Морфологический и генотоксический анализ рыб реки Охчучай в Зангеланском районе

Ulduz Faizi Hashimova; Nushaba Gasham Ragimova; Sevinj Logman Yusifova; Eljan Kamal Ganbarli; Sovet Izzet Gumbatov; Grigoriy Mikhailovich Palatnikov

Authors

Ulduz Faizi Hashimova Academician Abdulla Garayev Institute of Physiology https://orcid.org/0000-0002-7740-0972
Nushaba Gasham Ragimova Academician Abdulla Garayev Institute of Physiology
Sevinj Logman Yusifova Academician Abdulla Garayev Institute of Physiology
Eljan Kamal Ganbarli Academician Abdulla Garayev Institute of Physiology
Sovet Izzet Gumbatov Academician Abdulla Garayev Institute of Physiology
Grigoriy Mikhailovich Palatnikov Academician Abdulla Garayev Institute of Physiology

Keywords:

Zangilan District, Okhchuchay River, Oxynoemacheilus brandtii, blood, gills, liver

Abstract

In July 2022, monitoring of the transboundary Okhchuchay River was carried out from the borders with Armenia deep into the Zangelan region of Azerbaijan. The Okhchuchay River is playing the role of an industrial waste collector, as it is constantly polluted with waste from the Kafan and Gajaran mining industries in Armenia. From the studied five monitoring points, only two specimens Oxynoemacheilus brandtii were caught. For morphological and genotoxic studies, samples of peripheral blood, liver, and gills were taken. The analysis showed that in the gills of the Oxynoemacheilus brandtii, hyperplasia of the interlamellar epithelium and respiratory epithelium of secondary lamellae, complete fusion of secondary lamellae, uneven distribution of hyperplasia of secondary lamellae, and detachment of the respiratory epithelium were detected. Expansion of sinusoids, melanomacrophage centers and necrotic changes were revealed in the liver. When examining the blood among the changes of the structure of the nucleus of erythrocytes karyolysis, karyorrhexis, deformation of the nucleus, parietal nuclei, eccentric nuclei, and hemoglobin breakdown were observed. The obtained data confirm the catastrophic ecological state of the Okhchuchay basin.

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