期刊
ENVIRONMENTAL POLLUTION
卷 161, 期 -, 页码 343-349出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2011.08.048
关键词
Methylmercury; Biomass dilution; Zooplankton; Trophic; Lake Champlain
资金
- NOAA as part of the Lake Champlain Research Consortium [NA06OAR4600222]
- VTANR
- USGS
- NIH from the National Institute of Environmental Health Sciences [P42 ES007373]
Trophic transfer of Hg across lakes within a region has been related to multiple environmental factors, but the nature of these relationships across distinct basins within individual large lakes is unknown. We investigated Hg bioaccumulation in zooplankton in basins of differing trophic status in lake Champlain (Vermont, USA) to determine the strongest predictors of Hg bioaccumulation. Zooplankton were sampled in Malletts Bay (oligotrophic) and Missisquoi Bay (eutrophic) in 2005-2008. Zooplankton in the eutrophic basin had lower concentrations of total Hg and MeHg than those in the oligotrophic basin in all years but 2007, when no bloom occurred in Missisquoi. In addition, Hg concentrations in seston and small zooplankton, sampled during 2009 at 12 sites spanning the lake, decreased with increasing phytoplankton and zooplankton biomass. Thus. Hg bioaccumulation in zooplankton across basins in Lake Champlain is related to trophic status, as observed previously in multiple lake studies. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据