Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
53
4
2017
Characteristics of the Ecological State of a Cooling Pond of a Nuclear Power Station Based on Bioindication Indices of Phytoplankton
3-21
10.1615/HydrobJ.v53.i4.10
A. A.
Protasov
Institute of Biodiversity and Ecosystem Studies of Bulgarian Academy of Sciences, Sofia, Bulgaria; Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, 04210, Ukraine
S. S.
Barinova
Institute of Evolution, Haifa University, Mount Carmel, 31905 Haifa, Israel
T. N.
Novoselova
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
bioindication
phytoplankton
algae-indicators
ecological
factors
cooling pond
NPS
Results of the study of phytoplankton of the cooling pond of the Khmelnitskiy Nuclear Power Station are given in the paper. It has been shown that the distribution of phytoplankton in the cooling is non-uniform, which is
conditioned by water circulation and by the influence of wind. Characteristics of the ecological state of the cooling pond are given based on the bioindication indices of plankton algae, including the type of their habitat, their relation to thermal, hydrodynamic, and oxygen regime, pH, organic matter and nutrients content, and also the type of their nutrition. Results of the ecological characteristics of the cooling pond based on the bioindication indices of
phytoplankton were compared to those obtained using the procedure of the ecological assessment of the quality of surface waters.
Phytomicrobenthos of Brackishwater Bays of the Kiliya Delta of the Danube River
22-35
10.1615/HydrobJ.v53.i4.20
E. Sh.
Koziychuk
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
phytomicrobenthos
the Kiliya delta of the Danube River
brackishwater bays
water salinity
dominant complex
Results of the study of phytomicrobenthos in water bodies differing in their salinity (from 2.00 to 12.00‰) are given in the paper. In brackishwater bays of the Kiliya delta of the Danube River, relationship was established between the
intensity of benthic microalgae development and water salinity: 2.00–5.00, 6.00–8.00, and 9.00–12.00‰. At water salinity of 2.00–5.00‰, species richness, numbers, and biomass of phytomicrobenthos increased at the expense of the
development of freshwater oligohalobes, whereas the content of brackishwater mesohalobes decreased. The increase in water salinity to 9.00–12.00‰ was accompanied by the increase in phytomicrobenthos species richness, numbers,
and biomass at the expense of the development of its brackishwater and marine forms. In this case, the contribution of freshwater oligohalobes was rather low.
At water salinity of 6.00–8.00‰, the intensity of phytomicrobenthos development and its species richness were minimal probably as a result of the influence of the zone of "critical salinity" on benthic microalgae. Both
freshwater and brackishwater forms of phytomicrobenthos were found.
Swimming Performance of Juveniles of Some Freshwater Fishes as Index of Transition to Nekton Mode of Life
36-42
10.1615/HydrobJ.v53.i4.30
I. I.
Abramiuk
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
S. A.
Afanasyev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
plankton
nekton
rheoreaction
critical swimming speed
Reynolds number
perch
bleak
Swimming performance of perch and bleak larvae was investigated. It has been found that the studied species show the resistance to flow from the early life
stages: the pelagic perch larvae at A2, and bleak – at B stage, just after detachment from substrate. The critical swimming speed in perch fry were lower than in bleak of the same length. Estimated values of Reynolds number have shown that by the hydrodynamic criterion (reaching Re = 5,0·103), perch larvae turn to nekton at approximate length of 22 mm, and bleak—of 15 mm. This transition is supported by morphological changes which reduce hydrodynamic resistance of the fish body: the fin fold disappears, scale develops, the body gets more streamlined shape.
Zooplankton of the Estuarine Section of the Vita River and Its Energetic Balance
43-53
10.1615/HydrobJ.v53.i4.40
Yu. F.
Gromova
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kyiv, 04210, Ukraine
V. V.
Trylis
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kiev, Ukraine
zooplankton
energetic balance
biomass
production
decomposition
The elements of zooplankton energetic balance in the estuarine section of the Vita River (the Dnieper River basin) were studied in the thickets of macrophytes
and in the sections free of vegetation. The role of various taxonomic and trophic groups was determined. The contribution of zooplankton to the energetic balance
of the ecosystem of the estuarine section of the Vita River was investigated in the years differing in water level.
Morphobiological Characteristic of the Siberian Gudgeon Gobio cynocephalus from the upper Section of the Lena River
54-61
10.1615/HydrobJ.v53.i4.50
B. E.
Bogdanov
Limnological Institute of the Siberian Branch of RAS Irkutsk, RF
S. Yu.
Petukhov
Limnological Institute SB RAS
Irkutsk, RF
Siberian gudgeon Gobio cynocephalus
morphology
growth
feeding
the Lena River
East Siberia
Paper deals with first data on morphology and biology (size-age characteristics and food composition) of the Siberian gudgeon Gobio cynocephalus in the upper section of the Lena River (East Siberia).
