Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
53
1
2017
The Long-term Dynamics and Distribution of Dreissena Veligers in the Cooling Pond of the Khmelnytsk NPP and Their Role in Zooplankton Structure
3-16
10.1615/HydrobJ.v53.i1.10
Yu. F.
Gromova
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kyiv, 04210, Ukraine
O.O.
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
Dreissena veligers
zooplankton
abundance
structure
distribution
cooling pond of NPP
hydrodynamic circulation
Dynamics of abundance of Dreissena veligers along with quantitative characteristics of zooplankton in the cooling pond of the Khmelnytsk NPP was considered on the basis of the long-term observations (2005-2015). Average
numbers and biomass of veligers in the cooling pond in summer and early autumn varied within the limits 38-103 353 specimens/m3 and 0.1-694.4 mg/m3. Over mass development (June - July) they served as an important component of zooplankton (on average up to 32.8% of total numbers and 19.4% of biomass). At the initial stage (2005), after Dreissena polymorpha (Pall.) invasion into the cooling pond (in 2002-2003) veligers were abundant, their portion in zooplankton numbers and biomass on average amounted to 15.0%. Maximums of their abundance were registered in July 2008 and June 2009, minimum - in September 2010. Invasion of Dreissena bugensis (Andr.) in 2012 did not notably affect zooplankton structure. Distribution of Dreissenà veligers in sections of the cooling pond as a rule was uneven. High abundance was character for the middle section of diapason of the thermal remoteness (ratio of temperature at the certain site and maximal temperature in the cooling pond - at point of the heated waters discharge). Heterogeneity of the veligers' distribution was conditioned by both temperature and hydrodynamics processes, which determine patterns of temperature characteristics in the given technogeneous water body. Quantitative characteristics of veligers decreased along with wind-directed technogeneous current.
Effect of Solar Radiation and Water Temperature on Development of Phytoplankton in the Kaniv Reservoir
17-25
10.1615/HydrobJ.v53.i1.20
G. M.
Zadorozhna
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
phytoplankton
the Kaniv reservoir
water temperature
solar radiation
The monitoring studies, carried out in the upper section of the Kaniv reservoir, showed direct correlation between phytoplankton species number, numbers, biomass and total solar radiation (Q) and water temperature. Over periods of maximal Q and water temperature number of phytoplankton species decreased, whereas its numbers and biomass increased. Absolute values of solar radiation and water temperature, at which the leading taxonomic groups of phytoplankton reached maximal abundance, were determined.
Alien Species of Invertebrates and Fish in River Ecosystems of Belarus: Distribution, Biological Contamination, and Impact
26-40
10.1615/HydrobJ.v53.i1.30
V. P.
Semenchenko
Scientific and Practical Center on Bioresources
National Academy of Sciences of Belarus
Minsk, Belarus
V. K.
Rizevskiy
Scientific and Practical Center on Bioresources
National Academy of Sciences of Belarus
Minsk, Belarus
alien species
invertebrates
fish
pathways and vectors of
invasion
biological contamination
ecological influence
The concept of biological contamination of aquatic ecosystems and methods of its assessment are considered in the paper. Data on the distribution, main pathways and vectors of invasion, and also the influence of global factors on the processes of invasion are discussed. The effects registered as a result of invasion of alien species of invertebrates and fish into river ecosystems of Belarus have been analyzed. It has been shown that the main factors responsible for this process include hydrotechnical construction in Ukraine, navigation, and natural
distribution of species. The examples of an adverse effect of invasive species on aboriginal species and communities are also given.
Phenetic Relations and Problem of Species Identification of the Genus Batrachocottus (Pisces: Cottidae)
41-49
10.1615/HydrobJ.v53.i1.40
B. E.
Bogdanov
Limnological Institute of the Siberian Branch of RAS Irkutsk, RF
gen. Batrachocottus
seismo-sensitive system
morphometrics
phenetic relations
Baikal
It was found that four species of the Baikal endemic genus Batrachocottus form a «chain of forms» owing to overlaps in the variability of morphometric characteristics. A key to the species determination is proposed based on non-metric characteristics.
Content of Proteins, Carbohydrates, and Lipids in the Cells of Green Algae at Short-Term Temperature Fluctuations
50-59
10.1615/HydrobJ.v53.i1.50
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 cultures
proteins
carbohydrates
lipids
temperature
Results of the study of dynamics of the total content of proteins, carbohydrates, and lipids in some green algae in response to the influence of short-term temperature fluctuations (± 10°) are given in the paper. It has been found that sharp changes in temperature result in reversible redistribution of the content of biochemical components in the cells of green algae, which is
species-specific and depends on culture age. Temperature decrease results in the increase in the content of carbohydrates, whereas its increase - in the decrease in
the content of lipids.
