Scholarlink

<p>The goal of this study was to document the presence and density of microplastics and invertebrates in the hyporheic sediments of the large Paraná River in sandbanks (Argentina). Nine species of hyporheic invertebrates were recorded and identified for the first time, with an average density of 14,164 ± 13,889 ind./m³. <i>Isotoma</i> sp1 (12,729 ± 19,444 ind/m³) and <i>Aelosoma</i> sp1 (13,889 ± 24,056 ind/m³) were the most abundant species. The average concentration of microplastic was 25,000 ± 9,129 MPs/m³. All microplastics detected were polyethylene terephthalate (PET) fibers, with sizes ranging from 693 to 1,820&#xa0;μm. While the absence of comprehensive QA/QC procedures constrains the precision of absolute concentration estimates, these findings provide important baseline information for the Paraná River, in which no previous data were available. The co-occurrence of invertebrates and microplastics in the hyporheic sediments of the Paraná River highlights the potential threat that microplastics pose to the survival of hyporheic invertebrates in river ecosystems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

First Assessment of Microplastics and Invertebrate Fauna in the Hyporheic Zone of the Large Paraná River (Argentina)

  • 期刊论文

  • 发表日期：

    2025年12月29日

查看全文
  • Daiana Pascuale,
  • Nicolás A. Garello,
  • Martín C. M. Blettler,
  • Carlo Gualtieri

摘要

The goal of this study was to document the presence and density of microplastics and invertebrates in the hyporheic sediments of the large Paraná River in sandbanks (Argentina). Nine species of hyporheic invertebrates were recorded and identified for the first time, with an average density of 14,164 ± 13,889 ind./m³. Isotoma sp1 (12,729 ± 19,444 ind/m³) and Aelosoma sp1 (13,889 ± 24,056 ind/m³) were the most abundant species. The average concentration of microplastic was 25,000 ± 9,129 MPs/m³. All microplastics detected were polyethylene terephthalate (PET) fibers, with sizes ranging from 693 to 1,820 μm. While the absence of comprehensive QA/QC procedures constrains the precision of absolute concentration estimates, these findings provide important baseline information for the Paraná River, in which no previous data were available. The co-occurrence of invertebrates and microplastics in the hyporheic sediments of the Paraná River highlights the potential threat that microplastics pose to the survival of hyporheic invertebrates in river ecosystems.