来自城市河流的Poecilia reticulata的饮食组成和塑料摄入
Amanda Selinger1,2, João Henrique Alliprandini da Costa3,4, Letícia Mazzuco Sandri5
1Laboratory of Biology of Marine and Coastal Organisms - LABOMAC, Santa Cecília University (UNISANTA), Santos, SP, Brazil. amandaselinger@gmail.com.
Environmental science and pollution research international
|August 8, 2024
概括
城市河流中的鱼类正在消耗微塑料,这表明环境污染. 这项研究在Poecilia reticulata的饮食中发现了聚乙烯二甲和聚烯,突出了对塑料影响的进一步研究的需要.
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:
- 鱼类作为环境污染的关键生物指标.
- 评估水生生态系统中的塑料污染对于了解生态风险至关重要.
- 鱼类的饮食可以揭示微塑料等环境污染物的来源和途径.
研究的目的:
- 研究聚合物在Poecilia reticulata的胃肠内含量的发生,特征和化学成分.
- 评估Poecilia reticulata作为亚热带城市流中的塑料污染生物指标的潜力.
- 确定Poecilia reticulata摄入的塑料类型及其潜在来源.
主要方法:
- 使用体积方法对240个Poecilia reticulata个体的胃肠道内容进行分析.
- 使用拉曼光谱对微塑料 (MP) 的表征,包括形状,颜色,尺寸和化学成分.
- 聚合物类型的识别,如聚乙烯二甲 (PET) 和聚烯 (PP).
主要成果:
- 波埃西里亚网状动物主要食用有机碎片和水生无脊椎动物.
- 总共有111个塑料颗粒被确定,其中PET和PP是最常见的聚合物.
- 在一些塑料碎片中检测到甲和蓝色染料,这表明了特定的污染源.
结论:
- 在城市的河流中,Poecilia reticulata吸收了微塑料,证实了它们作为塑料污染的生物指标的作用.
- 这些发现强调了水生环境中塑料污染的普遍性.
- 建议进行进一步的研究,以探索摄入微塑料对鱼类和水生生态系统的生态影响.
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