Publication details

Organic Pollutant Contamination of the River Tichá Orlice as Assessed by Biochemical Markers

Authors

HAVELKOVÁ Marcela SVOBODOVÁ Zdeňka KOLÁŘOVÁ J. KRIJT J. NÉMETHOVÁ Danka JARKOVSKÝ Jiří POSPÍŠIL R.

Year of publication 2008
Type Article in Periodical
Magazine / Source Acta Veterinaria Brno
MU Faculty or unit

Faculty of Science

Citation
Field Water pollution and control
Keywords Cytochrome P450; EROD; vitellogenin; Salmo trutta fario; PCB; river contamination
Description This study used biochemical markers to assess contamination at two contaminated sites (Kraliky and Lichkov) and one control site (Cervena Voda) on the River Ticha Orlice, a left-side tributary of the River Elbe. The brown trout was selected as an indicato species. Enzymes of the first stage of xenobiotic conversion, namely cytochrome P450 (CYP 450) and ethoxyresorufin-O-deethylase (EROD) in the liver were selected as biochemical markers. Blood plasma vitellogenin concentrations were used to evaluate xenoestrogenic effects of contamination. Results were compared with the most important inductors of these markers, i.e. with organic pollutants. the highest contamination wit organic pollutants was at Kraliky, and this was reflected in increased cytochrome P450, EROD activity and vitellogenin concentrations. Significant differences were demonstrated in EROD activity and vitellogenin concentrations between Kraliky and Cervena Voda. At the most contaminated site (Kraliky), a significant negative correlation between EROD activity and vitellogenin concentration was demonstrated. This relationship was discussed from the point of view of a possible induction or inhibition of the assessed biomarkers at persistently highly contaminated sites.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.

More info