Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
41
4
2005
Long-term Dynamics of Zooplankton of the Desna River
3-14
10.1615/HydrobJ.v41.i4.10
L. V.
Shevtsova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine; Kyiv University of Management and Business
L. V.
Guleykova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Zooplankton of the Desna river was studied in 1986-2001. The obtained data on the structural indices of zooplankton of the main riverbed, including its species composition, numbers, biomass, and saprobity, were compared with those obtained by other researches in the 1930s and 1960s. The influence of some natural and anthropic factors on the formation of zooplankton structure was elucidated. Modern state of the Desna river was assessed in terms of zooplankton indices.
Peculiarities of the Formation and Functioning of Plant Communities in the Upper Reaches of the Kanev Reservoir
15-25
10.1615/HydrobJ.v41.i4.20
Ye. N.
Tsaplina
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
M. I.
Linchuk
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
Relationship was established between the type of plant communities of the Kanev reservoir and the environmental conditions. The factors responsible for their successional changes were revealed.
Comparative Characteristics of Phytoplankton of Various Water Bodies of Kiev
26-33
10.1615/HydrobJ.v41.i4.30
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
Natalya Ye.
Semenyuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine,
12 Geroyiv Stalingrada Av., Kiev 04210, Ukraine
The structure of phytoplankton was studied in various water bodies of Kiev. They included the lakes genetically connected with the floodplain of the Dnieper river, landscape water bodies, and former fish ponds. The studied water bodies essentially differed in the species composition and in the quantitative indices of development of phytoplankton.
Energy Budget of Some Young Sturgeons under Optimal Static and Astatic Thermal Conditions
34-44
10.1615/HydrobJ.v41.i4.40
A. S.
Konstantinov
Moscow State University, Moscow, Russia
V. Ya.
Pushkar
Moscow State University, Moscow, Russia
V. V.
Zdanovich
Moscow State University, Moscow, Russia
O. V.
Aver'yanova
Moscow State University, Moscow, Russia
V. V.
Rechinskiy
Moscow State University, Moscow, Russia
Balance equations for the energy budget of young sturgeons at the optimum stationary temperature differ essentially from the existing generalized model specified for sturgeons. According to our results, the shares of food energy to growth and unused energy are higher, and a share of expended energy is lower than those in the existing generalized model. Periodic sine wave deviations of temperature from its stationary optimum values improve essentially the energy budget of experimental fish. The data obtained should be taken into account at improvement of aquaculture biotechnologies, particularly at commercial cultivation of young sturgeons.
Enzymes of Transamination in Viviparus viviparus (Mollusca: Pectinibranchia: Viviparidae) under Norm and Invasion by Trematodes
45-48
10.1615/HydrobJ.v41.i4.50
G. Ye.
Kyrychuk
Zhytomyr Ivan Franko State University Zhytomyr, Ukraine
A. P.
Stadnichenko
Ivan Franko Zhytomyr University Zhytomyr, Ukraine
The influence of trematodes on the activity of transamination enzymes in Viviparus viviparous were under study. It was stated that levels of alanine transaminase (ALT) activity demonstrated no differences in all studied animals. At the same time, aspartate aminotransferase (AST) activity in males was 1.7 times higher. ALT activity in Viviparus viviparous infested with parthenitae and cercariae of Echinoparyphium petrowi remained at the normal level or even rose in females, while it lowered in males. AST activity declined in all infested individuals.
Effect of Phenols on the Content of Glucose in Organs of Unio (Mollusca: Bivalvia: Unionidae)
49-53
10.1615/HydrobJ.v41.i4.60
L. N.
Yanovich
Zhitomir State University, Zhitomir
A. P.
Stadnichenko
Ivan Franko Zhytomyr University Zhytomyr, Ukraine
Effects of phenol (250, 500, 750 mg/dm3) and hydroquinone (10, 50, 500 mg/dm3) on the content of glucose in different organs (gills, mantle, hepatopancreas, gonads) of Unio pictorum were studied. At 250 mg/dm3 of phenol in water the content of glucose in organs of this mollusk increased, but its content decreased in the case of 500 mg/dm3 and 750 mg/dm3. This parameter decreased progressively at the exposure to hydroquinone.
Influence of Food Availability on the Accumulation of 137Cs by Fishes of the Cooling Pond of the Chernobyl NPS
54-66
10.1615/HydrobJ.v41.i4.70
In 1986-1988 the content of 137Cs in the fishes kept in breeding cages in the cooling pond of the Chernobyl NPS in the absence of artificial food was compared with that in free-living fishes characterized by different types of nutrition. The body mass of polybenthophagous fishes kept in cages and the content of 137Cs in them were several times lower than those registered in free-living fishes. It has been found that the content of 137Cs in Ictalurus punctatus depended inversely on its dimensions. As a result of the absence of artificial food, by summer 1988 the death rate of I. punctatus and Cyprinus carpio belonging to polybenthophagous species of fishes accounted for almost 100%The content of 137Cs and biological characteristics in free-living planktophagous species of fishes (Hypophthalmichthys molitrix and Aristichthys nobilis) were closely similar to those kept in cages, which was conditioned by the same food availability.
