A modeling study on methylmercury bioaccumulation and its controlling factors

被引：22
|
作者：
Kim, Eunhee [1 ,2 ]
Mason, Robert P. [3 ]
Bergeron, Christine M. [4 ]
机构：
[1] Chonnam Natl Univ, Dept Oceanog, Kwangju 500757, South Korea
[2] Univ Maryland, Chesapeake Biol Lab, Ctr Environm Sci, Solomons, MD 20688 USA
[3] Univ Connecticut, Dept Marine Sci, Groton, CT 06340 USA
[4] Virginia Polytech Inst & State Univ, Dept Fisheries & Wildlife Sci, Blacksburg, VA 24060 USA
来源：
ECOLOGICAL MODELLING | 2008年 / 218卷 / 3-4期
关键词：
Mercury; Methylmercury; Bioaccumulation model; Sediment resuspension; Mercury methylation; Methylmercury demethylation;
D O I：
10.1016/j.ecolmodel.2008.07.008
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
The objectives of this study were: (1) to develop a methylmercury (MeHg) bioaccumulation model using data from STORM (high bottom Shear realistic water column Turbulence Resuspension Mesocosms) experiments; and (2) to use the model as a diagnostic tool to examine an effect of sediment resuspension and other important factors on MeHg bioaccumulation. There were four mesocosm experiments (1-4) conducted both in summer and fall. Tidal resuspension (4 h on- and 2 h off-cycles) was simulated using the STORM facility at CBL, UMCES (Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science). The model results showed that changes in clam biomass had a great effect on phytoplankton and zooplankton biomass, and consequently MeHg accumulation. In addition, it appeared that sediment resuspension played a role in transferring the enhanced sediment MeHg into organisms inhabiting both water column and sediment. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：267 / 289
页数：23
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