Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
50
6
2014
Influence of Urban Landscapes on the Structural Indices of Macrophytes in the Vorskla River
3-16
10.1615/HydrobJ.v50.i6.10
G. A.
Karpova
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
Ye. V.
Klepets
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
macrophytes
structural indices
urban landscapes
the Vorskla River
Transformations in the structural indices of macrophytes (species number, ecological structure, abundance, and frequency of occurrence) were studied in various sections of the Vorskla River differing in the degree of their urbanization. Appropriate indicator groups of macrophytes were distinguished.
Thickets of Higher Aquatic Plants in the Estuarine Sections of the Rivers Flowing into the Kiev Reservoir
17-31
10.1615/HydrobJ.v50.i6.20
Ye. N.
Tsaplina
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
O. P.
Kholod'ko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
M. I.
Linchuk
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
higher aquatic plants
estuarine sections of rivers
the Kiev Reservoir
bottom sediments
oxygen regime
nutrients
organic matter
ecological state.
The thickets of higher aquatic plants were studied in the estuarine sections of the rivers flowing into the upper section of the Kiev Reservoir. The intensity of the development of higher aquatic plants and their influence on the ecological state of the studied sections were investigated.
Trophic Competition of Common Sculpin and Stone Loach with Juvenile Salmons of Gen. Salmo in Tributaries of the Onega Lake
32-40
10.1615/HydrobJ.v50.i6.30
Yu. A.
Shustov
Petrozavodsk State University Petrozavodsk, Russia North Research Institute of Fishery Petrozavodsk, Russia
I. A.
Tyrkin
Petrozavodsk State University Petrozavodsk, Russia North Research Institute of Fishery Petrozavodsk, Russia
Ye. N.
Rasputina
Petrozavodsk State University Petrozavodsk, Russia North Research Institute of Fishery Petrozavodsk, Russia
Atlantic salmon Salmo salar
brown trout Salmo trutta
freshwater fishes
diet
feeding activity.
Over summer there is no food competition of juvenile salmon and brown trout with common sculpin and stone loach because of different diets. In winter food spectra are almost similar, however feeding activity is low and thus food competition is also negligible. Food competition of both juvenile salmons with sculpin and especially with stone loach is noted in autumn, when the feeding activity is high, whereas aerial insects are absent and diet consists exclusively of aquatic invertebrates.
Effects of Ferric Sulfate on Quick Behavioral and Physiological Responces of the Great Ramshorn Snail (Molluska: Gastropoda: Pulmonata)
41-46
10.1615/HydrobJ.v50.i6.40
A. P.
Stadnichenko
Ivan Franko Zhytomyr University Zhytomyr, Ukraine
Planorbarius corneus
ferric sulfate
poisoning
behavioral and physiological responses.
The impact of ferric sulfate FeSO4·7H2O on fast (48 h) behavioral and physiological responses of the great ramshorn snail was investigated. Concentration of toxicant and terms of appearance of avoidance reaction, mucus forming on the body surface, diffuse edema of head and podium and loss of tactile sensitivity were determined.
Content of Nucleic Acids in Gonads, Sperms and Eggs of the Mussel Mytilus galloprovincialis at Natural Spawning and under Thermal Stimulation
47-51
10.1615/HydrobJ.v50.i6.50
N. V.
Karavantseva
Institute of Biology of Southern Seas National Academy of Sciences of Ukraine
S. A.
Shcherban'
Institute of Biology of Southern Seas National Academy of Sciences of Ukraine
Mytilus galloprovincialis
protein synthesis
reproductive products
gonads
total RNA
DNA
spawning
reproductive cycle.
Peculiarities of protein synthesis in generative tissues of Mytilus galloprovincialis Lam. were investigated. For the first time the RNA and DNA content in reproductive products of males and females and their total content in gonads at different stages of reproductive cycle of natural spawning and under thermal stimulation has been determined. To the time of spawning the nucleic acid content in the generative tissues increases up to 3 times and does not depend on sex. It was noted that total amount of DNA in dry sperm was 9 times higher than in dry eggs.
Dependence of Humoral Immunity Parameters of Bream Abramis brama over Fattening Period on State of the Forage Resources
52-57
10.1615/HydrobJ.v50.i6.60
V. R.
Mikryakov
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russia
N. I.
Silkina
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russia
D. V.
Mikriakov
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russia
A. I.
Bakanov
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russia
bream
immunity
macrozoobenthos
immune-deficit specimens
chironomids
oligochaetes
mollusks.
