Cite this article as:
Vershinin V. L., Vershinina S. D., Gasimova G. . Influence of the geochemical background of the Western Caspian region of Azerbaijan on acid-base balance regulation of Pelophylax ridibundus (Pallas, 1771) (Amphibia, Ranidae) blood. Current Studies in Herpetology, 2024, vol. 24, iss. 1, pp. 3-11. DOI: https://doi.org/10.18500/1814-6090-2024-24-1-2-3-11
Influence of the geochemical background of the Western Caspian region of Azerbaijan on acid-base balance regulation of Pelophylax ridibundus (Pallas, 1771) (Amphibia, Ranidae) blood
This research paper examines the influence geochemical specifics of habitats on acid base balance of marsh frog blood. An aquatic species, P. ridibundus, is surrounded throughout its entire life cycle by an aquatic environment, which ensures the free exchange of gases and ions across the entire surface of the body, thanks mainly to passive and active transport, which is easily realized in a significant volume. Depending on the level of mineralization, the ionic composition of the aquatic environment and pH, the nature and regulatory potential (which is characterized by the number of correlation interactions) changes. This is reflected in the predominant direction of transmembrane gas-ion flows responsible for acid-base homeostasis. Within certain limits (from ultra-fresh to mineralized waters), these flows are maintained due to passive transport. Apparently, an increase in mineralization to the level of brackish and saline waters, an excess of ions in the environment, as well as an alkaline pH, complicates passive transport and impoverishes the regulatory capabilities of the system, which leads to an increase in the proportion of active transport. Thus, the number and nature of correlations between the concentrations of electrolytes and blood gases well reflect the state of the system for maintaining acid-base homeostasis of animals from a population located in certain environmental conditions.
Buslovskaya L. K. Energy Metabolism and Acid-Base Balance in Farm Animals During Adaptation to Stressors. Diss. Dr. Sci. (Biol.). Belgorod, 2004. 352 p. (in Russian).
Vershinin V. L. Hematopoiesis of tailless amphi-bians – the specifics of adaptation genesis of species in modern ecosystems. Zoologicheskii zhurnal, 2004, vol. 83, no. 11, pp. 1367–1374 (in Russian).
Vershinin V. L. Morph striata in representatives of the genus Rana (Amphibia, Anura) – reasons for adaptability to environmental changes. Zhurnal Obshchei Bio-logii, 2008, vol. 69, no. 1, pp. 65–71 (in Russian).
Vershinin V. L., Vershinina S. D. Physiological similarity of morphs caused by homologous alleles in representatives of the family Ranidae. Biology Bulletin Reviews, 2013, vol. 113, no. 5, pp. 516–523 (in Russian).
Vershinina S. D., Vershinin V. L., Gurvich A. N. Functional specificity of the blood acid-base balance maintaining in Ranidae family – comparative ecological analysis. In: Dunayev E. A., Poyarkov N. A., eds. Problems of Herpetology : Program and Abstracts of the VIII Congress of the A. M. Nikolsky Herpetological Society (NHS) of the Russian Academy of Sciences “Current Herpetological Research in Eurasia”. Moscow, KMK Scientific Press, 2021, pp. 41–43 (in Russian).
Dinesman L. G. Amphibians and reptiles of the south-east of the Turgai Plateu Country and the Northern Aral region. Proceedings of the Institute of Geography of the USSR Academy of Sciences, 1953, iss. 54, pp. 383–422 (in Russian).
Dotsenko I. B. The lake frog (Rana ridibunda) saltwater populations in vicinities of Odessa. Zbirnyk Prats’ Zoologichnogo Muzeyu, 2006, vol. 38, pp. 80–83 (in Russian).
Kuzmin S. L. Amphibians of the Former USSR. Moscow, KMK Scientific Press Ltd, 2012. 370 p. (in Russian).
Robinson J. R. Fundamentals of Acid-Bace Regulation. Moscow, Medicina, 1969. 72 p. (in Russian).
Scherbak N. N. Amphibians and Reptiles of the Crimea. Herpetologia Taurica. Kiev, Naukova Dumka, 1966. 239 p. (in Russian).
Berger L., Smielowski J. Inheritance of vertebral stripe in Rana ridibunda Pall. (Amphibia, Ranidae). Amphibia – Reptilia, 1982, vol. 3, pp. 145–151.
Flier J., Edwards M. W., Daly J. W., Myers C. W. Widespread occurrence in frogs and toads of skin compounds interacting with the ouabain site of Na+, K+-ATPase. Science, 1980, vol. 208, no. 4443, pp. 503–505.
Milto K. D. Amphibian breeds in the Baltic Sea. Russian Journal of Herpetology, 2008, vol. 15, no. 1, pp. 8–10.
Pivovarov A. S., Calahorro F., Walker R. J. Na+/K+-pump and neurotransmitter membrane receptors. Invertebrate Neuroscience, 2019, vol. 19, iss. 1, article no. 1. https://doi.org/10.1007/s10158-018-0221-7
Stiffler D. F. Interactions between cutaneous ion-exchange mechanisms and acid -base balance in amphibians. Canadian Journal of Zoology, 1989, vol. 67, no. 12, pp. 3070–3077. https://doi.org/10.1139/z89-43
Stiffler D. F. Partitioning of acid-base regulation between renal and extrarenal sites in the adult, terrestrial stage of the salamander Ambystoma tigrinum during respiratory acidosis. Journal of Experimental Biology, 1991, vol. 157, iss. 1, pp. 47–62. https://doi.org/10.1242/ jeb.157.1.47
Stiffler D. F. Developmental changes in amphibian electrolyte and acid-base transport across skin. Israel Journal of Zoology, 1994, vol. 40, iss. 3–4, pp. 507–518.
