埋葬并被遗忘:古老的深海鱼谱系中的塑料污染
Guilherme V B Ferreira1, Natascha Schmidt2, Anne K S Justino3
1Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biodiversidade e Sustentabilidade (NUPEM), Av. Amaro Reinaldo dos Santos Silva, 764, Macaé, RJ, 27965-045, Brazil; Universidade Federal Rural de Pernambuco (UFRPE), Departamento de Pesca e Aquicultura (DEPAQ), Rua Dom Manuel de Medeiros, s/n, Recife, PE, 52171-900, Brazil.
Marine pollution bulletin
|December 9, 2025
概括
深海黑鱼已经摄入了微塑料,在加勒比海的标本中发现了高度的危险聚合物. 这凸显了这些古老的食尸动物对塑料污染和潜在的食物网影响的脆弱性.
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:
- 微塑料污染了海洋生态系统,深海充当了最后的沉没点.
- 微塑料对深海动物,特别是食尸动物的生态影响尚不清楚.
- 鱼 (Myxini) 是古老的,深海的食尸动物,具有独特的适应本土环境.
研究的目的:
- 提供了第一份关于深海鱼摄入微塑料的记录证据.
- 量化鱼胃肠道中的微塑料度和类型.
- 评估微塑料污染对鱼健康和深海食物网的影响.
主要方法:
- 胃肠道 (GIT) 对来自加勒比海约900米深处收集的*Myxine mcmillanae*进行分析.
- 立体分析和热解气体染色学/质谱学 (Py-GC/MS) 用于微塑料的识别和量化.
- 微塑料度与其他海洋生物在相似深度的数据进行比较.
主要成果:
- 在所有分析的鱼标本中检测到微塑料.
- 平均微塑料度为4302.3±3785.3μg GIT−1g−1,每个人有3.3±2.2颗粒.
- 危险的聚合物,特别是聚乙烯,占据了微塑料成分的主导地位,引发了健康问题.
结论:
- 深海鱼很容易受到微塑料的摄入,其度超过许多其他深海鱼的度.
- 微塑料的热带转移,可能是通过尸体的消费,被认为是主要的暴露途径.
- 这些发现强调了需要在评估塑料污染对生态的影响时包括深海食尸动物的必要性.
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