Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
47
2
2011
Influence of the Daylight Duration and Water Temperature on Numbers and Demographic Composition of Population of Polyphemus pediculus (Crustacea: Cladocera)
3-14
10.1615/HydrobJ.v47.i2.10
L. G.
Butorina
Institute of Biology of Inland Waters of Russian Academy of Sciences, Borok, Yaroslavl' Region
Polyphemus pediculus
population
sexual composition
numbers
development cycle
daylight duration
temperature
correlation and multiple regression coefficients
type of photoperiodic reactions.
Numbers, demographic composition and ratio of sexes in P. pediculus population are affected by absolute value and vector variation of the daylight duration. Different types of specimens display their maximal numbers under different environmental conditions. Photoperiodic reaction of crustaceans belongs to a long-day type. Maximum population development and parthenogenetic females predomination are observed in a limited daylight duration range, from 15.5 to 17.5 hours per day. The daylight duration of 14 hours per day is a threshold, the beginning of mass transition into the dormant state. Period with the daylight duration 12 hours per day and less is unfavorable for the population.
Elimination of Limnic Zooplankton in the Rapid River (on the Example of Lake Kedrozero and the Lizhma River of the Lake Onega Basin)
15-23
10.1615/HydrobJ.v47.i2.20
A. N.
Kruglova
Institute of Biology Karelian Scientific Center Russian Academy of Sciences Petrozavodsk
I. A.
Baryshev
Institute of Biology Karelian Scientific Center Russian Academy of Sciences Petrozavodsk
zooplankton
river
elimination
flowing lake
biomass
The species composition of zooplankton and the quantitative indices of its development were studied in the Lizhma River upstream and downstream of Lake Kedrozero. Regular elimination of zooplankton, which can be described by the exponential equation, was observed in the rapid section of the river downstream of Lake Kedrozero. This is especially true of large species of Crustacea and Rotatoria.
Role of Dominant Species of Submerged Plants in Organic Matter Production in the Upper Section of the Kanev Reservoir
24-36
10.1615/HydrobJ.v47.i2.30
Ye. N.
Tsaplina
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
submerged plants
phytoepiphyton
organic matter production
the Kanev reservoir
The role of dominant species of submerged plants, and also of phytoepiphyton, in the process of organic matter production was studied in the upper section of the Kanev Reservoir. Relationship was established between production characteristics of submerged plants and hydrological and hydrochemical factors of the environment. Methodical approaches to the study of plants production characteristics were recommended.
Bacterioplankton and Bacteriobenthos as Biological Indicators of the Aquatic Ecosystems' State (a Review)
37-48
10.1615/HydrobJ.v47.i2.40
G. N.
Oleynik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
V.I.
Yurishinets
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ye. V.
Starosyla
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
bacterioplankton
bacteriobenthos
virioplankton
anthropogenic impact
biological indication
bioassays
Analysis and comprehension has been carried out of literature data on biological properties and ecological relations of bacterioplankton and bacteriobenthos, enabling to use them as biological indicators of the aquatic environment quality. Examples are given of application of traditional and new method of microorganisms' use as biological indicators. Reliability and information value of the certain methods application are discussed.
Peculiarities of Feeding of Blennius sanguinolentus (Coastal Zone of the Zmeiniy Island, the Black Sea)
49-54
10.1615/HydrobJ.v47.i2.50
F. P.
Tkachenko
Ukrainian Scientific Center of Ecology of Sea (UkrSCES), Ministry of Ecology and Natural Resources of Ukraine, 89, French Boulevard, Odessa 65009, Ukraine; Institute of Evolution, University of Haifa, Mt Carmel 31905 Haifa, Israel
V. P.
Gerasimiuk
Physical-Chemical Institute for Environment and Human Protection of the Ministry of Education
and Science of Ukraine and NAS of Ukraine,
3 Preobrazhenskaya Str., Odessa 65082, Ukraine; Department of Botany, Odessa I.I. Mechnikov National University, 2 Dvorianskaya Str., Odessa 65026, Ukraine
S. M.
Snigirev
Odessa National University Odessa Branch of the South Research Institute of the Marine Fishery and Oceanography
forage
seaweeds
diatoms
Blennius sanguinolentus
the Black Sea
The composition of food allowance of the herbivorous blenny Blennius sanguinolentus, usual in coastal area of the Zmeiniy Island, has been investigated. In the stomach of this fish 21 species of seaweeds (mainly Chlorophyta) and 35 species of diatom algae were found. Seaweeds and colonial diatoms were actively consumed; other algae and their epiphytes were consumed accidentally.
Hormonal Mechanism of Energy Supply of the Fish Adaptation to the Inorganic Nitrogen Impact
55-62
10.1615/HydrobJ.v47.i2.60
V. D.
Romanenko
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.
Zin'kovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
carp
cortisol
allochthonous nitrogen
adaptation
It was established, that cortisol is an important component in development of mechanisms of fish adaptation to the impact of high concentration of allochthonous nitrogen. Seasonal changes of cortisol content in the blood plasma were noted. At high cortisol content in blood fish metabolism became more intensive and needed significant expenses of the energy resources of the organism. Over period of active detoxication and excretion of excess ammonia from the organism, cortisol content in fish increased 1.5-8.9 times as compared with control.
