Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
37
2
2001
Blue-green Periphyton Algae of the Cooling Pond of the Chernobyl Nuclear Power Station Until and After the Accident
18
10.1615/HydrobJ.v37.i2.10
T. F.
Shevchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Comparison of original data on the blue-green periphyton algae of the cooling pond of the Chernobyl Nuclear Power Station until and after the accident made it possible to found essential differences in the structure of algae communities with the dominance of Cyanophyta. Significant changes were registered in the complex of subdominant species. The role of Cyanophyta belonging to facultative thermophils decreased abruptly. The species composition of blue-green algae and their taxonomic structure at the level of the leading families and genera changed. After the accident, the number of species of Cyanophyta in the cooling pond sharply decreased from 84 to 43.
Ecological Standards of Water Quality for the Shatsk Lakes
18
10.1615/HydrobJ.v37.i2.20
O. P.
Oksiyuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ecological standards of water quality (optimal and permissible values) were established for seven lakes of Shatsk National Park differing in their trophic levels, indices of salt content, trophic and saprobic indices, and also in the content of specific toxic and radioactive substances. The modem state of water quality was assessed in comparison with the ecological standards for these lakes.
The Influence of Lead and Copper on Some Indices of Vital Activity of Green and Blue-green Algae
13
10.1615/HydrobJ.v37.i2.30
V. A.
Medved'
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
The peculiarities of the response of algae to the presence of Pb2+ and Cu2+ ions in water were studied on the example of the cultures of Chlorella vulgaris and Microcystis aeruginosa. The influence of the mentioned toxicants on phototrophic organisms manifested itself in the decrease in the growth rate of cell numbers, dry mass, and chlorophyll a content.
Influence of Temperature Acclimation and Actinomycin D on the Carbohydrate Metabolism in Liver and Muscles of Mullus barbatus ponticus
8
10.1615/HydrobJ.v37.i2.40
O. S.
Rusinova
Karadag Branch, Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine, Sevastopol, Ukraine
L. P.
Astakhova
Karadag Nature Reserve National Academy of Science of Ukraine, Kurortnoye settlement, Crimea, Ukraine
V. I.
Lushchak
Karadag Nature Reserve National Academy of Science of Ukraine, Kurortnoye settlement, Crimea, Ukraine
The decrease in temperature from 16°C to 8°C caused the reduction in glycogen concentration and LDH activity, and the raise in G6PDH activity in tissues of red-striped mullet. These changes were expressed mostly in liver and in red muscles. The injection of actinomycin D, which is an inhibitor of protein biosynthesis, significantly decreased glycogen concentration, and insignificantly increased LDH and G6PDH activities. Mechanisms of the carbohydrate metabolism modification in fish tissues under decreasing environmental temperature are discussed.
Preferential Behavior of Pontoporeia affinis Lindstrom (Crustacea, Amphipoda)
6
10.1615/HydrobJ.v37.i2.50
B. Z.
Kaufman
Institute of Biology Russian Academy of Sciences Petrozavodsk, Russia
Photo-, thermo-, halo-, and pH-preferendums of Pontoporeia affinis as a representative of freshwater organisms were studied. The individuals demonstrated a distinct daily rhythm of photopreferendum, as well as stable values of thermo-, halo-, and pH-preferendums during the day. The causes and evolutionary significance of these responses are discussed.
Use of Invertebrates in Monitoring of Aquatic Ecosystems Contaminated with Heavy Metals (A Review)
14
10.1615/HydrobJ.v37.i2.60
N. V.
Bren'
Institute of Hydrobiology, National Academy of Science of Ukraine, Kiev, Ukraine
The article provides a review of literature data on the occurrence and circulation of heavy metals (HM) in aquatic ecosystems, and abiotic and biotic factors influencing HM content in invertebrates. The diversity of responses in various species to action of some HM, especially in high concentrations, is of interest as a possibility to use such organisms in bioindication of water toxicity.
Statistical Analysis of Reliability and Accuracy in Evaluation of Mussel (Mytilus galloprovincialis L.) Population Numbers
8
10.1615/HydrobJ.v37.i2.70
L. A.
Koval'chuk
Southern Research Institute of Fisheries and Oceanography Kerch, Crimea, Ukraine
N. M.
Litvinenko
Southern Research Institute of Fisheries and Oceanography Kerch, Crimea, Ukraine
The modified method of areas for the evaluation of numbers of the mollusk species Mytilus galloprovincialis is proposed. This method allowed to identify the areas of high-probability, medium-probability and low-probability harvesting of mussel on the fishing bank Mezhvodnaya, Karkinit (Karkinitsky) Bay of the Black Sea, and to estimate the statistical significance of interannual variations of mussel stocks. Calculated average long-term statistics of catches are recommended in order to optimize the observation system.
