Abstract：
To evaluate the effects of nitrofurazone on functional processes in marine ecosystems, periphytic protozoan communities were exposed to different concentrations of the antibiotic for a 10-day duration. Species trait distributions in the tested communities were observed during exposure to five concentrations of nitrofurazone. A fuzzy coding system with seven traits and seventeen categories was used to summarize the changes in functional patterns of the test organisms. Nitrofurazone had a significant influence on the function process of the periphytic ciliate communities. Bacterivores with flattened bodies were sensitive to the toxicant whereas sessile and cylindrical raptors showed a high tolerance to nitrofurazone, invariably dominating communities exposed to high concentrations. Bootstrapped-average analysis demonstrated a significant change in functional patterns at highest nitrofurazone concentrations (8 mg l-1). Based on these findings, it is suggested that nitrofurazone may negatively influence ecosystem function in marine environments.
摘要：
为了评估呋喃西林对海洋生态系统功能过程的影响，外周原生动物群落暴露于不同浓度的抗生素10天。在暴露于五种浓度的硝基呋喃酮期间，观察到了测试群落中的物种性状分布。使用具有七个性状和十七个类别的模糊编码系统来总结测试生物功能模式的变化。硝基呋喃酮对外围纤毛虫群落的功能过程有重要影响。身体扁平的细菌对毒物敏感，而无柄和圆柱形猛禽对硝基呋喃酮表现出很高的耐受性，总是占主导地位的社区暴露于高浓度。自举平均分析表明，在最高的硝基呋喃酮浓度（8mgl-1）下，功能模式发生了显着变化。基于这些发现,建议呋喃西林可能对海洋环境中的生态系统功能产生负面影响。
