Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
40
3
2004
Fauna of Mollusks of the Lower Reaches of the Danube River within the Territory of Ukraine
15
10.1615/HydrobJ.v40.i3.10
A.V.
Kornyushin
Institute of Zoology, National Academy of Sciences of Ukrain; and Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukrainee
A. V.
Liashenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The list of mollusks of the lower reaches of the Danube river within the territory of Ukraine compiled on the basis of both literature and original data is presented. The status of the most controversial taxa is discussed. The complexes of mollusks occurring in water bodies of various types are compared. Some problems of the formation of the fauna of mollusks of the studied region and its modern state are discussed.
Interannual Intrapopulational Variability of Russian Sturgeon of the North Caspian Population by the Quantity and Frequency of Occurrence of Various Phenotypes of Hemoglobin in the River Period of Life
12
10.1615/HydrobJ.v40.i3.20
V. I.
Luk'yanenko
Upper Volga Branch of Russian Ecological Academy, Yaroslavl'; and Institute of Biology of Internal Waters of Russian Academy of Science Borok, Yaroslavl' Region, Russia
V. V.
Luk'yanenko
Upper Volga Branch of Russian Ecological Academy, Yaroslavl'; and Institute of Biology of Internal Waters of Russian Academy of Science Borok, Yaroslavl' Region, Russia
M. V.
Khabarov
Upper Volga Branch of Russian Ecological Academy, Yaroslavl'; and Institute of Biology of Internal Waters of Russian Academy of Science Borok, Yaroslavl' Region, Russia
This work is devoted to one of the most important problems of population genetics of fish - the possibility to use the frequency of occurrence of some phenotypes of polymorphic proteins in population-genetic studies of the intraspecific structure of polymorphic species to reveal the number of populations and define their ranges. The phenomenon of interannual variability of the frequency of occurrence of different phenotypes of hemoglobin, one of the most important functionally specialized blood proteins, is described on the basis of studies of the North Caspian population of Russian sturgeon (Acipenser güldenstädti). A unique biochemical polymorphism of this population (17 phenotypes of hemoglobin) has been discovered.
Ichthyoplankton of the Northwestern Part of the Black Sea
12
10.1615/HydrobJ.v40.i3.30
T. N.
Klimova
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
Dynamics of the structure and abundance of ichthyoplankton in the northwestern part of the Black Sea in 1987-1992 is analyzed in a comparative aspect. It has been stated a sharp reduction in species diversity and numbers of fish eggs and larvae in comparison with corresponding parameters in the 1960s -1970s. The main causes of occurred changes are considered.
Condition of the Pelagic Fish Spawn in Coastal Waters of the Black Sea near Sevastopol
13
10.1615/HydrobJ.v40.i3.40
A. D.
Gordina
Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine; Marine Branch of the Ukrainian Research Hydrometeorological Institute Sevastopol, Ukraine
V. G.
Tsytsugina
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
Ye. I.
Ovsyaniy
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine; and Marine Hydrophysical Institute, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
A. S.
Romanov
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine; and Marine Hydrophysical Institute, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
R. B.
Kemp
Institute of Biological Sciences, Edward Lloyd Building, University of Wales, Aberystwyth, SY23 3DA, Wales, United Kingdom
The numbers and state of pelagic fish eggs has been compared with the conditions (in particular, hydrochemical conditions) in the waters of the semi-closed Sevastopol Bay and in adjacent marine areas. There are indicated the main zones of toxic and mutagenic influence of various, both natural and anthropic, factors acting in the water areas.
