Petroleum hydrocarbons’ pollution of the aquatic environment is a serious ecological problem. This requires a detailed study of their accumulation in the tissues of aquatic organisms and identification of informative biomarkers to assess the animals’ functional state under oil pollution. The aim of the work was to study diesel (DF) effect on the bioaccumulation, prooxidant-antioxidant system (level of oxidized proteins and lipid peroxidation, antioxidant enzyme (superoxide dismutase (SOD), catalase (CAT) activities) and aminotransferase (aspartate aminotransferase, alanine aminotransferase) activities in the Mytilus galloprovincialis hepatopancreas after five days’ experiment. It was shown that hydrocarbon content in mussels’ hepatopancreas in the control, I (0.5 mg/L DF) and II (1 mg/L DF) experimental groups were 0.01, 0.10 and 1.43 mg/g dry weight, respectively. The level of lipid peroxidation in I and II experimental groups was significantly higher (+59 % and +95 %, respectively) as compared to the control (p < 0.05). The levels of neutral aldehydes from both experimental groups and basic aldehydes from II group significantly increased (+59 %, +47 %, 52 %, respectively) as compared to the control (p < 0.05). SOD activity in II group mussels was significantly higher compared to the control (+30 %) and I group (+45 %) (p < 0.05). Contrastingly, CAT activity in II group mollusks was significantly lower as compared to the control (–125 %) and I group (–114 %) (p < 0.05). Aminotransferase activities did not differ in the control and the experimental groups. Thus, it was determined, that parameters of prooxidanta-ntioxidant system demonstrate high sensitivity to DF and can be used as biomarkers for assessing the functional state of mollusks in oil polluted environment.
Keywords: diesel, mussel Mytilus galloprovincialis, hepatopancreas, parameters of prooxidant-antioxidant system, activity of aminotransferases
Article published in number 2 for 2026 DOI: 10.25750/1995-4301-2026-2-165-173
ISSN 1995-4301
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