桥墩湖浮游植物调查以及鲢、鳙鱼产力的研究
The Study on Plankton Composition and Fish Productivity of Qiaodun Lake, Hubei

2011年9月在湖北省对养殖水体桥墩湖的浮游藻类进行了调查,共鉴定出浮游藻类5门40属43种.浮游藻类的平均细胞数量为1.02×108个/L,平均生物量为14.56 mg/L.浮游动物29种,平均数量和生物量分别为13 189.62个/L、15.71 mg/L.其中中华小尖头藻(Raphidiopsis sinensia)、假鱼腥藻(Pseudanabaena sp.)和中华平裂藻(Merismopedia sinica)占到了总的浮游藻类细胞密度的80；.从生物量来说,优势种为硅藻门的尖针杆藻(Synedra acus),达到了总生物量的15.64；,以及浮游动物的轮虫为74.64；.
In September 2011,an investigation of phytoplankton in the aquaculture Qiaodun lake was made.The identification result showed that there are 43 species,include varieties,belonging to 40 generas and 5 divisions.The average abundance and biomass of phytoplankton was 1.02×10ind/L and 3.32 mg/L respectively.Zooplankton had 29 species,the mean density was 13 189.62 ind/L and biomass was 15.71 mg/L.Raphidiopsis sinensia,Pseudanabaena sp.and Merismopedia sinica contributed over 80% of the total phytoplankton cell dengsity.But from the biamass the predominant species were the Synedra acus in Bacillariophyta and the rotifer in zooplankton,about 15.64% and 74.64% of total biomass,respectively