Revisiting the State of Natural and Artificial Reproduction of Sturgeons in the Volga-Caspian Basin

Anokhina, Adelya Zakirovna; Zaitsev, V. F.

doi:10.24143/2073-5529-2018-1-111-117

Cited by 4 publications

(5 citation statements)

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“…Contemporary analysis of the use of sturgeon spawners for artificial reproduction shows that since 2002 there has been an increasing trend in the role of fish from breeding flocks (Figure 3). Compared to only 50% of farmed spawners in 2013, they already accounted for 85% in 2015 [1]. Starting in 2017 and all subsequent years, the artificial reproduction farms switched completely to working with spawners from breeding flocks.…”

Section: Artificial Reproduction Of Sturgeonmentioning

confidence: 99%

Russian sturgeon aquaculture in modern conditions

Vasilyeva¹,

Anokhina²,

Magzanova³

et al. 2022

The Caspian in the Digital Age

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Under the current conditions of valuable fish species depletion, sturgeon aquaculture is intended to solve two major problems, such as restoring natural stocks and saturating the consumer market with delicacy products. Artificial reproduction is the only feasible way of preserving the sturgeon gene pool in Russia’s water bodies, since natural reproduction has been reduced to zero. Commercial sturgeon farming addresses the needs of the consumer market in the context of the ban on commercial fishing. The article deals with the issues of the state and prospects of sturgeon aquaculture development.

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Section: Artificial Reproduction Of Sturgeonmentioning

confidence: 99%

Russian sturgeon aquaculture in modern conditions

Vasilyeva¹,

Anokhina²,

Magzanova³

et al. 2022

The Caspian in the Digital Age

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“…The Volga-Caspian region, which contains 25% of the sturgeon farms, comprises Astrakhan Oblast, which is currently undergoing intensive sturgeon farming development (Anokhina & Zaitsev, 2018). Last year, the harvest of farmed sturgeon was 570 t, compared with 450 t in 2016, for an increase of 26.7%.…”

Section: The Largest Facilities Contributing To Sturgeon Culture Inmentioning

confidence: 99%

“…Thus, at present and in the near future, there is/will be an acute shortage in the number of wild sturgeon producers. The work for conserving and replenishing sturgeon populations in the Volga-Caspian basin is possible through controlled propagation due to the guaranteed production of seedlings from farmed broodstocks (Anokhina & Zaitsev, 2018).…”

Section: Farmed Sturgeon Broodstocksmentioning

confidence: 99%

“…I G U R E 8 Number of mature broodstocks used in hatchery reproduction programmes each year to produce juveniles for release into the Volga Delta and northern Caspian Sea during the years 2012 to 2015. Data from(Anokhina & Zaitsev, 2018) [Colour figure can be viewed at wileyonlinelibrary.com] In the future, the genetic analysis of offspring will allow the producers of these young to be determined, thereby evaluating the contribution of each region and hatchery to the controlled propagation at the basin scale. Moreover, introducing genetic monitoring methods will significantly optimize controlled propagation, identify active facilities and effective technologies, increase the efficiency of sturgeon hatcheries and reduce the cost of reproduction.…”

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confidence: 99%

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History, current status and prospects of sturgeon aquaculture in Russia

et al. 2019

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Since natural sturgeon populations have drastically declined, aquaculture of these valuable fish is important to meet the ever‐increasing demand for meat and caviar, thereby reducing the pressure on natural sturgeon resources. There are two directions in sturgeon aquaculture: controlled propagation for release and commercial farming. The controlled propagation supports the conservation of natural fish populations, while the commercial cultivation of sturgeons supplies the needs of the consumer market with the delicacy production of caviar (mainly). This review deals with the current status of the controlled propagation and stocking in the Volga‐Caspian basin and the commercial farming of sturgeons in Russia. The article also investigates the management of farmed broodstocks of sturgeons, which are used for obtaining seedlings and caviar. It is for sure that the active and continuous development of the two directions of sturgeon aquaculture will allow preserving these unique ancient fish on our planet until natural populations can be re‐established by self‐sustaining populations.

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“…В условиях дефицита, а порой и отсутствия производителей естественных генераций особое значение приобретают продукционные стада, процессы их формирования, оптимального содержания и рациональной эксплуатации [3]. Их создание позволяет решать основную задачу по гарантированному обеспечению рыбоводных процессов по искусственному воспроизводству, в результате чего возможно сохранение биологического разнообразия осетровых видов рыб [4].…”

Section: Introductionunclassified

Characterization of the Beluga Breeding Practices at the Don Sturgeon Hatchery

Vorobyeva,

Gorbenko,

Sergeeva

et al. 2023

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The study conducted in 2022 has identified a lack of consistency in the results of the beluga artificial reproduction at the Don Sturgeon Hatchery (DSH). To obtain eggs, mostly the females born in 2001–2004 were used, out of which 31 females at age 18 reached their first maturity and one female at age 21 was a repeat spawner. The majority of first-spawning females produced eggs of low quality. During incubation, there was a substantial loss of fertilized eggs, and various anomalies of embryonic development were observed, which necessitated termination of the incubation of such eggs. The yield of one-day larvae from the eggs obtained from the first-spawning females and set for incubation was low, around 12 %. One of the reasons for the increased mortality rates and development anomalies in the larvae was low quality of the oocytes in the first-spawning individuals. A second-spawning female has shown satisfactory results; the fertilization rate was in line with the standard values, and no more than 17 % of the eggs manifested embryonic anomalies during their incubation. The yield of one-day larvae was 53.3 %. In total, 799 thousand one-day beluga larvae were obtained. The analysis of the cultivation practices at the Don Sturgeon Hatchery made it possible to identify the bottleneck points and critical junctures at some stages of the biotechnological process, as well as to give recommendations on improvement of the hatchery operation. An important prerequisite for obtaining good results is the physiological adequacy of beluga females, which is based, for the most part, on the living environment and feeding quality of the breeders and their replacement in the broodstock.

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Revisiting the State of Natural and Artificial Reproduction of Sturgeons in the Volga-Caspian Basin

Cited by 4 publications

References 1 publication

Russian sturgeon aquaculture in modern conditions

Russian sturgeon aquaculture in modern conditions

History, current status and prospects of sturgeon aquaculture in Russia

Characterization of the Beluga Breeding Practices at the Don Sturgeon Hatchery

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