Study on Regulating Effects of ＂Aquatic Environment Protection Oriented Fishery＂ on Water Environment of Qiaodun Reservoir

In order to evaluate the regulating effect of ＂ aquatic environment protection oriented fishery＂ on aquatic ecosystem,the water quality,plankton community structure,biomass,diversity index,eutrophication index and ecosystem maturity evaluated with Ecopath model were compared from 2010 to 2012 in Qia...

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Published inMeteorological and environmental research Vol. 5; no. 9; pp. 47 - 52
Main Authors Julin, Yuan, Zhimin, Gu, Yuanjie, Yang, Jianmei, Xin, Jindian, Liu
Format Journal Article
LanguageEnglish
Published Cranston Wu Chu (USA-China) Science and Culture Media Corporation 01.09.2014
Subjects
Algae
Aquaculture
Biomass
Drinking water
Ecosystems
Eutrophication
Fisheries
Fishing
Freshwater resources
Plankton
Quantitative analysis
Water area
Water quality
护面
水库
水环境保护
水环境调控
水生生态系统
浮游植物群落
渔业
生物群落结构
China
Qiandao Lake
China, People's Rep., Zhejiang Prov
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Summary:In order to evaluate the regulating effect of ＂ aquatic environment protection oriented fishery＂ on aquatic ecosystem,the water quality,plankton community structure,biomass,diversity index,eutrophication index and ecosystem maturity evaluated with Ecopath model were compared from 2010 to 2012 in Qiaodun Reservoir of Zhejiang Province. It was indicated that the water quality had been improved obviously. The water transparency maximally increased by 130%,while TP,TN and CODCrwere reduced. The density and biomass of the plankton were decreased,so was the ratio of Cynobacteria in phytoplankton community. The Shannon-Weaver index was increased; the trophic level was decreased; the ecosystem maturity was improved. By all accounts,the ＂ aquatic environment protection oriented fishery＂ had positive effects on maintaining the balance of reservoir ecosystem and ensuring the safety of drinking water.
Bibliography:Aaquatic environment protection oriented fishery＂ Water quality Plankton community Ecosystem maturity Ecopath model China
In order to evaluate the regulating effect of ＂ aquatic environment protection oriented fishery＂ on aquatic ecosystem,the water quality,plankton community structure,biomass,diversity index,eutrophication index and ecosystem maturity evaluated with Ecopath model were compared from 2010 to 2012 in Qiaodun Reservoir of Zhejiang Province. It was indicated that the water quality had been improved obviously. The water transparency maximally increased by 130%,while TP,TN and CODCrwere reduced. The density and biomass of the plankton were decreased,so was the ratio of Cynobacteria in phytoplankton community. The Shannon-Weaver index was increased; the trophic level was decreased; the ecosystem maturity was improved. By all accounts,the ＂ aquatic environment protection oriented fishery＂ had positive effects on maintaining the balance of reservoir ecosystem and ensuring the safety of drinking water.
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ISSN:2152-3940