在海底鱼和鱼类中摄入微塑料和检测塑料添加剂:对开放海洋食物网中的生物指标和塑料标记物的影响
Annalisa Sambolino1, Eva Iniguez2, Inma Herrera3
1MARE - Marine and Environmental Sciences Centre, ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; Marine Biology Station of Funchal, Faculty of Life Sciences, University of Madeira, Portugal; LB3, Faculty of Exact Science and Engineering, University of Madeira, Portugal.
The Science of the total environment
|June 18, 2023
概括
微塑料污染海洋生物,对海洋生态系统构成风险. 这项研究在鱼类和鱼中发现了MP,摄入量与季节和养强度有关,并检测到像DIBP这样的塑料添加剂.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 生态毒理学 生态毒理学
背景情况:
- 微塑料 (MP) 在海洋中普遍存在,对海洋生物的长期影响尚不清楚,包括暴露在塑料添加剂中.
- 海物种是海洋健康的关键指标,但这些群体对MP摄入的数据仍然有限.
研究的目的:
- 研究来自东北大西洋的类鱼和类鱼的微塑料摄入.
- 分析这些生物体中的甲酸 (PAE),并探索与摄入的MP的相关性.
- 确定影响MP摄入率的关键生态和生物因素以及潜在的生物指标.
主要方法:
- 分析了72只鱼和20只鱼标本的消化道,和油墨袋中的微塑料含量.
- 使用分析化学技术在生物组织中定量七种甲酸 (PAE).
- 统计分析以将MP摄入与生态因素 (季节,饮食) 和生物指数 (GSI) 相关联.
主要成果:
- 在所有分析物种中检测到微塑料,其中90%被确定为纤维.
- 摄入率因物种而异,其中 *Scomber colias * 显示胃MP发生率最高 (85%).
- 胃体指数 (GSI) 和季节是鱼类中MP摄入的重要预测因素,在寒冷的季节和更高的养强度中,食率更高.
- 在所有物种中检测到四种PAE (DEP,DIBP,BBP,DEHP),DIBP与摄入的MP显示出正相关性,这表明它是潜在的塑料标记物.
结论:
- 鱼和鱼是东北大西洋中微塑料的重要积聚物.
- 季节和养强度是鱼中微塑料摄入的关键驱动因素.
- 这些海洋生物中存在酸盐,特别是DIBP,这突显了潜在的风险和需要进一步研究污染源,生态影响和海鲜消费对人类健康的影响.
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