Determination of cadmium and lead in cetacean Dolphinidae tissue from the coast of Bahia state in Brazil by GFAAS

Korn, Maria das Graças Andrade; Santos, Gabriel Luiz dos; Rosa, Suzana M.; Teixeira, Leonardo Sena Gomes; Oliveira, Pedro Vitoriano de

doi:10.1016/j.microc.2010.01.001

Cited by 33 publications

(16 citation statements)

References 30 publications

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“…Values lower than 0.1µg.g -1 of cadmium in Guiana dolphin tissues have been previously reported by Lailson-Brito et al (2000), Monteiro-Neto et al (2003), Kunito et al (2004), Dorneles et al (2007a), Seixas et al (2009) and Korn et al (2010).…”

Section: Discussionsupporting

confidence: 52%

“…Additionally, metals concentrations between studies can vary depending on various factors that affect the accumulation of metals in aquatic mammals (Seixas et al, 2009;Korn et al, 2010). The studied element and its availability in the environment, as well as the habit and feeding habits of the specie, play a fundamental role in this accumulation (André, 1997;Das et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

“…The accumulation of the element by marine mammals is much more related to intake of cephalopods, which are known for their capacity of accumulating high contents of cadmium in their bodies, than an accumulation along the food chain (Lailson-Brito et al, 2000;Dorneles et al, 2007;Carvalho et al, 2008). Thus, species of cetacean that have squids as their predominant food item have higher concentrations of the metal when compared to species that feed especially on fish (Das et al, 2003;Seixas et al, 2009;Korn et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

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Cadmium concentrations in Sotalia guianensis (Van Bénéden, 1864) in a tropical estuary, southeast of Brazil.

Salgado

Neto

Filla

2016

Braz. J. Aquat. Sci. Technol.

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Cadmium concentrations were assessed in the hepatic tissues of 27 Guiana dolphins, Sotalia guianensis, that were found stranded in the estuary of Cananéia-Iguape, southeast of Brazil, between 2009 and 2012. The samples' digestion was performed through acid digestion with HNO 3 and the quantification was held by flame atomic absorption spectrometry (FAAS). For 11 of the sampled animals, concentrations did not exceed the limit of quantification of 0.1µg.g -1 stipulated by the method. The concentrations varied from above detection limit to 1.79µg.g -1 (wet weight), for a average of 0.39µg.g -1 which is in accord with the literature, as low values of the metal were commonly found in the tissues of the specie on the Brazilian coast. No differences were observed in the accumulation of cadmium between sexes, age classes or the curvilinear length. The accumulation found in the livers may reflect the Guiana dolphins diet in the region and the bioavailability of the metal in the system. This study provides new data about the accumulation of cadmium in animals of the Brazilian coast, contributing towards the status of conservation of the specie.

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Section: Discussionsupporting

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Cadmium concentrations in Sotalia guianensis (Van Bénéden, 1864) in a tropical estuary, southeast of Brazil.

Salgado

Neto

Filla

2016

Braz. J. Aquat. Sci. Technol.

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“…Heavy metals that enter water bodies through effluent discharge or which are carried by rainwater accumulate in aquatic organisms and transfer to humans through feeding (Korn, Santos, Rosa, Teixeira, & Oliveira, 2010). There are organs which are important in helping to determine the bioaccumulation of metals in fish, such as the liver (Licata et al, 2005), which plays a vital role in metabolism, biotransformation and excretion of contaminants in fish, and is one of the largest organs (Figueiredo-Fernandes, FontainhasFernandes, Monteiro, Reis-Henriques, & Rocha, 2006).…”

Section: Introductionmentioning

confidence: 99%

<b>Heavy metal bioaccumulation of the characiform <i>Brycon falcatus</i> Muller & Troschel, 1844 in the Teles Pires basin, Southern Amazon

Matos

Silva

et al. 2016

Acta Sci. Biol. Sci.

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ABSTRACT. The Teles Pires River basin is located in an area of the Southern Amazon where discharge of tannery effluents and intense agricultural activity occurs. These activities increase the risk of contamination by runoff and leaching of pesticides and heavy metals. This study presents the concentration and bioaccumulation of heavy metals copper (Cu) and total chromium (Cr) in matrinxã (Brycon falcatus), a species of fish highly consumed in the region. Liver and muscle tissue was analyzed from 41 samples of B. falcatus collected during the dry season in 2013 from the Teles Pires River basin. Considering that bioaccumulation is the progressive increase in the amount of a substance in an organism or part of an organism, copper bioaccumulation in liver samples from B. falcatus was verified. Cr and Cu concentrations were higher in the liver than in the muscle tissue of fish collected in all rivers. The highest concentrations of Cr in the liver were observed in fish collected from the Teles Pires River (1.87 μg·g RESUMO. Na Amazônia Meridional a bacia do rio Teles Pires está numa área onde existe despejo de efluentes de curtumes e intensa atividade agrícola, aumentando o risco de lixiviação e escoamento de defensivos agrícolas e metais pesados. Este estudo apresenta a concentração e bioacumulação de metais pesados, cobre (Cu) e cromo (Cr) total no matrinxã, Brycon falcatus, uma espécie de peixe muito consumida regionalmente. Analisamos o fígado e tecido muscular de 41 exemplares de B. falcatus coletados durante a estação seca de 2013 na bacia do rio Teles Pires. Considerando que bioacumulação é o aumento progressivo na quantidade de uma substância em um organismo ou parte deste, verificamos bioacumulação de cobre nas amostras de fígado de B. falcatus. As concentrações de Cr e Cu foram maiores no fígados do que no músculo dos peixes nos rios coletados. As maiores concentrações de Cr no fígado foram observadas nos peixes coletados no rio Teles Pires (1,87 μg·g -1

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“…The pollutants accumulated by aquatic inhabitants (especially fish) subsequently transferred to humans through the food chain [15,16] and it is generally accepted that consumption of fish and seafood is a major source of arsenic exposure for humans [17]. Because of high protein content and low saturated fats containing omega fatty acids and supporting good health and protecting the body against cardiovascular diseases, contaminated fish represent a serious food safety concern across the globe [18].…”

mentioning

confidence: 99%

Arsenic and Other Trace Elements in Five Edible Fish Species in Relation to Fish Size and Weight and Potential Health Risks for Human Consumption

Milošković¹,

Simić²

2015

Pol. J. Environ. Stud.

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Determination of cadmium and lead in cetacean Dolphinidae tissue from the coast of Bahia state in Brazil by GFAAS

Cited by 33 publications

References 30 publications

Cadmium concentrations in Sotalia guianensis (Van Bénéden, 1864) in a tropical estuary, southeast of Brazil.

Cadmium concentrations in Sotalia guianensis (Van Bénéden, 1864) in a tropical estuary, southeast of Brazil.

<b>Heavy metal bioaccumulation of the characiform <i>Brycon falcatus</i> Muller & Troschel, 1844 in the Teles Pires basin, Southern Amazon

Arsenic and Other Trace Elements in Five Edible Fish Species in Relation to Fish Size and Weight and Potential Health Risks for Human Consumption

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