Summer Phytoplankton of Water Bodies of the Dniester Delta (Ukraine) Summer Phytoplankton

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dc.contributor.authorDereziuk, Nataliia V.
dc.contributor.authorДерезюк, Наталя Володимирівна
dc.contributor.authorДерезюк, Наталья Владимировна
dc.date.accessioned2020-09-16T07:42:43Z
dc.date.available2020-09-16T07:42:43Z
dc.date.issued2020
dc.description.abstractThe main characteristics of summer phytoplankton from water bodies of the Dniester Delta (species composition, number, biomass, morphological and functional parameters), and their changes over a long-term observation period are presented. Phytoplankton samples were taken in mid-July between 2006-2019 in the Kuchurgan Reservoir, four large flooded lakes, and the Dniester and Turunchuk rivers. In total, 376 phytoplankton species were found over the 14 year period of monitoring; their complete list is given with the indication of cell volumes of the species for each water body studied. Chlorophyta, Bacillariophyta, and Cyanobacteria dominate the populations. It was noted that, with the influx of large volumes of water into the floodplains in 2008 and 2013, the number of Chlorophyta, Dinophyta and Cyanobacteria increased. Maximum values of water temperature in 2010, 2015 and 2016 caused an increase in the biomass of algae. In the Turunchuk River in 2015, as a result of the water bloom caused by Bacillariophyta, the maximum biomass value was recorded for the entire observation period (413 g•m-3). In recent years, there has been a tendency towards an increase of the biomass of phytoplankton. A large amount of organic matter contributes to siltation of water bodies. The maximum calculated values of the active surface of phytoplankton index (PSI) is consistent with the hydrological conditions in the Dniester Delta (temperature and water level), and with the degree of eutrophication of water bodies. The performed PSI analysis allows us to evaluate the response of autotrophs to changes in climatic conditions, and to develop a scale of environmental status classes for freshwater phytoplankton.uk_UA
dc.identifier.citationInternational Journal on Algae. P. 167-178.uk_UA
dc.identifier.doihttps://doi.org/10.1615/InterJAlgae.v22.i2.60
dc.identifier.urihttps://dspace.onu.edu.ua/handle/123456789/28624
dc.language.isoenuk_UA
dc.relation.ispartofseriesV. 22, Issue 2.
dc.subjectPhytoplanktonuk_UA
dc.subjectspecies
dc.subjectbiomass
dc.subjectspecific surface
dc.subjecttemperature
dc.subjectDniester
dc.subjectTurunchuk
dc.subjectUkraine
dc.titleSummer Phytoplankton of Water Bodies of the Dniester Delta (Ukraine) Summer Phytoplanktonuk_UA
dc.typeArticleuk_UA
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