Seasonal effect on biomarkers of exposure to petroleum hydrocarbons in fish from Kuwait's marine area
| Autor: | M. U. Beg, Noura Al-Jandal, S. Al-Subiai, M. Al-Husaini, S. A. Butt, K. R. Beg |
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| Rok vydání: | 2014 |
| Předmět: |
Acanthopagrus latus
Aquatic Science Oceanography Ecotoxicology Petroleum Pollution Fluorescence Petroleum product Cytochrome P-450 Enzyme System Cytochrome P-450 CYP1A1 Animals Bile Polycyclic Aromatic Hydrocarbons chemistry.chemical_classification biology business.industry Ecology Environmental exposure Environmental Exposure biology.organism_classification Pollution Sea Bream Hydrocarbon Petroleum chemistry Kuwait Environmental chemistry Flatfishes Seasons business Bioindicator Bay Biomarkers Water Pollutants Chemical |
| Zdroj: | Marine pollution bulletin. 100(2) |
| ISSN: | 1879-3363 |
| Popis: | The aquatic biota of the Arabian Gulf deals with exposure to chronic oil pollution, several constituents of which cause induction of Cytochrome P450 1A that serves as a biomarker of AhR ligand exposure. In this study, fluorescent aromatic compounds (FACs) in bile and 7-ethoxyresorufin-o-deethylase (EROD) catalytic activity were determined as a measure of exposure biomarkers in two fish species, yellow fin seabream (Acanthopagrus latus) and tonguesole (Cynoglossus arel) captured from Kuwait Bay and outside the Bay area. FACs in fish bile determined by using fixed-wavelength fluorescence (FF) showed high fluorescence ratios between FF290/335 and FF380/430 indicating predominant exposure to low molecular weight, naphthalene-rich petroleum products (375±91.0 pg ml(-1)). Exposures to benzo(a)pyrene-type high-molecular weight polycyclic aromatic hydrocarbons (PAHs) originating from burnt fuel were also present in appreciable concentration in the bile. The ratio of petrogenic to pyrogenic hydrocarbon was twofold higher in winter compared to summer months in both species. Seasonal effect on EROD was significant in tonguesole in Auha site (P |
| Databáze: | OpenAIRE |
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