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Caspian Journal of Enviromental Sciences، جلد ۲۳، شماره ۲، صفحات ۳۸۵-۳۹۶
عنوان فارسی
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عنوان انگلیسی Experience of forming repair and brood stocks of sturgeon fish: Studies on the example of Siberian sturgeon and sterlet
چکیده انگلیسی مقاله The conservation and restoration of valuable, rare, and endemic fish species in Kazakhstan, such as the Irtysh sterlet and Nelma, are critical priorities under national and international biodiversity frameworks. Increasing anthropogenic pressures, including poaching and habitat alteration, threaten these species, necessitating artificial reproduction and broodstock development to support their populations. This study evaluates the domestication and rearing of wild sterlet, Acipenser ruthenus and Siberian sturgeon, Acipenser baerii in recirculating aquaculture systems (RAS) in Kazakhstan. Morphometric, physiological, and hydrochemical parameters were analyzed to assess broodstock viability, growth performance, and adaptation to captive conditions. Results indicate successful domestication of wild sterlet, with optimal hydrochemical conditions (temperature: 14.3–22.3°C, dissolved oxygen: 7.0–9.9 m L-1, pH: 7.0–7.5) supporting sturgeon rearing. Fulton’s condition factor increased with age, suggesting effective feeding regimes. Challenges remain in early sex determination, gonad maturation, and feed adaptation, particularly for wild-caught females. The study demonstrates the feasibility of forming sturgeon broodstocks in Kazakhstan’s aquaculture systems, providing a foundation for conservation and commercial production while highlighting the need for further research on reproductive biotechnology and stress mitigation in domesticated stocks.
کلیدواژه‌های انگلیسی مقاله Sturgeon conservation,Broodstock development,Artificial reproduction,Recirculating aquaculture systems (RAS)
نویسندگان مقاله Aigerim Aitkaliyeva |
Al Farabi Kazakh National University PhD - student, Head of the Test Center, LLP "Fisheries Research and Production Center", Almaty, Kazakhstan

Saule Assylbekova |
Al Farabi Kazakh National University PhD - student, Head of the Test Center, LLP "Fisheries Research and Production Center", Almaty, Kazakhstan

Alexander Lozovskiy |
Astrakhan State University named after V.N. Tatishchev, Professor of the Department of Veterinary Medicine, Astrakhan, Russia

Nailya Bulavina |
Al Farabi Kazakh National University PhD - student, Head of the Test Center, LLP "Fisheries Research and Production Center", Almaty, Kazakhstan

Gulmira Ablaisanova |
Al Farabi Kazakh National University PhD - student, Head of the Test Center, LLP "Fisheries Research and Production Center", Almaty, Kazakhstan

Berdibek Abilov |
. Al Farabi Kazakh National University PhD - student, Head of the Test Center, LLP "Fisheries Research and Production Center", Almaty, Kazakhstan

Farizat Altayeva |
Al Farabi Kazakh National University PhD - student, Head of the Test Center, LLP "Fisheries Research and Production Center", Almaty, Kazakhstan

Zhanar Omarova |
Department of Biodiversity and Bioresources, Al Farabi Kazakh National University Almaty, Kazakhstan

نشانی اینترنتی https://cjes.guilan.ac.ir/article_8720_8ad9f48e4a3325b8634dc9c77bb44557.pdf
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