Complex application of microbiological characteristics in bottom sediments and biochemical parameters of mussel Mytilus galloprovincialis (Lam.) for assessing the ecological state of marine coastal areas

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Skuratovskaya Ekaterina; Doroshenko Yuliya

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Journal Paper

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Journal: POLLUTION Year:2022 | Volume:8 | Issue:3 Page(s): 1038-1048

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Title

Complex application of microbiological characteristics in bottom sediments and biochemical parameters of mussel Mytilus galloprovincialis (Lam.) for assessing the ecological state of marine coastal areas

Author(s)

Skuratovskaya Ekaterina | Doroshenko Yuliya | Issue Writer Certificate

Keywords

oxidative stressQ4

antioxidant systemQ4

mussel Mytilus galloprovincialisQ4

BacteriaQ4

Environmental PollutionQ4

Abstract

Comparative analysis of microbiological indicators (heterotrophic and hydrocarbon-oxidizing Bacteria) in bottom sediments and biochemical parameters (level of oxidized proteins (OP) and lipid peroxidation (LPO), superoxide dismutase (SOD), catalase (CAT), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities) in hepatopancreas of mussel Mytilus galloprovincialis (Lam.) from three Sevastopol bays - Laspi, Kazach’ya, Streletskaya (the Black Sea) was carried out. The results obtained allowed to identify certain differences between the studied areas and characterize their ecological state. The maximum abundance of heterotrophic and hydrocarbon-oxidizing Bacteria was found in the most polluted Streletskaya Bay (95,000 and 250 cells/g respectively), the minimum - in the conventionally pure Laspi Bay (2,500 and 1.5 cells/g respectively). Parameters of prooxidant-antioxidant system (level of OP and LPO, SOD and CAT activities), as well as ALT activity in the hepatopancreas of mussels from Streletskaya Bay were found higher as compared to those in other tested areas. Most significant differences (more than twofold) in SOD activity, LPO content and basic ketone forms of OP levels were found between Laspi and Streletskaya bays. The results obtained indicate the severe pollution and less favorable living conditions for aquatic organisms in Streletskaya Bay, as well as demonstrate the high level of biochemical adaptation of mussels to complex Environmental Pollution. The studied parameters can be applied in the ecological monitoring of the coastal sea water areas.

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