Floodplain methylmercury biomagnification factor higher than that of the contiguous river (South River, Virginia USA).

@article{Newman2011FloodplainMB,
  title={Floodplain methylmercury biomagnification factor higher than that of the contiguous river (South River, Virginia USA).},
  author={Michael C. Newman and Xiaoyu Xu and Anne M. Condon and Lian Liang},
  journal={Environmental pollution},
  year={2011},
  volume={159 10},
  pages={
          2840-4
        }
}

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References

SHOWING 1-10 OF 30 REFERENCES
Compartmentalization of mercury in biotic components of terrestrial flood plain ecosystems adjacent to the South River AT Waynesboro, VA
Aquatic Hg contamination extending more than 200 km along the South River, South Fork of the Shenandoah River, and Shenandoah River in western VA has been recognized since 1977. Flooding has
Modeling mercury biomagnification (South River, Virginia, USA) to inform river management decision making
TLDR
Trophic models based on delta(15)N were adequate for predicting changes in mercury concentrations in edible fish under different remediation scenarios.
Mercury Concentrations in Bicknell’s Thrush and Other Insectivorous Passerines in Montane Forests of Northeastern North America
TLDR
The finding of a correlation between regional litterfall Hg flux patterns and Bicknell’s thrush blood Hg concentrations demonstrates on-site availability of MeHg, and is recommended to assess risk to insectivorous passerines, particularly the Bicarus bicknelli.
Food Web Magnification of Persistent Organic Pollutants in Poikilotherms and Homeotherms from the Barents Sea
TLDR
Concentrations of lipophilic and persistent organochlorines were orders of magnitude higher in homeotherms than in poikilotherms, with the highest food web magnification factors (FWMFs) for cis-chlordane and p,p‘-DDE.
The effects of experimental reservoir creation on the bioaccumulation of methylmercury and reproductive success of tree swallows (Tachycineta bicolor).
TLDR
Although MeHg burdens in swallows were elevated in postflood years, it was found no overt toxicological affects and an increase in dipteran productivity after reservoir creation resulted in earlier nest initiation, larger eggs, and faster growth rates of wing and bill length in nestlings raised during post flood years.
Influence of chemical and biological factors on trophic transfer of persistent organic pollutants in the northwater polynya marine food web.
TLDR
Results of this study show the utility of using delta 15N to characterize trophic level andtrophic transfer of POPs but highlight the effects of species and chemical differences on trophIC transfer of Pops that can be overlooked when a single magnification factor is applied to an entire food web.
The Influence of Trophic Level as Measured by δ15N on Mercury Concentrations in Freshwater Organisms
The relationship between mercury (Hg) concentrations in freshwater biota and trophic position, as defined by stable nitrogen isotope ratios (δ15N), was examined in 6 lakes in northwestern Ontario.
Modelling food chain structure and contaminant bioaccumulation using stable nitrogen isotopes
THE nitrogen pools of animals are enriched in 15N relative to their food1, with the top predators having the highest concentrations of this stable isotope2. The use of δ15N to indicate trophic
The Movement of Aquatic Mercury Through Terrestrial Food Webs
TLDR
It is concluded that aquatic mercury pollution can move into terrestrial habitats, where it biomagnifies to levels in songbirds that may cause adverse effects, and is a threat to the many bird species that feed on predatory invertebrates in adjacent riparian habitats.
Effects of Environmental Methylmercury on the Health of Wild Birds, Mammals, and Fish
Abstract Wild piscivorous fish, mammals, and birds may be at risk for elevated dietary methylmercury intake and toxicity. In controlled feeding studies, the consumption of diets that contained Hg (as
...
1
2
3
...