Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
52
1
2016
Peculiarities of Group Growth of Specimens in Populations of the Narrow-clawed Crayfish Astacus leptodactylus
3-16
10.1615/HydrobJ.v52.i1.10
A. V.
Alekhnovych
Research-Practical Center of the National Academy of Sciences of Belarus on Bioresources,
Minsk, Belarus
narrow-clawed crayfish
dimensional-age structure
growth
Bertalanffy equation.
Dimensional and age structure of the narrow-clawed crayfish populations was analyzed. Crayfish growth is described by the Bertalanffy equation. Values of Bertalanffy growth parameters L∞ and k are not species-specific, even in the same region and relatively close habitat conditions they can vary within wide limits. Very weak inverse relation was found between L∞ and k, which makes invalid calculations of demographic characteristics on the basis of general equations of interrelation of populational and growth parameters. Growth constant k appears to be more informative than definitive body size (L∞).
Modern State of the Biota of the Selenga River Delta (Lake Baikal Basin) under Conditions of Unstable Hydrological Regime. Report 1. Microbial Community and Algae
17-29
10.1615/HydrobJ.v52.i1.20
N. A.
Bondarenko
Limnological Institute of Siberian Branch of Russian Academy of Sciences,
P.O. Box 4199, Irkutsk 664033, Russia
V. V.
Malnik
Limnological Institute Siberian Department Russian Academy of Sciences Irkutsk, Russia
V. S.
Vishnyakov
Limnological Institute Siberian Department Russian Academy of Sciences Irkutsk, Russian Federation; Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russian Federation
N. A.
Rozhkova
Limnological Institute Siberian Department
Russian Academy of Sciences Irkutsk, Russian Federation
V. N.
Sinyukovich
Limnological Institute Siberian Department
Russian Academy of Sciences Irkutsk, Russian Federation
A. S.
Gorshkova
Limnological Institute Siberian Department
Russian Academy of Sciences Irkutsk, Russian Federation
O. A.
Timoshkin
Limnological Institute, Siberian Department, Russian Academy of Sciences, Irkutsk, Russia
A. N.
Matveyev
Irkutsk State University Irkutsk, Russian Federation
microbial community
sanitary indicative bacteria
algae
hydrological regime
the Selenga River
Lake Baikal.
Comprehensive hydrobiological investigations were carried out in summer and autumn 2012 in the delta of the Selenga River at the highest (for the recent 14 years) water level in the river. The study of microorganisms, phytoplankton, and benthic macroalgae made it possible to characterize the cultivated microbial community and algal flora of the delta, and also to assess its water quality. The species composition and quantitative characteristics of benthic macroalgae development suggest that the studied region is eutrophic. The biomass of phytoplankton varied over a wide range. In the water of the Selenga River, the total numbers of bacteria were rather low (1.22−2.30 million cells/ml), which can be conditioned by a high water level in the river during the period of investigations. An assessment of water quality in terms of sanitary indicative microorganisms suggests that water quality in the delta of the Selenga River corresponds to sanitary rules and norms (SanPiN 2.1.5.980-00). Thus, it can be used for recreation.
Jellyfish Zooplankton in the Coastal and Open Regions of the Black Sea in Spring 2013
30-38
10.1615/HydrobJ.v52.i1.30
N. A.
Datsyk
Institute of Biology of Inland Waters Sevastopol
G. A.
Finenko
Institute of Biology of Inland Waters Sevastopol
G. I.
Abolmasova
Institute of Biology of Inland Waters Sevastopol
jellyfish zooplankton
Aurelia aurita
numbers
biomass
daily ration
zooplankton grazing
Data on the numbers, biomass, and population structure of jellyfish (Aurelia aurita and Pleurobrachia pileus) occurring in different regions of the Black Sea in spring 2013 are given in the paper. During this period, the biomass of A. aurita ranged from 15 to 1850 g/m2. Its maximal values were registered in the coastal regions of the Crimea. Adult specimens more than 50 mm in size prevailed. A. aurita consumed mainly Copepoda (Acartia sp.). Its daily ration accounted for 1.5−4.0 mg C/day, or 1−2.5% C of the body. It was essentially lower than food requirements of the animals under given temperature conditions.
