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Type: Journal article
Title: Levels of polychlorinated biphenyls (PCB) and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) in fillets of farmed Southern Bluefin Tuna (Thunnus maccoyii)
Author: Phua, S.
Ashman, P.
Daughtry, B.
Citation: Chemosphere, 2008; 73(6):915-922
Publisher: Pergamon-Elsevier Science Ltd
Issue Date: 2008
ISSN: 0045-6535
Statement of
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
Thunnus maccoyii
Blank correction
DOI: 10.1016/j.chemosphere.2008.07.001
Appears in Collections:Aurora harvest
Chemical Engineering publications
Environment Institute publications

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