Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
51
3
2015
On Contour Structure of Biosphere
3-24
10.1615/HydrobJ.v51.i3.10
Yu.P.
Zaytsev
Institute of Marine Biology, National Academy of Sciences, Odessa, Ukraine
neuston
contour biotopes and communities
environmental
monitoring
Development of the scientific heritage of V.I. Vernadsky showed that in his "life films" at the borders of hydrosphere with atmosphere and lithosphere, where the basic biogeochemical processes on Earth occurs, even more thin structures are located - contour biotopes with specific communities of
contourobionts, which play a key role in functioning of the aquatic ecosystems and are highly sensitive to external impacts. They are called "environmental sentinels" and were proposed to be used in the environmental monitoring.
Characteristics of Macrozoobenthos Cenoses of the Kremenchug Reservoir of the Dnieper River as the Basis of the Assessment of Its Potential Biological Resource
25-44
10.1615/HydrobJ.v51.i3.20
Yu. V.
Pligin
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
S. V.
Kruzhilina
Institute of Fishery, Ukrainian Academy of Agrarian Sciences, Kyiv, Ukraine
macrozoobenthos
reservoir
cenosis
bottom sediments
food resource
fish nutrition
Modern cenotic structure of macrozoobenthos of the Kremenchug Reservoir includes nine cenoses. Data on their localization within the area of water of the reservoir, occupied area, and also on the composition of dominant species and quantitative indices of their development, are given in the paper. A new index of biocenotic similarity of macrozoobenthos cenoses was put forward. The role of
the main components of macrozoobenthos cenoses as the trophic resource of commercial benthophage fish was determined.
Structural and Functional Organization of Phytoplankton in the Thickets and in the Sections Free of Vegetation in the Lakes of Kiev
45-60
10.1615/HydrobJ.v51.i3.30
P. D.
Klochenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
T. F.
Shevchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
G. V.
Kharchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
phytoplankton
higher aquatic plants
species composition
taxonomic structure
numbers
biomass
intensity of photosynthesis
The species composition, taxonomic structure, and quantitative indices of phytoplankton development, and also its functional activity, were studied in the sections of the lakes significantly differing in the intensity of illumination (in the open sections and in the thickets of higher aquatic plants). It has been found that in the thickets the conditions for the development of plankton algae are unfavorable primarily as a result of a sharp decrease in the intensity of
illumination. This resulted in the decrease in the quantitative indices of phytoplankton development (numbers − on the average by a factor of 1.8, whereas biomass − by a factor of 2.4), and also in the decrease in its functional activity. The increase in the number of species and some changes in the
taxonomic structure of phytoplankton in the thickets of higher aquatic plants were conditioned by the influx of epiphyton algae occurring in the fouling of higher aquatic plants into water column. Algal species typical to phytoplankton
of the thickets were not found.
Phyto- and Zooplankton of the Lower Reaches of the Belaya River (Russian Federation, Republic of Bashkortostan) as the Indices of Their Ecological State
61-68
10.1615/HydrobJ.v51.i3.40
F. B.
Shkundina
Bashkiria State University Ufa, Russian Federation
D. I.
Sakhabutdinova
Bashkiria State University Ufa, Russian Federation
phytoplankton
zooplankton
syntaxonomic analysis
ecological and floristic classification
Phytoplankton and zooplankton of the lower reaches of the Belaya River were studied in the Blagoveshchensk region of the Republic of Bashkortostan (Russian Federation). The increase in the intensity of anthropogenic eutrophication was accompanied by the increase in the quantitative indices of phytoplankton and zooplankton development, and also by changes in the
complex of dominant species. The use of syntaxonomic analysis made it possible to determine diagnostic taxa and communities indicative of the increase in the degree of eutrophication.
Intensive Cultivation of Dunaliella salina for Production of Biomass with Elevated β-carotene Content. Communication 1. Effect of Cultivation Factors
69-76
10.1615/HydrobJ.v51.i3.50
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
beta-carotene
productivity.
Comparative assessment of effect of various physico-chemical factors on accumulation of β-carotene in intensive culture Dunaliella salina was carried out. It was shown that light provision prevails over stress impact of temperature,
salinity and exposition.
Bacteria Numbers and Proteolytic Activity in the Water of the Lake Located within the Urban Territory
77-86
10.1615/HydrobJ.v51.i3.60
V. M.
Yakushyn
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A. S.
Potrokhov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
O. G.
Zinkovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
G. M.
Romanishin
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
K. P.
Kalenichenko
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
Lake Opechen-upper
physical and chemical conditions
bacterioplankton
proteolytic activity
immune enzymatic analysis
Seasonal dynamics of bacterioplankton numbers were studied in Lake Opechen-upper located within the territory of Kiev. Proteolytic activity in the water and its seasonal changes were studied using immune enzymatic analysis. It has been found that physical and chemical conditions in the water body and
anthropogenic load influenced microbiological indices and enzymatic activity. In summer and autumn, relationship was established between the numbers of bacterioplankton and proteolytic activity in the water, which is indicative of the
significant role of bacterioplankton in organic (protein) substances transformation in the water body.
Effect of Phosphorus Compounds on Aquatic Plants (a Review)
87-99
10.1615/HydrobJ.v51.i3.70
Ye. A.
Pasichna
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
L. O.
Gorbatiuk
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
O. M.
Arsan
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
M. A.
Savluchinskaya
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
I. G.
Kuklia
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
N. A.
Platonov
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
S. P.
Burmistrenko
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
aquatic plants
phosphorus compounds
water bodies
eutrophication
biological purification of waste waters
The paper generalizes literature data on different aspects of phosphorus compounds effects on vascular (higher) aquatic plants and algae. The sources and forms of phosphorus in aquatic systems have been considered. Data on accumulation and transformation of phosphorus by aquatic plants, its role in eutrophication and influence of nitrogen and phosphorus ratio on aquatic plants
have been analyzed. Perspectives of use of the aquatic plants for removal of phosphorus excess from water bodies have been discussed.
Forecasting of Hydrochemichal Regime of the Lower Dnieper Section using Neurotechnologies
100-110
10.1615/HydrobJ.v51.i3.80
V. I.
Pichura
Kherson State Agrarian University Kherson, Ukraine
Yu. V.
Pilipenko
Kherson State Agrarian University Kherson, Ukraine
F. N.
Lisetskiy
Belgorod State Research University Belgorod, Russia
O. E.
Dovbysh
Regional South-Dnieper branch of State Environmental Academy Kherson, Ukraine
hydrochemical regime
neural networks
multilayer
perceptron
forecast
time series.
Paper deals with algorithm and results of application of intellectual systems for forecasting of the hydrochemical regime of the lower Dnieper. based on neurotechnology. Nonlinear multilayer artificial neural networks for forecasting
of the main hydrochemical parameters have been created for the first time. Optimal parameters of the learning algorithm were identified; generalizing capability on the control sample and reliability of forecasting on the test sample of artificial neural networks were evaluated; forecast of hydrochemical regime till 2015 was realized.