Technological influence on the current state of the species composition of the ichthiofauna of the r. Samara in the Novomoskov District of the Dnipropetrovsk Region

Abstract

The species composition of the ichthyofauna of the Samara River under the influence of man-made factors in the Novomoskovsk district of the Dnipropetrovsk region is presented. The environmental problem of the Samara River in the Novomoskovsk district is characterized, and the man-made influence on the species composition of the ichthyofauna of the Samara River is revealed. The species composition of the ichthyofauna of the Samara River in the Novomoskovsk district was analyzed based on literature data, and field and ichthyological studies were also conducted to determine the species composition of the ichthyofauna of the Samara River. The results of the influence of technogenic factors on the ichthyofauna of the Samara River in Novomoskovsk in modern realities have been revealed. The obtained results are summarized and analyzed in relation to technogenic influence on the species composition of ichthyofauna. In the studied area, it was found that there are the largest population of the following species: Neogobius fluviatilis Pallas, 1814; Alburnus alburnus Linnaeus, 1758; Carassius auratus gibelio Bloch, 1782; Scardinius erythrophthalmus Linnaeus, 1758; Perca fluviatilis Linnaeus, 1758; Rutilus rutilus Linnaeus, 1758; Lepomis gibbosus Linnaeus, 1758; Esox lucius Linnaeus, 1758. The restoration of natural water bodies on the example of the study model of technogenic influence on the species composition of the ichthyofauna of the Samara River, Novomoskovskiy district, Dnipropetrovsk region, is subject to study in the context of scientifically useful interest. Technogenic factors have a significant impact on the reservoir and the formation of species composition of ichthyofauna in it. Own research was conducted in the water area of ​​the Samara River to study the species composition under the influence of man-made factors. A table of fish species living in the Samara River was compiled and their status and distribution were indicated. We compared and summarized the obtained data with research materials of previous years. To improve the species composition of the ichthyofauna of the Samara River, mechanical and biological reclamation and stocking of the Samara River with white carp, crucian carp, and carp are proposed. Therefore, it was concluded that the processes of changing the ichthyocenosis under the influence of technogenic factors of pollution require the necessary optimizing interventions and require the attention of researchers and monitoring.