在淡水鱼类中,微塑料压力反应很少具有协同作用:元分析
Ben Parker1, J Robert Britton2, Iain D Green2
1Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University, Poole, Dorset, BH12 5BB, UK; Department of Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, Devon EX4 4QD, UK.
The Science of the total environment
|July 10, 2024
概括
在淡水鱼类中,微塑料和压力因子的相互作用很少具有协同作用. 大多数影响是附加性或对抗性,这表明单一压力因素的管理可以产生积极的结果.
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:
- 微塑料暴露对淡水鱼的生物化学,状况和生态产生负面影响.
- 微塑料和多种压力因素对鱼类的联合影响尚不清楚.
- 了解这些相互作用对于有效的环境管理至关重要.
研究的目的:
- 分析淡水鱼对微塑料和压力因素的反应.
- 要确定相互作用是否主要是非添加性的 (协同作用或对抗作用).
- 确定影响对共同暴露的净反应的因素.
主要方法:
- 从36项关于淡水鱼类的研究中对838个响应进行了元分析.
- 个人反应的分类为对抗性,添加性或协同性.
- 测试各种暴露和鱼类因素的净响应与零添加模型对比.
主要成果:
- 大多数反应被归类为对抗性 (48%) 和添加性 (34%),协同效应是最不常见的 (17%).
- 在底生鱼物种中发现了协同效应.
- 对生物化学反应,胚胎生命阶段,环境相关暴露和类鱼类观察到对抗作用.
结论:
- 在淡水鱼类中,微塑料与压力因素的相互作用很少具有协同作用.
- 解决个人压力因素的管理策略可能会产生积极的结果.
- 需要进一步的研究来解决现有的鱼类生态毒理学知识差距.
相关概念视频
Responses to Salt Stress
12.3K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
12.3K
Other Stress Responses in Bacteria
593
Bacteria have global regulatory systems that control several types of stress mechanisms. These include Pho regulon and the heat shock response, which are essential systems for environmental adaptation, such as nutrient limitation and proteotoxic stress. The Pho regulon and the heat shock response exemplify bacterial resilience, enabling rapid adaptation to fluctuating environmental conditions.Pho RegulonBacteria require phosphorus for essential cellular processes, including nucleic acid...
593
Freshwater Microbial Ecology
67
Freshwater systems such as streams, rivers, and lakes exhibit distinct physical and biological characteristics that influence their microbial communities. These environments are broadly categorized into lotic systems—those with flowing waters like streams and most rivers—and lentic systems, which include still or slow-moving waters such as lakes, ponds, and marshes.In lentic systems, phytoplankton drive primary production, generating autochthonous organic carbon. In contrast, lotic...
67


