Bioaccumulation of total mercury (THg) in catfish (Siluriformes, Ariidae) with different sexual maturity from Cananéia-Iguape estuary, SP, Brazil
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Bulletin of Environmental Contamination and Toxicology
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In order to improve the knowledge of total mercury (THg) bioaccumulation in bioindicator species of sea catfish (Siluriformes,
Ariidae) and taking into account the relatively recent approach with respect to estuarine fish on the Brazilian coast,
65 individuals were caught in the northern and southern regions of the Cananeia estuary to determine the concentration of
the THg in muscles, gills, gonads and kidney of the Cathorops spixii and Genidens genidens specimens. The difference in
the THg accumulation associated to the maturity of the catfish reflects a differential metabolism regarding THg bioaccumulation
in adults (males and females) and juveniles. These observations reinforce the importance of considering the maturity of
the individual in order to understand the bioaccumulation and metabolism of fish under different environmental stress and
conditions. Furthermore, abiotic conditions such as salinity should be evaluated in association with metabolic/biological
conditions of the fish’s bioindicators, especially in environments with large natural or anthropogenic transition gradients.
Como referenciar
PECORARO, GIULLIANA D.; HORTELLANI, MARCOS A.; HAGIWARA, YURI S.; BRAGA, ELISABETE S.; SARKIS, JORGE E.; AZEVEDO, JULIANA S. Bioaccumulation of total mercury (THg) in catfish (Siluriformes, Ariidae) with different sexual maturity from Cananéia-Iguape estuary, SP, Brazil. Bulletin of Environmental Contamination and Toxicology, v. 102, n. 2, p. 175-179, 2019. DOI: 10.1007/s00128-018-2485-3. Disponível em: http://repositorio.ipen.br/handle/123456789/29957. 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.