Effects of contaminated sediment from Cork Harbour, Ireland on the cytochrome P450 system of turbot

M Kilemade, Mark Hartl, J O'Halloran, N O'Brien, D Sheehan, C Mothersil, F N A M van Pelt

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    11 Citations (Scopus)

    Abstract

    Hatchery-reared juvenile turbot (Scophthalmus maximus L.) were exposed for 3 weeks, under laboratory conditions, to inter-tidal sediments collected from polluted sites in Cork Harbour (Whitegate and Agahda) and a reference site at Ballymacoda Co., Cork, Ireland. The potential of the sediment exposure to induce cytochrome P450 activities and CYP1A1 in the fish was assessed. Chemical analysis revealed that the sediments originating from the reference and harbour sites were contaminated principally with PAHs-the harbour sites having double the levels of those at the reference site. Following 3 weeks exposure to the sediments western blotting demonstrated a strong immunogenic response for CYP1A1 in the liver, but not for gill or intestine. P450 activities were generally significantly higher than those exposed to reference site sediment. Liver was the most responsive tissue with significantly greater P450 activities compared with gill and intestinal tissues. © 2008 Elsevier Inc. All rights reserved.

    Original languageEnglish
    Pages (from-to)747-755
    Number of pages9
    JournalEcotoxicology and Environmental Safety
    Volume72
    Issue number3
    DOIs
    Publication statusPublished - Mar 2009

    Keywords

    • Cork Harbour
    • Cytochrome P450-dependent monooxygenases
    • Inter-tidal sediment
    • PAH
    • Turbot

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