An Exploration of the Role of Mysids in Benthic-Pelagic Coupling and Biomagnification Using a Dynamic Bioaccumulation Model

Zaheerabbas Patwa; Rebecca Christensen; David C. Lasenby; Eva Webster; Donald Mackay

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An Exploration of the Role of Mysids in Benthic-Pelagic Coupling and Biomagnification Using a Dynamic Bioaccumulation Model

机译：利用动态生物蓄积模型探索类胡萝卜素在底栖-古生物耦合和生物放大中的作用

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A mass -balance model for the uptake of organic contaminants in the opposum shrimp (Mysis relicta) is developed. The model describes the concentration in the mysid as a function of time as it grows and its lipid content changes over a two-year life span. The model can describe uptake in varying proportions from pelagic and benthic sources. Four mysid scenarios are considered: entirely pelagic, entirely benthic, half-pelagic and half-benthic, and following the observed seasonal behavior patterns. The seasonal-scenario mysid yields results consistent with levels of total polychlorinated biphenyls reported for Lake Ontario (Canada/USA). The relative sediment and water fugacities are shown to play a critical role in determining the contamination level in mysids. Inclusion of mysids in a simple food-web model demonstrates higher concentrations in upper-trophic-level organisms by two effects: introduction of another trophic level in the food web, and increased benthic-pelagic coupling.

机译：建立了对虾（Mysis relicta）中有机污染物吸收的质量平衡模型。该模型描述了腮腺中的浓度随时间的增长而变化的过程，并且其脂质含量在两年的寿命中发生了变化。该模型可以描述来自上层和底栖来源的不同比例的吸收。考虑了四种神秘的情况：完全上层，完全下层，半上层和半底栖，并遵循观察到的季节性行为模式。季节性情景下的my节菜产量与报告的安大略湖（加拿大/美国）中多氯联苯总量的水平一致。相对的沉积物和水的逸度显示出在确定类固醇污染水平中的关键作用。在一个简单的食物网模型中加入类肌肽显示出较高营养水平生物体中的较高浓度，这有两个作用：在食物网中引入另一个营养水平，以及底栖-上层耦合增加。

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《Environmental toxicology and chemistry》 |2007年第6期|1224-1232|共9页
作者
Zaheerabbas Patwa; Rebecca Christensen; David C. Lasenby; Eva Webster; Donald Mackay;
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作者单位

Canadian Environmental Modelling Centre, Trent University. Peterborough, Ontario K9J 7B8, Canada;

Canadian Environmental Modelling Centre, Trent University. Peterborough, Ontario K9J 7B8, Canada;

Department of Biology, Trent University, Peterborough. Ontario K9J 7B8, Canada;

Canadian Environmental Modelling Centre, Trent University. Peterborough, Ontario K9J 7B8, Canada;

Canadian Environmental Modelling Centre, Trent University. Peterborough, Ontario K9J 7B8, Canada;

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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
关键词
mysid; model; fugacity; benthic; pelagic;

机译：mysid;模型;逸度底栖中上层;

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An Exploration of the Role of Mysids in Benthic-Pelagic Coupling and Biomagnification Using a Dynamic Bioaccumulation Model

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