The Influence of Changes in the Hydrological Regime of the Ural River in the West Kazakhstan Region on Fish Resources
The Influence of Changes in the Hydrological Regime of the Ural River in the West Kazakhstan Region on Fish Resources
Author(s): Daniyar A. Tagayev, Turesh Murzashev, Arkady Kim, Zhaskhaiyr KaragoishinSubject(s): Social Sciences, Economy, Education, Geography, Regional studies, National Economy, Business Economy / Management, Agriculture, Energy and Environmental Studies, Physical Geopgraphy, Regional Geography, Environmental Geography, Sociology, School education, Adult Education, Higher Education , State/Government and Education, Evaluation research, Social development, Family and social welfare, Policy, planning, forecast and speculation, Economic development, Globalization, Inclusive Education / Inclusion, Socio-Economic Research
Published by: Национално издателство за образование и наука „Аз-буки“
Keywords: hydrological regime; Ural River; fish resources; spawning conditions
Summary/Abstract: The Ural River is one of the main fisheries reservoirs of Kazakhstan. Its hydrological regime has been unstable over the past 10 years, which has affected the formation of fish resources. The present study has shown that commercial fish populations decrease from year to year due to the deterioration of spawning conditions in low-water years, when spawning grounds are not fully watered. In these years, the spawning efficiency decreased from 11% to 70%.
Journal: Химия. Природните науки в образованието
- Issue Year: 27/2018
- Issue No: 1
- Page Range: 120-130
- Page Count: 11
- Language: English
- Content File-PDF
