Accumulation and distribution of metals in the tissues of two catfish species from Cananéia and Santos-São Vicente estuaries

Autor(es)

Azevedo, Juliana de Souza ^[1] ; Hortellani, Marcos Antonio ^[1] ; de Souza Sarkis, Jorge Eduardo ^[1]

Afiliação do(s) autor(es)

^[1] Ctr Quim & Meio Ambiente, Inst Pesquisas Energet & Nucl, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Oceanography; v. 60, n. 4, p. 463-472, OCT-DEC 2012.
• Citações Web of Science: 5

Resumo

Pb, Cd, Zn, and Cu concentrations and their distribution in liver, gill, and muscle tissues of the catfish Cathorops spixii and Genidens genidens were investigated in order to provide information concerning the bioaccumulation processes in these species. Fish were collected in one estuary subject to slight human influence (Cananéia) and in two regions within the Santos-São Vicente estuary, São Paulo, Brazil, subject to distinct anthropogenic influences: 1) industrial and 2) domestic. In general, the highest concentrations of Cu, Zn, Cd, and Pb were found in the liver tissue. Muscle showed the lowest values of metal accumulation for all the elements investigated. Regarding the distribution and the metal pollution index (MPI), the levels of the metals analyzed decreased in the following order: liver>gill>muscle. MPI results suggest that gill and liver are important organs to exemplify the bioaccumulation process and are also better able to reflect both recent and chronic exposure to metals. (AU)

• Processo FAPESP: 08/58261-6 - Caracterização e quantificação de metalotioneínas e metais traço por HPLC/HR-ICP MS e RT-PCR em peixes submetidos a contaminação antropogênica: uma abordagem em metalômica
• Beneficiário: Juliana de Souza Azevedo
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado