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The effects of ethylene glycol and ethanol on the body mass and elemental composition of insects collected with pitfall traps

机译：乙二醇和乙醇对陷阱陷阱收集的昆虫的体重和元素组成的影响

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摘要

Insects often used as accumulation indicators of hazardous elements. Pitfall traps with ethylene glycol as trapping fluid are frequently used to collect insects. We studied the effect of glycol and preservation with ethanol on the elemental composition of hand collected firebugs. Control samples were stored in a freezer and the following treatments were used: insect kept in trapping fluid for 2 weeks, and for 1 month, trapping fluid for 2 weeks plus 2 weeks in ethanol, and trapping fluid for 1 month plus ethanol for 1 month. Insects kept in trapping fluid gained mass with respect to control: 26% for the short trapping and 37% for the long trapping. Preservation in ethanol reversed this effect in each case. Trapping fluid did not alter the dry mass. A significant loss in dry mass only occurred in the long trapping plus long preservation treatment. We analysed the concentration of eight elements: Ca, Cu, K, Mg, Mn, Na, Sr and Zn. We found significant difference in the concentrations of elements among the four treatments in the case of all elements, except magnesium and zinc. Our results indicate the potential of both certain trapping fluids as well as preservation in ethanol influencing the concentration of certain elements in insects. Live trapping for collection and storage in under freezing conditions for preservation could be a more reliable method if quantitative analytical studies are to be performed, when invertebrates are used as indicators of the presence and concentrations of hazardous substances in the environment.
机译：昆虫常被用作有害元素的积累指标。以乙二醇为诱捕剂的陷阱陷阱通常用于收集昆虫。我们研究了乙二醇和乙醇保存对人工采集的萤火虫元素组成的影响。将对照样品保存在冰箱中，并进行以下处理：将昆虫在诱捕液中放置2周，并保留1个月，将诱捕液在乙醇中保留2周再加上2周，然后将诱捕液1个月并添加乙醇1个月。 。相对于对照，保留在诱集液中的昆虫获得了质量：短期诱集占26％，长期诱集占37％。在每种情况下，保存在乙醇中均可逆转这种影响。捕集流体不会改变干燥质量。干物质的重大损失仅发生在长时间的诱捕和长时间的保存处理中。我们分析了8种元素的浓度：Ca，Cu，K，Mg，Mn，Na，Sr和Zn。我们发现，在除镁和锌以外的所有元素的情况下，四种处理之间元素的浓度存在显着差异。我们的结果表明，某些诱捕液的潜力以及在乙醇中的保存都会影响昆虫中某些元素的浓度。如果要进行定量分析研究，那么当将无脊椎动物用作环境中有害物质的存在和浓度的指标时，在冰冻条件下进行活体捕集以保存和保存可能是一种更可靠的方法。

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  • 来源
    《Chemosphere》 |2009年第10期|1447-1452|共6页
  • 作者

    Mihaly Braun; Edina Simon; Istvan Fabian; Bela Tothmeresz;

  • 作者单位

    Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem ter 1, Hungary;

    Department of Ecology, University of Debrecen, H-4032, Debrecen, Egyetem ter 1, Hungary;

    Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem ter 1, Hungary;

    Department of Ecology, University of Debrecen, H-4032, Debrecen, Egyetem ter 1, Hungary;

  • 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

    bioindicators; heavy metals; pitfall trapping; ethylene glycol; ethanol; elemental analysis;

    机译：生物指示剂重金属;陷阱陷阱乙二醇;乙醇元素分析;

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