статья в журнале

En

Russian Journal of Marine Biology

ISSN:10630740
eSSN:1608-3377

2022

10.1134/S1063074022050182

Abstract: Oil pollution remains a serious problem for marine ecosystems, especially for coastal waters that are known as spawning areas of many fish and invertebrates, including commercial species, and are characterized by high biodiversity and productivity. The early ontogenetic stages of aquatic organisms are very sensitive to action of pollutants, which generate various toxic effects, including oxidative stress. The effect of heavy fuel oil (mazut) at concentrations of 0.00001 and 0.02 mL/L on the activity of antioxidant enzymes in the embryos of the rusty blenny Parablennius sanguinolentus was assessed in embryonic stages V and VI. The recorded ambiguous responses of enzymes depended on the stage of embryo development and the concentration of the toxicant. This study investigates possible pathways of reorganization of the enzyme antioxidant system to protect embryos from oxidative stress caused both by preparation to the hatching process by the action of the toxicant effect of mazut. © 2022, Pleiades Publishing, Ltd.

antioxidant enzymes, biomarkers, Black Sea, fish eggs, heavy fuel oil (mazut), pollution

2023-04-17 15:21:50