Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
41
2
2005
Application of Biodiversity Indexes to Assessment of the Water Body State and Water Quality
3-16
10.1615/HydrobJ.v41.i2.10
T. Ye.
Pavlyuk
Russian Research Institute of the Integrated Use and Protection of Water Recourses Yekaterinburg, Russian Federation
Some principles of the use of diversity of communities in assessment of quality of the environment, and water quality in particular, are considered. It is justified the use of the biodiversity parameters in three aspects. The first is connected with the use of richness of elements of a system, for example, a number of species, trophic groups, taxocenes, size groups, etc. The second aspect uses the evenness values, relative abundance of elements of the system, degree of domination of the species, life forms, trophic groups, etc. The third aspect is based on two-component diversity while taking into account a hypothesis of average disturbances.
Comparative Characteristics of Biodiversity of Macroinvertebrates Ecological Groups in the Kiliya Delta of the Danube River
17-35
10.1615/HydrobJ.v41.i2.20
A. A.
Sylaieva
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, 04210, Ukraine
A. A.
Etingova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
V. V.
Makovskiy
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ecological groups of macroinvertebrates occurring in various water bodies of the Kiliya delta of the Danube river were investigated. The quantitative characteristics of animal communities and their biodiversity were studied on the bottom free of vegetation, on the bottom among the thickets of higher aquatic plants, and in the fouling of higher aquatic plants. The structural and functional characteristics of these communities are considered. Saprobiological assessment of water quality was performed using the indicator species of the studied communities.
Spatial and Temporal Dynamics of Phytoplankton in the "River-Reservoir-River" System
36-41
10.1615/HydrobJ.v41.i2.30
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
O. V.
Bondarenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Dynamics of the species composition, numbers, biomass, structure of the complex of dominant species, and species diversity of phytoplankton of the Seret river and of the Ternopil reservoir were investigated. It has been found that changes in hydrobiological conditions in the "river-reservoir-river" system are responsible for non-uniform distribution of phytoplankton conditioned by the formation of ecotone zones. The highest quantitative indices of development of algae communities and their highest species diversity were observed in spring and summer.
Near-Bottom Zooplankton of the Littoral Zone of the Dnieper Reservoirs and Its Seasonal Dynamics
42-56
10.1615/HydrobJ.v41.i2.40
The species composition, quantitative indices of development, and structure of the near-bottom zooplankton of the littoral zone of some reservoirs of the Dnieper river were investigated. It has been found that in terms of the most parameters the near-bottom zooplankton essentially differed from the littoral and pelagic zooplankton, which makes it possible to conclude that the near-bottom zooplankton represents an individual group of zooplankton communities. Not only the number of species, their numbers and biomass, but also the ecological structure of the community, varied from season to season.
Biodiversity of the Ponto-Caspian Relict Fauna in the Danube Basin (Review)
57-79
10.1615/HydrobJ.v41.i2.50
T. A.
Kharchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Survey of biodiversity of the Ponto-Caspian relict fauna in the Danube catchment area suggests that its composition has been completed by 26 new species for the last quarter of the previous century. Among them, there are 8 species of copepods, 4 species of polychaetes, 1 species of leech, 1 species of gastropods, 4 species of amphipods, 2 subspecies of crayfishes, 4 species of cyclostomes, 1 species of gobies, and 1 species of sturgeons.
Combined Influence of Some Pollutants and Ultraviolet Radiation on Phytoplankton Photosynthesis
80-94
10.1615/HydrobJ.v41.i2.60
V. P.
Guseynova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
It has been found that in summertime ultraviolet radiation is capable of enhancing the inhibitory effect of some pollutants, including oil products (gasoline and diesel oil), heavy metals (copper), and to a lesser extent diphenols (hydroquinone), on the photosynthesis of plankton algae occurring in the surface layer of water.
Effect of Violet C Antiseptic on the Numbers of Ectoparasites and Some Physiological and Biochemical Indices of Carps
95-102
10.1615/HydrobJ.v41.i2.70
L. Ya.
Kurovskaya
Institute of Zoology National Academy of Sciences of Ukraine Kyiv, Ukraine
It was stated that treatment with violet C of carp young-of-the-year and yearlings affected by ectoparasites brings a good therapeutic effect. This antiseptic was maximally effective at 0.01-50 mg/L concentrations and the exposure range of 30 minutes to 6 days. The influence of the tested compound is accompanied by changes in some biochemical and hematological parameters of fish; these changes could be considered as adaptive responses.
Influence of Photoperiod on Growth and Intensity of Feeding of Fry of Some Fish Species
103-109
10.1615/HydrobJ.v41.i2.80
A. B.
Ruchin
Mordovian State University, Saransk, Russian Federation
V. S.
Vechkanov
Mordovian State University, Saransk, Russian Federation
V. A.
Kuznetsov
Mordovian State University, Saransk, Russian Federation
Constant day length and periodic (12/12) light accelerated the growth rate and increased the efficiency of food conversion of fry of Cyprinus carpio L., Carassius auratus gibelio (Bloch), Perccottus glenii Dybowski, Alburnus alburnus (L.), Leucaspius delineatus (Heck.), Poecilia reticulata Peters, while constant darkness caused the reverse effect. The last three species have shown more significant photoperiodic reaction than others. Acceleration of the growth was associated with improving of food conversion and increasing somatotropin secretion.
On the Role of the Planktonic Community in the Processes of Self-Purification of Novorossiysk Bay, the Black Sea
110-117
10.1615/HydrobJ.v41.i2.90
Zh. P.
Selifonova
Murmansk Marine Biological Institute, Kolsk Scientific Center Russian Academy of Sciences, Murmansk, Russia
Efficiency of environmental self-purification in pelagic communities of Novorossiysk Bay of the Black Sea is evaluated as evidenced by energy flows during the seasons. A key role of the microbial food webs in the process of organic matter decomposition in this heavily polluted bay is confirmed. The importance of the allochthonous bacterial biomass, arriving into the bay with drainage waters from the land, as an additional source of particulate food in summer is demonstrated. The energy flows in the pelagic ecosystem of the bay during the summer period are distributed as follows: the largest its part passes via the bacterioplankton link (75%) and via the microzooplankton, mainly planktonic Protozoa (23%). The share of net zooplankton is small (2%).