[Community structure of phytoplankton and its relationships with environmental factors in drinking water source of Jinshu Bay, Taihu Lake].
By using canonical correspondence analysis (CCA), this paper studied the community structure of phytoplankton and its relationships with environmental factors in the drinking water source of Jinshu Bay, Taihu Lake. A total of 7 phylum and 58 genera were identified, and the phytoplankton community was dominated by Cyanophyta, Bacillariophyta, and Chlorophyta. The quantity of phytoplankton was slightly higher in summer (250 x 10(4) ind x L(-1)) than in spring (238 x 10(4) ind x L(-1)), but the community structure differed obviously between the two seasons. In spring, Cyanophyta was the dominant phylum, and Anabaena was the dominant genus; in summer, Chlorophyta was the dominant phylum, with no dominant genus but abundant quantity of Merismopedia and Scenedesmus. Besides temperature, the main environmental factors affecting the distribution of phytoplankton in spring were ammonium-nitrogen, total phosphorus, total nitrogen, and phosphate, while those in summer were total nitrogen, ammonium-nitrogen, phosphate, suspended solids, macrophytes, total phosphorus, and transparency.
Li
Qin-qin
QQ
State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China. liqinqin8848@163.com
Deng
Jian-cai
JC
Hu
Wei-ping
WP
Hu
Liu-ming
LM
Gao
Feng
F
Zhu
Jin-ge
JG
D002681:China; D044424:Cyanophora / Q000254:growth & development; D017377:Diatoms / Q000254:growth & development; D017753:Ecosystem; D004784:Environmental Monitoring; D005618:Fresh Water / Q000032:analysis; D009584:Nitrogen / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D010839:Phytoplankton / Q000145:classification* / Q000254:growth & development*; D011157:Population Dynamics; D014867:Water / Q000032:analysis; D014876:Water Pollution / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
D014867:Water; D010758:Phosphorus; D009584:Nitrogen