کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5766226 | 1627558 | 2017 | 15 صفحه PDF | دانلود رایگان |
- Five different species exposed to sub-lethal concentrations of dispersed crude oil.
- Biomarker threshold values for environmental monitoring and ERA.
- Selection of biomarkers that can be used to the establishment of biomarker based SSDs.
- Responsive biomarkers showed dose dependant response (LOEC value determination).
- LOEC values will contribution to the establishment of biomarker based SSDs.
The aim of this study was to determine a suitable set of biomarker based methods for environmental monitoring in sub-arctic and temperate offshore areas using scientific knowledge on the sensitivity of fish species to dispersed crude oil. Threshold values for environmental monitoring and risk assessment were obtained based on a quantitative comparison of biomarker responses. Turbot, halibut, salmon and sprat were exposed for up to 8 weeks to five different sub-lethal concentrations of dispersed crude oil. Biomarkers assessing PAH metabolites, oxidative stress, detoxification system I activity, genotoxicity, immunotoxicity, endocrine disruption, general cellular stress and histological changes were measured. Results showed that PAH metabolites, CYP1A/EROD, DNA adducts and histopathology rendered the most robust results across the different fish species, both in terms of sensitivity and dose-responsiveness. The reported results contributed to forming links between biomonitoring and risk assessment procedures by using biomarker species sensitivity distributions.
Journal: Marine Environmental Research - Volume 125, April 2017, Pages 10-24