生态特征并不能预测新热带河流中的鱼类吸收微塑料
Igor David da Costa1,2, Leonardo Lopes Costa3, César Augusto Marcelino Mendes Cordeiro3
1Departamento de Ciências Exatas, Biológicas e da Terra, Universidade Federal Fluminense, Santo Antônio de Pádua, Rio de Janeiro, 28470-000, Brazil. igorbiologia@yahoo.com.br.
Environmental science and pollution research international
|August 4, 2023
概括
微塑料污染了大西洋雨林中的鱼类.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 海洋生物学 海洋生物学
背景情况:
- 合成聚合物污染导致微塑料 (MP),造成环境风险.
- 微塑料污染是全球水生生态系统日益关注的问题.
- 由于其食习惯,Ichthyofauna是微塑料的潜在载体.
研究的目的:
- 评估来自庞巴河,大西洋雨林的20种鱼类中的微塑料污染.
- 分析鱼类器官中的微塑料的丰富性,多样性,聚合物类型,颜色和大小.
- 研究鱼类特征与微塑料摄入之间的关系.
主要方法:
- 在2019年11月和2020年3月,从庞巴河沿线的五个地点收集了20个物种的101条鱼.
- 分析了鱼类器官的微塑料存在,识别了形态型,聚合物,颜色和尺寸.
- 统计分析以确定影响微塑料丰度的因素.
主要成果:
- 49%的分析鱼类 (20种中的13种) 含有微塑料.
- 微塑料纤维占发现的总MP的91%,颜色主要是蓝色.
- 确定了聚乙烯二甲 (PET),聚烯 (PP),聚胺 (PA),聚乙烯化物 (PVDC) 和高密度聚乙烯 (HDPE).
- 摄入MP与鱼类的大小和物种有关,而不是食物水平或养区域.
结论:
- 庞巴河中的鱼类受到微塑料污染的严重影响.
- 微塑料纤维的普及凸显了一个主要的污染途径.
- 存在潜在的人类健康风险,因为55%的研究鱼类被人类消费.
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