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Community assembly patterns and processes of bacteria in a field-scale aquaculture wastewater treatment system

文献类型： 外文期刊

作者： Niu, Shuhui 1 ; Xie, Jun 1 ; Wang, Guangjun 1 ; Li, Zhifei 1 ; Zhang, Kai 1 ; Li, Hongyan 1 ; Xia, Yun 1 ; Tian, Jingjing 1 ; Yu, Ermeng 1 ; Xie, Wenping 1 ; Gong, Wangbao 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Key Lab Trop & Subtrop Fishery Resource Applicat &, Minist Agr, Guangzhou 510380, Guangdong, Peoples R China

2.Guangdong Ecol Remediat Aquaculture Pollut Res Ctr, Guangzhou 510380, Guangdong, Peoples R China

3.Chinese Acad Fishery Sci, Hainan Fisheries Innovat Res Inst, Sanya 572000, Hainan, Peoples R China

4.1 Xingyu Rd,Dongjiao St, Guangzhou 510380, Guangdong, Peoples R China

关键词： Field -scale aquaculture wastewater treatment system; Microbial diversity; Stochastic processes; Network complexity

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）

ISSN： 0048-9697

年卷期： 2024 年 907 卷

页码：

收录情况： SCI

摘要： Microbial communities are responsible for the biological treatment of wastewater, however, our comprehension of their diversity, assembly patterns, and functions remains limited. In this study, we analyzed bacterial com-munities in both water and sediment samples. These samples were gathered from a novel field-scale aquaculture wastewater treatment system (FAWTS), which employs a multi-stage purification process to eliminate nutrients from pond culture wastewater. Significant variations were observed in bacterial diversity and composition across various ponds within the system and at different stages of the culture. Notably, the bacterial community in the FAWTS displayed a distinct species abundance distribution. The influence of dispersal-driven processes on shaping FAWTS communities was found to be relatively weak. The utilization of neutral and null models un-veiled that the assembly of microbial communities was primarily governed by stochastic processes. Moreover, environmental factors variables such as total nitrogen (TN), dissolved oxygen (DO), and temperature were found to be associated with both the composition and assembly of bacterial communities, influencing the relative significance of stochastic processes. Furthermore, we discovered a close relationship between that bacterial community composition and system functionality. These findings hold significant implications for microbial ecologists and environmental engineers, as they can collaboratively refine operational strategies while preserving biodiversity. This, in turn, promotes the stability and efficiency of the FAWTS. In summary, our study contributes to an enhanced mechanistic understanding of microbial community diversity, assembly patterns, and func-tionality within the FAWTS, offering valuable insights into both microbial ecology and wastewater treatment processes.

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