Hepatic and nephric mercury and selenium concentrations in common mergansers, mergus merganser, from baltic region, Europe. Kalisinska, E., Gorecki, J., Okonska, A., Pilarczyk, B., Tomza-Marciniak, A., Budis, H., Lanocha, N., Kosik-Bogacka, D., I., Kavetska, K., M., Macherzynski, M., & Golas, J. Environmental Toxicology and Chemistry, 33(2):421-430, 2014. abstract bibtex The subject of the present study was the piscivorous common mergansers (Mergus merganser). The total mercury (THg), methylmercury (MeHg), selenium (Se) inorganic mercury (InHg; THg - MeHg), percentage of THg that is MeHg (%MeHg), molar ratios (THg:Se, MeHg:Se, InHg:Se), and their mutual relations in livers and kidneys were determined in ducks from an Se-deficient area in Poland. The authors verified a hypothesis that, as a result of living in an Se-deficient region, mergansers from Poland should have higher THg:Se ratios than other waterbirds with similar THg tissue levels. Although a comparison of healthy mergansers from Poland and Canada showed similar THg tissue contents, the group in the present study had a few times lower Se levels and higher THg:Se ratios (overall means >1.7 in both livers and kidneys in all studied individuals) than the Canadian group and other European and North American waterbirds. The authors found significant correlations between various relations, including MeHg-THg, InHg-THg, Se-THg, %MeHg-THg, InHg/%THg-THg, %MeHg/THg-InHg, %InHg/THg-InHg, MeHg:Se-THg:Se, InHg:Se-THg:Se, InHg:Se-MeHg:Se in liver and InHg-THg, Se-THg, Se-InHg, %MeHg-THg, %MeHg-InHg, %InHg/THg-InHg, THg:Se-THg, InHg:Se-THg, MeHg:Se-MeHg, THg:Se-InHg, InHg:Se-InHg, and InHg:Se-THg:Se in kidney. It is likely that the main factor responsible for the high value of THG:Se ratio (>1) in mergansers from Poland is Se deficiency in central and northern Europe. Therefore, this element is unlikely to participate in the detoxification of Hg in these birds.
@article{
title = {Hepatic and nephric mercury and selenium concentrations in common mergansers, mergus merganser, from baltic region, Europe},
type = {article},
year = {2014},
identifiers = {[object Object]},
keywords = {Bird,Common mergansers,Mercury,Methylmercury,Selenium},
pages = {421-430},
volume = {33},
id = {0621044e-d369-348a-995d-71c45c038c55},
created = {2018-01-23T21:10:33.478Z},
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group_id = {3addd0f7-d578-34d3-be80-24022cc062a1},
last_modified = {2018-01-23T21:10:38.745Z},
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confirmed = {true},
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abstract = {The subject of the present study was the piscivorous common mergansers (Mergus merganser). The total mercury (THg), methylmercury (MeHg), selenium (Se) inorganic mercury (InHg; THg - MeHg), percentage of THg that is MeHg (%MeHg), molar ratios (THg:Se, MeHg:Se, InHg:Se), and their mutual relations in livers and kidneys were determined in ducks from an Se-deficient area in Poland. The authors verified a hypothesis that, as a result of living in an Se-deficient region, mergansers from Poland should have higher THg:Se ratios than other waterbirds with similar THg tissue levels. Although a comparison of healthy mergansers from Poland and Canada showed similar THg tissue contents, the group in the present study had a few times lower Se levels and higher THg:Se ratios (overall means >1.7 in both livers and kidneys in all studied individuals) than the Canadian group and other European and North American waterbirds. The authors found significant correlations between various relations, including MeHg-THg, InHg-THg, Se-THg, %MeHg-THg, InHg/%THg-THg, %MeHg/THg-InHg, %InHg/THg-InHg, MeHg:Se-THg:Se, InHg:Se-THg:Se, InHg:Se-MeHg:Se in liver and InHg-THg, Se-THg, Se-InHg, %MeHg-THg, %MeHg-InHg, %InHg/THg-InHg, THg:Se-THg, InHg:Se-THg, MeHg:Se-MeHg, THg:Se-InHg, InHg:Se-InHg, and InHg:Se-THg:Se in kidney. It is likely that the main factor responsible for the high value of THG:Se ratio (>1) in mergansers from Poland is Se deficiency in central and northern Europe. Therefore, this element is unlikely to participate in the detoxification of Hg in these birds.},
bibtype = {article},
author = {Kalisinska, Elzbieta and Gorecki, Jerzy and Okonska, Anna and Pilarczyk, Bogumila and Tomza-Marciniak, Agnieszka and Budis, Halina and Lanocha, Natalia and Kosik-Bogacka, Danuta I. and Kavetska, Katarzyna M. and Macherzynski, Mariusz and Golas, Janusz},
journal = {Environmental Toxicology and Chemistry},
number = {2}
}
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