Abstract
A comparative study of some parameters of erythrocytes of bearded seals of different ages (three years, five years, and ten years) was carried out. It was established that the resistance of erythrocyte membranes to hemolysis increases with age. During puberty, the intensity of glycolysis in erythrocytes of the bearded seals increases and then decreases in adult animals. Differences in the content of potassium, calcium, and magnesium in the erythrocytes of animals of the studied age groups are shown.
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ACKNOWLEDGMENTS
The author expresses gratitude to the staff of the laboratory of marine mammals of the Murmansk Marine Biological Institute, Russian Academy of Sciences N.N. Kavtsevich, V.N. Svetochev, and O.N. Svetocheva for the collection and primary processing of animal blood samples during expeditions.
Funding
This study was supported by the Ministry of Education and Science of the Russian Federation within the framework of a State Assignment of the Murmansk Marine Biological Institute, Russian Academy of Sciences, “Ecology and Physiology of Marine Mammals of the Arctic Seas” (state registration no. 121091600101-6).
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The animals were handled in accordance with the European Convention for the Protection of Vertebrate Animals Used for Experimental and Other Scientific Purposes (1986). The study was approved by the Bioethics Commission of Murmansk Marine Biological Institute, Russian Academy of Sciences (Conclusion No. 2 on compliance of the study with the current international regulations, recommendations, laws and other regulations of the Russian Federation norms of ethical conduct of research using animals dated December 27, 2023).
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Erokhina, I.A. Physiological and Biochemical Parameters of Erythrocytes in White Sea Bearded Seals Erignathus barbatus barbatus Erxleben, 1777 (Phocidae) across Different Age Groups. Biol Bull Russ Acad Sci 51, 228–232 (2024). https://doi.org/10.1134/S1062359023603580
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DOI: https://doi.org/10.1134/S1062359023603580