Response of Phytoplankton of the Sevastopol Coastal Zone to Climate Peculiarities of the Years 2009−2012
39-48
10.1615/HydrobJ.v52.i1.40
I. M.
Serikova
Institute of Biology of South Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
Yu. V.
Briantseva
Institute of Botany National Academy of Sciences of Ukraine Kyiv, Ukraine
Yu. N.
Tokarev
Institute of Biology of South Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
S. V.
Stanichniy
Institute for Marine Hydrophysics, #2, Captains' St., Sevastopol, Crimea, Ukraine
V. V.
Suslin
Marine Hydrophysical Institute National Academy of Sciences of Ukraine Sevastopol, Ukraine
V. I.
Vasilenko
Institute of Biology of South Seas National Academy of Sciences of Ukraine Sevastopol, Ukraine
bioluminescence field
Dinophyta
sea surface temperature
thermal-haline structure
According to biophysical monitoring and satellite observations in the Sevastopol coastal zone since January 2009 till September 2012 seasonal and interannual dynamics of phytoplankton development and the bioluminescence field produced by it, temperature and salinity fields variability in the surface and upper 60-m layers were analyzed. It was shown that anomalies (deviation from the average level) of the sea surface temperature led to modifications in the phytoplankton taxonomical structure and seasonal variability of the vertical structure of the bioluminescence field.
Seasonal and Interannual Dynamics of Phytoplankton, Phytomicroepiphyton, and Nutrients Content in the River Section of the Kanev Reservoir
49-61
10.1615/HydrobJ.v52.i1.50
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
V. M.
Yakushyn
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A. M.
Zadorozhnaya
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
Natalya Ye.
Semenyuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine,
12 Geroyiv Stalingrada Av., Kiev 04210, Ukraine
M. I.
Linchuk
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
phytoplankton
phytomicroepiphyton
nutrients
the Kanev Reservoir
river section.
It has been found that in the river section of the Kanev Reservoir the intensity of phytoplankton and phytomicroepiphyton development distinctly varies from season to season, which is conditioned to a large extent by the content of inorganic forms of nitrogen and phosphorus in the water. At the same time, the content of inorganic nitrogen and phosphorus does not significantly vary from year to year, which is indicative of their stable content in the water of the Kanev Reservoir. It has been shown that N : P ratio essentially decreased as compared to the 1960−1970s. In this case, the minimal values of N : P ratio (6.6 ± 0.43) are registered in summertime, whereas its maximal values (32.3 ± 2.6) − in wintertime. Correlation was established between phytoplankton and phytomicroepiphyton indices of development and nutrients content. It is indicative of dynamic relationships in the "algal communities ↔ nutrients content" system.
Distribution and Ecological Peculiarities of Mollusks of Gen. Fagotia (Gastropoda: Pectinibranchia: Melanopsidae) in Water Bodies of Ukraine
62-69
10.1615/HydrobJ.v52.i1.60
N. M.
Makarova
Zhytomyr University Zhytomyr, Ukraine
Fagotia acicularis
F. esperi
distribution
ecology
effects of anthropogenic load.
Fagotia acicularis and F. esperi from 131 biotopes within the Danube, the Dnister, the South Bug, the Lower Dnieper, the Prypyat (the river Goryn and Sluch) basins were investigated. The retrospective analysis (since 1830−the first finding in Ukraine) and assessment of their actual distribution were carried out. Hydrological and hydrochemical regimes of habitats and ecological spectra of two species were established. Occurrence frequency, population density and biomass in all main rivers of Ukraine were given.
