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Bioaccumulation of Polycyclic Aromatic Hydrocarbons in Gilthead Sea Bream (Sparus aurata L.) Exposed to Long Term Feeding Trials with Different Experimental Diets

AuthorsNácher-Mestre, Jaime; Serrano, Roque; Benedito-Palos, Laura ; Navarro, Juan Carlos ; López, Francisco J.; Kaushik, Sadasivam; Pérez-Sánchez, Jaume
KeywordsPolycyclic aromatic hydrocarbon
Sea bream
Fish oils
Water pollutants
Issue DateJul-2010
CitationArchives of environmental contamination and toxicology 59(1): 137-146 (2010)
AbstractPolycyclic aromatic hydrocarbons (16 EPA list) were determined in oils, fish feed, and fillets from gilthead sea bream fed through a full production cycle (14 months) with feed containing different proportions of fish oil replaced by vegetable oils, followed by a finishing phase with fish oil. At the beginning of the study, fish presented 46.6 μg/kg fresh weight of the sum of PAHs in fillet and a benzo[a]pyrene equivalent value of 9.1 μg/kg fresh weight. These levels decreased after 330 days of rearing to values around 2 μg/kg. Although the concentration increased again during the finishing phase, they remained low. These low concentrations of PAHs could be the result of a dilution process associated with fish growth and with the detoxification pathways, both favored by the low levels of PAHs present in the feeds and the lack of any other potential source of contamination during the whole rearing period.
Description22 p., figuras, tablas y bibliografía
Publisher version (URL)http://dx.doi.org/10.1007/s00244-009-9445-1
Appears in Collections:(IATS) Artículos
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