Methodological Approaches to the Inclusion of Hydrobiological Indices into the Model for Management of the Dniester River Water Resources
12
10.1615/HydrobJ.v37.i2.80
L. V.
Shevtsova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine; Kyiv University of Management and Business
H. U.
Balford
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine Delft Hydraulics The Netherlands Ecology Institute Academy of Sciences of Moldova Chisinau, Moldova
V.
Moshanu
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine Delft Hydraulics The Netherlands Ecology Institute Academy of Sciences of Moldova Chisinau, Moldova
Based on the peculiarities of present-day use of the Dniester water resources and its ecosystems, five ecologically sensitive zones are distinguished along the reaches of the river. Conservation and reproduction of hydrobionts must be taken into account in an effective model for the management of water resources. It is especially important for the Dniester, where conditions exist unfavorably influencing river's life.
Accelerated Method for the Determination of Chemical Oxygen Demand in the Natural Waters
8
10.1615/HydrobJ.v37.i2.90
V. V.
Udovichenko
T. Shevchenko National University Kiev, Ukraine Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
V. I.
Nabivanets
Taras Shevchenko National University Kiev, Ukraine
V. V.
Sukhin
Taras Shevchenko National University Kiev, Ukraine
The problems related to the desirable accelerated determination of chemical oxygen demand (COD) by organic matter in waters are considered. Based on the research conducted, the method is proposed that is simple in performance and accelerates determination procedure. The use of mercury salts is not needed if the concentration of chloride ions does not exceed 250 mg/L. The analyses of natural waters have shown a good reproducibility of the results obtained, and revealed practically no differences as compared to the values resulting from the standard method. It is not recommended to concentrate the water samples by evaporating or freezing.
Use of Space Information for the Control of Water Bodies in the Chernobyl Zone
9
10.1615/HydrobJ.v37.i2.100
A. D.
Fedorovskiy
Earth Aerospace Research Centre, Institute of Geological Sciences National Academy of Sciences of Ukraine, Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
L. A.
Sirenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Pr. Geroyev Stalingrada, 04210 Kiev, Ukraine
A. J.
Khodorovsky
The Earth Aerospace Research Center of the Institute of Geological Sciences National Academy of Sciences of Ukraine Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
A. D.
Ryabokonenko
The Earth Aerospace Research Center of the Institute of Geological Sciences National Academy of Sciences of Ukraine Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
The results of decoding of space photographs received in optical and radio wave ranges of spectrum from the SPOT, Landsat and ERS satellites were considered. Concrete examples of performing the monitoring of water bodies in the 30-km zone of the Chernobyl accident are given. The possibility of controlling the state and predicting the extent of the flood along the territory during the spring high water and freshet, presence of water filtration processes from cooling basin (by peculiarities of water temperature) has been proved. The relation between distribution of radionuclides in bottom sediments and water of separate sections of the Kiev reservoir with tectonic faults and neotectonic characteristics of the catchment area and the bed of the Kiev reservoir is discussed.
Runoff of the Total Suspended Phosphorus from the Dnieper-Bug Mouth Area into the Black Sea
5
10.1615/HydrobJ.v37.i2.110
L. A.
Zhuravleva
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A. A.
Morozova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Long-term observations on the runoff of the total suspended phosphorus of the Dnieper and the Southern Bug rivers into the Black Sea show that its values undergo considerable changes when passing their estuarine offshore, the Dnieper-Bug mouth. Its average annual value is 50,8 tons per year (here and below, metric tons).
Peculiarities of Phytoplankton of the Kiev Section of the Kanev Reservoir Depending on the Operating conditions of the Kiev Hydro-Electric Power Station
14
10.1615/HydrobJ.v37.i2.120
G. V.
Melenchuk
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
Yu. I.
Karpezo
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
It has been found that the species composition and quantitative indices of phytoplankton of the Kiev section of the Kanev reservoir are subjected to wide fluctuations during a day. The increase in the species diversity of phytoplankton at the expense of the algal flora arriving from adjacent canals, bays, and lakes is conditioned by daily operating conditions of the Kiev Hydro-Electric Power Station characterized by the availability of two peaks.