Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
50
5
2014
Concept of Techno-Ecosystem in Technical Hydrobiology
3-15
10.1615/HydrobJ.v50.i5.10
A. A.
Protasov
Institute of Biodiversity and Ecosystem Studies of Bulgarian Academy of Sciences, Sofia, Bulgaria; Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, 04210, Ukraine
technical hydrobiology
techno-ecosystem
biosphere
power plants
biological hindrances
The question on the structure, aims and tasks of technical hydrobiology is discussed. The concept of techno-eñosystem as the main object of technical hydrobiology is considered. Certain features of the techno-eñosystems, such as peculiar biotopic structure, high-gradient conditions, low predictability of behavior and development are marked out. The concept of ecosystem-biogeocenotic gradient is introduced. The place of the techno-eñosystem in biosphere is considered
Seasonal Dynamics of the Quantitative Indices of Phytoplankton Development in the Upper Section of the Southern Bug River
16-26
10.1615/HydrobJ.v50.i5.20
Ye. P.
Belous
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
T. F.
Shevchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
P. D.
Klochenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
phytoplankton
numbers
biomass
seasonal dynamics
species number
dominant species
the Southern Bug River
Seasonal dynamics of plankton algae species number, their numbers and biomass, and also of the complex of dominant species, were studied in the upper section of the Southern Bug River located within the territory of the town of Khmelnitskiy. Several peaks of algae development were revealed during the period of investigations. The highest number of phytoplankton species caused by a sharp increase in the number of green algae species was registered in July. The maximum numbers of phytoplankton conditioned by the development of blue-green algae were observed also in July. Seasonal dynamics of phytoplankton biomass were characterized by the presence of two peaks. The first peak conditioned by the development of diatoms was registered in June, whereas the second peak caused by intensive development of Dinophyta and Bacillariophyta − in September.
Relationship between Chlorophyll α Content and Some Phytoplankton Characteristics in Fish Ponds and Adjacent Watercourses
27-34
10.1615/HydrobJ.v50.i5.30
B. V.
Adamovich
Institute of Fishery Minsk, Belarus; Belarus State University Minsk, Belarus
A. A.
Zhukova
Belarus State University Minsk, Belarus
phytoplankton
biomass
dimensional composition
chlorophyll
Relationship between phytoplankton characteristics (biomass, taxonomic structure, and dimensional composition) and chlorophyll α content in fish ponds of the "Vileyka" fish farm and in adjacent watercourses, including the Smerdiya and Viliya rivers, is analyzed in the paper.
Interannual and Seasonal Changes in the Concentration of Chlorophyll α and Primary Production in the Deepwater Section of the Black Sea
35-46
10.1615/HydrobJ.v50.i5.40
I. V.
Kovaleva
Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
primary production
chlorophyll α
temperature
light
phytoplankton
euphotic layer.
Data on changes in water temperature and chlorophyll concentration in the surface layer of the deepwater section of the Black Sea registered in 1978−2008 are generalized in the paper. The pattern of long-term dynamics of phytoplankton primary production is judged from these data, and also from changes in the intensity of illumination and phytoplankton physiological activity. The average per month changes in primary production in the cold and warm periods are analyzed. The trends of phytoplankton productivity, water temperature, and chlorophyll α content were calculated in terms of their average per month values. For 30 years, valid trends of the studied parameters were not revealed. The maximal concentration of chlorophyll α was observed at a low temperature of water in winter and spring, whereas its minimal concentration − in summertime.
Analysis of Pheolcarbonic Acids Content in Phytomass of Higher Aquatic Plants
47-60
10.1615/HydrobJ.v50.i5.50
O. M.
Usenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
I. M.
Konovets
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
higher aquatic plants
phenolcarbonic acids
flavonoids
high-performance liquid chromatography
The qualitative and quantitative composition of phenolcarbonic acids in phytomass of higher aquatic plants of different ecological groups (Scirpus lacustris, Ceratophyllum demersum, Potamogeton perfoliatus and Nuphar lutea) was analyzed by the HPLC/MS method. Analysis of the phenolcarbonic acids content in plants using clustering by the Pearson's correlation coefficient is presented. Hypothetical scheme of flavonoids forming over phenolcarbonic acids biosynthesis in macrophytes has been proposed.
