阿特拉津和噻吩磺隆对三种纤毛虫种群生长的影响  

Effects of atrazine and thifensulfuron on the population dynamics of Euplotes vannus,Uronema marinum and Pseudokeronopsis carnea

作　　者：李雪菡 吕湘琳 郑晓楠 石雪 齐红莉 Li Xuehan;Lü Xianglin;Zheng Xiaonan;Shi Xue;Qi Hongli(Tianjin Key Laboratory of Aqua-Ecology and Aquaculture,College of Fisheries,Tianjin Agricultural University,Tianjin 300392,China)

机构地区：[1]天津农学院水产学院,天津市水产生态及养殖重点实验室,天津300392

出　　处：《天津农学院学报》2021年第4期47-52,77,共7页Journal of Tianjin Agricultural University

基　　金：天津市自然科学基金项目(17JCYBJC298000,15JCYBJC23900);天津市高等学校创新团队培养计划项目(TD13-5089);中国海洋大学海水养殖教育部重点实验室开放课题(KLM2018003)。

摘　　要：利用实验生态学方法探究三种自由生纤毛虫:扇形游仆虫(Euplotes vannus)、海洋尾丝虫(Uronema marinum)和肉色伪角毛虫(Pseudokerono psiscarnea),在不同浓度阿特拉津(atrazine)和噻吩磺隆(thifensulfuron)药物作用下的种群动力学规律。探讨不同浓度下两种药物对扇形游仆虫、海洋尾丝虫、肉色伪角毛虫种群密度、种群生长率和世代时间的影响。结果表明,在阿特拉津作用浓度为6 mg/L、噻吩磺隆作用浓度为6 mg/L时,扇形游仆虫种群密度峰值较其他试验组大。各浓度试验组扇形游仆虫种群生长率和世代时间间存在差异。在阿特拉津作用浓度为6.5 mg/L、噻吩磺隆作用浓度为6.5 mg/L时,海洋尾丝虫种群生长明显受到抑制。各浓度试验组海洋尾丝虫种群生长率和世代时间差异较大。在阿特拉津作用浓度为6.5 mg/L、噻吩磺隆作用浓度为7.5 mg/L时,肉色伪角毛虫种群生长受到明显抑制。各浓度试验组肉色伪角毛虫种群生长率和世代时间差异明显。The purpose of this paper is to investigate the effects of different atrazine and thifensulfuron on the population dynamics of Euplotes vannus,Uronema marinum and Pseudokerono psiscarnea by calculating the population density,growth rate and generation time of Euplotes vannus,Uronema marinum and Pseudokerono psiscarnea.The results showed that the atrazine and thifensulfuron to Euplotes vannus concentration of 6 mg/L,the maximum population density was higher than other experimental groups.There were differences in population growth rate and generation time for each concentration of Euplotes vannus.The atrazine and thifensulfuron to Uronema marinum concentration of 6.5 mg/L,the population growth was obviously inhibited.The population growth rate and generation time of Uronema marinum at different concentrations were quite different.Atrazine to Pseudokeronopsis carnea concentration of 6.5 mg/L and thifensulfuron to Pseudokerono psiscarnea concentration of 7.5 mg/L,the population growth was obviously inhibited.The population growth rate and generation time of Pseudokerono psiscarnea at each concentration were significantly different.

关 键 词：阿特拉津 噻吩磺隆 扇形游仆虫 海洋尾丝虫 肉色伪角毛虫 种群生长 

分 类 号：Q958[生物学—动物学]