肖鹏飞2,,,
刘毅华3,
尹晓辉1,
朱国念4
1. 浙江农林大学, 杭州 311300;
2. 浙江农林大学暨阳学院, 诸暨 311800;
3. 中国林科院亚热带林业研究所, 富阳 311400;
4. 浙江大学农药与环境毒理研究所, 杭州 310029
作者简介: 孙健(1995-),男,专业硕士研究生,研究方向为农药水生态毒理学,E-mail:876167516@qq.com.
通讯作者: 肖鹏飞,20178003@zafu.edu.cn ;
基金项目: 浙江农林大学暨阳学院科研发展基金资助项目（4251700015）中图分类号: X171.5
Study on the Effect of Triadimefon on Freshwater Zooplankton Community Using Indoor Microcosm System
Sun Jian1,Xiao Pengfei2,,,
Liu Yihua3,
Yin Xiaohui1,
Zhu Guonian4
1. Zhejiang Agriculture and Forestry University, Hangzhou 311300, China;
2. Jiyang College of Zhejiang Agriculture and Forestry University, Zhuji 311800, China;
3. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China;
4. Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310029, China
Corresponding author: Xiao Pengfei,20178003@zafu.edu.cn ;
CLC number: X171.5
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摘要:三唑酮广泛用于水稻田，常在水环境中残留。为研究三唑酮在环境暴露下的生态风险，通过室内标准微宇宙试验系统检验三唑酮对浮游动物的效应。结果表明，在试验初期，三唑酮对部分浮游动物种群表现出抑制作用：对枝角类生物有明显的抑制作用，对桡足类则展现出轻微的抑制作用。8种生物及桡足类无节幼虫对三唑酮的敏感性依次为：盘肠溞>平突船卵溞>隆线溞>萼花臂尾轮虫>低额溞≥锯缘真剑水蚤≥无节幼虫≥单趾轮虫≥中华薄壳介。在整个试验周期内，三唑酮对浮游动物群落的最大无作用剂量（NOECcommunity）>2 078.88 μg·L-1。在水稻种植季节，三唑酮在沟渠水最大残留浓度为12.00 μg·L-1，低于本研究中三唑酮的NOECcommunity。由此可以推测，三唑酮对浮游动物群落的风险很小。
关键词: 三唑酮/
室内微宇宙/
水生浮游动物/
群落效应
Abstract:Triazolone is widely used in rice fields and it often remains in the aquatic environment. In order to study the ecological risks caused by triadimefon exposure, the effect of triadimefon on zooplankton was examined by an indoor standard microcosm test system. The results indicated that triadimefon inhibited several zooplankton populations at the beginning of the experiment, in which Cladocerans was inhibited significantly, and Copepods was slightly inhibited. The sensitive order of eight organisms and larvae of Copepods to triadimefon was as follows: Chydorus sp.>Scapholeberis mucronata>Daphnia carinata>Brachionus calyciflorus>Simocephalus vetulus≥Eucyclops serrulatus≥naupiar larva≥Monostyla sp.≥Dolerocypris sinensis. The no observed effect concentration (NOECcommunity) imposed by traidmefon on the zooplankton community was higher than 2 078.88 μg·L-1. During the rice planting period, the maximum residual concentration of triadimefon was 12.00 μg·L-1 in the water, which is lower than the NOECcommunity of triadimefon in this study. It could be speculated that triadimefon exhibited low risk to zooplankton community.
Key words:triadimefon/
microcosm/
aquatic zooplankton/
community effect.
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