Water microecology is affected by seasons but not sediments: A spatiotemporal dynamics survey of bacterial community composition in Lake Changshou—The largest artificial lake in southwest China. (January 2023)

• Record Type: Journal Article
• Authors: Chen, Ai-ling; Xu, Fu-qing; Su, Xia; Zhang, Fu-pan; Tian, Wan-chao; Chen, Shang-jie; Gou, Fang; Xing, Zhi-lin; Xiang, Jin-xin; Li, Juan; Zhao, Tian-tao
• Is Part Of: Marine pollution bulletin. Volume 186(2023)
• Publication Date: 2023-01
• Subjects: Changshou Lake -- Microecology -- Sediment -- Temporal and spatial variation -- Ecological network relationship; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2022.114459
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: This study aimed to evaluate the correlation between microecology of sediments and water as well as their spatial-temporal variations in Changshou Lake. The results demonstrated that microecology in the lake exhibits spatiotemporal heterogeneity, and microbial diversity of sediments was significantly higher than that of water body. Further, it was found that there was statistically insignificant positive correlation between microecology of sediments and that of water body. PCoA and community structure analysis revealed that the predominant phyla which exhibited significant spatial differences in sediments were Proteobacteria, Actinobacteria and Planctomycetes. While, the distribution of dominant bacteria Actinobacteria and Verrucomicrobia in water body showed significant seasonal differences. Microbial networks analysis indicated that there was a cooperative symbiotic relationship between lake microbial communities. Notably, the same bacterial genus had no significant positive correlation in sediment and water, which suggested that bacteria transport between sediment-water interface does not influence the microecological functions of lake water. Graphical abstract: Unlabelled Image Highlights: Spatiotemporal dynamic change of microecology in Changshou Lake was for the first time revealed. Microecosystem of sediments is closely linked to regional environment but almost not with seasons. Microecosystem of water exhibits seasonal heterogeneity, which are significantly affected by DO. Sediment microecology has little effect on microbial community structure and function of water.