Features of the reproductive system development in the installations of closed water supply system

Ponomareva, Elena; Geraskin, Peter; Sorokina, Marina; Kovaleva, A. V.; Grigoriev, Vadim

doi:10.1051/e3sconf/202017502012

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…During the experiment, the haemoglobin level in the blood of the fish was within the physiological norm for fish from the natural environment (50-70 g/L) [28,29]. At the same time, a decrease in haemoglobin concentration was observed at the end of the experiment [30]. In addition, in variant 1, haemoglobin levels at the end of the experiment were significantly different from those at the beginning of cultivation (P < 0.05).…”

Section: Resultsmentioning

confidence: 96%

New supplementary feeds for sterlet in industrial cultivation

Ponomareva,

Geraskin,

Kovaleva

et al. 2024

BIO Web Conf.

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An increasingly significant deficit of fish meal necessary for the production of quality fish feed requires the use of new components characterised by high levels of protein and fat. This article presents the results of a feed supplements study with a protein component based on soldier fly and probiotics. The study of fish-biological parameters of fish revealed that the absolute and average daily gain in the variant with feed KV54 + soldier fly is higher by 40.9 %, the mass accumulation ratio by 33.3 %, compared with the control variant, with survival rate of 100 %. Feeding coefficient in the experiment variant KV54+soldier fly is lower compared to the control by 1.3 units, i.e. by 34 %. The physiological and biochemical parameters of fish blood were within the normal range for fish from a natural reservoir.

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Section: Resultsmentioning

confidence: 96%

New supplementary feeds for sterlet in industrial cultivation

Ponomareva,

Geraskin,

Kovaleva

et al. 2024

BIO Web Conf.

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“…Sterlet is distributed in the Black Sea, Caspian Sea, Yenisei River and Ob River in Russia. The optimal water temperature range for sterlet spawning is 13–16°C (Ponomareva et al., 2020), and the typical spawning grounds of sterlet include riverbed and roaming beach formed by spring water (Lenhardt et al., 2006). Juvenile sterlets are often found in groups in shallow water, while individual adults are scattered in deeper water for feeding.…”

Section: River Damming Impacts On Key Fish Speciesmentioning

confidence: 99%

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Chen,

Li,

Lin

et al. 2023

Reviews of Geophysics

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River damming has brought great benefits to flood mitigation, energy and food production, and will continue to play a significant role in global energy supply, particularly in Asia, Africa, and South America. However, dams have extensively altered global river dynamics, including riverine connectivity, hydrological, thermal, sediment and solute regimes, and the channel morphology. These alterations have detrimental effects on the quality and quantity of fish habitat and associated impacts on aquatic life. Indeed, dams have been implicated in the decline of numerous fishes, emphasizing the need for effective conservation measures. Here, we present a global synthesis of critical issues concerning the impacts of river damming on physical fish habitats, with a particular focus on key fish species across continents. We also consider current fish conservation measures and their applicability in different contexts. Finally, we identify future research needs. The information presented herein will help support sustainable dam operation under the constraints of future climate change and human needs.

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Development of commercial trout breeding in southern Russia in the context of the import substitution strategy

Neidorf,

Tkacheva,

Kokhanov

et al. 2024

BIO Web Conf.

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Aquaculture is the main promising direction for the development of the fisheries industry. Analysis of the general condition of fish breeding enterprises and the potential for expanding production shows that the growth trend of traditional for the southern regions pond fish breeding is weak. A significant problem for the development of aquaculture is the high price of fish products and, accordingly, low demand. A substantial reduction in the cost of fish production is currently unlikely to be achieved, so switching to more valuable fish varieties can stimulate consumption. To ensure the development of the fish products market and increase demand, entrepreneurs in southern Russia are improving technologies for growing such valuable fish varieties as salmonoids, in particular, rainbow trout. Studying the activities of trout farms requires taking into account which area of activity is prioritized. A farm can produce marketable fish or fish planting material, as well as execute both types of production. The work observes the organizational features of trout farms and promising directions of their development. Solving such key issues as the provision of qualified personnel, high-quality feed of domestic, preferably regional production, and provision of logistically affordable and high-quality planting material is the basis for achieving the goals of import substitution for high-quality fish products in Russia.

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Features of the reproductive system development in the installations of closed water supply system

Cited by 4 publications

References 6 publications

New supplementary feeds for sterlet in industrial cultivation

New supplementary feeds for sterlet in industrial cultivation

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Development of commercial trout breeding in southern Russia in the context of the import substitution strategy

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