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鲍方剑, 黄雷, 陈伟, 王思鹏, 陈琛, 黄晓林, 张德民, 张化俊. 蔗糖输入对凡纳滨对虾养殖系统真核微生物群落的影响[J]. 水生生物学报, 2021, 45(1): 172-181. DOI: 10.7541/2021.2019.142
引用本文: 鲍方剑, 黄雷, 陈伟, 王思鹏, 陈琛, 黄晓林, 张德民, 张化俊. 蔗糖输入对凡纳滨对虾养殖系统真核微生物群落的影响[J]. 水生生物学报, 2021, 45(1): 172-181. DOI: 10.7541/2021.2019.142
BAO Fang-Jian, HUANG Lei, CHEN Wei, WANG Si-Peng, CHEN Chen, HUANG Xiao-Lin, ZHANG De-Min, ZHANG Hua-Jun. THE EFFECTS OF SUCROSE ON MICROEUKARYOTIC COMMUNITY IN THE SHRIMP AQUACULTURE SYSTEM[J]. ACTA HYDROBIOLOGICA SINICA, 2021, 45(1): 172-181. DOI: 10.7541/2021.2019.142
Citation: BAO Fang-Jian, HUANG Lei, CHEN Wei, WANG Si-Peng, CHEN Chen, HUANG Xiao-Lin, ZHANG De-Min, ZHANG Hua-Jun. THE EFFECTS OF SUCROSE ON MICROEUKARYOTIC COMMUNITY IN THE SHRIMP AQUACULTURE SYSTEM[J]. ACTA HYDROBIOLOGICA SINICA, 2021, 45(1): 172-181. DOI: 10.7541/2021.2019.142

蔗糖输入对凡纳滨对虾养殖系统真核微生物群落的影响

THE EFFECTS OF SUCROSE ON MICROEUKARYOTIC COMMUNITY IN THE SHRIMP AQUACULTURE SYSTEM

  • 摘要: 利用18S rRNA基因高通量测序, 研究蔗糖输入条件下凡纳滨对虾(Litopenaeus vannamei)养殖系统中水体与絮团的真核微生物群落组成及其相互作用关系。结果表明, 输入蔗糖能显著改变对虾养殖系统中真核微生物群落组成, 促进水体中纤毛虫和轮虫的生长, 对水体绿藻的过度生长有一定抑制作用。Mantel分析发现, 在第28天时, 蔗糖添加以及系统中的溶解氧、亚硝酸盐和磷酸盐对真核微生物群落结构变异有显著影响。利用共线性网络分析表明碳氮比的增加可以增强水体和絮团中不等鞭毛类、纤毛虫和轮虫的相互作用, 对养殖体系中藻类的过度繁殖具有一定的抑制作用。研究揭示了在蔗糖输入条件下凡纳滨对虾养殖系统中真核微生物群落的演替规律及絮团和水体微生物相互作用特征, 为生物絮团技术持续稳定的应用于对虾养殖系统提供理论支持。

     

    Abstract: Carbon source is an important factor influencing bioflocs formation and microbial community composition in Penaeus vannamei aquaculture system, and it is important to elucidate the response of microeukaryotic community in both aquaculture water and bioflocs. Here, we used 18S rRNA gene amplicon sequencing to investigate the microeukaryotic community compositions (MECs) and the interaction of microeukaryotes in water and bioflocs under sucrose input condition. We found that sucrose input significantly affect the MECs, especially in the abundance of Ciliophora, Rotifera and Chlorophyta. After 28 days in culture, microeukaryotic community structure was mainly driven by sucrose, dissolved oxygen, nitrite and phosphate. Co-occurrance network analysis showed that sucrose input can enhance the interaction between Heterokonta, Ciliophora and Rotifer, which is benificial for inhibiting the excessive growth of algae. Briefly, these results revealed the successional patterns and interaction of microeukaryotes in aquaculture water and bioflocs, which may provide new insights into the application of bioflocs technology in shrimp culture.

     

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