文章基本信息

标题：Chronic ecotoxicity of ciprofloxacin exposure on taxonomic diversity of a meiobenthic nematode community in microcosm experiments
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作者：Ahmed Nasri ; Amel Hannachi ; Mohamed Allouche 等
期刊名称：Journal of King Saud University - Science
印刷版ISSN：1018-3647
出版年度：2020
卷号：32
期号：2
页码：1470-1475
DOI：10.1016/j.jksus.2019.11.044
语种：English
出版社：Elsevier
摘要：AbstractA laboratory bioassay was performed to assess the ecotoxicity of ciprofloxacin on a meiobenthic nematodes community from Bizerte lagoon (NE Tunisia). Four ciprofloxacin doses [D1 (50 µg/g), D2 (100 µg/g), D3 (200 µg/g), and D4 (500 µg/g)] were applied to the substrate, and responses were studied after one month. Discernible differences were observed between control assemblages and those populating ciprofloxacin treated substrates. All univariate indices were affected significantly compared to those in the control microcosm with increasing antibiotic concentration. The non-parametric Multi-Dimensional Scaling based on species abundances (MDS) showed significant separation of the control microcosm from the antibiotic-treated populations. The nematode species responses to the fluoroquinolone treatments varied:Odontophora villotiwas reduced at all concentrations of ciprofloxacin and was considered “sensitive,” whereasMetoncholaimus pristiuruswas affected by moderate concentrations; its abundance increased with the highest dose D4 and was described as “opportunistic.”Paramonohystera pilosa, whose abundance increased with antibiotic doses appeared “resistant.”
关键词：Meiobenthic nematodes;Susbstrate;Antibiotic;Ciprofloxacin;Exposure;Bioassay