Some Peculiarities of the Formation of the Hydrochemical Regime and Water Quality in the Ivankovo Reservoir in 1996-2000
67-78
10.1615/HydrobJ.v41.i4.80
N. Ye.
Salnikov
Upper Volga Department of the State Scientific Institute of Oceanography and Fishery, Konakovo-3, Russia
L. M.
Sappo
Upper Volga Department of the State Scientific Institute of Oceanography and Fishery, Konakovo-3, Russia
Annual changes in the hydrochemical regime and water quality of the Ivankovo reservoir were studied in 1996-2000. They were conditioned mainly by changes in the weather and climatic conditions responsible for the formation of many abiotic characteristics of the aquatic environment. Extreme physical and chemical indices of water quality were registered at the lowest water level in 1996 and at the highest temperature of water in 1999.
A Simple Model of Species Structure in a Competitive Fish Community
79-84
10.1615/HydrobJ.v41.i4.90
V. V.
Sukhanov
Institute of Sea Biology, Far-Eastern Division of the Russian Academy of Sciences Vladivostok, Russia
A mathematical model is proposed for describing the species structure of a competitive community inhabiting some stochastically variable environment. The species list of this community, rearranged according to a decrease in species abundance, has to be described by decreasing geometrical series. According to the hypothesis of stochastic remainder, when all competing species use the resource by the optimal way, then the coefficient of this geometrical series should be equal to the value q = exp (−1) = 0.368. The case study of Pacific salmon species structure is presented.
A Method for Analysis of Seasonal Growth of Some Freshwater Bivalves (Unionidae: Bivalvia)
85-94
10.1615/HydrobJ.v41.i4.100
Estimation was made of retrospective parameters of radial growth of shells in bivalves of the family Unionidae. Individuals under study lived in three different water bodies of the Kiev and Chernigov regions (Chernobyl NPP cooling reservoir, the Pripyat’ and the Desna rivers) for the period 1976-2000. Shells of different Unionidae species living in one pool are characterized by similar growth parameters. It allows comparing sclerochronological data from various water bodies differing in the species compositions of Unionidae.
Inheritance of the Character of Radial Shell Stripes in the Mussel Mytilus galloprovincialis Lam.
95-102
10.1615/HydrobJ.v41.i4.110
A. V.
Pirkova
A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS,
2 Nakhimov Аvе., Sevastopol 299011, Crimea
L. V.
Ladygina
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
N. G.
Stolbova
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
Three series of individual direct and reciprocal matings were performed; in addition, there were obtained fill-sibs in the fist generation. Analysis of the splitting in the first generation had shown that the character of radial striation of the shell of mussel is determined by single two-allele gene with domination of the allele of “stripes present”. The distribution frequency of striped phenotypes of mussel settlement did not depend on the depth of the habitat in Laspi Bay (the Crimea).
Hydrobiological Indicators of Toxification of Ponds of the Western Region of Ukraine
103-118
10.1615/HydrobJ.v41.i4.120
N. S.
Yalynskaya
Lvov (Lviv) National University, Lvov (Lviv), Ukraine
I. T.
Oleksiv
Lvov (Lviv) National University, Lvov (Lviv), Ukraine
O. P.
Andryushchishin
Lvov (Lviv) National University, Lvov (Lviv), Ukraine
O. Ya.
Dumich
Lvov (Lviv) National University, Lvov (Lviv), Ukraine
O. P.
Yedynak
Lvov (Lviv) National University, Lvov (Lviv), Ukraine
O. N.
Savitskaya
Lvov (Lviv) National University, Lvov (Lviv), Ukraine
Yu. M.
Zabytivskiy
Lvov (Lviv) National University, Lvov (Lviv), Ukraine
Based on the experience of 18 years of natural and experimental studies of 46 ponds of the western region of Ukraine and model ecosystems, the general regularities of hydrofauna responses to toxic impact of heavy metals and pesticides have been clarified. The most perspective indicator group on toxic pollution is microzooplankton (Ciliata and Rotatoria). Response of mesozooplankton (Cladocera and Copepoda) includes decreasing of its species diversity and reconstruction of the communities and structure and functional specificity. Response of zoobenthos (Chironomidae and Oligochaeta) is essentially the same.