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首页> 外文期刊>Environmental Science & Technology >Modeling the Effect of Temperature on Bioaccumulation of Metals by a Marine Bioindicator Organism, Mytilus edulis
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Modeling the Effect of Temperature on Bioaccumulation of Metals by a Marine Bioindicator Organism, Mytilus edulis

机译：通过海洋生物指示物微生物Mytilus edulis模拟温度对金属生物富集的影响

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摘要

To determine whether regional or seasonal variability in water temperatures might affect the bioaccumulation of metals by marine invertebrates, we used a biokinetic/bioenergetic approach to model metal bioaccumulation (Ag, Am, Cd, Co, Se, and Zn) from dietary and dissolved sources by blue mussels, Mytilus edulis, acclimated at 2 and 12 ℃. Accumulation of metal from the aqueous phase was not affected by temperature. However, Ag, Am, and Zn from diet were respectively accumulated up to 5.7-fold, 5.3-fold, and 2-fold more effectively at 2 ℃ than at 12℃, largely because these three metals were assimilated from food more effectively at the lower temperature. In contrast, bioaccumulation of Cd, Co, Se from diet was not substantially affected by temperature even though efflux constants for these metals were up to 4-fold lower at 2 ℃ than at 12 ℃. Total bioaccumulation of Ag, Am, and Zn was up to 1.7-3.6-fold higher at 2 ℃ than at 12 ℃, with the largest differences predicted for high food conditions. Temperature-related variability in bioaccumulation of metals should be considered when interpreting patterns in metal tissue concentrations and when adapting management strategies developed for temperate seas to polar areas.
机译：为了确定水温的区域或季节变化是否会影响海洋无脊椎动物对金属的生物蓄积，我们使用了生物动力学/生物能方法来模拟饮食和溶解源中金属的生物蓄积（Ag，Am，Cd，Co，Se和Zn）。蓝贻贝（Mytilus edulis），在2和12℃下适应。来自水相的金属积累不受温度的影响。然而，饮食中的Ag，Am和Zn在2℃时比在12℃时分别有效地分别最多累积了5.7倍，5.3倍和2倍，主要是因为这三种金属在食物中的吸收效率更高。较低的温度。相比之下，尽管这些金属的外流常数在2℃时比在12℃时低4倍，但饮食中Cd，Co，Se的生物累积量却不受温度的影响。在2℃时，Ag，Am和Zn的总生物积累比在12℃时高多达1.7-3.6倍，对于高食物条件，预测的最大差异最大。在解释金属组织浓度的模式以及将为温带海域开发的管理策略适应极地地区时，应考虑金属生物蓄积中与温度相关的可变性。

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  • 来源
    《Environmental Science & Technology》 |2008年第9期|p.3277-3282|共6页
  • 作者

    STEPHEN B. BAINES; NICHOLAS S. FISHER;

  • 作者单位

    Marine Sciences Research Center, School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794-5000;

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

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