The possibility to recreate sturgeon populations in the North-west

The Baltic Sea basin was inhabited by the Baltic Sturgeon population until the middle of the last century. However, this most valuable species disappears catastrophically and is listed in the Red Book. The acclimatization of sturgeon fish into the Gulf of Finland and Lake Ladoga (1955-1982) was completed due to the lack of a sturgeon base. On the verge of complete extinction is its herd population of sturgeon, which previously had a commercial value. The main reason for his disappearance was the destruction of its spawning grounds as a result of hydro -construction on the Volkhov River and intensive poaching. However, the possibility of restoring its population in Ladoga re-mains.To do this, it is necessary to adopt a special program to create a modern sturgeon base in the Ladoga lake basin. This isolated domestic basin with limited area and of relatively small antropohenic load meets the basic requirements of a foraging. Therefore, it is optimal for the restoration of an economically significant and protected local population of sturgeon.For the development of fish-breeding and tech-economical founding, several sites for the construction of a sturgeon fish farm are proposed. Among them is a particularly highlighted area near the village of Old Ladoga. Here in the lower Volkhov river originally located the main spawning grounds of Ladoga sturgeon. This area is optimal by the diverse free natural landscapes, proximity of communications, energy security and prospects for the development of the Old Ladoga, as an important cultural and historical center of the Northwest region. The profitability of commercial sturgeon farming is now economically well-founded, which will pay for the joint reproduction of Ladoga sturgeon on a compensatory basis. International cooperation is appropriate to restore the Atlantic sturgeon. This would speed up the process of restoring the Ladoga sturgeon population by forming its brood stocks. The biotechnics of working with sturgeon can already be practiced on the existing sterlet in nature. It is the only species of sturgeon to survive in the European North, especially in the Northern Dvina river and Onega Lake. Sterlet has the greatest ecological-physiological plasticity of reproduction, short cycles of maturity and the most important system of species adaptations, which provided it with the largest area of settlement among sturgeon. As a result, the use of Ladoga and Onega lakes as foraging reservoirs and reliable production of planting material on the basis of new modern biotechnology reproduction will allow to preserve, or recreate the Ladoga sturgeon population and grow annually up to 100 tons of sturgeon fish.

Atlantic sturgeon, Baltic population of Atlantic sturgeon, Ladoga sturgeon population, artificial farm reproduction of sturgeon populations, sturgeon farm biotechnology

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