E3S Web Conf.
Volume 265, 2021Actual Problems of Ecology and Environmental Management (APEEM 2021)
|Number of page(s)||3|
|Published online||03 June 2021|
Influence of hydrochemical indicators on the age and density of bivalve molluscs, spread in the lower reaches of the Zarafshan river
1 Samarkand State University, 140104 Samarkand, Uzbekistan
2 Navoi State Pedagogical University, 210100 Navoi, Uzbekistan
3 Karshi State University, 180103 Karshi, Uzbekistan
4 Jizzakh Polytechnic Institute, 100130, Jizzakh, Uzbekistan
* Corresponding author: Sulton.Suyarov@mail.ru
Hydrochemical parameters of water in ecosystems of Gijdivan district of Bukhara region: O2 content 4,9 ± 0,5 mg / l, Cl2 312 ± 14 mg / l, mineralization - 992-1402 mg / l and oil products about 0,6-0,8 mg / l, it turned out that the amount of these elements in the water exceeds the permissible norm. The following conclusions were made on the basis of the study of the status of the species listed in the “Red Book” in aquatic ecosystems of the lower reaches of the Zarafshan river. We found that the population of the species Colletopterum and Corbicula in the village of Sultanabad in the Navoi region is a growing population, while the population of the species Colletopterum and Corbicula in the Gijduvan region of the Bukhara region is decreasing.
© The Authors, published by EDP Sciences, 2021
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