暴露于聚乙烯微塑料的Girardia tigrina的行为和生理反应
Rayane Reis Sousa1, Roberta Brito Vasconcelos2, Rone Silva Barbosa1
1Programa de Pós-Graduação Em Produção Vegetal, Universidade Federal Do Tocantins, Campus de Gurupi, Gurupi, Tocantins, 77402-970, Brazil.
概括
暴露在聚乙烯微塑料中的淡水鱼对再生和繁殖产生了重大影响. 运动仍然不受影响,这表明平面生物是水生环境中微塑料污染的敏感指标.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 水生生物学 水生生物学
背景情况:
- 微塑料是全球淡水生态系统中普遍存在的污染物.
- 水生生物面临着越来越多的微塑料暴露.
- 对微塑料影响的研究,特别是对再生的影响,是有限的.
研究的目的:
- 研究聚乙烯微塑料对淡水平鱼 (Girardia tigrina) 的再生和行为的影响.
- 评估平面生物作为水生环境中微塑料毒性的模型生物.
主要方法:
- Girardia tigrina将聚乙烯微塑料纳入了他们的饮食.
- 评估了再生,生殖,生育能力和运动能力.
- 里埃变换红外光谱 (FT-IR) 证实了聚合物的身份和摄入.
主要成果:
- 在10微克/毫克肝脏中,平面再生受到显著影响.
- 生殖和生育能力受到50微克/毫克肝脏的影响.
- 在测试度下,运动没有显著影响.
结论:
- 聚乙烯微塑料对淡水生物有潜在的不良影响.
- 平面再生和繁殖是微塑料诱导毒性的敏感指标.
- 这项研究支持使用平面体来评估水环境污染风险.
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