Polymorphism of the Round Goby Neogobius melanostomus of the Odessa Bay and Coastal Zone of the Zmeiniy Island by β-esterases' Loci
61-70
10.1615/HydrobJ.v50.i5.60
V. V.
Zamorov
Odessa National University, Odessa, Ukraine
D. B.
Radionov
Odessa National University Odessa, Ukraine
round goby Neogobius melanostomus
esterases
molecular form of enzymes
polymorphism
alleles' frequency
The genetical structure of groups of the round goby Neogobius melanostomus from the Odessa bay and coastal zone of the Zmeiniy Island (the Black Sea) in terms of loci, encoding β-esterases has been analyzed. Polymorphism and changes of frequency of the alleles, encoding isozymes of esterase-1 and esterase-2 was studied. It was supposed that specimens of two considered habitats belong to different intra-species groups.
Physiological-Biochemical State of the River Perch Perca fluviatilis under Different Conditions of Wintering
71-77
10.1615/HydrobJ.v50.i5.70
M. V.
Prychepa
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
Cortisol
lactate dehydrogenase activity
glycogen
oxygen content
river perch.
Paper deals with role of cortisol in regulation of stress reactions of perch from different habitats in winter. The hormone was shown to promote adaptation processes in fish at physiological and biochemical levels under the impact of unfavorable environmental factors.
Effect of Rest Period on Germination of the Common Reed Seeds from the Water Bodies of the Chornobyl Exclusion Zone
78-88
10.1615/HydrobJ.v50.i5.80
N. L.
Shevtsova
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
A.A.
Yavniuk
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
D. I.
Gudkov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
common reed
Phragmites australis
water bodies of the Chornobyl exclusion zone
viability of seeds
chronic ionizing radiation
low doses
Effects of chronic irradiation by low doses of ionizing radiation on viability of the common reed Phragmites australis (Poacea) from the water bodies of the Chornobyl exclusion zone were studied. Indexes of germinating capacity, germinative energy, viability of seedlings and survival rate of seeds depending on radiation dose were determined. Effect of the "rest period" was revealed, that is increase on average by 20−25% of germinating capacity and viability of seedlings of the plants, growing under the chronic irradiation, after 6−7 months of rest under absence of irradiation. Reliable correlation was stated between physiological state of the reed seeds and absorbed dose rate of the parental plant.
Seasonal and Spatial Changes in the Content and Molecular Mass Distribution of Carbohydrates in the Surface Waters
89-98
10.1615/HydrobJ.v50.i5.90
V. P.
Osipenko
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
carbohydrates
content
molecular mass distribution
surface waters
The content and molecular mass distribution of the dissolved carbohydrates were studied in water bodies of various types: in the Desna River, in the Kiev and Kanev reservoirs, in the Tsentralnoye and Verbnoye lakes, and in the Orekhovatskiy pond N 2. Changes in relationship between the fractions of carbohydrates differing in their molecular mass with space and time have been described. In all the studied water bodies in the surface layer of water, the highest content of carbohydrates, and also of their high molecular (> 30 kDa) fraction, was observed in spring and summer, whereas their lowest content − in winter. The low molecular (< 1 kDa) fractions of carbohydrates prevailed in summer in the near bottom layer of water during the period of oxygen deficiency. It has been found that in the upper section of the Kiev Reservoir the concentration of high molecular fractions of carbohydrates was higher than that in its lower section.
Experimental Studies on the Formation of Methane in the Surface Water Bodies Heavily Polluted by Cadmium
99-109
10.1615/HydrobJ.v50.i5.100
D. N.
Gar'kusha
Hydrochemical Institute Rostov-na-Donu, Russia Southern Federal University Rostov-na-Donu, Russia
Yu. A.
Fedorov
Hydrochemical Institute Rostov-na-Donu, Russia Southern Federal University Rostov-na-Donu, Russia
mesocosms
water column
gas regime
methane
cadmium
Model experiments carried out in mesocosms placed in the fish pond made it possible to simulate the peculiarities of methane formation at a high concentration of cadmium belonging to the most toxic heavy metals. The concentration of cadmium essentially exceeding its limiting permissible concentration results in the death of hydrobionts and in their gradual destruction and sedimentation to the bottom of mesocosms, which in its turn results in the decrease in the content of oxygen dissolved in the water, and also in the increase in the intensity of anaerobic processes, including methane genesis, both in the water and in bottom sediments.