ZHOUJia-ying,GENGShi-wei,ZHENGBo-yang,et al.Analysis of Aquatic Biological Community Composition in Rivers and Lakes Based on eDNA Technology[J].China Water & Wastewater,2022,38(11):91-97.
Analysis of Aquatic Biological Community Composition in Rivers and Lakes Based on eDNA Technology
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第11期
Page:
91-97
Column:
Date of publication:
2022-06-01
- Keywords:
- aquatic ecosystem; eDNA; community composition; biodiversity; Tianjin
- Abstract:
- The eDNA technology was applied to analyze the aquatic biological community composition and influencing factors in nine rivers and lakes in Tianjin. The dominant prokaryotes were Cyanophyta, Actinobacteria, Proteobacteria and Bacteroidetes, and the dominant eukaryotes were Ochrophyta, Ciliophora and Cercozoa. The problem of cyanobacteria bloom was the most serious in rivers outsides the city, and the prokaryotic biodiversity was significantly lower than that of other water bodies. The water quality of urban landscape water was better, and the eukaryotic biodiversity was significantly higher than that of other water bodies. Geographical location, salinity and chemical pollution were the main environmental factors affecting the biological community composition of water bodies. The community composition of prokaryotes in the same type of water bodies was similar to each other. Salinity and water quality were the most important factors affecting the aquatic biological community composition. eDNA technology has the characteristics of high efficiency and high species coverage, which can be used for large-scale biological monitoring.
Last Update:
2022-06-01