Hematological parameters of the greenback mullet Planiliza subviridis living in environments with different salinities
DOI:
https://doi.org/10.33910/2686-9519-2026-18-3-909-920Keywords:
кровь рыб, кефаль, Greenback mullet, Planiliza subviridis, гематологические показатели, соленость, среда обитания, адаптацияAbstract
The study was conducted to determine the hematological parameters and peripheral blood cell composition of the fish Planiliza subviridis (Valenciennes, 1836) in two natural habitats — marine (32‰) and brackish (12,3‰). All blood parameters fell within the normal range for fish. The results showed no significant differences in the erythrogram between the two fish groups from different habitats. Erythrocytes of P. subviridis are ellipsoid in shape, with an average size of approximately 10.5×7.32 μm. The proportion of myeloblasts in the leukogram of fish inhabiting saltwater was lower than that in brackish-water mullets. At the same time, the percentage of lymphocytes was higher in fish from the saltwater environment (95.1% versus 90.0%). No signs of stress, such as an increased proportion of neutrophils and a decreased proportion of lymphocytes, were recorded in the hematological parameters of fish that had successfully adapted to natural marine and brackish-water environments. The obtained results contribute to the database on blood cells for euryhaline fish species.
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References
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Witeska, M., Kondera, E., Bojarski, B. (2023) Hematological and hematopoietic analysis in fish toxicology — a review. Animals, vol. 13, no. 16, article 2625. https://doi.org/10.3390/ani13162625 (In English)
Zarejabad, A. M., Jalali, M. A., Sudagar, M., Pouralimotlagh, S. (2010) Hematology of great sturgeon (Huso huso Linnaeus, 1758) juvenile exposed to brackish water environment. Fish Physiology and Biochemistry, vol. 36, no. 3, pp. 655–659. https://doi.org/10.1007/s10695-009-9339-1 (In English)
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