中国渔业质量与标准2023，Vol.13Issue(6)：11-18,8.DOI:10.3969/j.issn.2095-1833.2023.06.002
养殖尾水对河流沉积物中微生物多样性的影响
The effect of aquaculture tail water on microbial diversity in river sediments
摘要
Abstract
Industrialized aquaculture of seafood is the main global protein supply.But tail water discharge is the source of pollution in coastal waters,which the reuse research is insufficient.Therefore,in this study,in-situ sampling and high-throughput detection were used to analyze the sediment in the Yongfeng River and the drainage canal in Yellow River Delta,exploring the potential in-situ biological technique.The results showed that the dominant bacteria in the upper reaches of Yongfeng River were consistent with those in the discharge area,mainly Gillisia(25.44%-60.35%)and Psychrobacter(4.26%-7.36%).Meanwhile Psychrobacter(23.27%-56.73%)and Proteiniclasticum(16.24%-39.58%)were the main components in the sediments of the downstream and the estuary.Principal Coordinate Analysis(PCoA)revealed some differences in bacterial communities between the Yongfeng River and the drainage channel sedi-ment.And metabolic analysis indicated that a considerable amount of organic matter in the drainage channel was affect-ed by aquaculture tailwater,leading to an increase in specific degradation.It was found that maintaining osmolality might be crucial for the growth of bacteria in costal sediment.In terms of archaea,the upstream sediments were mainly Candidatus Nitrocosmicus(7.14%-22.98%)and Methanosaeta(13.08%-25.69%),while the main in pollution sources were Marine Group II(39.38%).Nitrososphaeraceae(32.70%-78.17%)and Methanogenium(2.19%-11.24%)were the dominant species in the downstream and estuary sediments.Through PCoA analysis,it was found that there is some similarity in the archaeal communities between the samples.Metabolic analysis revealed that archaea has better adapted to seawater osmotic pressure.Archaea are also more susceptible to organic matter input,which the archaea may participate in the terminal degradation process of aromatic metabolism.The results reveal that the aquacul-ture effluent has a high potential for methanogens,but its diverse organic carbon requires a variety of degrading bacteria to participate in improving efficiency.[Chinese Fishery Quality and Standards,2023,13(6):11-18]关键词
养殖尾水/高通量检测/细菌多样性/古菌多样性Key words
breeding tail water/high throughput detection/bacterial diversity/archaeal diversity分类
水产学引用本文复制引用
单玉玲,陈聪聪,程飞,史璐琳,王炳臣..养殖尾水对河流沉积物中微生物多样性的影响[J].中国渔业质量与标准,2023,13(6):11-18,8.基金项目
东营市海岸带典型护花米草区域沉降环境调查(WBC202210) （WBC202210）