Content of Pigments in Cladophora glomerata under the Influence of Copper (II) and Manganese (II) Ions in the Aquatic Environment
60-68
10.1615/HydrobJ.v53.i1.60
O. O.
Pasichna
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
filamentous algae
aquatic environment
copper
manganese
toxicity
chlorophyll a
chlorophyll b
carotenoids
accumulation
monitoring
The influence of copper (II) and manganese (II) ions alone and in mixture on the content of chlorophyll a, chlorophyll b, and carotenoids was studied on the example of the green filamentous alga Cladophora glomerata. The concentrations of metals were closely similar to those observed in natural waters. It has been found that the combined influence of copper and manganese ions (0.5 mg/L Cu2+ and 5 mg/L Mn2+) resulted in the increase in the content of pigments in C. glomerata. The combined influence of copper and manganese ions (10-20 μ;g/L Cu2+ and 100-200 μ;g/L Mn2+) on the pigment system of C. glomerata was less toxic than their individual influence, which is accounted for by antagonism of these metal ions during the process of their accumulation by
algae. The capability of C. glomerata to accumulate large amounts of copper and manganese makes it possible to use this alga as the monitor of aquatic environment contamination by metal ions, and also for their purification.
Modification of Lipid Composition in Sponge Lubomirskia baikalensis under Elevation of Temperature in Experiment
69-77
10.1615/HydrobJ.v53.i1.70
O. Yu.
Glyzina
Limnological Institute SB RAS
Irkutsk, RF
S. V.
Bazarsaduyeva
Baikal Institute of Nature Management SB RAS
Ulan-Ude
A. V.
Glyzin
Limnological Institute SB RAS
Irkutsk, RF
L. D.
Radnayeva
Baikal Institute of Nature Management SB RAS
Ulan-Ude; Buriatia State University
Ulan-Ude, RF
V. V.
Taraskin
Baikal Institute of Nature Management SB RAS
Ulan-Ude; Buriatia State University
Ulan-Ude, RF
T. N.
Basharina
Limnological Institute SB RAS
Irkutsk, RF
V. B.
Itskovich
Limnological Institute SB RAS
Irkutsk, RF
freshwater sponge
sterols
aldehydes
fatty acids
adaptation
temperature
Baikal
freshwater aquarium complex
Variability of lipid fraction composition (fatty acids, aldehydes, sterols) in the endemic Baikal sponge Lubomirskia baicalensis Pallas was investigated.
Peculiarities of lipid composition of the sponge at elevation of water temperature as way of adaptation and regulation of symbiotic relations in communities of the endemic sponges of Baikal were considered.
Embryonic and Early Postembryonic Development of Carp and Activity of Enzymes of the Energy and Plastic Metabolism under Impact of Water Temperature Fluctuations
78-86
10.1615/HydrobJ.v53.i1.80
O. M.
Vodianitskiy
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.
Zinkovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
carp
embryonic development
water temperatures
dissolved oxygen content
enzymatic activity
The influence of temperature fluctuations and dissolved oxygen content on embryonic and early postembryonic development of carp has been investigated. It was found that the atypical increase of water temperature over the spawning
period and decrease the dissolved oxygen content negatively affect vitality of embryos. These conditions cause delay of the embryonic stages, change the weight and size of larvae, affect activity of key enzymes, at this energy metabolism partially switches from aerobic to anaerobic. Growth of water temperature decreases the activity of proteases, which directly affect the embryo's organogenesis.
Content and Forms of Lead Migration in Surface Waters
87-108
10.1615/HydrobJ.v53.i1.90
P.N.
Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
V. A.
Zhezherya
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
lead
forms of migration
labile fraction
complex
compounds
humic substances
carbohydrates
molecular-mass distribution
rivers
reservoirs
lakes
Results of long-term investigations of Pb(II) in surface water bodies (rivers, reservoirs, and small lakes) of Ukraine, and also data on its content in surface
waters of other countries of the world, have been generalized in the paper. It has been shown that in water bodies and watercourses of Ukraine the maximal concentration of this chemical element was observed in the late 1980s. With time, it decreased with decreasing the intensity of industrial production, and also with decreasing the influence of anthropogenic factor. In surface waters of other countries of the world, the content of Pb(II) essentially differs. Some water bodies are clean, whereas others are heavily polluted by the compounds of lead,
which is conditioned by their dislocation near metallurgic complexes, or by their contamination by sewage. Relationship was established between the suspended and dissolved forms of Pb(II). It has been found that the suspended form of lead
prevails in river waters, whereas its content depends on the mass of suspended matter. The content of the dissolved forms of Pb(II) is also discussed. It has been found that the contribution of its labile fraction (potentially bioavailable and toxic) is not more than 2.4-11.2% Pbdis. The major portion of Pbdis was found in the composition of its complex compounds with dissolved organic matter. Humic substances are of considerable importance in the process of complexation. In small water bodies, carbohydrates are also involved in the process of Pb(II) binding. The compounds with the molecular mass ≤ 2.0 kDa
prevail among anionic complexes of Pb(II).