Content of trace elements in Zostera marina (Linnaeus, 1753) in the Northern Caspian Sea in 2018–2020
This article presents a comparison of the content of heavy metals in Zostera marina in the Northern Caspian Sea for the autumn season (2018–2020). To determine the concentration of heavy metals (copper, zinc, manganese, lead, nickel, iron, chromium, cadmium), the method of atomic absorption spectrometry was used as prescribed in the state standard (GOST 30178-96). As a result of this research, the data on the concentrations of trace elements have been collected, and the patterns of their accumulation in a plant organism have been identified. Decreasing series of concentrations of heavy metals by years have been compiled; the predominant trace elements (iron, manganese, zinc, copper) in the composition of Zostera marina have been identified, and their content has been analyzed. The biological absorption coefficients (BPC) for the investigated plant have been calculated based on the available data on their content in the soils of the Northern Caspian Sea. It is shown that Zostera marina can be used as a bioindicator for zinc and manganese in the Northern Caspian Sea, and the other heavy metals (copper, nickel, lead, iron, chromium, cadmium) are deconcentrators (BPC<1). A general decrease in the presence of heavy metals in Zostera marina in the Northern Caspian Sea has been recorded for the time range from 2018 to 2020.
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| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2022
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| Subjects: | Zostera marina, Тяжелые металлы, Медь, Цинк, Марганец, Микроэлементы, Коэффициенты биологического поглощения (КБП), Heavy metals, Atomic absorption spectrometry, Biological absorption coefficients (BPC), Copper, ASFA_2015::H::Heavy metals, ASFA_2015::M::Marine plants, ASFA_2015::P::Phytobenthos, |
| Online Access: | http://hdl.handle.net/1834/42536 |
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