Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
45
4
2009
Assessment of the Ecological State of Water Bodies in terms of Phytoplankton and Phytobenthos (on the Example of the Ukrainian Section of the Danube River)
3-12
10.1615/HydrobJ.v45.i4.10
O. P.
Oksiyuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
O. A.
Davydov
Institute of Hydrobiology of NAS of Ukraine, 12 Geroev Stalingrada St., Kiev 04210, Ukraine
Yu. I.
Karpezo
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
phytoplankton
phytobenthos
water bodies
ecological state
the Danube River.
The approaches and methods of the use of phytoplankton and phytobenthos in assessing the ecological state of water bodies according to the Water Framework Directive (2000/60/EC) are given in the paper. The problem of the use of phytoplankton and microphytobenthos in characterizing the ecological state of large rivers on the example of the Ukrainian section of the Danube River is considered. The influence of anthropic eutrophication on the ecological state of water bodies was assessed.
Influence of Temperature Fluctuations on the Embryonic Development, Growth, and Fecundity of Lymnaea stagnalis (L.)
13-21
10.1615/HydrobJ.v45.i4.20
A. S.
Konstantinov
Moscow State University, Moscow, Russia
V. A.
Kuznetsov
Mordovian State University, Saransk, Russian Federation
T. N.
Kostoyeva
Mordova State University, Saransk, Russia
temperature
embryonic development
growth
fecundity
Lymnaea stagnalis.
It has been found that under the influence of insignificant temperature fluctuations the rate of embryonic development of Lymnaea stagnalis essentially increased, whereas the death rate of its embryos essentially decreased. The linear and weight growth of mollusks sharply increased, whereas the variability of its specimens in terms of their length and mass decreased. In this case, the death rate of the specimens decreased. The sexual maturity of mollusks was registered earlier, whereas their fecundity essentially increased.
Algae − Indicators of the Degree of Water Salinity of Water Bodies of the Lake Chany System (the Western Siberia, Russia)
22-32
10.1615/HydrobJ.v45.i4.30
V. I.
Yermolayev
Central Siberian Botanical Gardens, Siberian Branch of the Russian Academia of Sciences, Novosibirsk, Russia
algae
phytoplankton
lake
water salinity
halophobic
indifferent
halophilic
and mesohalobic organisms.
A total of 135 species (58.7% of the species composition) of algae − indicators of water salinity belonging to Bacillariophyta − 69 species, Cyanophyta − 37, and Chlorophyta − 29 species was found in phytoplankton of five natural plain water bodies of the Lake Chany system (area 1565 km2) characterized by a high water salinity, including the lakes Malye Chany and Yarkul and the Chinyaikhinskiy, Tagano-Kazantsevskiy, and Yarkovskiy stretches. Halophobic organisms were represented by 4 species, indifferent organisms − by 87 species, halophilic organisms − by 31 species, whereas mesohalobic organisms − by 13 species. On the whole, 55 algae species − indicators of water salinity were common to all the studied water bodies. The largest number of indicator species was registered in Lake Malye Chany (108), whereas their lowest number was observed in the Tagano-Kazantsevskiy stretch (66 species). The obtained data make it possible to identify the species composition of indicator algae, and also to study the peculiarities of their distribution in water bodies of the Lake Chany system.
Application of the "Ast" Traps for Study of some Environmental Factors' Effect on Juvenile Fish
33-49
10.1615/HydrobJ.v45.i4.40
A. A.
Koval'chuk
Uzhgorod National University Uzhgorod, Ukraine
M. V.
Aleksiyenko
Kiev National University, Kiev, Ukraine
V. R.
Alekseyenko
Kiev National University, Kiev, Ukraine
"AST" traps
environmental factors
juvenile fish
behavior.
In the experiment a possibility of application of the plastic passive-type traps "AST" [2, 3] of different configuration for study of the environmental factors' effect on behavior of juvenile specimens of two fish species: guppy (Poecilia reticulata Peters), inhabiting water thickness, and benthic catfish (Corydoras paleatus Jenyns) was studied. It was stated that density of fish and spatial distribution of traps are the main factors influencing the traps' catching efficiency. Trap's type and disposition were more significant factors for catfish, and lightness was more significant for guppy. Cylindrical traps were more effective than conical.
