深海十足动物摄入微塑料的比较评估:在撒丁岛和加泰罗尼亚水域的分布分析
L Chiacchio1, A Cau1, A Soler-Membrives2
1Dipartimento di Scienze della Vita e dell'Ambiente, Università degli Studi di Cagliari, Via Tommaso Fiorelli 1, 09126, Cagliari, Italy.
Environmental research
|January 29, 2025
概括
微塑料 (MP) 污染影响深海甲动物,72.5%的分析的十足动物摄入了MP,主要是纤维. 种类和位置显著影响MP负载,突出了多样化的环境暴露和特定物种的特征.
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) 污染是一个普遍的环境问题,地生态系统作为重要的积累区.
- 关于深海生物群和MPs之间的相互作用的知识差距仍然存在.
- 甲类十足动物是深海食物网和潜在生物指标的关键组成部分.
研究的目的:
- 在地中海的四种深海甲类十足动物中进行MP摄入的比较分析.
- 为了确定MP摄入的特定物种变异.
- 探索影响深海甲鱼MP摄入模式的因素.
主要方法:
- 在四种十足动物中对MP摄入的比较分析:Aristeus antennatus,Aristaeomorpha foliacea,Nephrops norvegicus和Parapenaeus longirostris.
- 从地中海两个不同的地区取样.
- 摄入的MPs的量化和表征,重点是形状和负载.
主要成果:
- 72.5%的分析个体已经摄入了MP.
- 纤维是占主导地位的MP形状 (91.36%),其次是纠 (8.64%).
- 与撒丁岛的标本相比,加泰罗尼亚标本的MP纤维负载显著更高 (平均3.69ind-1),而撒丁岛的标本 (平均1.62ind-1).
- 观察到特定物种的污染模式,其中A. antennatus在加泰罗尼亚和N. norvegicus在撒丁岛的负载最高.
结论:
- 在深海甲类十足动物中,MP的摄入量有很大差异,受物种特定的食生态和形态的影响.
- 环境MP暴露的区域差异可能导致摄入量观察到的变化.
- 综合性评估对于了解深海甲类的MP摄入趋势及其生态影响至关重要.
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