Northwest Fisheries Science Center

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Document Type: Journal Article
Center: NWFSC
Document ID: 4605
Title: Evaluation of Polycyclic Aromatic Hydrocarbons bioavailability on Santos Bay (Brazil) through biliary metabolites concentrations
Author: A. C.R. Albergaria-Barbosa, Denis A.M. da Silva, A. J.S. Rocha, S. Taniguchi, J. F. Dias, V. F. Patire, W. S. Fernandez, R. C.L. Figueira, M. C. Bicego
Publication Year: In press
Journal: Marine Pollution Bulletin
Abstract:

Marine environments near urbanized areas are subjected to contaminant inputs, such as polycyclic aromatic hydrocarbons (PAHs). The bioavailability of this class of compound can be evaluated through biomarkers. This study evaluated bioavailability of PAHs from Santos Bay in 4 species of fish, through the use of PAH biliary metabolites, and 7-ethoxyresorufin-O-deethylase activity (EROD) as a complementary analysis. Metabolites were measured by high performance liquid chromatography coupled to fluorescence detectors. The range of total metabolites and EROD was, respectively, 65.5 to 589 µg g-1 of bile and 6.88 to 262 pmol min-1 mg-1 of protein, evidencing PAHs bioavailability on Santos Bay. Levels of phenanthrene and benzo[a]pyrene metabolites were lower in Nebris microps and higher in Sphoeroides testudineus. Mean naphthalene metabolite concentrations did not differ significantly among fish species. There were no significant spatial and temporal differences in levels among sampled areas. These results are environmentally important given the high levels of urbanization in this area.

 

Theme: Sustaining Marine Ecosystem and Human Health
Foci: Ensure safe and sustainable seafood for healthy populations.
Ensure safe and sustainable seafood for healthy populations.