Role of Bottom Sediments in Migration and Transformation of the Oil Products and Their Effect on Aquatic Organisms
63-70
10.1615/HydrobJ.v47.i2.70
O. M.
Arsan
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
L. O.
Gorbatiuk
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
T. M.
Shapoval
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
M. O.
Platonov
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
I. M.
Konovets
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
Yu. M.
Sytnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
I. G.
Kuklia
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
M. O.
Mironiuk
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev
S. P.
Burmistrenko
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
Yu. I.
Mamchych
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
bottom sediments
oil products
migration
transformation
aquatic ecosystem
hydrobionts
The role of the sandy and silty bottom sediments in migration and transformation of crude oil and diesel fuel (concentration 5, 15 and 30 MPC (maximum permissible concentration)) has been studied. The toxicity of the oil products for Cladocera depending on their concentration in water has been estimated.
Forming of Radiation Doses of Fishes of the Kiev Reservoir
71-78
10.1615/HydrobJ.v47.i2.80
Ye. N.
Volkova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
V. V.
Beliayev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
N. I.
Goncharenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
fishes
absorbed dose
the Kiev reservoir
137Cs
The forming of absorbed radiation dose for different fish species of the Kiev reservoir from incorporated radionuclides, water and bottom sediments was studied. At calculation peculiarities of the fishes' migratory behavior and spatial distribution of radionuclides in bottom sediments were taken into account. The absorbed radiation dose of fishes per year ranged from 400 to 7700 μ;Gy.
Parameters of 137Cs Accumulation by Fishes of the Cooling Pond after Removal of the Chernobyl NPS from Service (1998-2008)
79-85
10.1615/HydrobJ.v47.i2.90
O. L.
Zarubin
Institute of Nuclear Research, National Academy of Sciences of Ukraine, Kiev, Ukraine
A. A.
Zalisskiy
Institute of Nuclear Research National Academy of Sciences of Ukraine, Kiev; "Ekotsentr" State Specialized Scientific-Industrial Enterprise Chernobyl, Ukraine
V. A.
Kostyuk
Institute of Nuclear Research, National Academy of Sciences of Ukraine, Kiev, Ukraine
I. A.
Malyuk
Institute of Nuclear Research, National Academy of Sciences of Ukraine, Kiev, Ukraine
cooling pond of the Chernobyl NPS
fishes
137Cs
muscles
Cs content
Cs concentration factor
The content of 137Cs in the muscles of fishes of the cooling pond of the Chernobyl NPS was studied in 1998-2008. The content of 137Cs in the water decreased by a factor of 3. In Scardinius erythrophthalmus (L.) and Rutilus rutilus (L.), the content of 137Cs decreased. During the period of investigations, the content of 137Cs in Perca fluviatilis (L.) and Ictalurus punctatus (Raf.) remained almost unchanged. In all species of fishes, with the exception of Scardinius erythrophthalmus, 137Cs concentration factor validly increased.
Content of Metals Labile Fraction in Surface Waters as the Main Element in Assessing Their Potential Toxicity
86-96
10.1615/HydrobJ.v47.i2.100
P.N.
Linnik
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
metals
labile fraction
free ions
complexation
humus substances
potential toxicity
reservoirs
lakes
estuaries
Results of long-term studies on the content of the labile fraction of metals (Fe, Mn, Cu, Zn, Pb, Cr, and Cd) in surface waters of Ukraine by chemoluminescent methods, and also by the method of anode inversion voltamperemetry, are discussed in the paper. It is noted that the data on the concentration of free (hydrated) metal ions as the most toxic their form are essential in assessing their potential toxicity and ecological and toxicological situation in water bodies. It has been found that the contribution of the labile fraction of metals to the total content of their dissolved forms is mainly insignificant, with the exception of manganese. Seasonal dynamics of the concentration of free metal ions were investigated in the studied water bodies. A potential toxicity of metals in the aquatic environment was assessed taking into account the content of their labile fraction.
Peculiarities of Migration and Distribution of the Main Groups of Organic Matter in the Water of the Kiev Reservoir Depending on the Oxygen Regime
97-107
10.1615/HydrobJ.v47.i2.110
T. A.
Vasilchuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
V. P.
Osipenko
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
T. V.
Yevtukh
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
dissolved organic matter
humus substances
protein-like substances
carbohydrates
oxygen regime
reservoir
Results of the study of the component composition of dissolved organic matter in the water of the Kiev Reservoir depending on the oxygen regime are discussed in the paper. It has been found that humus substances incoming from the Pripyat River are of considerable importance in the formation of dissolved organic matter. The presence of large amounts of humus substances in the water of the reservoir is responsible for the formation of oxygen deficiency, which is used for their oxidation. Seasonal dynamics of the content of humus substances, protein-like substances and carbohydrates were investigated. The distribution of dissolved organic matter between the surface and near-bottom layers of water depending on the oxygen regime was studied.