Some results of commercial eel cultivation in the Kaliningrad region

The article presents comparative results of commercial cultivation of Anguilla anguilla river eel under different conditions of keeping in three types of ultrasonic devices developed in the Kaliningrad region. The dynamics of eel mass, the values of the mass accumulation coefficient, the size composition and density of eel planting in nursery and commercial farms are presented, and the economic efficiency of obtaining marketable products is compared. It is shown that the development of industrial technologies for growing commercial eel in the Kaliningrad region has confirmed the possibility of realizing the fish’s potential for mass accumulation at a level consistent with the technical capabilities of the RAS and a balanced approach in determining the quantitative and qualitative composition of cultivated generations of eel. The combination of planting materials for pasture and commercial eel farming at certain stages of cultivation is undesirable.