Spatial and seasonal variations of antibiotics and antibiotic resistance genes and ecological risks in the coral reef regions adjacent to two typical islands in South China Sea
文献类型： 外文期刊
作者： Liu, Shan 3 ; Su, Haochang 1 ; Pan, Yun-Feng 3 ; Xu, Xiang-Rong 3 ;
作者机构： 1.Minist Agr & Rural Affairs, Key Lab South China Sea Fishery Resources Exploit, Beijing, Peoples R China
2.Chinese Acad Fishery Sci, Guangdong Prov Key Lab Fishery Ecol & Environm, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
3.Chinese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol,Guangdong, Guangzhou 510301, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词： Antibiotics; Antibiotic resistance genes; Spatial and seasonal variations; Anthropogenic activities; Coral reef
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）
ISSN： 0025-326X
年卷期： 2020 年 158 卷
页码：
收录情况： SCI
摘要： Although the occurrence of antibiotics and antibiotic resistance genes (ARGs) in aquatic environmental has been widely reported, the distribution and variations of these emerging contaminants in the coral reef regions remain unclear. This study investigated the occurrence of these contaminants, and their spatial and seasonal variations in both coral reef regions and non-coral reef regions adjacent to two typical islands in the South China Sea. Eighteen antibiotics and seven ARGs were detected in the surface water with total concentrations ranging from 43.2 to 441 ng/L, and 2.11 x 10(4) to 8.00 x 10(6) copies/L, respectively. Erythromycin-H2O was the most dominant antibiotic in all samples. QnrD was dominant in the dry season, whereas sul1, sul2, and floR were the most abundant in the wet season, indicating obvious seasonal variations. The distribution of ARGs was mainly influenced by changes in salinity caused by anthropogenic activities in wet season.
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