2012
DOI: 10.15343/0104-7809.2012364635642
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Análise da ocorrência de metais: Ni, Zn, Cu, Pb e Cd em ostras (Crassostrea brasiliana) e sedimentos coletados no Estuário de Cananeia-SP (Brasil)

Abstract: ResumoO objetivo deste estudo foi avaliar as concentrações dos elementos traços, tais como: cádmio, chumbo, cobre, zinco e níquel no sedimento e em ostras da espécie Crassostrea brasiliana (molusco bivalve bastante abundante e de grande valor econômico para região) e tendo em consideração que a escolha destes compartimentos da natureza podem refletir condições pontuais do ambiente e, a partir de então, diagnosticar a qualidade para cultivo nesta região, em especial em relação à seguridade alimentar e, ainda, p… Show more

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Cited by 16 publications
(20 citation statements)
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“…The soft tissue was dried in an air-circulation oven at 60 o C, until constant mass was achieved. The process of opening with microwaves followed a procedure used by Barros & Barbieri (2012), which consisted on the addition of 10 mL of pure supra HNO 3 to 0.5 g of mussel tissue, with subsequent heating at 60 o C for two hours, for destruction of resistant fats. The opening solutions were transferred to a 50 mL volumetric flask, and completed to final volume with ultrapure water.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The soft tissue was dried in an air-circulation oven at 60 o C, until constant mass was achieved. The process of opening with microwaves followed a procedure used by Barros & Barbieri (2012), which consisted on the addition of 10 mL of pure supra HNO 3 to 0.5 g of mussel tissue, with subsequent heating at 60 o C for two hours, for destruction of resistant fats. The opening solutions were transferred to a 50 mL volumetric flask, and completed to final volume with ultrapure water.…”
Section: Methodsmentioning
confidence: 99%
“…The retention and absorption of lead in the digestive tract of mollusks are linked to several factors that should be considered, such as salinity, hygroscopicity, concentration, larval phase, respiratory rate, and duration of exposure (Barbieri, 2009a(Barbieri, , 2009bBarros & Barbieri, 2012). The effect of lead on mussels decreases food absorption, negatively affecting the energy flow of the animal metabolism (Wang et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…Bivalve are filtering organisms which feed on the particles and microalgae which are found in the water and which accumulate in their tissues, including large quantities of organic and inorganic substances, as well as the microorganisms present in the environment, thus acting as bioindicators of unhealthy quality of the water (Pereira et al, 2003;Barros and Barbieri, 2012). It was for this purpose that we studied the sedimentation dynamics because this factor can determine the distribution of oysters in the ELCCI.…”
Section: Salinitymentioning
confidence: 99%
“…Para efeitos deste trabalho, optou-se por trabalhar com a C. brasiliana, que é de distribuição mais ampla no estuário e tolera uma variação maior de salinidade (Galvão et al, 2000). Devido à sua alta capacidade de filtração durante o processo de alimentação, as ostras podem acumular bactérias, metais pesados, organoclorados, bem como outros poluentes nos tecidos, caso o ambiente sofra algum tipo de ação antrópica poluidora (Barros & Barbieri, 2012;Doi et al, 2014;Reigala et al, 2014), justificando, assim, a necessidade de um bom planejamento e controle sanitário das áreas de cultivo. O aumento da atividade de maricultura sem planejamento pode ocasionar diversos riscos ao ambiente e à saúde humana, pelo simples fato de os cultivos serem realizados na ausência, principalmente, de um sistema eficaz de monitoramento da qualidade das águas.…”
Section: Introductionunclassified