Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
36
5
2000
On the Phenotypic Structure of Dreissena polymorpha (Pall.) Populations
15
10.1615/HydrobJ.v36.i5.10
Ye. V.
Gorpinchuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Shells of Zebra mussels from populations of the Dnieper, Sasyk Lake (southern Ukraine) and Konin Lakes (Poland) were under study. The shape of shells, their general coloration, its hues (shades of color) and patterns were used as elementary characters in the search of quantitative phenes characteristic for a certain population. Combinations of these characters were described and analyzed using an original scheme with designations of characters in letters and figures. More than 80 phenotypes of pattern, sculpture and shape of shells were found.
The Role of Biota in the Oxygen Regime of the Limans Adjacent to the Danube (the Case Study of Yalpug Lake)
8
10.1615/HydrobJ.v36.i5.20
O. P.
Oksiyuk
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
T. N.
Dyachenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
V. N.
Belokon'
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Yalpug Lake was adopted as a model of other limans in the Danubian flood-lands having hydrobiological peculiarities and experiencing anthropogenic impact. Values of production-destruction, oxygen exchange of plankton and benthos, and characteristics of macrophytes communities of the lake were under study. It has been shown that plankton and submerged macrophytes play the principal part in forming the oxygen budget of such lakes. The role of higher aquatic vegetation is especially important in the deep limans with a low water transparency. Therefore, anthropogenic factors suppressing vegetation of macrophytes predetermine a negative budget and a depletion of dissolved oxygen in the lake water.
Perspectives of Black Amur Breeding in the Forest-Steppe Zone of Ukraine
11
10.1615/HydrobJ.v36.i5.30
A. S.
Potrokhov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
O. G.
Zin'kovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
N. Yu.
Yevtushenko
National University of Life and Environmental Sciences of Ukraine, Kiev, Ukraine
Technology problems in breeding of black amur (black carp) and their successful resolution under conditions of a pond farm where this fish was introduced are considered. The basic environmental parameters necessary for spawning, growing up of fry, and further growth and maturation of black amur are given.
Bacterial Periphyton of the Bratsk Reservoir
6
10.1615/HydrobJ.v36.i5.40
N. V.
Dutova
Limnological institute, Siberian branch of the Russian Academy of Sciences Irkutsk, Russia
O. M.
Kozlova
Research Institute of the Irkutsk State University
Results of studies of bacterial periphyton carried out in Balagan Bay of the Bratsk reservoir (East Siberia) in 1981, 1987 and 1993 are presented. The density of bacterioperiphyton changed from 0.3 to 0.9 million cells/cm2. The level of microflora development and the morphological composition in periphyton communities are different in various water strata. The thermocline is characterized by the domination of bacillar forms and the most diversity of morphological forms of microorganisms. The direct connection between number of bacteria on overgrown glasses and their morphological diversity had been observed. Tendency to the decreasing quantities of bacteria in the periphyton during 1981−1993 had been observed. This phenomenon is correlated with the water provision of a year.
Morphological Variability of Dreissena bugensis Andrusov Under Conditions of the Regulated Dnieper Outflow
8
10.1615/HydrobJ.v36.i5.50
The polymorphism of periostracum coloration and pattern was described first for Dreissena bugensis Andrusov. Morphological variability of its groups inhabiting areas of 5 dams of hydroelectric stations located on reservoirs of the Dnieper cascade was analyzed on 9 parameters of shell coloration and pattern. Samples collected both above and below the dams differed by their index of morphological variability.
The Influence of Exogenous Nucleic Acids on Fish Viability During Early Ontogenesis
11
10.1615/HydrobJ.v36.i5.60
V. P.
Bil'ko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
V. N.
Zhukinskiy
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Effects of nucleic acids on viability of embryos and larvae of Misgurnus fossilis, Cyphnus carpio, Ctenopharingodon idella and Hypophtalmichthys molitrix were studied. It was demonstrated that nucleic acids at the concentration of 0.5 mg/L stimulated fish larvae viability and thermal resistance, and at the concentrations of 5.0 mg/L, and especially 50.0 mg/L, they repressed fish embryos and larvae viability, development and growth.
