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

• Published in: Archives of environmental contamination and toxicology Vol. 59; no. 1; pp. 137 - 146
• Main Authors: Nácher-Mestre, Jaime, Serrano, Roque, Benedito-Palos, Laura, Navarro, Juan C, López, Francisco J, Kaushik, Sadasivam, Pérez-Sánchez, Jaume
• Format: Journal Article
• Language: English
• Published: New York New York : Springer-Verlag 01.07.2010; Springer-Verlag; Springer; Springer Nature B.V; Springer Verlag
• Subjects: Animal and plant ecology; Animal Feed; Animal, plant and microbial ecology; Animals; Applied ecology; Aquaculture; Bioaccumulation; Biological and medical sciences; Bream; Carcinogens; Chemical spills; Computer Science; Consumption; Contamination; Detoxification; Diet; Earth and Environmental Science; Ecotoxicology; Ecotoxicology, biological effects of pollution; Environment; Environmental Chemistry; Environmental Health; Feeding Methods; Fillets; Finishing; Fish; Fish feeds; Fish oils; Fish Oils - chemistry; Fish Products - analysis; Food chains; Fundamental and applied biological sciences. Psychology; General aspects; Indicator organisms; Ingredients; Life Sciences; Marine; Metabolism; Monitoring/Environmental Analysis; Nutrition research; Pollutants; Pollution; Polyallylamine hydrochloride; Polycyclic aromatic hydrocarbons; Polycyclic Aromatic Hydrocarbons - analysis; Polycyclic Aromatic Hydrocarbons - metabolism; Sea Bream - metabolism; Sea water ecosystems; Seafood; Soil Science & Conservation; Studies; Synecology; Toxicity; Vegetable oils; Water Pollutants, Chemical - metabolism; Water pollution; PAHs; Individual PAHs; Fish Feed; Fish Meal; Fish Fillet; Ecotoxicology; Hydrocarbon; Toxicity; Polycyclic aromatic compound; Experimental study; Long term; Feeding; Marine environment; Persistent organic pollutant; Aquatic environment; Vertebrata; Pollution; Diet; Sparus aurata; Pisces; Environment; Biological accumulation; Organic compounds; DAURADE ROYALE; POLYCYCLIC AROMATIC HYDROCARBON
• ISSN: 0090-4341; 1432-0703
• DOI: 10.1007/s00244-009-9445-1

Polycyclic 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.