FEATURES OF INTERORGAN DISTRIBUTION OF MINERALS IN STARRED STURGEON GROWN UP IN ARTIFICIAL CONDITIONS
The purpose of research is to study specific features of interorgan distribution of minerals in starred sturgeon Acipenser stellatus Pallas, 1771, grown up in artificial conditions in the fish ponds of the Kizan sturgeon hatchery (the Astrakhan region). The article touches upon distribution of zinc, lead, manganese, ferrum, cobalt and copper in the spleen, gonads and liver both male and female starred sturgeon species. 256 samples of starred sturgeon sire tissues obtained in the fall period 2011-2012 served as a material. Mineral content in samples was determined by the atomic-absorbing spectroscopy method. It has been stated that maximum quantity of each mineral studied, regardless of gender, is concentrated in gonads and liver. Evidently, the concentration of minerals and their accumulation in fish organisms are influenced by biochemical composition of water, ground and other potential and existent sources of microelements, as well as spawning reorganization. In the process of spawning reorganization there can be observed not only changes in accumulating minerals in the system ‘environment-organism’, but vigorous redistribution of minerals, accumulated previously, between different organs and tissues. The article gives series if the organs studied, sorted according to a decreasing level of mineral concentration. The results obtained have been compared to the results of other researches. The author highlighted the need to investigate in depths environmental conditions of the sturgeon habitats (natural and artificial) and approximation of artificial conditions to the natural biogeochemical level.