Occurrence of antibiotics and their impacts to primary productivity in fishponds around Tai Lake, China
文献类型： 外文期刊
作者： Song, Chao 1 ; Zhang, Cong 1 ; Fan, Limin 1 ; Qiu, Liping 1 ; Wu, Wei 1 ; Meng, Shunlong 1 ; Hu, Gengdong 1 ; Kamira, Bar 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Beijing, Peoples R China
2.Minist Agr, Lab Qual & Safety Risk Assessment Aquat Prod Envi, Beijing, Peoples R China
3.Chinese Acad Fishery Sci, Key Open Lab Ecol Environm & Resources Inland Fis, Beijing, Peoples R China
4.Nanjing Agr Univ, Wuxi Fisheries Coll, Nanjing, Jiangsu, Peoples R China
关键词： Antibiotics; Detection frequency; Risk assessment; Algae; Fishpond
期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）
ISSN： 0045-6535
年卷期： 2016 年 161 卷
页码：
收录情况： SCI
摘要： Antibiotics are widely used to improve the health and yields of farmed animals, including fish, but their use is accompanied by undesirable ecological effects. Relatively little is known about the water-body burden of antibiotics and their influence on primary productivity in aquaculture ecosystem. In this study, antibiotics usage within 24 fishponds, covering 4 areas, sampled 5 times, and having 5 fish species, was investigated surrounding Tai Lake in China. The study analyzed 15 antibiotics (including 5 sulfonamides, 2 quinolones, 3 (beta-lactams, 3 tetracyclines, 1 amphenicol, and 1 macrolide), and all of them were detected in water samples, with a detection frequency of 2-60%. Sulfonamides were the most prevalent, and concentrations of sulfamethoxazole, sulfamonomethoxine, and florfenicol being over 2000 ng L-1 in some samples, while the other antibiotics levels ranged from ND (no detection) to 551.18 ng L-1. Significant differences were observed in antibiotic burden among different regions for total antibiotics, sulfonamides, quinolones, and amphenicols; among time points for quinolones, beta-lactams, and tetracyclines; and among species for quinolones and macrolides. Furthermore, basing on the risk quotient (RQ) method, the assessment revealed that florfenicol was of highest risk to algae with RQ values exceeding 0.1, while macrolide erythromycin posed the second highest risk. The partial correlation coefficient between total antibiotics and chlorophyll (a) was -0.035 that clearly indicated total antibiotics were detrimental to green algae growth, while the nutrient input and other physical - chemical factors
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