Methodology of Assessing the Degree of the Influence of Anthropogenic Factors on Phytoplankton of Urban Water Bodies

Kravtsova, Olha; Shcherbak, V. I.

doi:10.1615/hydrobj.v56.i5.10

Cited by 4 publications

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“…В Україні проводилися багаторічні дослідження фітопланктону водойм м. Києва (Shcherbak, Semenyuk, 2007, а також природоохоронних територій міст Києва, Житомира, Білої Церкви (Shcherbak et al, 2018;Kravtsova, Shcherbak, 2020).…”

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Structural and functional characteristics of phytoplankton, algal mats, detritus and water quality under main abiotic factors in urban ponds (case study of urban settlement Hostomel, Bucha district, Kyiv Region, Ukraine). Report І. Species and taxonomic composition, ecological diversity of phytoplankton and filamentous algal mats characteristics under main abiotic factors

Shcherbak¹,

Semenyuk²

2023

Algologia

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The paper considers species and taxonomic composition of phytoplankton and algal mats in ponds of Hostomel urban settlement under effect of main abiotic factors. The research was carried out in May 2021. The ponds under study are shallow and the photic zone occupies the entire water column. The dissolved oxygen content was high. According to nutrient content the ponds are eutrophic. Planktonic algal communities were marked by high diversity. The identified algae referred to 8 phyla, 13 classes, 29 orders, 49 families, 87 genera and 134 species, represented by 136 infraspecific taxa. The floristic diversity at the phylum level was mainly formed by Chlorophyta, Bacillariophyta and Cyanobacteria, at the class level – Chlorophyceae, Bacillariophyceae and Cyanophyceae, at the order level – Sphaeropleales, Euglenida, Chloreallales and Bacillariales, at the family level – Scenedesmaceae, Euglenidae, Bacillariaceae, Selenastraceae and Chlorellaceae, at the genus level – Desmodesmus, Nitzchia, Monoraphidium, Trachelomonas and Euglena. According to biotopic preference planktonic and planktonic-benthic forms prevailed. In Pond ІІІ, floating algal mats were observed. They appeared when benthic communities composed of Charophyta, Bacillariophyta, Chlorophyta and Euglenozoa rose to the water surface. Their cell count reached 28168–368149 thousand cells∙m–2, biomass – 21–362 g ∙ m–2. Algal mats caused a local negative effect due to water column shadowing. High diversity of algal communities makes it possible for pond ecosystems to function even under human impact.

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Section: вступunclassified

Structural and functional characteristics of phytoplankton, algal mats, detritus and water quality under main abiotic factors in urban ponds (case study of urban settlement Hostomel, Bucha district, Kyiv Region, Ukraine). Report І. Species and taxonomic composition, ecological diversity of phytoplankton and filamentous algal mats characteristics under main abiotic factors

Shcherbak¹,

Semenyuk²

2023

Algologia

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An assessment of the aquatic environment quality of the urban water bodies using system analysis methods based on integrating remote sensing data and ground information

Tomchenko

Khyzhniak

Kravtsova

et al. 2022

Current Directions in Water Scarcity Research

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Structural and functional characteristics of phytoplankton, algal mats, detritus and water quality under main abiotic factors in urban ponds (case study of urban settlement Hostomel, Bucha District, Kyiv Region, Ukraine). Report ІI. Quantitative indicators, dominant complexes of phytoplankton, detritus and water quality of urban ponds

Shcherbak¹,

Semenyuk²

2023

Algologia

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The paper deals with phytoplankton quantitative indicators and dominant complex structure, and dimensional and morphological characteristics of detritus particles in the ponds of Hostomel urban settlement. Water quality has been assessed according to phytoplankton characteristics. The phytoplankton abundance made up 2648.0–113675.0 thousand cells  dm–3, and it was mainly formed by Cyanobacteria. The biomass varied within 3.72–16.53 g  m–3, which is indicative of eutrophic waters. The biomass was dominated by Euglenozoa, Miozoa and Bacillariophyta. The dominant complex according to phytoplankton abundance included small-celled Cyanobacteria, according to biomass – large-celled Euglenozoa, Miozoa and Bacillariophyta with a certain share of Cyanobacteria. Different structures of dominant complexes according to abundance and biomass is an important adaptation mechanism of urban ponds phytoplankton. Phytoplankton’s high primary productivity completely fulfils energetic and trophic demands of aquatic organisms at higher trophic levels, and the unconsumed algal biomass is decomposed and transferred to the water column in the form of organic detritus. The organic detritus particles can be ranged into four classes – from minimal < 30 mcm to maximal > 101 mcm, whose biomass can reach 57.60–62.80 mg  dm–3. It indicates that this biological component is very important in forming energy flow, matter circulation and trophic relations. Water quality assessment according to phytoplankton saprobiological characteristics has shown that χ–ο-saprobic and β-mesosaprobic organisms prevailed in the ponds under study. So, the water bodies can be classified within the range “very clean”–“clean” and “moderately polluted” waters. Unlike most urban ponds, the pond network of Hostomel can be considered a quite safe recreation zone from the ecological point of view and is an attractive green space within the urban landscape.

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Methodology of Assessing the Degree of the Influence of Anthropogenic Factors on Phytoplankton of Urban Water Bodies

Cited by 4 publications

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An assessment of the aquatic environment quality of the urban water bodies using system analysis methods based on integrating remote sensing data and ground information

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