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Biomarker responses in Atlantic cod (Gadus morhua) exposed to produced water from a North Sea oil field: Laboratory and field assessments
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2012 (English)In: Marine Pollution Bulletin, ISSN 0025-326X, E-ISSN 1879-3363, Vol. 64, no 1, 144-152 p.Article in journal (Refereed) Published
Abstract [en]

Biological markers of produced water (PW) exposure were studied in Atlantic cod (Gadus morhua) in both laboratory and field experiments, using authentic PW from a North Sea oil field. In the laboratory study, the PW exposure yielded significantly elevated levels of metabolites of polycyclic aromatic hydrocarbons (PAHs) and alkylphenols (APs) in bile even at the lowest exposure dose (0.125% PW). Other biomarkers (hepatic CYP1A induction and DNA adduct formation) responded at 0.25% and 0.5% PW concentrations. In the field study, bile metabolite markers and hepatic CYP1A were clearly increased in fish caged close to the PW outfall. Induction of plasma vitellogenin was not found in laboratory or field exposures, suggesting that the levels of oestrogen agonists (such as APs) might not have been sufficient to elicit induction, under the present conditions. The applicability of the biomarkers for use in water column biomonitoring programs is discussed.

Place, publisher, year, edition, pages
2012. Vol. 64, no 1, 144-152 p.
Keyword [en]
Produced water, Oil pollution, Alkylphenol, PAHs, Atlantic cod, Biomarkers
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-76764DOI: 10.1016/j.marpolbul.2011.10.005ISI: 000299981100032OAI: oai:DiVA.org:su-76764DiVA: diva2:527124
Note
8Available from: 2012-05-16 Created: 2012-05-16 Last updated: 2017-12-07Bibliographically approved

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