微塑料的摄入模式和聚合物成分在海洋区域之间有所不同吗? 印度海岸的一个案例研究
Suvarna S Devi1, Nasila Saifudeen1, Krishnannair Satheesh Kumar2
1Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 69551, Kerala, India.
Marine pollution bulletin
|June 2, 2024
概括
微塑料污染了印度洋中部的深海鱼类. 养行为,而不是息地,驱动了微塑料 (MP) 的摄入,这表明鱼类可以指示污染水平.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 海洋学 海洋学 海洋学
背景情况:
- 微塑料 (MP) 污染是一个日益严重的全球问题,影响海洋生态系统.
- 深海环境越来越多地被认为是人为垃圾的沉池,包括国会议员.
- 了解深海动物群中的MP污染对于评估生态系统健康至关重要.
研究的目的:
- 调查来自印度洋中部深海鱼的胃肠道中微塑料的流行程度和类型.
- 为了确定影响微塑料摄入的因素,如鱼类,食量水平和息地.
- 评估深海鱼类作为微塑料污染的生物指标的潜力.
主要方法:
- 在印度海岸收集的27种深海鱼类的胃肠道分析.
- 富里埃变换红外光谱 (FTIR) 和微拉曼光谱用于聚合物识别.
- 利基分区分析,以确定影响MP摄入的因素.
主要成果:
- 在27种物种中,有19种物种 (70.4%) 呈现微塑料污染,平均每个人2.68个MP.
- 聚乙烯二甲 (PET) 是最常见的聚合物 (33.33%),其次是PVA,PP,PVC,PU,PTFE,PANI,PMMA和PES.
- 微塑料的摄入量在类鱼类和高热量水平的鱼类中较高.
- 食行为被确定为MP摄入的主要驱动因素,超过了息地和食用水平.
结论:
- 印度洋中部的深海鱼类严重受到微塑料的污染.
- 饮食习惯在微塑料吸收中发挥的作用比息地或热带位置更为关键.
- 通过副捕获监测的深海鱼类可以作为评估海洋区域中微塑料污染的有价值的生物指标.
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