New Evaluation of Selenium: Mercury Ratios in Fish and Crabs from an Impacted Tropical Estuary, Southeastern Brazil

Alice Bosco Santos and Wanilson Luiz Silva
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Wanilson Luiz Silva: Department of Geology and Natural Resources, University of Campinas, USA

International Journal of Environmental Sciences & Natural Resources, 2017, vol. 2, issue 3, 90-93

Abstract: Large variations in the Se:Hg molar ratios and their high elemental concentrations in different tissues from fish and crabs species was observed and deserves attention due to potential risky for wildlife. The results suggested that Se protection against Hg toxicity decrease as the size of specimen’s increases and that the protective effect has a close relation with diet and grow pattern, notably for fish. This study showed that although strictly carnivorous eating habits may easily lead to Hg bioaccumulation, some species can present highest concentration of the contaminant in a less sensitive tissue, in terms of minimize adverse toxic effects..

Keywords: earth and environment journals; environment journals; open access environment journals; peer reviewed environmental journals; open access; juniper publishers; ournal of Environmental Sciences; juniper publishers journals; juniper publishers reivew (search for similar items in EconPapers)
JEL-codes: R00 Z0 (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:adp:ijesnr:v:2:y:2017:i:3:p:90-93

DOI: 10.19080/IJESNR.2017.02.555588

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