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首页> 外文期刊>Science of the total environment >Toxicity and risk assessment of six widely used pesticides on embryo-larval development of the Pacific oyster, Crassostrea gigas
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Toxicity and risk assessment of six widely used pesticides on embryo-larval development of the Pacific oyster, Crassostrea gigas

机译：六种广泛应用农药对太平洋牡蛎胚胎幼虫发展的毒性和风险评估，Crassostrea Gigas

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摘要

This study aims to assess the toxic effects and the potential risk of widely used agricultural pesticides on the development (malformations and developmental arrest), growth and swimming activity of oyster D-larvae (Crassostrea gigas). Freshly fertilized oyster embryos were exposed for 24 h at 24 °C to different concentrations (0,0.01,0.1,1 and 10μg.L~(-1)) of six different pesticides: Glyphosate and its commercial solution (Roundup), Isoproturon, Nicosulfuron, Chlortoluron and Boscalid. The six pesticides tested induced a significant increase in larval malformations and developmental arrests. All pesticides except Glyphosate and Isoproturon affected larval growth. Roundup, Nicosulfuron, Chlortoluron and Boscalid also affected the swimming behaviour of the D-larvae, with a significant decrease recorded in their maximum swimming speed. Comparison of the LOEC (Lowest-Observed-Effect Concentration) of each compound led to the following toxicity classification: Boscalid＞Chlortoluron=Nicosulfuron＞ Glyphosate ＞Roundup ＞ Isoproturon, with respectively LOEC of 0.0028; 0.015; 0.017; 0.11; 0.3 and 0.78 μg.L~(-1). By comparison of the maximum concentrations in the Pertuis Charentais (South West, France) and LOEC of each pesticide, the following risk scale was obtained: Chlortoluron＞Boscalid ＞ Glyphosate ＞ Roundup ＞ Nicosulfuron ＞ Isoproturon. Our results revealed that Chlortoluron, Boscalid and to a lesser extent Glyphosate represent a potential threat to early life stages of oyster living in the Pertuis Charentais marine area.
机译：本研究旨在评估牡蛎D-幼虫（Crassostraes Gigas）的发育（畸形和发育逮捕），生长和游泳活动的毒性效应和潜在风险。将新施肥的牡蛎胚胎暴露于24℃的24小时，以不同的浓度（0.0.01,0.1,1和10μg.1（-1）），六种不同的农药：草甘膦及其商业溶液（圆润），Isoproturon， Nicosulfuron，Chlortoluron和Boscalid。六种杀虫剂测试诱导幼虫畸形和发育逮捕的显着增加。除草甘膦外的所有杀虫剂和异丙脲影响幼虫生长。 Roundup，Nicosulfuron，Chlortoluron和Boscalid也影响了D-Larvae的游泳行为，以最大的游泳速度记录了显着减少。将每种化合物的LOEC（最低观察到效应浓度）的比较导致以下毒性分类：Boscalid> Chlortoluron = Nicosulfuron>草甘膦> Roundup> Isoproturon，分别为0.0028; 0.015; 0.017; 0.11; 0.3和0.78μg.L〜（-1）。通过比较每种农药的Pertuis Charentais（西南，法国）和Loec的最大浓度，获得以下风险规模：Chlortoluron> Boscalid>草甘膦> Roundup> Nicosulfuron> Isoproturon。我们的研究结果表明，Chlortoluron，Boscalid和较小程度的草甘膦对生活在佩特利斯Charentais海域的牡蛎的早期生命阶段表示潜在的威胁。

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  • 来源
    《Science of the total environment》 |2021年第20期|146343.1-146343.11|共11页
  • 作者

    Arno Bringer; Helene Thomas; Gregoire Prunier; Emmanuel Dubillot; Christelle Clerandeau; Marius Pageaud; Jerome Cachot;

  • 作者单位

    Littoral Environnemem et Societes (LIENSs) UMR 7266. CNRS-Universite de La Rochelle 2 rue Olympe de Gouges F-17042 La Rochelle Cedex 01 France;

    Littoral Environnemem et Societes (LIENSs) UMR 7266. CNRS-Universite de La Rochelle 2 rue Olympe de Gouges F-17042 La Rochelle Cedex 01 France;

    Littoral Environnemem et Societes (LIENSs) UMR 7266. CNRS-Universite de La Rochelle 2 rue Olympe de Gouges F-17042 La Rochelle Cedex 01 France;

    Littoral Environnemem et Societes (LIENSs) UMR 7266. CNRS-Universite de La Rochelle 2 rue Olympe de Gouges F-17042 La Rochelle Cedex 01 France;

    Universite Bordeaux CNRS EPOC EPHE UMR 5805 F-33600 Pessac France;

    Qualyse 5 allee de l'Ocean F-17000 La Rochelle France;

    Universite Bordeaux CNRS EPOC EPHE UMR 5805 F-33600 Pessac France;

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  • 正文语种 eng
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  • 关键词

    Embryotoxicity; Oyster; D-larvae; Pesticides; Growth; Swimming behaviour;

    机译：胚胎毒性;牡蛎;D-幼虫;杀虫剂;生长;游泳行为;

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