HEPATIC-MICROSOMAL MONOOXYGENASE ACTIVITY AND P450IA MESSENGER-RNA IN NORTH-SEA DAB LIMANDA-LIMANDA FROM CONTAMINATED SITES

被引:19
作者
RENTON, KW [1 ]
ADDISON, RF [1 ]
机构
[1] FISHERIES & OCEANS CANADA, BEDFORD INST OCEANOG, DARTMOUTH B2Y 4A2, NS, CANADA
关键词
D O I
10.3354/meps091065
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Mature pre-spawning female dab Limanda Limanda were sampled during the Bremerhaven Workshop from stations in the southern North Sea along a transect heading approximately NW from the Elbe estuary (the 'German Bight Transect') and around an abandoned drilling site. Hepatic microsomal mono-oxygenase activity as shown by ethoxyresorufin O-deethylase (EROD) and cyanoethoxycoumarin O-deethylase (CN-ECOD) declined with increasing distance offshore, but rose slightly at the outermost station on the Dogger Bank. Microsomal P4501A1 mRNA, detected with a new synthetic oligonucleotide probe, followed the same trend. Activities of EROD and CN-ECOD and concentrations of P4501A1 mRNA were well correlated with the major chlorobiphenyl residues measured in dab and with hydrocarbon concentrations in sediments at these stations. Dab sampled from the drilling site had hepatic EROD and CN-ECOD activity and P4501A1 mRNA contents similar to those in fish from the offshore German Bight stations.
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收藏
页码:65 / 69
页数:5
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