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首页> 外文期刊>Marine and Freshwater Behaviour and Physiology >Acute exposure to an organochlorine pesticide alters locomotor behavior and cardiac function in the freshwater invertebrate Daphnia magna
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Acute exposure to an organochlorine pesticide alters locomotor behavior and cardiac function in the freshwater invertebrate Daphnia magna

机译:急性接触有机氯杀虫剂改变了淡水无脊椎动物Daphnia Magna的运动行为和心脏功能

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摘要

In this study, the acute impacts of aqueous methoxychlor exposure on the viability, locomotive behavior, and heartrate of Daphnia magna was assessed. Adults were exposed to 0 (ethanol control), 1, 2.5, 5, or 10 mu g/L of methoxychlor for 48 hr using a static exposure assay. After 24 hr mobility was quantified using automated behavioral analysis software and differences in mortality and heartrate assessed after 24 and 48 hr. Exposure caused an increase in mortality after 48 hr, with effects seen in as little as 24 hr in the 10 mu g/L treatment. Decreases in speed, total distance traveled, and frozen events were observed after 24 hr. Heartrate in the 10 mu g/L treatment was depressed after 24 hr, with decreases in the 2.5 and 5 mu g/L treatments observed after 48 hr. These results provide an expanded understanding of the impacts of a well-established legacy organochlorine pesticide on a model invertebrate.
机译:在这项研究中,评估了在Daphnia Magna的生存力,机车行为和脑卒中的含水甲氧氧碳氧中的急性影响。 使用静电暴露测定法将成年人暴露于0(乙醇对照),1,2.5,5或10μg/ L的甲氧基甲氧基氯。 在24小时后,使用自动行为分析软件量化,使用自动行为分析软件和248小时后评估死亡率和竞争的差异。 暴露引起了48小时后的死亡率增加,在10μg/ l治疗中只有24小时的效果。 在24小时后观察到速度,总距离的总距离,并且在24小时后观察到冷冻事件。 在24小时后,在10μg/ l处理中抑制了10μg/ l处理,在48小时后观察到的2.5和5μg/ l治疗中的减少。 这些结果提供了扩展了对植物繁殖的遗传有机氯农药对模型无脊椎动物的影响的理解。

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