表面活性剂Tween-80对浮游生物的生态影响:大规模分析揭示了更深层次的危害
Duanyang Yuan1, Yaoyue Long2, Dan Liu1
1School of Ecology and Environmental Sciences & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, Yunnan 650091, China; Yunnan International Cooperative Center of Plateau Lake Ecological Restoration and Watershed Management & Yunnan Think Tank of Ecological Civilization, Kunming, Yunnan 650091, China.
The Science of the total environment
|December 12, 2023
概括
像Tween-80这样的表面活性剂的生态风险被低估了. 在低度下对动物浮游生物的次致命影响影响掠食者-猎物动态和生态系统稳定性,需要重新评估环境安全.
科学领域:
- 环境毒理学环境毒理学
- 生态毒理学 生态毒理学
- 水生生态学 水生生态学
背景情况:
- 表面活性剂的生态风险往往被忽视,因为其急性毒性较低.
- 对生物体的微致命影响可以改变社区动态和跨物种相互作用.
研究的目的:
- 调查表面活性剂Tween-80对浮游生物的致命和次致命影响.
- 探索放牧者生命史和捕食者-猎物系统稳定性的大规模反应.
主要方法:
- 评估了Scenedesmus quadricauda,Chlorella vulgaris和Daphnia magna对Tween-80之间的致命和次致命反应.
- 对牧草动物 (D. magna) 的特征和D. magna-幼虫的相互作用进行了研究.
主要成果:
- 在度低于100毫克的浮游生物物种中没有观察到急性毒性L-1.1.
- 在10毫克的Tween-80中,L-1影响了牧羊人的氧化应激,心率和游泳.
- 减少牧草者繁殖和增加掠食风险,在低得多的度下危及系统稳定性.
结论:
- 高尺度的生态特征对Tween-80比个人尺度的特征更敏感.
- Tween-80的生态风险需要重新评估,考虑到次致命和社区层面的影响.
- 多级生态毒理学研究对于了解环境污染物的影响至关重要.
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