Structural and Functional Characteristics of Zooperiphyton of an Urbanized Small River
10
10.1615/HydrobJ.v36.i5.70
Ye. A.
Golubkova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Results of studies of zooperiphyton in the Syrets' river system (within the city limits of Kiev) are presented. Its species composition and quantitative indices for higher water plants and solid substrates are considered. The saprobic indices calculated by zooperiphyton organisms are determined for reservoirs and waterways of the Syrets' river.
Intravital Excretion of Organic Matter by Phytoplankton in Three Water Bodies of Different Trophicity (Methodical Aspects)
4
10.1615/HydrobJ.v36.i5.80
A. P.
Sadchikov
Moscow State University, Moscow, Russia
A. A.
Makarov
Moscow State University, Moscow, Russia
It is necessary to bubble the experimental and control samples simultaneously for removing the residual 14CO2 after its consumption by algae. The control sample is a nonbacterial preparation, to which the same quantity of NaH14CO3 was added as to the control sample and which was subjected to the same operations. The quantity of dissolved organic matter excreted by algae is calculated as a difference between control and experimental values.
Pilengas (Gray Mullet, Mugil so-iuy Basilewsky, 1855), a New Marketable Fish in the Black Sea and the Sea of Azov
11
10.1615/HydrobJ.v36.i5.90
Yu. P.
Zaitsev
Odessa Branch of the Institute of Biology of the Southern Seas National Academy of Science of Ukraine, Odessa Division of the Southern Research Institute of Marine Fisheries and Oceanography, Odessa, Ukraine
L. I.
Starushenko
Odessa Branch of the Institute of Biology of the Southern Seas National Academy of Science of Ukraine; Odessa Division of the Southern Research Institute of Marine Fisheries and Oceanography
Historical and statistical information is provided on the introduction of pilengas (also known as Pacific gray mullet or mullet haarder), a Far-Eastern mullet, which was a newly introduced species in the Black Sea and the Sea of Azov. A significant part of its presently formed and acclimatized populations was hatched from juvenile fish and fry transported from the Sea of Japan. Since the late 1990s, the pilengas fry are encountered everywhere in the Sea of Azov as well as in the northern areas of the Black Sea. The adult fish winter also along the northern Anatolian coast. Pilengas is feeding mainly on meiobenthic organisms and cannot be considered as a competitor of indigenous gray mullets. Pilengas has become the sole marine fish, which is commercially caught in the waters of the Black Sea and the Sea of Azov during all seasons.
Seasonal Changes in GIucose-6-phosphate Dehydrogenase Activity in the Tissues of Black Sea Mussel
5
10.1615/HydrobJ.v36.i5.100
O. S.
Rusinova
Karadag Branch, Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine, Sevastopol, Ukraine
Studies have been made on the glucose-6-phosphate dehydrogenase (G6PDH) activity in the tissues of mussels during 48-hours exposure to air at 5, 15 and 25°C. In winter, the G6PDH activity in Mytilus galloprovincialis increased by 20−60% during 48 h exposure to air as compared to the control level, but, on the contrary, in summer this enzymic activity decreased by 30−40%. When the mussels were kept at 5 and 15°C, the G6PDH activity recovered to a control level in 24 hours. Dynamics of the protein contents was opposite to the dynamics of the G6PDH activity.
Biologically Active Metabolites of Blue-Green Algae and Their Role in Epidemiology
14
10.1615/HydrobJ.v36.i5.110
L. A.
Sirenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Pr. Geroyev Stalingrada, 04210 Kiev, Ukraine
Yu. A.
Kirpenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine; Institute of Pharmacology and Toxicology, Academy of Medical Sciences, Kiev, Ukraine
The experiments carried out under natural and model conditions have shown that the metabolites of natural populations of waterbloom forming blue-green algae essentially influence the formation of algal and bacterial cenoses. The toxins produced by blue-green algae are characterized by a wide spectrum of antimicrobial action on saprophytic, pathogenic and potentially pathogenic microorganisms and viruses. At the same time, an excessive increase in the numbers of algae during the period of waterbloom, their die-off, and release of large amounts of organic compounds readily soluble in water are favorable for the development of microorganisms accompanying blue-green algae, including representatives of the pathogenic microflora.
Radioecological Study of Phytocenoses of Higher Aquatic Plants in Upper Reaches of the Kiev Reservoir
15
10.1615/HydrobJ.v36.i5.120
I. V.
Pan'kov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ye. N.
Volkova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
Z. O.
Shirokaya
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
V. A.
Karapish
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
S.V.
Dremlyuga
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The dose loads on higher aquatic plants are determined and the ecological role of plant communities in distribution and migration of radionuclides in the basins is shown. The "critical zones" for characteristic types of phytocommunities are determined. It is noted that accumulation of radionuclides by macrophytes depends on species and ecological group.
Ecological Monitoring of the Braslavskaya Lake Group in the Zone of Influence of the Ignalina Nuclear Power Plant
7
10.1615/HydrobJ.v36.i5.130
V. M.
Dolgov
Institute of Radiobiology, Academy of Sciences of Byelorussia, Minsk, Byelorussia
P. I.
Datskevich
Institute of Radiobiology, Academy of Sciences of Byelorussia, Minsk, Byelorussia
V. N.
Zemskov
Institute of Radiobiology, Academy of Sciences of Byelorussia, Minsk, Byelorussia
O. D.
Khvaley
Institute of Radiobiology, Academy of Sciences of Byelorussia, Minsk, Byelorussia
This paper presents the results of radioecological monitoring of Braslav lakes in the zone of influence of Ignalina NPP. The presence of Co-60 with activity 181−392 Bk/kg was noted in bottom sediments of the central part of Driswiyatie Lake. The maximum of Cs-137 activity of water registered for Boginskoe Lake was 0.3 Bk/L. The accumulation of Sr-90 and Cs-137 by the aquatic inhabitants (clams, fishes, and aquatic vegetation) was studied.
Long-term Dynamics of the Content of Chlorophyll α and Peculiarities of Development of Phytoplankton in the Dneprodzerzhinsk Reservoir
15
10.1615/HydrobJ.v36.i5.140
L. A.
Sirenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Pr. Geroyev Stalingrada, 04210 Kiev, Ukraine
V. A.
Medved'
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
Long-term dynamics (1981−1993) of the concentration of chlorophyll α in plankton of the Dneprodzerzhinsk reservoir are presented. Comparative analysis of development of phytoplankton during the period of the reservoir operation (1963−1993) has been made based on literature and original data. The Dneprodzerzhinsk reservoir, in terms of the average content of chlorophyll α in plankton, may be assigned to the water bodies of mesotrophic and eutrophic types.
Fish Parasitoses under the Action of Toxicants in the Nature and Experiment (A Review)
12
10.1615/HydrobJ.v36.i5.150
O. N.
Davydov
I. I. Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine
N. M.
Isayeva
Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A review of literature information (63 sources) concerning new investigations on the juncture between hydroparasitology and aquatic toxicology is presented; interrelations between parasitic invasions in fish and influences of toxicants under conditions of water environment pollution are demonstrated.
Dynamics of the Content of Inorganic Compounds of Nitrogen and Chlorophyll α Concentration in Watercourses of the Dnieper Basin
14
10.1615/HydrobJ.v36.i5.160
V. A.
Medved'
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
Dynamics of the content of ammonium, nitrite and nitrate, as well as of chlorophyll α concentration, were analyzed in eight tributaries of the Dnieper river. It has been found that there is a negative correlation between NH4+ and NO3- content and chlorophyll α concentration. This relationship may be both direct and inverse (in the case of nitrite ion).