Nutrient enrichment drives the sediment microbial communities in Chinese mitten crab Eriocheir sinensis culture

Bingchan Jia; Yifan Li; Xinyuan Zi; Xiaohong Gu; Hezhong Yuan; Erik Jeppesen; Qingfei Zeng

doi:10.1016/j.envres.2023.115281

Nutrient enrichment drives the sediment microbial communities in Chinese mitten crab Eriocheir sinensis culture

Environ Res. 2023 Apr 15:223:115281. doi: 10.1016/j.envres.2023.115281. Epub 2023 Jan 11.

Authors

Bingchan Jia¹, Yifan Li², Xinyuan Zi², Xiaohong Gu², Hezhong Yuan³, Erik Jeppesen⁴, Qingfei Zeng⁵

Affiliations

¹ State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control and Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
² State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
³ Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control and Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
⁴ Department of Ecoscience, Aarhus University, C.F. Møllers Allé, 8000, Aarhus, Denmark; Sino-Danish Centre for Education and Research, University of CAS, Beijing, 100190, China; Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, 06800, Turkey; Institute of Marine Sciences, Middle East Technical University, Erdemli-Mersin, 33731, Turkey.
⁵ State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China. Electronic address: 284555693@qq.com.

PMID: 36639014
DOI: 10.1016/j.envres.2023.115281

Abstract

Microbial communities play a critical role in aquaculture ecosystems. To identify the influence of sediment nutrient levels on microbial communities, sediment and water samples were collected from Chinese mitten crab Eriocheir sinensis culture ponds with different nutrient enrichment levels. Relevant physicochemical properties were measured, and 16 S rRNA gene sequencing was applied to identify relevant bacterial communities in the sediments. The results showed that the diversity and composition of microbial communities in sediments with different levels of nutrient enrichment varied considerably. Proteobacteria was the most abundant phylum in all samples, followed by Bacteroidetes, and Desulfobacterota with relative abundances of 23.5-40.9%, 9.8-21.5%, and 9.6-18.1%, respectively. Notably, total nitrogen (TN), organic matter (OM), and pH were important factors driving sediment bacterial community aggregation, the TN concentration explaining 61.5% of the microbial community variation. This study highlights that long-term culture activities alter the degree of sediment nutrient enrichment, which in turn affects microbial community composition and may ultimately have an impact on culture efficiency.

Keywords: Aquaculture; Eriocheir sinensis; Microbial community; Sediment.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Aquaculture
Bacteria* / genetics
Bacteroidetes / genetics
Geologic Sediments
Microbiota*
RNA, Ribosomal, 16S / genetics

Substances

RNA, Ribosomal, 16S