MICROBIAL COMMUNITY STRUCTURE AND ITS DRIVING FACTORS IN THE WHITELEG SHRIMP ( LITOPENAEUS VANNAMEI) AQUACULTURE SYSTEM

文献类型： 外文期刊

第一作者： Qiao, L.

作者： Qiao, L.;Bao, J. J.;Li, T. J.;Sun, X. M.;Ze, W. G.;Li, J.

作者机构：

关键词： aquaculture; shrimp; bacterial community; high-throughput sequencing; seawater

期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.6； 五年影响因子：0.8 ）

ISSN： 1589-1623

年卷期： 2025 年 23 卷 1 期

页码：

收录情况： SCI

摘要： Microbial community is a vital component of aquaculture. In this study, microbial community structure and function in whiteleg shrimp ( Litopenaeus vannamei) aquaculture were examined through 16S rRNA gene high-throughput sequencing. Proteobacteria, Bacteroidota and Actinobacteriota were observed as the dominant microbial phyla during whiteleg shrimp aquaculture at an industrial scale. With time, the relative abundance of Proteobacteria initially increased and then showed a declining trend. On the contrary, relative abundance of Bacteroidota and Actinobacteriota initially decreased and then increased in the flowing water samples. However, in aquaculture water samples, these dominant bacterial phyla showed an opposite trend. Compared to flowing water, microbial richness was significantly lower in the aquaculture water samples. Furthermore, PICRUSt2 analysis and Welch's t-test revealed significant variations between the predicted functions of microbial communities in flowing water and aquaculture water samples. In the samples of aquaculture water, carbon metabolism, glycine, serine and threonine metabolism in the microbial community increased significantly, as compared to the flowing waters. Marivita, Candidatus Aquiluna, Donghicola and Polaribacter played important roles in sequestration of carbon and reduction of nitrogen. Redundancy analysis revealed that nitrate-N, nitrite-N, ammonia-N, pH, salinity and temperature were the key factors influencing the microbial communities during the aquaculture of whiteleg shrimp at an industrial scale.

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