Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
55
4
2019
Structure of Dominance/Diversity of Benthic Macroinveretebrate Communities in the Carpathian Rivers
3-15
10.1615/HydrobJ.v55.i4.10
S. A.
Afanasyev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ye. N.
Lietytska
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
macroinvertebrates
structural parameters
Carpathian mountainous rivers
The paper presents results of studies of the macroinvertebrates communities' structure in the Carpathian mountainous rivers. In different rivers the communities of different types and peculiar structure are formed, and dominant complexes also were different. In the gradient of the rivers' elevation and size, the shape of the dominance/diversity curves gradually changes. For the large rivers on the foothills the curves close to type A are character, and the curves in small rivers in the highlands can be conditionally assigned to B type, whereas in other rivers the shape of the type C is character.
Variability in the Numbers and Dimensional-Mass and Phenotypic Structure of Mytilus galloprovincialis Benthic Populations in the Coastal Waters of the Northwestern Part of the Black Seaf
16-25
10.1615/HydrobJ.v55.i4.20
I. A.
Govorin
Institute of Marine Biology National Academy of Sciences of Ukraine Odessa, Ukraine
mussels
Mytilus galloprovincialis Lam.
benthic populations
numbers
dimensional-mass characteristics
phenotypic structure of populations
the northwestern part of the Black Sea
the Southern Bug and Odessa regions
wintertime
The structure of Mytilus galloprovincialis (Lamarck, 1819) populations was investigated in three areas of water of the northwestern part of the Black Sea (near Adzhiyask Cape, near the estuary of the Grigoryevskiy liman, and near the Odessa coast) in summer 2016 and from autumn 2016 until spring 2017 (October - April). Seasonal variability in the numbers of mollusks, in their dimensional and phenotypic composition in the populations, and in the total and individual mass of animals, including the ratio between various components of body mass, was investigated at each station. 1t has been shown that in wintertime the numbers and biomass of mollusks varied over a wide range, which was accompanied by a decrease in mussel numbers and in the individual mass of animals. 1n this case, the phenotypic structure of animal populations and their dimensional composition remained almost unchanged from October until April (near Adzhiyask Cape) or changed insignificantly. 1n this case, the ratio between the raw and dry mass of the animal changed insignificantly, which is indicative of almost the same trophic conditions and fatness of the animals in the studied regions. At the same time, the mussels taken near Adzhiyask Cape were characterized by the lowest mass of their shells, which can be conditioned by a low degree of salinity of coastal marine waters subjected to the influence of the runoff of the Southern Bug and Dnieper rivers.
Epiphyton as Bioindicator of the State of the Upper-Cascade Dnieper Reservoirs
26-37
10.1615/HydrobJ.v55.i4.30
P. D.
Klochenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
T. F.
Shevchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
epiphyton
the Kiev Reservoir
the Kanev Reservoir
bioindication
Bioindication of the ecological state of the Kiev and Kanev reservoirs was carried out based on the indicator characteristics of epiphyton. Results of the ecological analysis have shown that benthic and planktonic-benthic organisms were represented by the largest number of species. Algal species - indicators of slowly flowing and moderately warm waters, alkaliphiles and also indifferent organisms in relation to water salinity prevailed in epiphyton of the studied reservoirs. Among diatoms - indicators of the type of nutrition, nitrogen-autotrophic taxa tolerating elevated concentrations of organically bound nitrogen were represented by the largest number of species. Eurysaprobes and β-mesosaprobionts predominated among the indicators of organic contamination, whereas eutraphentic organisms - among the indicators of the trophic state. It has been found that in the Kanev Reservoir the contribution of eutraphentic organisms, nitrogen-autotrophic taxa tolerating elevated concentrations of organically bound nitrogen, and eurysaprobes was higher than that in the Kiev Reservoir. This fact is indicative of a higher degree of contamination of the Kanev Reservoir by nutrients and organic matter.
Regularities of Primary Production Formation in River Ecosystems (the Basins of the Pripyat' and Teterev Rivers, Ukraine)
38-54
10.1615/HydrobJ.v55.i4.40
Yu. S.
Shelyuk
Ivan Franko Zhytomyr State University, Department of Botany, Bioresources and
Biodiversity Conservation,
40 Velyka Berdychivska Str., Zhytomyr 10008, Ukraine
primary production
organic matter decomposition
phytoplankton
river ecosystems
biotic balance
The formation of phytoplankton primary production in the rivers of the Pripyat' and Teterev basins differing in their morphometric characteristics, hydrochemical regime, and trophic status has been studied for the first time. The obtained results suggest that the tributaries of the Pripyat' and Teterev rivers significantly differ in the intensity of primary production, which is determined by phytoplankton biomass, by the total content of nitrogen and phosphorus in the water, and also by the influence of such abiotic factors as solar radiation and water temperature. Relationship was established between the intensity of photosynthesis and water transparency and dissolved oxygen content. At the same time, the intensity of photosynthesis depended inversely on water coloration. This fact suggests that the processes of production in watercourses of the Pripyat' and Teterev basins significantly influence environmental conditions, including light and gas regimes.
