Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
51
4
2015
Vertical Distribution of Biolumunescence Field Intensity in Water of the Black Sea in Autumn
3-11
10.1615/HydrobJ.v51.i4.10
Ye. B.
Mel'nikova
Institute of Biology of South Seas National Academy of Sciences of Ukraine, Sevastopol', Ukraine
N. V.
Liamina
Institute of Biology of South Seas National Academy of Sciences of Ukraine
luminescent hydrobionts
intensity of bioluminescent field
the Black Sea
vertical distribution
gamma distribution
The vertical structure of the bioluminescence field intensity and its relation with the hydrodynamic and hydrological features of the environment was investigated. The vertical profile of the bioluminescence field intensity can be approximated by a smooth curve of the gamma distribution function.
Zooplankton Community of a Small River under Abnormal Climatic Conditions (on the Example of the Kazanka River, Russian Federation)
12-20
10.1615/HydrobJ.v51.i4.20
O. Yu.
Derevenskaya
Kazan (Privolzhskiy) Federal University
Kazan, Russian Federation
N. M.
Mingazova
Kazan Federal University Kazan, Russian Federation
V. V.
Yakovlev
First Moscow State Medical University Moscow, Russian Federation
zooplankton
river
climate warming
restoration
contamination
Global warming is one of the peculiarities of climate changes at the present time. Prolonged periods with abnormally high temperature characterized by the absence of precipitation are responsible for the increase in dissolved solids content and in the degree of contamination. As a consequence, the species richness and numbers of zooplankton decrease, the complex of dominant species and zooplankton structure change, whereas the capability of aquatic ecosystems for self-purification decreases. A gradual restoration of the community is observed during next years. In the small river located within the temperate zone, the period of zooplankton community restoration is about two years.
Biotechnological Researches in the Institute of Hydrobiology of National Academy of Sciences of Ukraine
21-30
10.1615/HydrobJ.v51.i4.30
V. D.
Romanenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Yu. G.
Krot
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
Institute of Hydrobiology of NAS of Ukraine
department of environmental physiology of aquatic animals
hydrobionts' cultivation
water quality
state of aquatic animals
hydrophytic systems
waste waters purification
The paper describes the main stages of formation and development of biotechnology research in the department of environmental physiology of aquatic animals and biotechnological complex. The long-term fundamental and applied researches that promote development of biotechnology in the Institute of hydrobiology of National Academy of Sciences of Ukraine were analyzed.
Intensive Cultivation of Dunaliella salina as Way of Obtaining of Biomass with Elevated Content of β-carotene. Communication 2. Optimization of Cultivation Regime
31-38
10.1615/HydrobJ.v51.i4.40
A. V.
Borovkov
A.O.Kovalevsky Institute of Biology of Southern Seas, National Academy of Sciences of Ukraine, 2, Nakhimov Pr., 99011 Sevastopol, Ukraine
I. N.
Gudvilovich
Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
Dunaliella salina
intensive cultivation
light conditions
β-carotene
productivity.
Experimental researches on optimization of the two-stage system of green microalgae Dunaliella salina cultivation for production of biomass with elevated content of β-carotene have been carried out. In order to increase the β-carotene content in D. salina cells it is recommended to intensify the illumination 10 times at the deficit of nutrients at the second stage of cultivation.
Biochemical Composition of Green Algae at Different Stages of Their Growth
39-45
10.1615/HydrobJ.v51.i4.50
N. I.
Kirpenko
Institute of Hydrobiology,
National Academy of Sciences of Ukraine,
Kyiv, Ukraine
O. M.
Usenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
T. O.
Musiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
green algae
growth stages
proteins
carbohydrates
lipids
Dynamics of the total content of proteins, carbohydrates, and lipids in some species of green algae at different stages of their cultivation are analyzed in the paper. The periods characterized by the maximal content of these products in algal cells were revealed.
Changes in the Content of Photosynthetic Pigments in Representatives of Chlorophyta and Cyanoprokaryota at a High Temperature
46-56
10.1615/HydrobJ.v51.i4.60
I. N.
Nezbrytskaya
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
A. V.
Kureyshevich
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
algae
Cyanoprokaryota
temperature
growth
chlorophyll a
carotenoids
The growth of some species of Chlorophyta (Desmodesmus communis and Tetraedron caudatum) and Cyanoprokaryota (Aphanocapsa planctonica and Phormidium autumnale f. uncinata), and also the concentration of photosynthetic pigments (chlorophyll a and the sum of carotenoids) in their cells, was studied under the influence of various temperature regimes of the cultural medium (26, 32, and 38°C). It has been found that the pattern of changes in the studied indices depends on the species peculiarities of algae, on the temperature, and also on the duration of exposure. It has been found that Phormidium autumnale f. uncinata is most tolerant to the influence of extremely high temperature (38°C).
