EROD activity measured in flatfish from the area of the Sea Empress oil spill

Dab ( Limanda limanda) and plaice ( Pleuronectes platessa) were collected at five stations near to the site of the Sea Empress oil spill within two weeks of the incident and a further fourteen stations three months after the spillage. Ethoxyresorufin-O-deethylase (EROD) activity was determined in th...

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Bibliographic Details
Published in:Chemosphere (Oxford) 1999-05, Vol.38 (12), p.2929-2949
Main Authors: Kirby, Mark F., Neall, Paula, Tylor, Tina
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal, plant and microbial ecology
Animals
Applied ecology
Biological and medical sciences
Cytochrome P-450 CYP1A1 - metabolism
Dab ( Limanda limanda)
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Environmental Monitoring
Environmental Pollution
EROD
Female
Flatfishes - metabolism
Flounder - metabolism
Fundamental and applied biological sciences. Psychology
Limanda limanda
Male
monitoring
oil spill
Petroleum - toxicity
plaice ( Pleuronectes platessa)
Pleuronectes platessa
Sea Empress
Sex Factors
Water Pollutants, Chemical - toxicity
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Summary:Dab ( Limanda limanda) and plaice ( Pleuronectes platessa) were collected at five stations near to the site of the Sea Empress oil spill within two weeks of the incident and a further fourteen stations three months after the spillage. Ethoxyresorufin-O-deethylase (EROD) activity was determined in the livers of the specimens to determine whether induction could be detected. Statistically significant inter-site differences in EROD levels in both species were demonstrated. Elevated levels of EROD activity in dab were found at the two stations nearest to the incident up to three months after the spill but no clear relationship to putative contaminant levels was determined. EROD levels in plaice showed a generally similar pattern of induction as in dab. Correlation of EROD levels with other variables showed that sexual maturity had the greatest influence on dab during the study period. The plaice specimens were sexually immature and, therefore, did not demonstrate a corresponding relationship. It was concluded that, for EROD monitoring purposes, fish should be sampled during their sexually inactive phase and that close attention needs to be paid to other variables (depth, temperature, GSI, length, influential contaminants etc.) when interpreting the results.
ISSN:0045-6535
1879-1298
DOI:10.1016/S0045-6535(98)00484-6