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首页> 外文期刊>Environmental research >Contaminants and energy expenditure in an Arctic seabird: Organochlorine pesticides and perfluoroalkyl substances are associated with metabolic rate in a contrasted manner
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Contaminants and energy expenditure in an Arctic seabird: Organochlorine pesticides and perfluoroalkyl substances are associated with metabolic rate in a contrasted manner

机译：北极海鸟中的污染物和能量消耗：有机氯农药和全氟烷基物质与代谢率呈相反关系

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摘要

Basal metabolic rate (BMR), the minimal energetic cost of living in endotherms, is known to be influenced by thyroid hormones (THs) which are known to stimulate in vitro oxygen consumption of tissues in birds and mammals. Several environmental contaminants may act on energy expenditure through their thyroid hormone-disrupting properties. However, the effect of contaminants on BMR is still poorly documented for wildlife. Here, we investigated the relationships between three groups of contaminants (organochlorines (OCs), perfluoroalkyl substances (PFASs), and mercury) with metabolic rate (MR), considered here as a proxy of BMR and also with circulating total THs (thyroxine (TT4) and triiodothyronine (TT3)) in Arctic breeding adult black-legged kittiwakes (Rissa tridactyla) from Svalbard, during the chick rearing period. Our results indicate a negative relationship between the sum of all detected chlordanes (ΣCHLs) and MR in both sexes whereas perfluoro-tridecanoate (PFTrA) and MR were positively related in females only. MR was not associated with mercury. Additionally, levels of TT3 were negatively related to ΣCHLs but not to PFTrA. The findings from the present study indicate that some OCs (in both sexes) and some PFASs (only in females) could disrupt fine adjustment of BMR during reproduction in adult kittiwakes. Importantly, highly lipophilic OCs and highly proteinophilic PFASs appear, at least in females, to have the ability to disrupt the metabolic rate in an opposite way. Therefore, our study highlights the need for ecotoxicological studies to include a large variety of contaminants which can act in an antagonistic manner.
机译：基础代谢率（BMR）是在吸热中生活的最低能量成本，已知受甲状腺激素（THs）的影响，甲状腺激素（THs）可以刺激鸟类和哺乳动物体内组织的耗氧量。几种环境污染物可能会通过破坏甲状腺激素的作用而影响能量消耗。但是，对于野生生物，污染物对BMR的影响仍然很少。在这里，我们调查了三类污染物（有机氯（OCs），全氟烷基物质（PFASs）和汞）与代谢率（MR）之间的关系，在这里将其视为BMR的代表，同时还与循环总TH（甲状腺素（TT4） ）和三碘甲状腺素（TT3））在小鸡饲养期间从斯瓦尔巴特群岛繁殖的成年黑脚成年黑鸢（Rissa tridactyla）。我们的结果表明，在所有性别中，所有检出的氯丹（ΣCHLs）的总和与MR之间呈负相关，而全氟十​​三烷酸酯（PFTrA）和MR仅在女性中呈正相关。 MR与汞无关。另外，TT3的水平与ΣCHL负相关，而与PFTrA无关。本研究的结果表明，某些成年雌性生殖过程中的OC（男女）和某些PFAS（仅女性）可能会破坏BMR的精细调节。重要的是，至少在女性中，高度亲脂性OC和高度亲脂性PFAS似乎具有以相反方式破坏代谢速率的能力。因此，我们的研究突出了生态毒理学研究的必要性，其中包括各种可以拮抗作用的污染物。

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  • 来源
    《Environmental research》 |2017年第8期|118-126|共9页
  • 作者

    Pierre Blevin; Sabrina Tartu; Hugh I. Ellis; Olivier Chastel; Paco Bustamante; Charline Parenteau; Dorte Herzke; Frederic Angelier; Geir W. Gabrielsen;

  • 作者单位

    Centre d'Etudes Biologiques de Chize (CEBC), UMR 7372 - CNRS & Universke de la Rochelle, 79360 Villiers-en-Bois, France;

    Centre d'Etudes Biologiques de Chize (CEBC), UMR 7372 - CNRS & Universke de la Rochelle, 79360 Villiers-en-Bois, France,Norwegian Polar Research Institute, From Centre, NO-9296 Tromso, Norway;

    Department of Biology, University of San Diego, San Diego, CA 92110, USA;

    Centre d'Etudes Biologiques de Chize (CEBC), UMR 7372 - CNRS & Universke de la Rochelle, 79360 Villiers-en-Bois, France;

    Littoral Environnement et Societes (LIENSs), UMR 7266 - CNRS& Universki de la Rochelle, 2 rue Olympe de Gouges, 17000 La Rochelle, France;

    Centre d'Etudes Biologiques de Chize (CEBC), UMR 7372 - CNRS & Universke de la Rochelle, 79360 Villiers-en-Bois, France;

    Norwegian Institute for Air Research, N1LU, From Centre, NO-9296 Troms0, Norway;

    Centre d'Etudes Biologiques de Chize (CEBC), UMR 7372 - CNRS & Universke de la Rochelle, 79360 Villiers-en-Bois, France;

    Norwegian Polar Research Institute, From Centre, NO-9296 Tromso, Norway;

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  • 正文语种 eng
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  • 关键词

    Organic contaminants; Mercury; BMR; Thyroid hormones; Black-legged kittiwake;

    机译：有机污染物;汞;BMR;甲状腺激素;黑脚kittiwake;

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