Peculiarities of Physiological-biochemical Interrelations in Symbiotic Communities of Freshwater Fishes under the Impact of Inorganic Nitrogen Compounds
57-66
10.1615/HydrobJ.v51.i4.70
V. D.
Romanenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
V. I.
Yuryshynets
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
O. S.
Potrokhov
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
O. G.
Zin'kovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
physiological-biochemical interrelation
Cortisol
Cyprinidae
symbionts
parasites.
Metabolic processes in fishes of the fam. Cyprinidae with different intensity of infestation by obligate symbionts − exo- and endoparasites under normal hydrochemical regime and high concentration of inorganic nitrogen compounds have been studied. Significant differences in hormonal regulation of metabolism and enzymatic activity of various tissues of the aquatic organisms under different endogenous (parasites) and exogenous (toxicant) influence were revealed.
Accumulation of Heavy Metals by Pond Snail Lymnaea stagnalis as Index of Pollution of Small Water Bodies
67-73
10.1615/HydrobJ.v51.i4.80
D. V.
Lukashov
Kyiv National University Kyiv, Ukraine
heavy metals
chemical pollution
pollution criteria
aquatic ecosystems
mollusks.
Content of heavy metals in mollusks' body was suggested to be used as a marker of their biological availability and as a parameter of chemical pollution of the aquatic ecosystems. Upper background content of metals in organism was used as a quantitative criterion of pollution degree. This parameter reflects excess enter of metal into the snail organism. The pond snail Lymnaea stagnalis L., common species of freshwater gastropods, was used for investigation of the small water bodies' pollution. In the water bodies of western and eastern regions of Ukraine background concentrations of Cd, Cu and Cr in the soft tissues of the snail were exceeded.
Distribution of Copper in the Tissues of Males and Females of Mytilus galloprovincialis
74-79
10.1615/HydrobJ.v51.i4.90
N. S.
Chelyadina
Institute of Biology of the Southern Seas Sevastopol
N. V.
Pospelova
Institute of Biology of the Southern Seas Sevastopol
Yu. P.
Kopytov
А.O. Kovalevsky Institute of Biology of the Southern Seas,
2, Nakhimov Ave., Sevastopol 299011, Crimea
Mytilus galloprovincialis
copper
the Black Sea
hepatopancreas
shells
perivisceral fluid
sexual cells.
The peculiarities of copper accumulation in the shells, hepatopancreas, gills, gonads, sexual cells, and perivisceral fluid of Mytilus galloprovincialis cultivated in the Black Sea in summer and autumn (taking into account the sex of mollusks) are discussed in the paper. Possible reasons of the difference in the capability of mollusk tissues to accumulate copper were analyzed. The contribution of each studied organ and all tissues of mollusks to the total content of copper accumulated in the mollusk was determined.
Molybdenum in Natural Surface Waters: Content and Forms of Occurrence (a Review)
80-103
10.1615/HydrobJ.v51.i4.100
P.N.
Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
I. I.
Ignatenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
molybdenum
forms of occurrence
complex formation
humic substances
rivers
reservoirs
lakes
Results of long-term investigations of molybdenum in various water bodies of Ukraine (rivers, reservoirs, and small lakes) and in surface waters of other regions of the world are given in the paper. In the water of the studied water bodies and watercourses, the total content of the metal accounted for 0.7−19.1 µg/L. The exception was the contaminated section of the Stugna River, where its maximal concentration was 91.8 µg/L. Molybdenum occurs mainly in the dissolved form − on the average 73.5−91.3% Mototal. In many water bodies, the concentration of molybdate-anion (MoO42−) as one of the form of its occurrence is lower than the degree of its detection by catalytic method. Only in the section of the Stugna River contaminated by molybdenum, the content of MoO42− was 26.5−73.0% Modis. The major portion of Modis was found in the composition of various groups of organic compounds. However, its maximal content (62.4−83.3 Mobound) was registered in the composition of the acidic group with a predominance of humic substances. In lake systems of Kiev, the major portion of Modis was observed in the composition of the neutral group of organic compounds (41.4−58.3% Mobound). Results of the study of the kinetics of molybdenum binding by humic substances and organic compounds of natural water are also discussed in the paper.
Mathematical Simulation of Water 'Bloom' Effect on Oxygen Regime
104-110
10.1615/HydrobJ.v51.i4.110
V. I.
Lavryk
Kyiv-Mogyla National University Kyiv, Ukraine
A. S.
Glazok
Kyiv-Mogyla National University Kyiv, Ukraine
mathematical model
photosynthesis
water "bloom"
simulation experiment
oxygen regime
Paper deals with development of mathematical model of the oxygen regime over water "bloom". Model accounts influence of the photosynthesis intensity on daily dynamics of dissolved oxygen (DO) and organic substances (in terms of BOD). A simulation (numerical) experiment was carried out by example of the Kyiv reservoir, which enabled to reveal possible changes of DO and BOD dependently on photosynthesis intensity over the water «bloom».