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|Title:||Levels of polychlorinated biphenyls (PCB) and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) in fillets of farmed Southern Bluefin Tuna (Thunnus maccoyii)|
|Citation:||Chemosphere, 2008; 73(6):915-922|
|Publisher:||Pergamon-Elsevier Science Ltd|
|Samuel T.G. Phua, Peter J. Ashman, Ben J. Daughtry|
|Abstract:||Southern Bluefin Tuna (SBT) (Thunnus maccoyii) is the only farmed tuna species in the southern hemisphere, with production centred offshore of Port Lincoln, South Australia. SBT farming is a quota-based fishery where farmers fatten wild-caught stock for subsequent sale as fresh-chilled or frozen product, mainly to Japanese markets. Fillets from wild-caught and farmed SBT were analysed and the concentration of polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are reported for the first time. Time of farming was separated into two periods: a typical farming period of approximately five months and an experimental scenario that involved holding (farming) these fish for an additional 12 months. WHO-PCB and WHO-PCDD/F TEQ concentrations in fillets on a fresh weight basis at the same times and over the same periods were, 0.67-1.18pg-TEQg(-1) and 0.16-0.29pg-TEQg(-1), respectively. All WHO-PCB congeners, and only three WHO-PCDD/F congeners, were found to biomagnify during farming, after blank correction. Caution should be exercised when extrapolating these results to SBT farming as a whole because of the use of varying husbandry and feeding practices employed by different companies.|
|Keywords:||Southern Bluefin Tuna|
|Appears in Collections:||Aurora harvest|
Chemical Engineering publications
Environment Institute publications
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