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Information × Registration Number 0225U001353, (0123U101763) , R & D reports Title Development and introduction of innovative methods, technologies of production of fisheries products popup.stage_title Абіотичні і біотичні умови існування іхтіофауни у трансформованих акваторіях Дніпровсько-Бузької естуарної системи Head Kutishchev Pavlo S., Кандидат біологічних наук Registration Date 30-01-2025 Organization Kherson State Agrarian and Economic University popup.description1 Improvement of methods, technologies of production of fisheries in the Dnieper-Buh estuary system by establishing a system of relations of biological and technological indicators in production conditions with determination of bioproduct potential of transformed reservoirs and growing ponds, the biological state of ichthyofauna, taking into account changes in the trophological status and food relationships focusing on the harmonic relationship of native and artificially-formed ichthyocenosis. popup.description2  The continuity of both abiotic and biotic indicators has been established. The main factors determining the formation of the structure of benthic invertebrates have been determined: water salinity and the origin of water bodies (artificial or natural). A comparative analysis of the main abiotic factors and taxonomic characteristics of phytoplankton in different ecosystems of the Dnieper River has been carried out, including the main cascade of the Kyiv Reservoir and the natural Dnieper Estuary; changes in the trophic state of the hydroecosystem from mesotrophic (at the stage of an unregulated river) to eutrophic (currently) have been determined, depending on the intensity of cyanobacteria development; changes in the hydrological regime of the lower reaches of the Dnieper River have been determined as a result of the destruction of the Kakhovka HPP dam in June 2023, the changes affected all the main factors of the functioning of the aquatic ecosystems of the region; a forecast of changes in the saturation of the Dnieper floodplain with algocenoses after the destruction of the Kakhovka HPP dam in the context of food security in southern Ukraine has been established; the influence of hydrochemical indicators of ponds on the quality of fish stock in conditions of fish breeding plants in southern Ukraine was established; the peculiarities of nutrition of the industrial silver carp herd of the Dnieper Estuary were established; the loss of ecosystem services of the Kakhovka reservoir due to the explosion of the Kakhovka HPP dam in June 2023 was analyzed. The state and prospects for the development of local amateur and industrial fishing were assessed. The impact of a full-scale war on water bodies in southern Ukraine was analyzed, which showed that they are in a negative, unstable ecological state, and some of them are even in a critical state; aspects of optimizing the fishery exploitation of small reservoirs in southern Ukraine were determined; an assessment of the fish Product Description popup.authors Honcharova Olena V. Korzhov Yevhen I. Semeniuk Nataliia Y. Shcherbak Volodymyr I. popup.nrat_date 2025-01-30 Close