Abundance and removal of antibiotic resistance genes (ARGs) in the rearing environments of intensive shrimp aquaculture in South China
Abundance and removal of antibiotic resistance genes (ARGs) in the rearing environments of intensive shrimp aquaculture in South China
复制标题
华南集约化对虾养殖环境中抗生素抗性基因（ARG）的丰度和去除
DOI：
10.1080/03601234.2018.1550310
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发表时间：
2019-02
期刊：
影响因子：
--
通讯作者：
Guoliang Wen
中科院分区：
文献类型：
--
作者：
Linglong Wang;Haochang Su;Xiaojuan Hu;Yu Xu;Wujie Xu;Xiaoshuai Huang;Zhuojia Li;Yucheng Cao;Guoliang Wen
摘要 尽管关于水产养殖环境中抗生素抗性基因（ARG）的研究引起了越来越多的科学兴趣，但仍需要进一步的研究来了解对虾养殖整个饲养期间ARG的丰度和去除机制。因此，本研究对华南集约化对虾养殖场不同环境区划在整个养殖过程中的ARGs丰度、分布和去除率进行了调查。结果表明，sul1 和 cmlA 是水和沉积物样品中的主要 ARG。此外，虾池水中的 ARGs 总丰度高于水源水和养殖场废水。此外，沉积物样品显示 ARG 丰度显着高于虾池水样（P<0.05）。研究发现环境因素显着影响虾养殖环境中 ARG 的分布。此外，稳定的池塘有助于去除虾池水中的 ARG。这项研究解释了 ARG 丰度的时间变化以及整个对虾饲养期间不同环境分区中 ARG 的去除情况。然而，还需要进行更多研究来优化水处理工艺，以去除水产养殖中的抗微生物药物。
Abstract Although research regarding antibiotic resistance genes (ARGs) in aquaculture environments has gained increasing scientific interest, further studies are required to understand the abundances and removal mechanisms of ARGs during the entire rearing period of shrimp aquaculture. Thus, in this study, abundances, distributions and removal rates of ARGs in different environmental compartments of intensive shrimp farms in South China were investigated during the entire rearing period. The results indicated that sul1 and cmlA were the predominant ARGs in the water and sediment samples. Additionally, the total abundance of ARGs was higher in shrimp pond water than in the source water and farm effluent. Moreover, sediment samples indicated significantly higher ARG abundances than water samples from the shrimp ponds (P < 0.05). Environmental factors were found to significantly affect the distribution of ARGs in shrimp rearing environments. Furthermore, stable ponds aided the removal of ARGs from shrimp pond water. This study accounted for temporal variations in ARG abundances as well as removal of ARGs in different environmental compartments during the entire shrimp rearing period. However, additional research is required to optimize the water treatment process for removal of ARGs from the aquaculture.
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