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Environ Sci Pollut Res Int
2019 Jul 01;2621:21363-21370. doi: 10.1007/s11356-019-05303-x.
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Organotropism of total mercury (THg) in Cichla pinima, ecological aspects and human consumption in fish from Amazon region, Brazil.
de Souza Azevedo J
,
Hortellani MA
,
de Souza Sarkis JE
.
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Specimens of the Cichla pinima are of ecological and economic importance in the Amazon region and are a good bioindicator species of Hg bioaccumulation. Adult specimens of Cichla pinima were obtained by fisheries in the Tapajós river region''s impacted gold mining area. Tissues such as muscle, liver, skin, and gill were submitted for total mercury (THg) analysis. For hepatic bioavailability, assays were carried out in the whole liver and in the sub-cellular hepatic fraction. The weight-length relationship showed an equation of W = 2E - 06L3.3002 (R2 = 0.856) indicating an allometric growth. The mean THg values found in the muscle tissue of 676 ± 258 μg kg-1 were below the maximum limit established for human consumption, but were similar to Cichla fish from other areas impacted by Hg in the Amazon region. The trends of levels in the tissues were as follows: liver>muscle>gonads>skin>gill, with no significant differences between the gills and skin. A significant and positive correlation as rs = 0.65 was obtained between the THg contents in cytosolic fraction and the total hepatic THg (liver homogenate). However, only 7% of the THg were found and were available to the sub-cellular hepatic fraction. This profile can be an indicative of a hepatic cellular transference in fish exposed to high Hg levels in the Amazon region now that low concentrations of Hg have been found in the sub-cellular fraction. However, data of differential THg partition in the subcellular compartments should be considered, since others'' hepatic fractions can act in the Hg linkage into the cell.
Araújo,
The sub-cellular fate of mercury in the liver of wild mullets (Liza aurata)--Contribution to the understanding of metal-induced cellular toxicity.
2015, Pubmed
Araújo,
The sub-cellular fate of mercury in the liver of wild mullets (Liza aurata)--Contribution to the understanding of metal-induced cellular toxicity.
2015,
Pubmed
Azevedo,
Biomarkers of exposure to metal contamination and lipid peroxidation in the benthic fish Cathorops spixii from two estuaries in South America, Brazil.
2009,
Pubmed
Azevedo-Silva,
Mercury biomagnification and the trophic structure of the ichthyofauna from a remote lake in the Brazilian Amazon.
2016,
Pubmed
Barbosa,
Hair mercury speciation as a function of gender, age, and body mass index in inhabitants of the Negro River basin, Amazon, Brazil.
2001,
Pubmed
Barbosa,
Mercury biomagnification in a tropical black water, Rio Negro, Brazil.
2003,
Pubmed
Bastos,
Mercury in fish of the Madeira river (temporal and spatial assessment), Brazilian Amazon.
2015,
Pubmed
Bastos,
Sex-related mercury bioaccumulation in fish from the Madeira River, Amazon.
2016,
Pubmed
Berzas Nevado,
Mercury in the Tapajós River basin, Brazilian Amazon: a review.
2010,
Pubmed
Castilhos,
Bioaccumulation of mercury by Tucunaré (Cichla ocellaris) from Tapajós River region, Brazilian Amazon: a field dose-response approach.
2001,
Pubmed
Clarkson,
The toxicology of mercury.
1997,
Pubmed
Dias,
[Total mercury in muscle of the shark Prionace glauca (Linnaeus, 1758) and swordfish Xiphias gladius Linnaeus, 1758, from the South-Southeast coast of Brazil and the implications for public health].
2008,
Pubmed
Fadini,
Is the Negro River Basin (Amazon) impacted by naturally occurring mercury?
2001,
Pubmed
Fréry,
Gold-mining activities and mercury contamination of native amerindian communities in French Guiana: key role of fish in dietary uptake.
2001,
Pubmed
Gomiero,
Feeding of introduced species of Cichla (Perciformes, Cichlidae) in Volta Grande reservoir, River Grande (MG/SP).
2004,
Pubmed
Gomiero,
Reproduction of Cichla kelberi Kullander and Ferreira, 2006 introduced into an artificial lake in southeastern Brazil.
2009,
Pubmed
Hacon,
An overview of mercury contamination research in the Amazon basin with an emphasis on Brazil.
2008,
Pubmed
Luiz,
Diet, reproduction and population structure of the introduced Amazonian fish Cichla piquiti (Perciformes: Cichlidae) in the Cachoeira Dourada reservoir (Paranaíba River, central Brazil).
2011,
Pubmed
Tao,
Fish uptake of inorganic and mucus complexes of lead.
2000,
Pubmed
Vieira,
Mercury, cadmium, lead and arsenic levels in three pelagic fish species from the Atlantic Ocean: intra- and inter-specific variability and human health risks for consumption.
2011,
Pubmed
Wasserman,
Biogeochemistry of mercury in the Amazonian environment.
2003,
Pubmed
dos Santos,
Evaluation of total mercury concentrations in fish consumed in the municipality of Itaituba, Tapajós River Basin, Pará, Brazil.
2000,
Pubmed
