Section

Ecology

Title

IMMUNOHEMATOLOGICAL CHARACTERISTICS OF AMPHIBIA IN THE NIZHNI NOVGOROD REGION WATER RESERVOIRS OF VARIOUS HYDROCHEMICAL COMPOSITIONS

Сontributors

V. Yu. Nikolaev, Postgraduate student, Lobachevsky State University of Nizhni Novgorod, This email address is being protected from spambots. You need JavaScript enabled to view it.,

E. B. Romanova, PhD (Biology), Dr. Habil., Lobachevsky State University of Nizhni Novgorod, This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

In the paper a complex approach to the assessment of the immune status of natural populations of marsh (Pelophylax ridibundus) and pool (Pelophylax lessonae) frogs inhabiting the Nizhni Novgorod water reservoirs of various hydro-chemical compositions is developed. In the set of anthropogenic leucocytes providing reactions of immune response, the neutrophilic granulocytes and lymphocytes, i.e. the main adaptive immunity cells, proved to be the most sensitive to the complex of anthropogenic and abiotic environmental factors. The redistribution of the ratio of less mature neutrophilic granulocyte forms has been revealed in the blood of marsh and pool frogs. For the first time the increase of the myelocyte portion and the decrease of stab and segmented neutrophilic granulocytes leading to general neutropenia have been exposed. It illustrates toxic effect manifestation and inflammatory process development in the organisms of marsh frogs in the impact territory.

The changing quantitative content of neutrophiles of various maturity degrees in amphibian blood is the determining discriminating indicator of the urbanized territory amphibian population samples. The potent interconnection between the values of integral indices of blood leukocyte composition and the content of heavy metals in the water by Spearman's nonparametric correlation criterion has been shown.

Keywords

amphibian immune system, WBC (White blood cells), neutrophils, lymphocytes.

References

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