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Rapid environmental change shapes pond water microbial community structure and function, affecting mud crab (Scylla paramamosain) survivability

文献类型： 外文期刊

作者： Deng, Yiqin 1 ; Cheng, Changhong 1 ; Feng, Juan 1 ; Liu, Songlin 4 ; Ma, Hongling 1 ; Chen, Xiaolong 1 ; Chen, HaoXian 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Peoples R China

2.Chinese Acad Fisheries Sci, South China Sea Fisheries Res Inst, Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China

3.Chinese Acad Fishery Sci, Trop Aquaculture Res & Dev Ctr, South China Sea Fisheries Res Inst, Sanya 572426, Hainan, Peoples R China

4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Peoples R China

关键词： Microbial community; Environmental factors; Temporal dynamics; Scylla Paramamosain; Open-air culture ponds; Mortality

期刊名称：APPLIED MICROBIOLOGY AND BIOTECHNOLOGY （ 影响因子：4.813； 五年影响因子：4.697 ）

ISSN： 0175-7598

年卷期： 2020 年 104 卷 5 期

页码：

收录情况： SCI

摘要： The aquatic microbial community is sensitive to environmental change; however, the impacts of those changes combined with disease outbreaks affecting S. paramamosain are unknown. Thus, from March to October, we explored the interaction between aquacultural environmental conditions and microbial composition and function in open-air aquaculture ponds containing S. paramamosain in Southern China. The microbial community structure was significantly positively correlated with microbial community function. The environment variables such as temperature and salinity during May and June changed more quickly compared with other periods, resulting changes in the structure and function of the microbial community affected S. paramamosain survivability, with higher crab mortality observed from May to June compared with other periods. These included changes in the relative abundance of Microtrichales, Synechococcales, Rhodobacterales, Chitinophagales, and SAR11_clade, and corresponding functions associated with glycolysis and/or gluconeogenesis, porphyrin and chlorophyll metabolism, photosynthetic proteins, and transcription factors. These changes could impact S. paramamosain mortality and be used to evaluate the health status of the ponds. Though the environment variables during July~October changed slowly comparing to May and June, the ponds microflora changed which benefit S. paramamosain survivability with correspondingly low S. paramamosain mortality. Therefore, rapid environmental change alters the structure and function of the aquatic microflora, increasing S. paramamosain mortality.

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