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The Gill-Associated Bacterial Community Is More Affected by Exogenous Chlorella pyrenoidosa Addition than the Bacterial Communities of Water and Fish Gut in GIFT Tilapia (Oreochromis niloticus) Aquaculture System

文献类型: 外文期刊

作者: Meng, Shunlong 1 ; Xu, Huimin 1 ; Qin, Lu 2 ; Chen, Xi 1 ; Qiu, Liping 1 ; Li, Dandan 1 ; Song, Chao 1 ; Fan, Limin 1 ; Hu, Gengdong 1 ; Xu, Pao 1 ;

作者机构: 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Sci Observing & Expt Stn Fishery Resources & Envir, Wuxi 214081, Peoples R China

2.Nanjing Agr Univ, Wuxi Fishery Coll, Wuxi 214081, Peoples R China

关键词: tilapia aquaculture; Chlorella pyrenoidosa addition; different microhabitats; bacterial communities; community characteristics

期刊名称:BIOLOGY-BASEL ( 影响因子:4.2; 五年影响因子:4.4 )

ISSN:

年卷期: 2023 年 12 卷 9 期

页码:

收录情况: SCI

摘要: Microalgae has been widely used in aquaculture to improve both the water environment and fish growth; however, the current understanding of the effects of microalgae addition on the key players involved in regulating the water environment and fish health, such as microorganisms, remains limited. Here, a 50-day mesocosm experiment was set up to simulate the culture of Genetic Improvement of Farmed Tilapia (GIFT, Oreochromis niloticus) with an average weight of 14.18 +/- 0.93 g and an average length of 82.77 +/- 2.80 mm. Different amounts of Chlorella pyrenoidosa were added into these artificial systems to investigate dynamics of bacterial communities in aquaculture water, fish gill, and gut using amplicon-based high-throughput sequencing technology. Our results showed that Chlorella pyrenoidosa addition increased diversity and network complexity of gill-associated bacterial communities rather than those of the water and gut. Furthermore, more biomarkers in the gill-associated bacterial communities were detected in response to Chlorella pyrenoidosa addition than the water and fish gut samples. These findings highlighted the high sensitivity of gill-associated bacterial communities in response to the Chlorella pyrenoidosa addition, implying Chlorella pyrenoidosa addition could play important roles in regulating the fish mucosal immunity by altering the gill-associated microbiota.

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