Morphological changes in Russian sturgeon juvenile during intensive cultivation method in small ponds
https://doi.org/10.36038/0131-6184-2024-6-70-76
Abstract
Juvenile sturgeon fish species raised in hatcheries and released into natural habitats are characterized by a low commercial return. This is often due to the small size of the fish being released, which in turn encourages the fish farming community to release larger sized fish. Prolonged sturgeon farming entails anthropogenic impact and the manifestation of morphological changes. In this regard, the purpose of the work was to determine the morphological changes in juvenile Russian sturgeon caused by various biotic and abiotic factors, with an intensive method of rearing in small ponds. During the study, 60 specimens of juvenile Russian sturgeon were studied, taken from 6 sturgeon hatcheries located in the Astrakhan region. During the experiment, it was proven that the location of the plant, inbreeding of the broodstock, the natural food supply of the ponds, as well as the hydrochemistry of water are important factors in fish breeding, and also have a great influence on the growth, development, mass accumulation and exterior indices of sturgeon fish species.
Keywords
Russian sturgeon,
conditions of detention,
intensive method of cultivation,
exterior indexes,
morphological changes
Supporting agencies: The work was carried out within the framework of state assignment No. 124020200032-4
About the Authors
P. S. Ilyushina
All-Russian Research Institute of Integrated Fish Farming -branch of the Federal State Budgetary Scientific Institution «Federal Research Center for Animal Breeding – VIZH named after academician L.K. Ernst»
Russian Federation
Russian Federation
Polina S. Ilyushina – laboratory researcher
142460, Moscow region, Noginsk, Vorovskogo, Sergeeva street, h. 24
L. S. Loginov
All-Russian Research Institute of Integrated Fish Farming -branch of the Federal State Budgetary Scientific Institution «Federal Research Center for Animal Breeding – VIZH named after academician L.K. Ernst»
Russian Federation
Russian Federation
Leonid S. Loginov – specialist
142460, Moscow region, Noginsk, Vorovskogo, Sergeeva street, h. 24
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Review
For citations:
Ilyushina P.S., Loginov L.S. Morphological changes in Russian sturgeon juvenile during intensive cultivation method in small ponds. Fisheries. 2024;(6):70-76. (In Russ.) https://doi.org/10.36038/0131-6184-2024-6-70-76
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