Changes in Zoobenthos of the Cooling Pond of the Khmelnitskiy NPS as a Result of the Invasion of Two Species of Mollusks (Dreissenidae)
70-80
10.1615/HydrobJ.v52.i1.70
A. A.
Sylaieva
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, 04210, Ukraine
T. I.
Stepanova
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
zoobenthos
cooling pond
taxonomic composition
numbers
biomass
Dreissena
invasive species
Changes in zoobenthos as a result of the invasion of Dreissena polymorpha and D. bugensis into the cooling pond of the Khmelnitskiy NPS are analyzed in the paper. Data on the taxonomic composition, numbers, and biomass of benthic invertebrates are also presented.
Organic Matter Decomposition in Bottom Sediments of the Reservoirs of the Volga and Kama Rivers. Role of Methanogenesis
81-88
10.1615/HydrobJ.v52.i1.80
A. N.
Dzyuban
Institute of Biology of Inland Waters, Russian Academy of Sciences, Borok, Russia
organic matter decomposition
bottom sediments
methanogenesis.
The peculiarities of microbial processes of organic matter decomposition and methane production in bottom sediments of the reservoirs of the Volga and Kama rivers were revealed as a result of long-term investigations. It has been shown that these processes are of considerable importance in the cycle of carbon. In addition, they essentially influence the environmental conditions.
Structure and Functional Activity of Bacterioplankton in Water within Macrophytes Thickets in the Coastal Zone of the Rybinsk Reservoir
89-98
10.1615/HydrobJ.v52.i1.90
N. A.
Lapteva
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russia
I. V.
Rybakova
Institute of Biology of Inner Waters Russian Academy of Sciences Borok, therefore
Ye. V.
Sukhanova
Limnological Institute Russian Academy of Sciences Irkutsk, therefore
N. L.
Bel'kova
Limnological Institute Russian Academy of Sciences Irkutsk, therefore; Irkutsk State University Irkutsk, RF
microbial communities
structure
taxonomic diversity
molecular-genetic analysis
production-destruction processes
macrophytes
The dynamics of structural and functional characteristics of microbial communities over vegetation period in zone of higher aquatic plants thickets of the Rybinsk reservoir has been studied. It was established that diversity of morphological forms and bacteria abundance in this zone is higher than in open sections. Genetic diversity of bacterial communities is represented by two main phyla: Cyanobacteria and Proteobacteria. Significant fluctuations of hydrochemical regime and production-destruction processes in the reservoir occur over active vegetation and decaying of plants.
Content of Proteins, Carbohydrates and Lipids in Biomass of Green Algae Under Different Temprerature of Cultivation
99-105
10.1615/HydrobJ.v52.i1.100
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
temperature
relative growth rate
proteins
carbohydrates
lipids
Content of biochemical components in cells of green algae was shown to be conditioned by their species specificity and to a significant extent dependent on external factors, particularly on temperature of cultivation. Maximal content of proteins was registered at optimal temperature interval. Deviation of temperature from its optimal values resulted in increase of carbohydrates and lipids content.
Effect of Thermal Conditions on Growth Processes and Glutamate Dehydrogenase Activity in Selected Species of Chlorophyta and Cyanoprokaryota
106-113
10.1615/HydrobJ.v52.i1.110
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
O. V.
Vasilenko
Ternopol National Pedagogical University, Ternopol; Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
Chlorophyta
Cyanoprokaryota
temperature
nitrogen metabolism
glutamate dehydrogenase
Paper deals with dynamics of growth and activity of glutamate dehydrogenase (NADH- and NADPH-dependent GDH) in Chlorophyta (Desmodesmus communis, Tetraedron caudatum) and Cyanoprokaryota (Aphanocapsa planctonica, Phormidium autumnale f. uncinata) under different temperature regimes. Maximal biomass of green algae was observed at 20°C, and Aphanocapsa planctonica − at 26 and 32°C. At maximal considered temperature (32°C) activity of NADN- and NADPH-GDH in Chlorophyta was significantly inhibited. Fluctuations of activity of both GDH forms in periphytic Cyanoprokaryota Phormidium autumnale f. uncinata under the influence of different temperature regimes were less pronounced than in other considered species.