Фітопланктон Куяльницького лиману у 2015 – 2017 рр.
Ескіз недоступний
Дата
2017
Науковий керівник
Укладач
Редактор
Назва журналу
Номер ISSN
Номер E-ISSN
Назва тому
Видавець
Харківський національний університет імені В.Н. Каразіна
Анотація
Мета. Отримання детальної інформації про сучасний видовий склад і кількісні характеристики фі-топланктону на акваторії лиману в період з березня 2015 р. по березень 2017 р., тобто в період впливу трансферу водних мас з Одеської затоки. Метод. Згущення зібраних зразків здійснювали седиментацій-ним методом. Зразки води, відібрані в умовах цвітіння мікроводоростей, згущенню не підлягали. Резуль-тати. У 2015-2017 рр. на всій акваторії лиману склад фітопланктону був монодомінантним: розвивалася зелена водорість Dunaliella salina (Dunal) Teodor. у двох різних життєвих формах. У деяких зразках води були зафіксовані бентопланктонні діатомові водорості, зелені та ціанобактерії. За період досліджень ли-ману в 36 зразках води було зареєстровано цвітіння D.salina, а також спостерігали поодинокі випадки цвітіння діатомових та зелених водоростей. За період 2015-2017 рр. загальне число видів фітопланктону на північній і центральній частинах лиману сягало 23, та 69 видів реєстрували в південній частині. Ви-сновки. Було встановлено, що фітопланктон Куяльницького лиману має добру здатність швидко адапту-ватися до зменшень солоності внаслідок поповнення лиману водою з Одеської затоки, що є головним чинником частих цвітінь води у 2015-2017 рр.
The sharp change in the salinity of the Kuyalnitsky estuary in the second half of the twentieth century. Caused a significant reorganization of its ecosystem, which led to loss of fishing, deteriora-tion of the quality of water. At the beginning of the XXI century the study of the Kuyalnitsky estuary biota, which exists in hypergalian conditions, was unsystematic, so information on the quantitative characteristics of phytoplankton and its distribution in the estuary is extremely limited. Purpose. To obtaining detailed information about current composition and quantitative characteristics of phytoplankton spe-cies in the estuary during the period from March 2015 to March 2017, i.e. when influenced by the transfer of sea water from the Odessa Bay. Methods. Concentration of the collected samples was done by sedimentation meth-od. The samples collected during microalgal blooms have not been concentrated. Results. The phytoplankton was monodominant all over the estuary in 2015 – 2017 due to development of Dunaliella salina (Dunal) Teo-dor., which was presented by two different life forms. Some water samples contained benthoplankton species of diatomic algae, as well as Chlorophyta and Cyanobacteria. During the period of study algae blooms of D. salina was registered in 36 water samples; some cases of Bacillariophyta and Chlorophyta blooming were observed as well. During the period 2015-2017 the total number of phytoplankton species in the northern and central part of the estuary reached 23; in the southern part 69 species were registered. Conclusions. It has been established that phytoplankton of Kuyalnik Estuary can quickly adapt to salinity reduction caused by the filling of the estuary with sea water, which is one of the reasons of frequent algal blooms in 2015-2017.
The sharp change in the salinity of the Kuyalnitsky estuary in the second half of the twentieth century. Caused a significant reorganization of its ecosystem, which led to loss of fishing, deteriora-tion of the quality of water. At the beginning of the XXI century the study of the Kuyalnitsky estuary biota, which exists in hypergalian conditions, was unsystematic, so information on the quantitative characteristics of phytoplankton and its distribution in the estuary is extremely limited. Purpose. To obtaining detailed information about current composition and quantitative characteristics of phytoplankton spe-cies in the estuary during the period from March 2015 to March 2017, i.e. when influenced by the transfer of sea water from the Odessa Bay. Methods. Concentration of the collected samples was done by sedimentation meth-od. The samples collected during microalgal blooms have not been concentrated. Results. The phytoplankton was monodominant all over the estuary in 2015 – 2017 due to development of Dunaliella salina (Dunal) Teo-dor., which was presented by two different life forms. Some water samples contained benthoplankton species of diatomic algae, as well as Chlorophyta and Cyanobacteria. During the period of study algae blooms of D. salina was registered in 36 water samples; some cases of Bacillariophyta and Chlorophyta blooming were observed as well. During the period 2015-2017 the total number of phytoplankton species in the northern and central part of the estuary reached 23; in the southern part 69 species were registered. Conclusions. It has been established that phytoplankton of Kuyalnik Estuary can quickly adapt to salinity reduction caused by the filling of the estuary with sea water, which is one of the reasons of frequent algal blooms in 2015-2017.
Опис
Ключові слова
Куяльницький лиман, фітопланктон, гіпергалинні умови, Kuyalnik Estuary, phytoplankton, hyper saline condition
Бібліографічний опис
Людина та довкілля. Проблеми неоекології. № 1-2 (27). – 2017. –С. 52 – 61. ISSN: 2415-7678