微塑料暴露对沙的影响Scopimera globosa行为:对微塑料运输和通过生物化循环硫循环的影响

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Chaofan Sun^1,2,3,4,5, Hui Liu^1,2,3,4, Jia Teng^1,2,3,4

¹Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, P. R. China.

Environmental science & technology

|April 1, 2025

概括

沙生物化显著增加了河口沉积物中的微塑料 (MP) 迁移. 这种改变的行为会影响沉积物化学和微生物群落,影响沿海生态系统.

科学领域:

环境科学环境科学
海洋生物学海洋生物学
生态毒理学生态毒理学

背景情况:

在河口积累的微塑料 (MP) 是一个日益严重的全球问题.
岩生物流显著影响MP命运和河口生物地质化学过程.
对于MPs对盆地生物行为的影响和生物流效应的了解很少.

研究的目的:

调查沙生物流对微塑料迁移的影响.
检查微塑料如何影响沙的行为和沉积物质的特性.
评估对河口硫循环和微生物群落的影响.

主要方法:

进行了实验室模拟实验.
基于AI的行为跟踪分析了沙活动.
大基因组测序检查了微生物社区的变化.

主要成果:

沙生物化使MP垂直迁移增加了27倍.
微塑料暴露改变了沙的食行为,并诱导了避免.
生物流转移了微生物群落,增加了"伪蒙多塔",减少了"硫菌群".
生物化加速了硫酸盐的氧化,并抑制了沉积物中的硫酸盐的减少.

结论:

生物化是沉积物中微塑料上升迁移的关键驱动因素.
由于微塑料而改变的沙行为影响了沉积物生物地质化学.
这些发现突出了对河口功能和海岸弹性造成的生态后果.

关键词:

行为变化行为变化生物化是一种生物化.移民移民迁移迁移沙沙这些硫循环是硫循环的过程.

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