Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
43
4
2007
Long-Term Dynamics of Macrozoobenthos of the Kremenchug Reservoir
3-20
10.1615/HydrobJ.v43.i4.10
Yu. V.
Pligin
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
Material on the development of macrozoobenthos in the Kremenchug reservoir since its construction in 1961 is given in the present paper. During the period of investigations, the biomass of "soft" benthos accounted for 3.98−15.30 g/m2, whereas its biomass without mollusks with the mass of more than 1 g was 10.57−160.00 g/m2 . Within 45 years, the number of species of invertebrates of the Ponto-Caspian complex increased from 4 to 28 at the expense of their introduction or out-invasion. In this case, the number of species of invertebrates of the European-Siberian complex decreased. Long-term succession of the ecosystem of the Kremenchug reservoir was responsible for the formation of the composition of macrozoobenthos according to edaphic conditions.
Modern State of the Macrofauna of Invertebrates of the Ukrainian Part of the Lower Reaches of the Danube River
21-34
10.1615/HydrobJ.v43.i4.20
Ye. Ye.
Zorina-Sakharova
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
The biodiversity and structural organization of the macrofauna (benthos, periphyton, and zoophytos) of invertebrates of the Ukrainian part of the main riverbed of the Danube river, of the Kiliya branch, and of the Danube river delta were analyzed. The modern state of the macrofauna of invertebrates of the Ukrainian part of the lower reaches of the Danube river and the quality of their waters were assessed on the basis of biotic indices.
The Outbreak of the Three-Spined Stickleback Gasterosteus aculeatus in the Buffer Storage of the Dniester Hydro System and in the Middle Dniester
35-42
10.1615/HydrobJ.v43.i4.30
L. V.
Shevtsova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine; Kyiv University of Management and Business
N. I.
Goncharenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
Possible causes of the population outbreak of the three-spined stickleback Gasterosteus aculeatus aculeatus, form trachurus, in the Middle Dniester were studied. There have been determined the peculiarities of the natural reproduction, morphological and biological parameters of this fish spawned under the conditions of the buffer storage of the Dniester hydro power plant and in the river downstream from the dam.
Determination of the Value of Algal Food Consumption by Moina macrocopa and Brachionus calyciflorus under Conditions of their Cultivation
43-47
10.1615/HydrobJ.v43.i4.40
Results of the study of the process of nutrition of plankton invertebrates, including Moina macrocopa and Brachionus calyciflorus, by algal food are presented. It has been found that the rate of Chlorella vulgaris monoculture consumption by Moina macrocopa (Cladocera) and Brachionus calyciflorus (Rotatoria) increased with increasing the concentration of algae in the aquatic medium. The optimum food ration of zooplankton organisms under such conditions of their cultivation was determined. It has been found that the intensity of food consumption by Brachionus calyciflorus was higher than that by Moina macrocopa.
Allochthonous Bacteria in the Ecosystem "Marine Environment - Aquatic Organisms - Bottom Sediment". (A Review)
48-58
10.1615/HydrobJ.v43.i4.50
I. A.
Govorin
Odessa Branch of the Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Odessa
It is presented a review of main results of the studies on the autochthonous bacteria in the marine environment with special reference to the enteric pathogens and indicator microorganisms for the recent 25 years (1977−2002). The principal sources of the bacteriological pollution of the seas, some environmental factors affecting survival of enteric bacteria in seawater, the role of the bottom sediments in the microbial safety of the coastal areas, relations between the enteric bacteria and aquatic organisms are considered.
Enzymatic Activity of the Microflora Associated with the Digestive-Transport Surfaces of the Bream and Parasitizing its Intestine Caryophyllaeus laticeps (Cestoda, Caryophyllidea)
59-66
10.1615/HydrobJ.v43.i4.60
G. I.
Izvekova
Institute of Biology of Inland Waters, Russian Academy of Sciences, Borok, Russia
N. A.
Lapteva
Institute of Biology of Inland Waters Russian Academy of Sciences Borok, Russia
The presence of bacteria associated with the digestive-transport surfaces of the bream intestine and C. laticeps (Cestoda) tegument has been shown. This microflora possesses amylolytic and proteolytic activities. Apparently, the contribution of bacterial enzymes depends on the fish diet.
Dynamics of 137Cs Concentration Factor in Benthos-Phagous Fishes of Water Bodies Differing in the Degree of Their Radioactive Contamination
67-75
10.1615/HydrobJ.v43.i4.70
V. V.
Kanivets
Institute of Nuclear Research National Academy of Sciences of Ukraine, Kiev, Ukraine
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
A. A.
Zalisskiy
Institute of Nuclear Research National Academy of Sciences of Ukraine, Kiev; "Ekotsentr" State Specialized Scientific-Industrial Enterprise Chernobyl, Ukraine
Dynamics of 137Cs concentration factor in benthos-phagous fishes were studied in 1987-2003. Its values ranged from 190 to 3200. Various species of fishes differed in the dynamics of 137Cs concentration factor. The studied water bodies differed in the content of 137Cs by a factor of 10000. Valid relationship between the specific activity of 137Cs in the water and 137Cs concentration factor in benthos-phagous fishes was not established. Water bodies similar in their origin were closely similar in the concentration factor of 137Cs registered in their fishes.
Aluminum in Natural Waters: Content, Forms of Migration, Toxicity
76-95
10.1615/HydrobJ.v43.i4.80
A review of the data on the content and existence forms of aluminum in surface waters as well as bioavailability and toxicity of aluminum compounds. It is shown that aluminum concentration in natural waters varies widely and substantially depends on the solubility of minerals containing aluminum and the influence of chemical composition and pH values of aquatic environment on the solubility. The hydrolysis and complexation processes play the major role in fate of aluminum in natural waters.
Experience of the Use of the Color Trap for the Night Catch of Zooplankton
96-102
10.1615/HydrobJ.v43.i4.90
L. P.
Braginskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
A model of the color trap for the night catch of zooplankton in small water bodies (ponds) based on the publication of F.E. Smith and E.R. Baylor [14] was proposed and tested. These authors studied the response of plankton Crustacea to the influence of red and blue light. Mainly representatives of the family Chydoridae were found in the color trap. In this case, representatives of the families Daphniidae and Bosminidae dominating in the net plankton of the studied water body by day time were not registered in the color trap, as well as Copepoda.
The put forward method can be used for specifying the biodiversity of zooplankton.