%0 Journal Article
%T Study on the spatio-temporal distribution of cyanobacteria in the East Tiaoxi River and its relationship with environmental factors<br>东苕溪蓝藻时空分布及其与环境因子关系研究
%A DING Yuan
%A LI Jianhu
%A WANG Yulai
%A HUANG Liangliang
%A <br>丁源
%A 李建华
%A 王育来
%A 黄亮亮
%J 环境科学学报
%D 2012
%I 
%X An investigation of the spatio-temporal distribution of phytoplankton community was carried out in the autumn and spring seasons in the East Tiaoxi River. Chlorophyll a concentration, density and composition of phytoplankton were measured. Furthermore, environmental factors influencing the spatio-temporal distribution of cyanobacteria were also investigated. The obtained results showed that a total of 132 taxa in 60 genera of eight phyla was observed, including 14 taxa in nine genera belonged to cyanobacteria, accounting for 60.3% of the phytoplankton density. The highest values of cyanobacteria density were found three kilometers away from the mouth. Microcystis aeruginosa dominated downstream in autumn and Anabaena flos-aquae dominated in spring, while Phormidium tenue dominated upstream. The special hydrodynamic conditions and high concentration of nutrients led to a sustained high abundance of cyanobacteria downsteam the river. Correlation analysis showed that the density of cyanobacteria was significantly correlated with the water depth and total nitrogen concentration (p<0.01), and also positively correlated with dissolved total carbon (p<0.05).
%K cyanobacteria
%K density
%K the Southern Taihu Lake
%K total nitrogen
%K the East Tiaoxi River<br>蓝藻
%K 细胞密度
%K 南太湖
%K 总氮
%K 东苕溪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=81AC3F1520EEE8E871BDBF9F7F093692&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=708DD6B15D2464E8&sid=5DBE03845979A02E&eid=F9510B5449D4E7A0&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=44