Юрасов, С. М.С. М.ЮрасовКузьмина, В. А.В. А.Кузьмина2026-01-072026-01-072017Юрасов С. М., Кузьмина В. А. Перспективи використання Сасика. Фізична географія та геоморфологія. 2017. Вип. 4 (88). С. 60-68.УДК 504.4https://ir.library.knu.ua/handle/15071834/9496В роботі виконаний аналіз якості води водосховища Сасик для рибогосподарських потреб та як об’єкта для купання, занять спортом, відпочинку населення за період з 1990 по 2017 рр. Надано характеристику видового різноманіття риб в тому числі промислових видів, вилову за періоди 1981-1990 та 2006-2016 рр. Розраховано прибутки від вилову та зроблено порівняння із прибутками за попередні періоди і до зміни режиму опреснінням. На підставі висновків зроблено пропозиції щодо майбутнього Сасика.During the centuries, Sasyk existed like a salty estuary of periodically open type. After separating this lake with a dam from the sea in 1978 and connecting it with the Danube by canal, it was transformed into a freshwater reservoir, which is the reservoir storage within the Danube-Dniester irrigation system. As a result, Sasyk ceased to be considered as an object for irrigation purposes. Lack of the water exchange with the sea caused an accumulation of pollutants in the reservoir. That`s why today it`s considering the question about recovery of Sasyk to the original state of a salty estuary. However, during the time of being as a freshwater reservoir Sasyk acquired a large fishery significance. Today is solving a question: “Which Sasyk should be: a freshwater reservoir or a salty estuary?” After desalination during 80th in Sasyk reservoir the number of species of ichthyofauna practically didn`t change, but quantity of species that have an industrial significance has become much larger. According to the data of [2] and Regional water resources management the quality assessment of the Sasyk water reservoir has shown that Sasyk`s water environment in different years didn`t meet the requirements of the fishery norms for the content of many substances, therefore it can be characterized as “dirty” or “very dirty”. Together with a fishery, Sasyk should also be considered as a recreational facility, so sanitary norms were used for assessment the quality of water. The quality of Sasyk water doesn`t meet the requirements of the sanitary norms for the content of substances with sanitary-toxicological limiting sign of harm (nitrites and sodium), irons, chlorides and phenols. Recreational water quality assessment is similar to fishery: “dirty” or “very dirty”. Profit calculations from fish catches showed its increase in 2,5-4 times after desalination. The freshwater reservoir Sasyk is more effective fishing object than a salty estuary. However, the reservoir water quality is worse. Removal of the dam will change it situation to the opposite. In the prevailing situation, the most optimal solution will be preserving Sasyk in its current state – the freshwater reservoir. To improve an ecological condition it is necessary: 1) for several years to conduct regular monitoring for the water quality in the reservoir at different points and monitoring the regime of water level; 2) to make a device for sanitary discharge of water in order to create an external water exchange in the reservoir; 3) to develop the regime of water discharge to prevent an accumulation of pollutants in the reservoir.ukякість водипоказник якостівилов рибиприбуток від виловуwater qualityquality indicatorfish catchesprofit from fish catchesСтаття