Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
42
6
2006
Hydroecological Lessons of the Disaster at the Chernobyl Nuclear Power Plant
3-34
10.1615/HydrobJ.v42.i6.10
V. D.
Romanenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
D. I.
Gudkov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
V. G.
Klenus
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
V. V.
Beliayev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
Ye. N.
Volkova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
M. I.
Kuz'menko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Z. O.
Shirokaya
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
The review presents results of original in situ investigations of the transformation of physical and chemical forms of radionuclide contaminations, their transfer, distribution and migration in aquatic ecosystems. The radiation doses and disturbances caused by them in aquatic organisms under conditions of intense radioactive contamination are considered. The efficiency of water-protective hydroengineering measures and natural deactivation processes in aquatic ecosystems are estimated.
Dynamics of Chlorophyll a Content Depending on Phytoplankton Structure (on the Example of the Teterev River)
35-46
10.1615/HydrobJ.v42.i6.20
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
L. A.
Sirenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Pr. Geroyev Stalingrada, 04210 Kiev, Ukraine
Yu. S.
Kuzminchuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The peculiarities of spatial and temporal dynamics of chlorophyll a content, and also the species composition, biomass, and photosynthetic activity of phytoplankton, were studied in the Teterev river and in some its tributaries.
Influence of Biologically Active Exometabolites of Algae on Organic Matter Decomposition
47-53
10.1615/HydrobJ.v42.i6.30
A. V.
Kureyshevich
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Based on experimental investigations, and also on the analysis of literature data, a direct relationship was established between the total production to organic matter decomposition ratio (A/R) and the intensity of phytoplankton net production. It has been found that low values of organic matter decomposition at a high intensity of phytoplankton photosynthesis may be conditioned by the influence of biologically active exometabolites of algae, in particular of glycolic acid capable of inhibiting bacterial decomposition of organic matter.
Effects of Aerosil Sorbent on Physiological and Biochemical Parameters of Carp Yearlings
54-60
10.1615/HydrobJ.v42.i6.40
L. Ya.
Kurovskaya
Institute of Zoology National Academy of Sciences of Ukraine Kyiv, Ukraine
It has been shown that the addition of aerosil to the fodder of carp changes blood parameters within the limits of their physiological norm. This sorbent effects in increased natural antibody titer and does not influence the activity of cavitary digestion enzymes. At the same time, it changes the activities of protease and lipase participating in processes of wall (parietal) digestion in carp.
Saponin as a Factor of Mass Fish Mortality in the Rivers of Ukraine
61-71
10.1615/HydrobJ.v42.i6.50
I. V.
Grib
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
N. I.
Goncharenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
D. I.
Voytyshina
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
It is stated based on laboratory simulation experiment that saponin, a hemolytic glycoside, may be an actual cause of fish kills in environmental water bodies. Irreversible toxic effect of saponin on fish occurs at its 2.0 mg/L concentration. It was demonstrated on the example of two tributaries of the Pripyat (Pripet) River that wastewaters of beet-processing sugar mills may be the source of saponin in natural waters.
Using EHF-Dielectrometry for Estimation of Viability of Some Microalgae at the Presence of Catamine
72-84
10.1615/HydrobJ.v42.i6.60
T. V.
Parshikova
T. G. Shevchenko Kiev National University, 60, Vladimirskaya St., 01017 Kiev, Ukraine
T. Yu.
Shchegoleva
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085
The results of using EHF-dielectrometry for estimation of changes in the functional state of microalgae subjected to the influence of a cationic surfactant (catamine) in the light and in the dark and at different surfactant concentrations and duration of exposure are presented. It was revealed that catamine changes in a rather specific mode the value of hydrate surrounding of the intracellular structure, polarization sign and content of free water in representatives of prokaryotic and eukaryotic algae.
Effects of the Alkaloid Complex of Nuphar lutea (L.) Smith on the Survival of Carp Underyearlings
85-92
10.1615/HydrobJ.v42.i6.70
V. F.
Kovalenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
O. V.
Balanda
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
A preparation that contained 42% of alkaloids was obtained from rhizomes of yellow water lily (spatterdock, Nuphar lutea (L.) Smith). This alkaloid complex exerted toxic influence on the fish at any modes of its administration, causing inhibition of motor activity, slowing down of respiratory movements of gills, and increased oxygen consumption. The doses 0.3—1.0 g/kg are fatal to fish. When the dose is 0.05 g/kg, the signs of poisoning are observed only during the first hours of experiment.
Peculiarities of Accumulation of the Ions of Heavy Metals in the Organism of Freshwater Mollusks
93-103
10.1615/HydrobJ.v42.i6.80
G. Ye.
Kyrychuk
Zhytomyr Ivan Franko State University Zhytomyr, Ukraine
The peculiarities of accumulation of the ions of heavy metals (Cd2+, Cu2+, Pb2+, Zn2+) in the organism of five species of mollusks were revealed. The distribution of these elements in the tissues and organs of mollusks was investigated. The concentration factors and the coefficients of benthic biological accumulation were calculated. The obtained data were statistically processed by the method of correlation analysis.
Main Tendencies for Changes in Water Quality in the Lakes of the Shatsk National Nature Park
104-110
10.1615/HydrobJ.v42.i6.90
A. A.
Morozova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Results of hydrochemical investigations carried out in water bodies of the Shatsk National Nature Park are presented. Both literature and original data suggest that the role of anthropic factors in the processes of water quality formation in the lakes increased. It has been found that water salinity and the content of nutrients increased, whereas the ionic composition of the water changed.
Contents for 2006
111-115
10.1615/HydrobJ.v42.i6.100