Assessment on Fish Diversity and Aquatic Ecosystem Health in the Diannong River Basin of Yinchuan
The Diannong River,one of the primary freshwater ecosystems in Yinchuan City,is intricately related with the high quality devel-opment of the study area.In September 2022,a comprehensive field sampling survey was conducted in the Diannong River basin,encompass-ing a total of 40 sampling sites.Through the collection of fish specimens and assessment on water environmental factors,an analysis was con-ducted to assess the structural dynamics and functional diversity of fish community in the Diannong River basin.In addition,the health of aquatic ecosystem in the Diannong River basin was quantitatively assessed by using the Biological Integrity Index methodology.The results in-dicate that the primary environmental factor affecting the fish community structure in the Diannong River basin is total nitrogen.Significant differences are observed in the species number,community species diversity,and functional diversity of fish between Diannong River,Yue-hai,Baohu Lake,and Hequan Lake.The aquatic ecosystem health of Yuehai is superior to that of Diannong River,Baohu Lake,and Hequan Lake.Diannong River and Hequan Lake both exhibit a good level of water quality,while Baohu Lake is at a moderate level.
fishbiodiversityaquatic ecosystemhealth assessmentDiannong River
国家科技期刊平台
NSTL
万方数据
