实验[J].环境工程学报,2011,5(8):1790-1794,5.基金项目
上海市科委重大项目 ()
上海市重点学科建设项目资助 ()