...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Archives of Environmental Contamination and Toxicology >Acute and Chronic Effects of Particle-Associated Fenvalerate on Stream Macroinvertebrates: A Runoff Simulation Study Using Outdoor Microcosms
【24h】

Acute and Chronic Effects of Particle-Associated Fenvalerate on Stream Macroinvertebrates: A Runoff Simulation Study Using Outdoor Microcosms

机译：颗粒状氰戊酸酯对河流大型无脊椎动物的急性和慢性影响：使用室外微观模型的径流模拟研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Agricultural edge-of-field runoff usually contaminates surface waters with particle-associated pesticides. However, the acute and chronic effects on the aquatic macroinvertebrate communities have rarely been addressed. Outdoor flow-through stream microcosms were exposed for 1 h in triplicate to approximately 3.1 g/L of total suspended solids spiked with 0.0, 13.6, 136, or 1,365 μg/kg of the pyrethroid insecticide fenvalerate (FV). The effects on eight species typical of agricultural streams were monitored for 93 days. Gammarus pulex (Amphipoda) and Hydropsyche angustipennis (Trichoptera) showed a sensitive acute drift reaction with increased drift levels in all FV treatments (p < 0.05). The caddisfly species Anabolia nervosa, Plectrocnemia conspersa, and Limnephilus lunatus as well as the dipteran species Tipula maxima were less sensitive, with a significant increase in drift in the 136- and 1,365-μg/kg treatments. Temporal pattern of emergence was significantly altered in the 1,365-μg/kg treatment for A. nervosa (p < 0.05). The most sensitive species in terms of total emergence or survival were L. lunatus, which showed a significant effect in the 136- and 1,365-μg/kg treatment, as well as adult and juvenile G. pulex and T. maxima, with a significant effect level in the 1,365-μg/kg treatment (p < 0.05). Total emergence or survival of A. nervosa, P. conspersa, and H. angustipennis decreased with increasing exposure level, but differences from the control were not significant. Neither acute drift nor chronic mortality was observed for Helodes minuta (Coleoptera) and Radix peregra (Gastropoda). This study highlights the ecotoxicological importance and bioavailability of field-relevant levels of particle-associated hydrophobic chemicals transiently introduced into surface waters during runoff events.
机译：农业领域的地表径流通常会被颗粒相关的农药污染地表水。但是，对水生大型无脊椎动物群落的急性和慢性影响很少得到解决。将室外流通物流缩影一式三份地暴露于加有0.0、13.6、136或1,365μg/ kg拟除虫菊酯杀虫剂氰戊菊酯（FV）的约3.1 g / L的总悬浮固体中。监测了93天对典型农业流的8种物种的影响。 Gammarus pulex（Amphipoda）和Hydropsyche angustipennis（Trichoptera）在所有FV处理中均表现出敏感的急性漂移反应，且漂移水平增加（p <0.05）。鳞翅目种类的Anabolia nervosa，Plectrocnemia conspersa和Limnephilus lunatus以及Ditteran物种Tipula maxima的敏感性较低，在136和1,365-μg/ kg处理中漂移显着增加。在1,365-μg/ kg的神经假单胞菌处理中，出苗的时间模式发生了显着变化（p <0.05）。就总的出现或存活而言，最敏感的物种是L. lunatus，在136和1,365-μg/ kg的处理中显示出显著作用，以及成年和幼年的G. pulex和T. maxima表现出显着的影响。 1,365-μg/ kg治疗中的有效水平（p <0.05）。随着暴露水平的提高，神经假单胞菌，体育假单胞菌和安氏嗜血杆菌的总出现或存活率降低，但与对照的差异并不显着。 Helodes minuta（Coleoptera）和Radix peregra（Gastropoda）均未观察到急性漂移或慢性死亡。这项研究突出了径流过程中瞬时引入地表水中与颗粒相关的疏水性化学物质与田间相关水平的生态毒理学重要性和生物利用度。

著录项

  • 来源
  • 作者

    R. Schulz; M. Liess;

  • 作者单位

    Zoological Institute Technical University Fasanenstrasse 3 D-38092 Braunschweig Germany;

    Zoological Institute Technical University Fasanenstrasse 3 D-38092 Braunschweig Germany;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号