Structural Organization of Zooplankton in Transformed Small Rivers

Gromova, Yulia; Afanasyev, S. A.; Shevtsova, L. V.

doi:10.1615/hydrobj.v49.i1.30

Cited by 4 publications

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“…However, studies of the species richness of rotifers in small rivers in the Ukraine (tributaries of the Dnieper River) showed a high species richness of rotifers in natural rivers and in rivers with a periodic alteration of the direction and velocity of the flow. High numbers of rotifer taxa were related to the location of rivers in natural flood land because the species richness of rotifers in the rivers located in flood land that was partially or totally drained (regulated or canalised rivers) was visibly lower [53]. In some of the studied rivers, we identified rotifers typical for pelagic zooplankton, for example, Asplanchna priodonta, Brachionus angularis, Filinia longiseta, Keratella cochlearis, K. quadrata, K tecta, Polyarthra vulgaris and Pompholyx sulcata.…”

Section: Discussionmentioning

confidence: 88%

“…The planktonic animal organisms that constitute part of zooplankton (Cladocera, Copepoda, Rotifera) are indicators of anthropogenic changes in running aquatic environments [42,[50][51][52][53][54][55][56][57][58][59]. However, in both small lowland and highland rivers, the retention time that is required to develop planktonic organisms and to maintain a large abundance of planktonic organisms may be too short.…”

Section: Discussionmentioning

confidence: 99%

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Diversity of Rotifers in Small Rivers Affected by Human Activity

et al. 2022

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The rivers flowing through Upper Silesia and the adjacent areas (Southern Poland) are affected by various anthropogenic pressures including urbanisation, agriculture and animal husbandry, as well as industry (e.g., mining), which are reflected in the measured physical and chemical water parameters. The species composition of rotifers relative to a variety of microhabitats was studied in eight small rivers of this region in 2017. Our research is a comprehensive and up-to-date analysis that focuses on the rotifers in small rivers and shows the diversity of rotifers relative to the microhabitats and environmental variables. The diversity of rotifers ranged from 0 to 23 taxa in individual samples. In the studied rivers, 129 taxa of rotifers were found. Notommata groenlandica, a species that has not been recorded in the country for 100 years, was found in two rivers. The Kruskal–Wallis one-way ANOVA and Dunn’s multiple comparison post hoc tests revealed statistically significant differences in the median number of rotifer taxa between the abiotic types of rivers, rivers, sampling sites, microhabitats and seasons. A multiple regression analysis revealed a significant relationship (correlation) between the number of rotifer taxa, and the concentration of nitrites, total dissolved solids and dissolved oxygen in the water.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Diversity of Rotifers in Small Rivers Affected by Human Activity

et al. 2022

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Effects of the High-Pressure Bratsk Hydroelectric Power Station on the Zooplankton of the Bratsk Reservoir

Gerasimov,

Poddubnaya,

Vakhnenko

et al. 2023

Inland Water Biol

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The Role of Environmental Factors in the Formation of Zooplankton in Tributaries of Lake Ladoga (Russia)

Курашов¹

2017

Appl. Ecol. Env. Res.

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Kurashov et al.: The role of environmental factors in the formation of zooplankton in tributaries of Lake Ladoga - Abstract. The role of environmental factors in the formation of zooplankton in tributaries of Lake Ladoga is still poorly investigated. The authors aimed at exploring composition and quantitative patterns of zooplankton development in the major tributaries of Ladoga and assessing the impact of environmental factors and features of river catchment basins on the parameters of zooplankton development. A total of 137 taxa ranking below genus were identified (56 species and subspecies of Rotifera, 57 of Cladocera, 24 of Copepoda). Species composition and patterns of quantitative development cannot be explained by any environmental factors or their combination. It is impossible to determine groups of rivers with similar patterns of zooplankton development basing on the composition and abundances of individual zooplankton species. River clustering based on hydrochemical and hydrological parameters and features of catchment basins provides an opportunity to distinguish groups of similar rivers. Total abundances of copepoda, cladocera, and rotifera in the rivers are closely associated with certain combinations of studied physiographic parameters. Physiographic factors, namely, the catchment basin area, water discharge, and lake percentage on the territory of the catchment basin, are the most important in the level of quantitative development of Copepoda, Rotifera, and Cladocera in tributaries of Lake Ladoga.

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Structural Organization of Zooplankton in Transformed Small Rivers

Cited by 4 publications

References 0 publications

Diversity of Rotifers in Small Rivers Affected by Human Activity

Diversity of Rotifers in Small Rivers Affected by Human Activity

Effects of the High-Pressure Bratsk Hydroelectric Power Station on the Zooplankton of the Bratsk Reservoir

The Role of Environmental Factors in the Formation of Zooplankton in Tributaries of Lake Ladoga (Russia)

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