Results of the long-term researches on variability of humoral factors of natural immunity of bream (Abramis brama L.) of the Rybinsk reservoir over the fattening period at various biomasses and composition of forage objects are analyzed. Connection of functional characteristics of immunity and macrozoobenthos' abundance and structure is established. Breams, caught over low abundance of the benthic organisms, were characterized by high portion of immune-deficit specimens and moderate values of antimicrobial properties of blood serum.
Mechanisms of Income, Distribution and Excretion of Metals in the Fish Organisms (a Review)
58-68
10.1615/HydrobJ.v50.i6.70
N. Yu.
Yevtushenko
National University of Life and Environmental Sciences of Ukraine, Kiev, Ukraine
S. V.
Dudnyk
National University of Bioresources and Nature Management of Ukraine, Kyiv, Ukraine; Taras Shevchenko Kyiv National University
Kyiv, Ukraine
essential and toxic metals
fishes
distribution
detoxification
excretion
Paper deals with analysis of data regarding actual concepts on income, distribution, transformation, bio-accumulation, detoxification and excretion of metals in the fish organism.
Lipid Metabolism in Nuclei of Muscular Cells of the Freshwater Fishes at Adaptation to the Zinc and Cadmium Ions Impact
69-77
10.1615/HydrobJ.v50.i6.80
Yu. I.
Senyk
Ternopil Teachers'-Training University Ternopil, Ukraine
carp
pike
white muscles
non-polar lipids
phospholipids
The changes of the lipid content of the cell nuclei of white muscles of carp (Cyprinus carpio L.) and pike (Esox lucsus L.) under the imppact of Zn2+ and Cd2+ were studied. Content of non-polar lipids, phospholipids and relation of their fractions were shown to change under the impact of both metals. Lipid composition adaptation is aimed at mobilization of separate fractions pool in order to modulate lipid bilayer to counteract metal ions impact.
Effect of Temperature Growth on Lysozyme and Protein Content in Several Freshwater Fishes, Infested and Not-infested by Ectoparasites
78-86
10.1615/HydrobJ.v50.i6.90
L. Ya.
Kurovskaya
Institute of Zoology National Academy of Sciences of Ukraine Kyiv, Ukraine
V. N.
Lysenko
Institute of Zoology National Academy of Sciences of Ukraine Kiev, Ukraine
fishes
temperature
lysozyme
protein
ectoparasites
The effect of the water temperature growth from 15 to 25°Conthe infestation rate of fishes (carp Cyprinus carpio, crucian carp Carassius auratus gibelio, stone moroco Pseudorasbora parva, and bester Huso huso×Acipenser ruthenus) by ectoparasites, lysozyme and protein content in tissues and organs was investigated. Number of ectoparasites in all considered fishes at temperature growth to 25°C significantly reduced. Changes of lysozyme and protein content in blood plasma, kidneys and spleen of fishes were determined.
Dissolved Carbohydrates in the Surface Water Bodies of Ukraine
87-107
10.1615/HydrobJ.v50.i6.100
P.N.
Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ya. S.
Ivanechko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
dissolved carbohydrates
polysaccharides
monosaccharides
molecular-mass distribution
lakes
rivers
reservoirs
Results of the study of the content of dissolved carbohydrates and their seasonal distribution in surface water bodies of various types (lakes, rivers, and reservoirs) are analyzed in the paper. It has been shown that the concentration of organic compounds of this group varies over a wide range − from 0.4 to 4.9 mg/L (in calculating per glucose content) depending on the type of a water body and its trophic state. The highest concentration of carbohydrates was observed in the Ternopol Reservoir located on the Seret River (within the territory of the town of Ternopol) and in the second Kitayevo pond (within the territory of Kiev). In terms of the average per year values, a relative content of carbohydrates varies from 4.7 to 16.4% of the total content of carbon of dissolved organic matter (Corg). Data on the content of this organic matter in various water bodies of the other regions of the world are also given. In the studied water bodies, carbohydrates are represented by the compounds with a wide interval of their molecular mass − from < 1.0 to > 70.0 kDa. However, high molecular compounds (polysaccharides) prevail in their composition. Their contribution to the total content of dissolved carbohydrates on the average accounts for 67.7−83.7%. Seasonal variations in the content of a low molecular fraction of carbohydrates (< 1.0 kDa) are considered.
CONTENTS FOR 2014
108-112
10.1615/HydrobJ.v50.i6.110