Production of Higher Aquatic Plants of the Kremenchuk Reservoir (Dnieper River, Ukraine)
62-68
10.1615/HydrobJ.v53.i4.60
V. A.
Konogray
Cherkasy National University
Cherkasy, Ukraine
higher aquatic plants
phytomass
spatial distribution of
phytomass
use of phytoresources
The article deals with areas of different plants communities, their spatial distribution and total phytomass within the Kremenchuk reservoir (the Dnieper River, Ukraine). Primary production of the plant communities was calculated.
Principles of sustainable use of phytoresources were proposed.
Chromium in Hydroecosystems and its Impact on the Aquatic Biota (a Review)
69-84
10.1615/HydrobJ.v53.i4.70
D. O.
Yanovych
L'viv National University of Veterinary Medicine and Biotechnologies L'viv, Ukraine
T. M.
Shvets
Institute of Fishery Kyiv, Ukraine
chromium
hydroecosystems
hydrochemistry
toxicity
hydrobionts
invertebrates
fishes
Data concerning properties of chromium and its compounds, pathways of their income to the water bodies and peculiarities of their fate in hydroecosystems have been summarized. The role of chromium as biophilous trace element for vital processes of aquatic flora and fauna was described. The importance of the hexavalent chromium content monitoring in the aquatic environment in view of its toxic properties was substantiated. Main effects of the
pollutant on aquatic organism were reported.
Protein-Nucleic Metabolism in Freshwater Fishes under Impact of Ferum Ions
85-93
10.1615/HydrobJ.v53.i4.80
O. O.
Rabcheniuk
Ternopil Teachers'-Training University Ternopil, Ukraine
V. Ya.
Biyak
Ternopil Teachers' Training University
Ternopil, Ukraine
V. O.
Khomenchuk
Ternopil Volodymyr Hnatiuk National Teachers-Training University
Ternopil, Ukraine
V. Z.
Kurant
Ternopil Volodymyr Hnatiuk National Teachers-Training University
Ternopil, Ukraine
proteins
nucleic acids
metabolism
carp
pike
iron ions
The impact of elevated concentration (2 and 5 MPC) of Fe3+ ions in water on content of nucleic acids and proteins in liver and muscles of carp (Cyprinus carpio L.) and pike (Esox lucius L.) was studied. Metabolic activity of the nucleic acids and proteins in fishes' tissues under experimental conditions was shown to change. Mechanisms of biochemical adaptation of fishes to the toxic impact of heavy metals and role of proteins and nucleic acids in this process are considered.
Content and Distribution of Heavy Metals among Their Dissolved and Suspended Forms in the Water of the Rivers of the Tisza River Basin
94-112
10.1615/HydrobJ.v53.i4.90
P.N.
Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
M. P.
Skobley
State Ecological Inspection
Zakarpatye Region
Uzhgorod, Ukraine
V. A.
Zhezherya
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
forms of occurrence
cadmium
copper
lead
zinc
nickel
chromium
rivers of the Tisza River basin
Results of the study of the content of the dissolved and suspended forms of some metals in the water of the rivers of the Tisza River basin in 2015–2016 are given in the paper. It has been found that in the water of the studied rivers the total concentration of Cd, Cu, Pb, Zn, Ni, and Cr varied over a wide range and accounted for 0.03–5.90, 0.9–18.4, 0.7–16.5, 2.3–52.2, 0.3–21.7, and 0.1–8.0 μ;g/L. The concentration of the dissolved form of metals (most bioavailable to hydrobionts) accounted for 0.04–0.61, 0.06–11.5, 0.5–8.6, 1.0–36.3, 0.1–15.3, and 0.03–5.9 μ;g/L, respectively. Previously the concentration of Cu, Pb, and Zn
was higher, especially after the accident at the metal mining enterprises, when their content in the dissolved form accounted for 30–110, 16–24, and 40–120 μ;g/L. It has been found that Cd and Cr migrate mainly in the composition of
suspended matter, the contribution of which to their total content accounts for 40.0–81.7 and 25.5–64.7%. Other studied metals migrate mainly in the dissolved state. A relative content of slightly absorbed fraction of Cd, Cu, Pb, Zn, Ni, and Cr in the composition of suspended form was on the average 53.3, 23.2, 29.2, 28.3, 22.0, and 12.2%. The contribution of the studied metals to the composition
of mineral particles lattice on the average accounted for 18.7, 62.9, 49.4, 40.2, 30.8, and 55.0%, respectively. Preliminary investigations have shown that the studied metals, with the exception of copper, occurring in the dissolved form are registered mainly in the composition of neutral fraction (52–83%). A relative
content of copper in the composition of anionic fraction is about 55% of its dissolved form.