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Interspecific and geographical variations of trace metal concentrations in cephalopods from Tunisian waters

机译：突尼斯水域头足类动物中痕量金属浓度的种间和地理变化

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摘要

The concentrations of six metals (Ag, Cd, Cu, Hg, Pb, and Zn) were investigated and compared in three tissues (arms, digestive gland, and mantle) of three ceph-alopod species from the Tunisian waters: the common octopus (Octopus vulgaris), the common cuttlefish (Sepia officinalis), and the European squid (Loligo vulgaris). Whatever the species or the sites, the digestive gland displayed the highest concentrations of Ag, Cd, Cu, Pb, and Zn, highlighting its major role in their bioaccumula-tion and detoxification. This is also true for Hg but only for the digestive gland of O. vulgaris. Muscle from the arms and the mantle contained thus relatively low trace metal concentrations except for Hg in L. vulgaris and S. officinalis. Geographic comparison of metal concentra-tions in Tunisian cephalopods from three locations indi-cates that higher concentrations of Ag, Pb, and Hg were observed in cephalopods from northern and eastern coasts, whereas the highest Cd levels were detected in the south-eastern, reflecting different conditions of exposure. Com-paring the trace element concentrations between species, Ag, Cd, Cu, Hg, and Zn concentrations were the highest in the digestive gland of octopuses. This may be related to the differences in ecological features and swimming behavior among different cephalopod species. Effects of length and sex on metal levels were also considered, indicating a limited influence of sex on metal concentration.
机译：在突尼斯水域的三种头孢足类物种的三种组织（臂，消化腺和地幔）的三种组织（手臂，消化腺和地幔）中，对六种金属（Ag，Cd，Cu，Hg，Pb和Zn）的浓度进行了调查和比较：普通章鱼（章鱼，普通墨鱼（Sepia officinalis）和欧洲鱿鱼（Loligo vulgaris）。不论物种或地点如何，消化腺均表现出最高的Ag，Cd，Cu，Pb和Zn浓度，突出了其在其生物富集和排毒中的主要作用。对于汞也是如此，但仅对于寻常的O.的消化腺。因此，除了寻常乳杆菌和厚皮葡萄球菌中的汞以外，手臂和地幔中的肌肉都含有相对较低的痕量金属浓度。来自三个地点的突尼斯头足类动物中金属浓度的地理比较表明，在北部和东部沿海的头足类动物中观察到较高的Ag，Pb和Hg浓度，而东南部的Cd含量最高，反映出不同的暴露条件。比较物种之间的微量元素浓度，在章鱼的消化腺中，Ag，Cd，Cu，Hg和Zn的浓度最高。这可能与不同头足类物种的生态特征和游泳行为的差异有关。还考虑了长度和性别对金属水平的影响，表明性别对金属浓度的影响有限。

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  • 来源
    《Environmental Monitoring and Assessment》 |2014年第6期|3767-3783|共17页
  • 作者

    Moncef Rjeibi; Marc Metian; Tarek Hajji; Thierry Guyot; Rafika Ben Chaouacha-Chekir; Paco Bustamante;

  • 作者单位

    Faculty of Sciences of Tunis, University Campus, Tunis 2092, Tunisia,Unite de recherche d'Ecophysiologie et de Precedes Agroalimentaires UR11-ES44, Institut Superieur de Biotechnologie de Sidi Thabet (ISBST), Universite La Manouba, BiotechPole Sidi Thabet, Sidi Thabet CP 2020, Tunisia;

    Littoral Environnement et Societes (LIENSs), UMRi 7266 CNRS-Universite de La Rochelle, 2 rue Olympe de Gouges, 17000 La Rochelle, France;

    Unite de recherche d'Ecophysiologie et de Precedes Agroalimentaires UR11-ES44, Institut Superieur de Biotechnologie de Sidi Thabet (ISBST), Universite La Manouba, BiotechPole Sidi Thabet, Sidi Thabet CP 2020, Tunisia;

    Littoral Environnement et Societes (LIENSs), UMRi 7266 CNRS-Universite de La Rochelle, 2 rue Olympe de Gouges, 17000 La Rochelle, France;

    Unite de recherche d'Ecophysiologie et de Precedes Agroalimentaires UR11-ES44, Institut Superieur de Biotechnologie de Sidi Thabet (ISBST), Universite La Manouba, BiotechPole Sidi Thabet, Sidi Thabet CP 2020, Tunisia;

    Littoral Environnement et Societes (LIENSs), UMRi 7266 CNRS-Universite de La Rochelle, 2 rue Olympe de Gouges, 17000 La Rochelle, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Octopus; Cuttlefish; Squid; Trace elements; Bioaccumulation; Mediterranean Sea;

    机译：章鱼;乌贼;乌贼;微量元素;生物蓄积;地中海;

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