Studies on the Local Anthropic Influence on the Horizontal and Vertical Distribution of Microorganisms in the Water of Lake Baikal
50-60
10.1615/HydrobJ.v45.i4.50
V. V.
Parfenova
Limnological Institute, Siberian department Russian Academy of Sciences, Irkutsk, Russia
O. N.
Pavlova
Limnological Institute, Siberian department Russian Academy of Sciences, Irkutsk, Russia
O. S.
Kravchenko
Limnological Institute, Siberian department Russian Academy of Sciences, Irkutsk, Russia
T. Ya.
Kostornova
Limnological Institute, Siberian department Russian Academy of Sciences, Irkutsk, Russia
I. G.
Nikulina
Limnological Institute, Siberian department Russian Academy of Sciences, Irkutsk, Russia
I. V.
Tomberg
Limnological Institute, Siberian Branch of Russian Academy of Sciences, 3, Ulan-Batorskaya St., 664033 Irkutsk, Russia
V. G.
Ivanov
Federal State Budget Enterprise of Science Limnological Institute Siberian Department Russian Academy of Sciences Irkutsk, Russia
Y.
Meyer
Complex on Water Supply on the Bodensee, Stuttgart, Germany
D.
Jayter
Complex on Water Supply on the Bodensee, Stuttgart, Germany
Ya.
Fickle
Institute of Technical Chemistry, Scientific-Research Center, Karlsrue, Germany
T.
Baksman
Stuttgart University, Stuttgart, Germany
Y.
Obst
Institute of Technical Chemistry, Scientific-Research Center, Karlsrue, Germany
Lake Baikal
microorganisms
bacteria
Enterococcus
Pseudomonas.
The distribution and numbers of various groups of microorganisms occurring in Lake Baikal, including potentially pathogenic bacteria of the genera Enterococcus and Pseudomonas were investigated.
Photosynthetic Activity of Algae in Their Mono- and Mixed Cultures
61-73
10.1615/HydrobJ.v45.i4.60
algae
allelopathic interaction
specific photosynthetic activity.
The photosynthetic activity of some blue-green and green algae (Microcystis aeruginosa Kütz. em. Elenk., Anabaena variabilis Kütz., Lyngbya limnetica Lemm., Desmodesmus communis (Hegew.) Hegew., Chlorella vulgaris Beijer., and Selenastrum gracile Reinch.) was investigated in their mono- and mixed cultures. It has been found, that the specific photosynthetic activity of the mixed cultures of algae differed essentially from that of their monocultures. Changes in the photosynthetic activity were conditioned by allelopathic interaction between the studied algae.
Assessment of the Microbial Oil-Oxidizing Preparations' Toxicity to Hydrobionts
74-84
10.1615/HydrobJ.v45.i4.70
L. S.
Kipnis
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
T. M.
Nogina
D.K. Zabolotny Institute of Microbiology and Virology, National Academy of Sciences of Ukraine, Kiev, Ukraine
T. U.
Dumans'ka
Institute of Microbiology and Virology National Academy of Sciences of Ukraine, Kiev, Ukraine
microbial oil-oxidizing preparations
toxicity
hydrobionts.
Toxic effect of the microbial oil-oxidizing preparations "ecolan" and "rodoil" on the hydrobionts of different trophic levels has been studied. Results of the chronic and acute experiments showed that considered preparations belong to the almost nontoxic class. It was confirmed that use of these preparations according to the application rate causes practically no ecological risk for the hydroecosystems.
Peculiarities of Adaptation of Fish to the Oil Pollution of the Aquatic Environment
85-92
10.1615/HydrobJ.v45.i4.80
M. O.
Mironiuk
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev
crude oil
succinate dehydrogenase
glycogen
alanine-aminotransferase and aspartame-aminotransferase
tissues
liver
gills
muscles
carp.
The effect of the crude oil (concentration from 5 to 30 maximum permissible concentrations (MPC)) on activity of succinate dehydrogenase, transamination enzymes and glycogen content in the tissues of carp has been studied. Suppression of the succinate dehydrogenase link of the respiratory chain was noted, which plays an important role in compensatory adaptation of the fishes’ energy metabolism to this toxicant. It was stated that under considered oil concentrations glycogen content in liver increased and its content in the muscles decreased. Disturbances of the protein metabolism were revealed, exhibited as decrease of the transamination enzymes’ activity in the fish organism.
Salt Composition of the Rybinsk Reservoir Water and its Long-Term Changes
93-106
10.1615/HydrobJ.v45.i4.90
A. V.
Zakonnova
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russian Federation
A. S.
Litvinov
Institute of Biology of Inner Waters
Russian Academy of Sciences
Borok, RF
water mineralization
salt composition
ion flow
anthropogenic component
the Rybinsk reservoir.
Results are presented of the mineralization and salt composition changes of the Rybinsk reservoir and its tributaries’ water over a period 1950−2002. Role of the anthropogenic component in the ion yield of the Volga River (station Myshkin) for some periods has been assessed.