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首页> 外文期刊>Marine biology >Ingestion and elimination of anthropogenic fibres and microplastic fragments by the European anchovy (Engraulis encrasicolus) of the NW Mediterranean Sea
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Ingestion and elimination of anthropogenic fibres and microplastic fragments by the European anchovy (Engraulis encrasicolus) of the NW Mediterranean Sea

机译：欧洲凤尾鱼（ENGRAULIS ENRIBOLISOLUS）的摄取和消除人为纤维和微塑料碎片的NW地中海

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摘要

This study analysed the anthropogenic microparticles in the stomach content of the European anchovy (Engraulis encrasicolus) in the Ligurian Sea (NW Mediterranean). The results showed that 30-40% of the anchovies had ingested anthropogenic microparticles (on average, 0.34 +/- 0.29 fibres ind(-1)and 0.12 +/- 0.12 fragments ind(-1)). The fibres were probably ingested via filtration, and were significantly correlated with the gut fullness. Fibres were mostly dark, but the presence of other colours was frequent, indicating a general lack of selectivity. Plastic fragments composed of polyethylene and polypropylene were prevalently transparent, suggesting active predation, especially for larger fragments resembling zooplankton. No significant differences were recorded for the frequency of fish containing particles among females, males, and undetermined individuals. The presence of, generally, only one anthropogenic item per fish, as observed for 95.8% of fish containing microparticles, indicated that the permanence of these particles in the stomachs was short, likely no more than 1 day, although it could also depend on low environmental concentrations. The evaluation of the intestinal lumen indicated that a portion of the plastic fragments found in the stomach could not be ejected. Hard fragments that were larger than the intestinal lumen could be held for longer times, but probably regurgitation, fragmentation, and embedding in a biological matrix may facilitate their quick elimination. It is pivotal to understand the processes that regulate the abundance and the residential time of anthropogenic particles in commercial organisms captured for human nutrition, given the potential biomagnification of toxic substances carried by ingested particles.
机译：该研究分析了欧洲凤尾鱼（Engraulis Errasicolus）胃含量的人为微粒（NW地中海）。结果表明，30-40％的凤尾鱼已摄入人为微粒（平均而言，0.34 +/- 0.29纤维IND（-1）和0.12 +/- 0.12片段IND（-1））。纤维可能通过过滤摄取，并与肠饱和显着相关。纤维大多是黑暗的，但频繁的其他颜色的存在频繁，表明普遍缺乏选择性。由聚乙烯和聚丙烯组成的塑料片段普遍透明，表明活跃的捕食，特别是对于类似于浮游动物的较大碎片。对于雌性，男性和未确定个体的含有颗粒的鱼的频率没有记录显着的差异。通常只有一个每鱼的一个人类学物品，如图95.8％的含有微粒的鱼类，表明这些颗粒在胃中的持续时间短，可能不超过1天，但它也可能取决于低温环境浓度。肠腔的评价表明，在胃中发现的一部分塑料片段不能被弹出。大于肠腔的硬片段可以保持更长的时间，但可能在生物学基质中嵌入，但可能有助于它们的快速消除。鉴于通过摄入颗粒携带的有毒物质的潜在生物涂布，了解调节对人类营养的商业生物中的人为颗粒的丰度和人为颗粒的住宅时间的过程是关键的。

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  • 来源
    《Marine biology》 |2020年第11期|166.1-166.15|共15页
  • 作者

    Capone Alessandro; Petrillo Mario; Misic Cristina;

  • 作者单位

    Univ Genoa Dept Earth Environm & Life Sci Corso Europa 26 I-16132 Genoa Italy;

    Univ Genoa Dept Earth Environm & Life Sci Corso Europa 26 I-16132 Genoa Italy;

    Univ Genoa Dept Earth Environm & Life Sci Corso Europa 26 I-16132 Genoa Italy;

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