Estimation of morphometric and fish-breeding biological indicators of Siberian sturgeon (Acipenser baerii Brandt) from the Lena River population, rearing in the conditions of the Far North
Journal Title: Вестник МГТУ - Year 2019, Vol 22, Issue 2
Abstract
Aquaculture is actively developing in the European North. This area is mainly based on using natural water bodies and the cultivation of cold-loving fish species. Sturgeon is a valuable and perspective object of warm-water aquaculture. Siberian sturgeon (Acipenser baerii Brandt), unlike other members of this family, can be grown in farms of various types, including cages established in natural water bodies with low water temperatures. This feature makes it a perspective aquaculture object of the Northern regions. The results of rearing Siberian sturgeon (Acipenser baerii Brandt) from Lena's River population in the Northern regions based on a fish farm in the Murmansk region have been presented. The rearing of two-year-olds and seven-year-olds of sturgeon in cages set up in Imandra Lake has shown a high survival rate and a good growth rate. The results of a comprehensive assessment of morphometric and exterior indicators of Siberian sturgeon have been estimated. The analysis of the measurements and calculated indices has shown that the males for reproduction have high values of fatness and wide-back coefficients. The optimal values of morphometric parameters are observed in the group of sturgeons with the maximum body weight (8.28 kg). The coefficients of fatness in seven-year-olds fish is 1.06, the wide-back coefficient is 17.32 indicating the high quality of future sturgeon for reproduction. It has been noted that the increasing of fatness and wide-back coefficient in this group of fish may appear due to pre-spawning changes occurring in the body of fish, and may indicate early maturation. The materials of studies lead to the conclusion that the use of sturgeon in aquaculture of the Northern regions is perspective. The research on rearing marketable Siberian sturgeon for manufacturing fish products and caviar in the North should be continued. The results indicate a great potential for using the Siberian sturgeon in aquaculture of the Northern regions including areas equated to the Far North.
Authors and Affiliations
A. Yu. Volkova, M. E. Huobonen
Keywords
Related Articles
- EP ID EP597147
- DOI 10.21443/1560-9278-2019-22-2-243-248
- Views 126
- Downloads 0
Rockburst prevention in deep ore pillars by forming relieve slots (for the Lovozero raremetal deposit)
Lovozero GOK which develops the Lovozero rare metals deposit is the only supplier of raw materials for the rare metal industry in Russia. The depth of mining at the deposit having reached 600 m is gradually increasing an...
The safety of navigation in difficult climatic conditions: Forecasting of risks
The development of the Arctic region is now especially relevant. The Arctic shelf is attractive due to hydrocarbon fields, and the Northern Sea Route remains the most important transport route linking Asia and Europe. Ho...
Improving the process of grinding food products
There are a large number of studies on the grinding of various types of food raw materials, however, today there is no comprehensive approach to justifying the influence of the design and operational parameters of the gr...
Reactor units for power supply to the Russian Arctic regions: Priority assessment of nuclear energy sources
Under conditions of competitiveness of small nuclear power plants (SNPP) and feasibility of their use to supply power to remote and inaccessible regions the competition occurs between nuclear energy sources, which is cau...
On formation of substance flows in aerotechnogenically degraded forest landscape
A retrospective analysis of the formation of substance flows in aerotechnogenically degraded forest landscape has been carried out based on the results of testing the atmospheric, soil and stream waters in the vicinity o...