Chimonodinium lomnickii (Wolosz.) Craveiro et al. (Dinoflagellata) - Agent of Winter Water "Bloom" in the Odesa Bay (the Black Sea)
55-62
10.1615/HydrobJ.v55.i4.50
O. F.
Krakhmanyi
Institute of Evolutionary Ecology National Academy of Sciences of Ukraine Kyiv, Ukraine
G. V.
Terenko
Ukrainian Scientific Center of Marine Ecology Odesa, Ukraine
Dinoflagellata
Dinophyta
Chimonodinium lomnickii
Odesa bay
the Black Sea
Paper deals with the first finding of dinoflagellates Chimonodinium lomnickii (Wolosz.) Craveiro et al. in the winter plankton of the Odesa Bay of the Black Sea. This species was previously known only from the fresh water bodies. Over the winter period 2016-2018 it was quite abundant - up to 1.43·106 cells/dm3 and 9.35 g/m3. The detailed morphological description of C. lomnickii, its distribution and ecological features are given. The work is illustrated with original photographs and pictures.
Ecological-Physiological Features of Native and Invasive Fish Species in Small Rivers under Different Degree of Transformation
63-74
10.1615/HydrobJ.v55.i4.60
D. V.
Medovnyk
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
small rivers
anthropogenic transformation
native and invasive species
ecological-physiological features
The ecological, population and morpho-physiological adaptation features of aboriginal common gudgeon (Gobio gobio (L.), 1758) and invasive Prussian carp (Carassius auratus (L.), 1758) in small rivers with different degree of urban transformation were investigated. It was found that aboriginal short-cycle rheophilous common gudgeon, which is typical for ichthyocenoses of the small rivers, did not undergo significant changes of ecological and physiological characteristics, whereas invasive mid-cycle limnophilous Prussian carp in the studied watercourses was presented by the short-cycle mold-shaped form. The considerable adaptive potential of these fishes for disturbance the hydrological regime in the small river sections, isolated by hydrotechnical construction, has been established.
Oil Pollution of Water and Bottom Sediments of the Kyiv Section of the Kaniv Reservoir under the Urban Impact
75-80
10.1615/HydrobJ.v55.i4.70
L. O.
Gorbatiuk
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
O. O.
Pasichna
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
M. O.
Platonov
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
S. P.
Burmistrenko
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
J. N.
Bhakta
University of Kalyani Kalyani, West Bengalia, India
oil
oil products
aquatic ecosystem
bottom sediments
Kyiv
Kaniv reservoir
The degree of pollution of water and bottom sediments of the Kaniv reservoir by oil products under the influence of Kyiv megapolis has been investigated. Numerous local pollution zones and possible sources of oil hydrocarbons income to the ecosystem of the reservoir resulting in its anthropogenic transformation have been established.
Radioresistance, Radioadaptation, Reducing of Life and Factors, Modifying Responses of Aquatic Biosystems to Chronic Ionizing Irradiation
81-93
10.1615/HydrobJ.v55.i4.80
M. I.
Kuzmenko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
biotic components of ecosystems
ionizing irradiation
responses
radioadaptation
radioresistance
reducing of life duration
modifying factors
The paper deals with analysis of radioresistance, radioadaptation and radiation-induced premature aging and reducing of life duration under chronic ionizing irradiation and the influence of the modifying factors. Various reactions of biosystems to irradiation are ultimatively manifested as oppositely directed and interrelated damage and rehabilitation processes. Post-radiation rehabilitation of biotic components of different hierarchical levels occurs on the basis of their multilevel structural and functional organization and mechanisms of adaptive reactions.
Improvement in the Hydrochemical Regime of Small Urban Water Bodies under Conditions of Artificial Aeration (on the Example of Lake Telbin)
94-110
10.1615/HydrobJ.v55.i4.90
V. A.
Zhezherya
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
P.N.
Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ye. P.
Belous
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
hydrochemical regime
small water bodies
urban territories
dissolved oxygen
inorganic forms of nitrogen and phosphorus
metals
artificial aeration
aerobic and anaerobic conditions
Lake Telbin
Small water bodies located within urban territories are often subjected to the influence of anthropogenic load, which manifests itself in the deterioration of their hydrochemical regime, eutrophication, and intensive development of phytoplankton. Dissolved oxygen deficiency and the formation of anaerobic zones in the hypolimnion of the above-mentioned water bodies are environmental hazards. The artificial aeration of small water bodies is one of the ways of the improvement in their oxygen regime, which was demonstrated on the example of Lake Telbin located within the territory of Kiev. The influence of artificial aeration on the state of the water was judged from such significant indices as water temperature, pH value, dissolved oxygen content, the content of inorganic forms of nitrogen and phosphorus, and the content of some metals (Fe, Mn, Cu, Zn, and Pb). In the absence of artificial aeration, dissolved oxygen deficiency is registered in the lake from early spring until late autumn. Under anaerobic conditions at the depths of more than 2-3 m, the concentration of ammonium, inorganic phosphorus, iron, and manganese incoming from bottom sediments significantly increases. Under conditions of artificial aeration, the state of oxygen regime is improved; dissolved oxygen deficiency is observed in deeper layers of water (5.5-6.5 m), whereas high concentrations of the above mentioned chemical components are registered only in the near-bottom layer of water. The efficiency of aeration depends on a depth of aerator submission, and also on its operating conditions.