Effects of common carp on the water quality of shallow lakes：an enclosure experiment
YUE Ru-yan, YANG Kai, ZHANG Xiu-feng, LIU Zheng-wen*
1. Department of Ecology and Hydrobiology, Jinan University, Guangdong Guangzhou 510632, China; 2. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Jiangsu Nanjing 210008, China
Common carp (Cyprinus carpio), widely distributed in shallow lakes, can affect water quality by disturbing sediment and excreting nutrients. In order to study the impact of common carp on water quality of shallow lakes, an enclosure experiment was carried out in Ming Lake of Jinan University from June 23 to August 18, 2009. There were three treatments: enclosures with fish (EF), enclosures with fish with plastic nets above sediments (EFN) and enclosures without fish as controls (EFL). Results showed that common carp significantly increased suspended solids, total nitrogen, total phosphorus and chlorophyll a concentrations, but reduced transparency. However, the difference in suspended solids, total nitrogen, total phosphorus and chlorophyll a between EF and EFN was not significant. Present study indicates that there are no significant effects of sediment disturbance on water quality, and the effects of common carps on water quality are likely due to nutrient excretion.
岳儒焱, 杨凯, 张修峰, 刘正文*. 鲤对浅水湖泊水质影响的围隔实验研究[J]. , 2013, 32(2): 171-176.
YUE Ru-yan, YANG Kai, ZHANG Xiu-feng, LIU Zheng-wen*. Effects of common carp on the water quality of shallow lakes：an enclosure experiment. , 2013, 32(2): 171-176.
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