Mollusks of the Dnieper-Bug Estuary Region and Their Role in Feeding of Fish
7
10.1615/HydrobJ.v40.i3.50
T. L.
Alekseenko
Kherson Hydrobiological Research Station of the Institute of Hydrobiology National Academy of Sciences of Ukraine Kherson, Ukraine
128 species of mollusks (78 Gastropoda and 50 Bivalvia) belonging to 27 families had been found in the Dnieper-Bug mouth region. Mollusks are the basic structural components of many communities. The strongest and most widespread communities in the Dnieper-Bug Liman (estuary) are Dreissena polymorpha (Pal.), Turricaspia triton (Eichv.), Unio tumidus Phil., and Mya arenaria (Chr.); in the lower reaches of the Dnieper these are Dr. bugensis Andr. and Viviparus ater (Chr. et Jan.). The biomass of the most productive Dr. bugensis community reaches 1.2 kg/m2. The whole population of zebra mussel may be considered as food benthos.
Role of Sandy Bottom Sediments in the Process of Self-purification of Water from Organic Matter
11
10.1615/HydrobJ.v40.i3.60
Ye. P.
Plaziy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
G. V.
Melenchuk
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
Results of the study of the role of sandy bottom sediments in the processes of self-purification of water from organic matter are presented. It has been found that in sandy bottom sediments the rate of the decrease in the value of BODtotal is essentially higher than that registered in the water without sandy bottom sediments (especially during the short-term exposition). The coefficient of purification was proposed for the quantitative assessment of the capacity of sandy bottom sediments for purification. It makes it possible to assess the decease in the value of BODtotal as a result of the joint action of physical, chemical, and biological processes occurring in sandy bottom sediments.
Physiological and Biochemical Estimation of the Culture State of Moina macrocopa in the Process of Cumulative Cultivation
6
10.1615/HydrobJ.v40.i3.70
V. D.
Solomatina
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
T. I.
Lekontseva
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
N. A.
Mogilevich
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
The investigations concern the structural and functional characteristics of Moina macrocopa population and its energetic status in different phases of cumulative culture growth with respect to changes in hydrochemical parameters of the cultivation medium. In the phase of maximal numbers and biomass the substantial alterations in population structure were observed: increasing of numbers of sterile and mictic females and reduction of the share of the amictic individuals. Decrease of energy resources in a crustacean organism, such as high-energy phosphate compounds (ATP, ADP, AMP) and total contents of proteins and lipids were registered. The issue concerning correlation between parameters of the functional state of M. macrocopa and water quality characteristics (the fall of the dissolved oxygen level, an increase of organic and nitrogen compounds contents) during culture growth is discussed.
Structure of Energetic Balance of Hydrobionts in the Toxic Environment
9
10.1615/HydrobJ.v40.i3.80
V. P.
Gandzyura
Kyiv National University, Kyiv, Ukraine
Essential changes in the structure of energetic balance of hydrobionts were registered at a high concentration of heavy metals in the water. The value of the accessible flow of energy significantly influences the intensity of toxic effect.
Humic Substances of Natural Waters and Their Importance for Aquatic Ecosystems: a Review
23
10.1615/HydrobJ.v40.i3.90
T. A.
Vasilchuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
R. P.
Linnik
Kiev National University Kiev, Ukraine
An overview of structural and chemical characteristics of humic substances of different origin is presented. The role of these substances in binding of heavy metals, radionuclides, and organic pollutants, and their reductional properties are demonstrated. It is emphasized that humic substances promote detoxification of organic and inorganic compounds in aquatic ecosystems.
Peculiarities of Metabolic Response of Moina micrura (Cladocera) Grown at Hypo- and Normoxia on Changed Oxygen Concentrations
9
10.1615/HydrobJ.v40.i3.100
L. S.
Svetlichniy
Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
Ye. S.
Gubareva
Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
The effects of short-term hypoxia on the respiration intensity (polarography), ammonia nitrogen excretion, and atomic N:O ratio were studied in active and narcotized Moina micrura cultivated under hypoxia (~ 1.4 mg O2·L−1) and normoxia. It has been shown that oxygen dependence of their total metabolism is diminished at acclimation to hypoxia. The basal metabolism, as well as excretion of ammonia nitrogen, is changed proportionally to the O2 concentration independently of the acclimation degree to hypoxia. It is concluded that transition of Moina micrura from the routine for normoxia protein-lipid type of catabolism to pure protein utilization occurs only at sublethal oxygen concentrations.