Seasonal arsenic in catfish (Siluriformes, Ariidae) and the hydrochemical conditions of two areas in a Ramsar site on the Brazilian coast
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Anais da Academia Brasileira de Ciências
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The construction of a data bank concerning metal and metalloid content
of bioindicator fish from coastal areas is very important as it can help environmental
managers in decision making. In natural conditions, the concentration of elements
can be influenced by abiotic parameters such as water salinity. In this study, catfish
Cathorops spixii were evaluated concerning the total arsenic (As) concentration in the
muscle tissues of individuals subjected to different abiotic conditions in the Cananéia-Iguape Estuarine-Lagoon Complex (CIELC), which was recently included on the Ramsar
list of wetlands of international importance. Seventy-four catfish were seasonally
caught in the northern and southern regions of the CIELC and their hydrochemical
parameters were obtained. C. spixii from the southern, best preserved, area showed
arsenic concentrations around ten times higher than the maximum limit established for
fish intended for human consumption. However, these high concentrations of arsenic
could be associated with the abiotic parameters of the water, such as salinity variations,
in this area.
Como referenciar
AZEVEDO, JULIANA S.; BRAGA, ELISABETE S.; KUNIYOSHI, LEONARDO S.; FAVARO, DEBORAH I.T. Seasonal arsenic in catfish (Siluriformes, Ariidae) and the hydrochemical conditions of two areas in a Ramsar site on the Brazilian coast. Anais da Academia Brasileira de Ciências, v. 95, n. 2, p. 1-11, 2023. DOI: 10.1590/0001-3765202320210033. Disponível em: http://repositorio.ipen.br/handle/123456789/33974. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.