On the issue of the expediency of using aquaponics as an effective resource for the production of aquaculture and microgreens

Modern realities, in particular the need to expand import substitution, contribute to the development of new or alternative ways to ensure food security in the Russian Federation. In this regard, the expediency of using aquaponic systems for the cultivation of hydrobionts and various types of micro-plants is being considered. The results of monitoring the hydrochemical regime indicate a decrease in the concentration of ammonia-ammonium, nitrate nitrites relative to the content of the same forms of nitrogen in fish tanks without the use of aquaponics by 1.9; 2.2 and 1.6 times, respectively, which had a beneficial effect on the size and weight indicators of farmed fish. The average mass of tilapia Nile specimens cultivated in the aquaponic system, as well as the absolute growth rate of individuals, exceeded similar indicators of the control group by 1.5 and 1.7 times, respectively. The fish belonging to the experimental group were also characterized by the largest body length relative to the specimens of the control population. The duration of the growing season of microgreens, depending on the culture, ranged from 13 to 25 days. Various types and hybrid forms of basil were characterized by the highest green mass, number of leaves, height, development of the root system and a shorter growing cycle relative to other experimental plant samples (arugula and watercress). The conducted research indicates a high adaptation of this crop to existence in aquaponics conditions, therefore it must be considered as one of the key ones for this type of cultivation. The results obtained allow us to recommend the use of joint cultivation of microgreens and aquatic organisms as a resource for increasing the economic efficiency of industrial systems of aquaculture farms.