The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamics

The aim of the study was to determine the species composition and dynamics of the phytoplankton community of Koprinka reservoir. We have identified a total of 109 taxa assigned to 6 divisions including Chlorophyta (37), Ochrophyta (26), Cyanoprokaryota (22), Euglenophyta (11), Streptophyta (11) and...

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Main Authors: Kostadin Dochin, Angelina Ivanova, Ivan Iliev
Format: Article
Language:English
Published: Plovdiv University Press 2017-05-01
Series:Journal of BioScience and Biotechnology
Subjects:
Online Access:https://editorial.uni-plovdiv.bg/index.php/JBB/article/view/134
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author Kostadin Dochin
Angelina Ivanova
Ivan Iliev
author_facet Kostadin Dochin
Angelina Ivanova
Ivan Iliev
author_sort Kostadin Dochin
collection DOAJ
description The aim of the study was to determine the species composition and dynamics of the phytoplankton community of Koprinka reservoir. We have identified a total of 109 taxa assigned to 6 divisions including Chlorophyta (37), Ochrophyta (26), Cyanoprokaryota (22), Euglenophyta (11), Streptophyta (11) and Pyrrhophyta (2). The highest phytoplankton biomass (PhB) and numbers (PhN) and the lowest species richness were detected in September. In October with the decrease of the PhB the species diversity has increased. The highest species richness was observed at station 3, situated in the riverine area, with the phytoplankton abundance being significantly higher compared to the other two stations. The species Hariotina polychorda dominated in the water samples in the summer at all stations. In the early autumn, a bloom of the potentially toxic species Microcystis wesenbergii was detected, which is an indicator for eutrophication process in the reservoir. Cluster analysis (CA) based on the phytoplankton composition isolated the samples from each sampling periods in a separate water cluster, characterized by significant spatial heterogeneity. The phytoplankton species composition, and the values for biomass, and chlorophyll a are evident for the eutrophic state of the reservoir.
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spelling doaj.art-ed228618070e401fb82a26c29b39029f2022-12-22T01:01:52ZengPlovdiv University PressJournal of BioScience and Biotechnology1314-62381314-62462017-05-01617382The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamicsKostadin Dochin0Angelina Ivanova1Ivan Iliev2Institute of Fisheries and Aquaculture, Department of Aquaculture and Water Ecosystems, 248 Vasil Levski Str., Plovdiv 4003, Bulgaria.Institute of Fisheries and Aquaculture, Department of Aquaculture and Water Ecosystems, 248 Vasil Levski Str., Plovdiv 4003, Bulgaria.University of Plovdiv „Paisii Hilendarski“, Faculty of Biology, Department of Biochemistry and Microbiology, 24 Tzar Asen Str., Plovdiv 4000, Bulgaria.The aim of the study was to determine the species composition and dynamics of the phytoplankton community of Koprinka reservoir. We have identified a total of 109 taxa assigned to 6 divisions including Chlorophyta (37), Ochrophyta (26), Cyanoprokaryota (22), Euglenophyta (11), Streptophyta (11) and Pyrrhophyta (2). The highest phytoplankton biomass (PhB) and numbers (PhN) and the lowest species richness were detected in September. In October with the decrease of the PhB the species diversity has increased. The highest species richness was observed at station 3, situated in the riverine area, with the phytoplankton abundance being significantly higher compared to the other two stations. The species Hariotina polychorda dominated in the water samples in the summer at all stations. In the early autumn, a bloom of the potentially toxic species Microcystis wesenbergii was detected, which is an indicator for eutrophication process in the reservoir. Cluster analysis (CA) based on the phytoplankton composition isolated the samples from each sampling periods in a separate water cluster, characterized by significant spatial heterogeneity. The phytoplankton species composition, and the values for biomass, and chlorophyll a are evident for the eutrophic state of the reservoir.https://editorial.uni-plovdiv.bg/index.php/JBB/article/view/134phytoplanktonspecies compositionreservoirbloomspotentially toxic specieseutrophication process
spellingShingle Kostadin Dochin
Angelina Ivanova
Ivan Iliev
The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamics
Journal of BioScience and Biotechnology
phytoplankton
species composition
reservoir
blooms
potentially toxic species
eutrophication process
title The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamics
title_full The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamics
title_fullStr The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamics
title_full_unstemmed The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamics
title_short The phytoplankton of Koprinka Reservoir (Central Bulgaria): species composition and dynamics
title_sort phytoplankton of koprinka reservoir central bulgaria species composition and dynamics
topic phytoplankton
species composition
reservoir
blooms
potentially toxic species
eutrophication process
url https://editorial.uni-plovdiv.bg/index.php/JBB/article/view/134
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