Mercury content in the organs of small mammals in different geomorphological regions of the taiga zone of the European part of Russia

• Published in: Ecosystem Transformation
• Main Authors: Elena S. Ivanova, Olga Yu. Rumiantseva, Yuri G. Udodenko, Liubov S. Eltsova, Viktor T. Komov
• Format: Article in Journal/Newspaper
• Language: English; Russian
• Published: Cherepovets State University 2023
• Subjects: common shrew; common vole; food webs; biogenic migration; vologda oblast; kidneys; liver; muscles; Environmental sciences; GE1-350; Common vole; taiga
• Online Access: https://doi.org/10.23859/estr-230717; https://doaj.org/article/e0543be2670d4f489a303c173cf20be7

The content of total mercury in organs and tissues (brain, muscles, kidneys, and liver) has been studied in common shrew and in common vole, living in different geomorphological regions of the Vologda Oblast. Mercury content is statistically significantly higher (2–5 times) in common shrew than in common vole. In common shrew, average mercury content (μg/g dry weight) decreases in the series: kidneys (0.158 ± 0.016) > liver (0.086 ± 0.01) > muscles (0.084 ± 0.011) > brain (0.059 ± 0.006); in common vole, kidneys (0.026 ± 0.003) > brain (0.024 ±0.004) > muscles (0.016 ±0.003) > liver (0.013 ± 0.002). Mercury content in organs of common shrew and of common vole, caught in the western geomorphological region with high swampiness and a large number of lakes, is statistically significantly higher (2–3 times) comparing to those captured in the eastern geomorphological region with a developed river network.