Research of salt tolerance and body color of bester
https://doi.org/10.36038/2307-3497-2024-196-151-162
Abstract
The aim: establish the possibility of keeping and growing in sea water with a salinity of more than 18‰ of different age groups of bester on marine fish farms. To investigate the body coloration of the breeders and offspring of the Bester hybrid.
Methods used: the research was carried out in 2004–2005 in the Republic of Korea according to standard methods used in fisheries research.
Novelty: data were obtained on the transfer of juveniles and yearlings of Bester to the sea water with a salinity of 28–29‰. Research confirmed the fundamental possibility, as well as the prospects for rearing juvenile bester in freshwater recirculating systems with the subsequent transfer of fish to sea water. Various bester’s shades of skin color are described.
Result: as a result, the average weights of bester juveniles were established to start the transition to salt water. Analysis of the data showed that yearlings switch to a high salinity of 23–24‰ with a survival rate of more than 73%, and juveniles with low survival rate after 18‰. Ten Bester lines were identified, differing in skin color and fin shape.
Practical significance: the experiment already has practical results in the Republic of Korea. Having sufficient resources of salty waters (the Baltic, Black, Caspian and Azov Seas), Russia has prerequisites for the successful cultivation of sturgeon in sea water. The connection of the offspring’s body color and its mother has been established, as well as its diversity depending on the places where sturgeons are cultivating.
About the Authors
S. E. Zuevskiy
Russian Federal Research Institute of Fisheries and Oceanography («VNIRO»)
Russian Federation
Russian Federation
Sergey E. Zuevskiy
19, Okruzhnoy proezd, Moscow, 105187
O. P. Filippova
Russian Federal Research Institute of Fisheries and Oceanography («VNIRO»)
Russian Federation
Russian Federation
Olga P. Filippova
19, Okruzhnoy proezd, Moscow, 105187
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Review
For citations:
Zuevskiy S.E., Filippova O.P. Research of salt tolerance and body color of bester. Trudy VNIRO. 2024;196:151-162. (In Russ.) https://doi.org/10.36038/2307-3497-2024-196-151-162
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