Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
42
2
2006
Changes in the Quantitative Indices of Development of Viable Zooplankton of Sevastopol Bay in 1998-1999 (Crimea, the Black Sea)
3-12
10.1615/HydrobJ.v42.i2.10
Ye. V.
Pavlova
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
Ye. B.
Mel'nikova
Institute of Biology of South Seas National Academy of Sciences of Ukraine, Sevastopol', Ukraine
In 1999 the numbers and biomass of zooplankton of Sevastopol Bay were higher than those registered in 1998, which was conditioned by the difference in the oceanographic conditions. The viability of zooplankton (in terms of the number of dead organisms) should be taken into account along with the quantitative indices of its development. Zooplankton viability is a reliable index of the ecological state of marine waters.
Communities of Invertebrates of the Cooling Pond of the Chernobyl Nuclear Power Station. Report 2. Communities of Zooperiphyton, Their Composition and Structure
13-30
10.1615/HydrobJ.v42.i2.20
A. A.
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
A. A.
Sylaieva
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, 04210, Ukraine
The peculiarities of the structure of zooperiphyton communities of the cooling pond of the Chernobyl NPS were studied after its removal from service. Zooperiphyton communities occurring on solid inorganic substrata were characterized by a predominance of Dreissena bugensis Andr. Until the early 1990s they were characterized by a predominance of D. polymorpha Pall. On the whole, the structure of zooperiphyton communities was less complicated than that registered in the cooling pond prior to the accident.
Assessment of the Degree of Anthropic Eutrophication of Floodplain Lakes in terms of Phytoplankton
31-40
10.1615/HydrobJ.v42.i2.30
N. V.
Denisova
Birsk State Pedagogic Institute, Bashkirian State University, Ufa, Bashkortostan, Russian Federation
F. B.
Shkundina
Bashkiria State University Ufa, Russian Federation
The species composition of phytoplankton, the quantitative indices of its development, and also its distribution, were studied in different floodplain lakes of the Belaya river (Bashkortostan, Russian Federation). A total of 302 species and varieties of algae was found in phytoplankton. Chlorophyta and Bacillariophyta were highly diverse in their species composition. Based on the indices of eutrophication, the studied lakes were assigned to mesotrophic and eutrophic water bodies. Based on the saprobic indices, they were assigned to β-mesosaprobic water bodies.
Peculiarities of Phytoplankton Development in the Head and Tail Waters of Lowland Reservoirs (on the Example of the Teterev River)
41-49
10.1615/HydrobJ.v42.i2.40
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
L. A.
Sirenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Pr. Geroyev Stalingrada, 04210 Kiev, Ukraine
Yu. S.
Kuzminchuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The structure of phytoplankton, including its species and infraspecific diversity, numbers, and biomass, chlorophyll α content, and also physical and chemical indices of water, were studied both in the head and in the tail waters of the reservoirs of the Teterev river.
The Current State and Reproduction of Sturgeon Fish Population in the Sea of Azov Basin: A Review
50-68
10.1615/HydrobJ.v42.i2.50
V. M.
Sabodash
Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine
K. V.
Demyanenko
Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The state of sturgeon fish populations in the basin of the Sea of Azov for more than last 35 years is presented. The causes of decreased catches and actions undertaken to restore productivity of sturgeons breeding under conditions of changed water bodies are analyzed.
Peculiarities of Natural Reproduction of Fishes and Food Resources in an Unregulated Section of the Volga River
69-78
10.1615/HydrobJ.v42.i2.60
M. P.
Boytsov
The Upper Volga Branch of the State Research Institute of Lacustrine Fish Industry, Konakovo, Russia
S. V.
Sentihcheva
The Upper Volga Branch of the State Research Institute of Lacustrine Fish Industry, Konakovo, Russia
It has been shown that under conditions of high flowage, prevalence of sandy-pebble bottom grounds and weak overgrowth, which are peculiar of unregulated sections of the Volga River, the areas for spawning of phytophilous fishes are rather limited. Especially low was natural reproduction of bream. Efficiency of fish spawning depended on hydro-meteorological conditions of a year. It is emphasized that a level of development of planktonic and benthic fauna under conditions existed in the river is extremely low.
Effect of Different Concentrations of Cadmium Bromide on Physicochemical Properties of Hemolymph in Planorbarius purpura (Mollusca: Pulmonata: Bulinidae)
79-86
10.1615/HydrobJ.v42.i2.70
A. P.
Stadnichenko
Ivan Franko Zhytomyr University Zhytomyr, Ukraine
G. Ye.
Kyrychuk
Zhytomyr Ivan Franko State University Zhytomyr, Ukraine
L. D.
Ivanenko
Zhitomir State University, Zhitomir, Ukraine
A. M.
Kirichuk
Zhitomir State University, Zhitomir, Ukraine
Effects of the trematode invasion (infection) and solution of cadmium bromide (1, 5, and 10 mg/dm3); on physicochemical properties of hemolymph (volume, hemoglobin availability per unit of the total body mass and soft body mass, and active reaction) of Planorbarius purpura were studied. At 5 mg/dm3 of the toxicant in uninfected individuals and at 1 mg/dm3 in infected by trematodes individuals, a statistically significant increase of hemolymph volume was registered (there was no such increase at 10 mg/dm3). At all toxic mediums used in the experiments, an active reaction of hemolymph has shifted to the acidic side. In a solution with 1 mg/dm3 of toxicant the hemoglobin provision per unit of the total body mass and soft body mass is statistically increased in both invasion-free individuals and individuals infected by trematodes.
Biomonitoring of Some Heavy Metals in the Dubossary (Dubasari) Reservoir
87-101
10.1615/HydrobJ.v42.i2.80
G. G.
Muntyanu
Institute of Chemistry of the Academy of Sciences of Republic of Moldova
V. I.
Muntyanu
Institute of Chemistry of the Academy of Sciences of Republic of Moldova
Contents of Hg (II), Cu (II), Pb (II), and Cd (II) in water, bottom sediments and freshwater vascular plants along the Dubossary Reservoir were under coupled analysis. The maximum content of metals in these aquatic ecosystem components has been registered in the area of the industrial complex, comprising two cement works and one metallurgical work. Rooted hydatophytes (Myriophyllum verticillatum L., Potamogeton perfoliatus L., Potamogeton pectinatus L., Elodea canadensis Michx.) absorb larger quantities of heavy metals than helophytes do (Typha latifolia L., Phragmites australis, Butomus umbellatus L.). Potamogeton perfoliatus shows the best qualities as a biomonitoring organism. The contents of heavy metals in its biomass correlated positively with both concentration of their dissolved forms (r = 0.997−0.651) and forms bound by bottom sediment (r = 0.972−0.545).
Dynamics of the Chlorophyll α Content in Phytoplankton of the Kuybyshev Reservoir
102-109
10.1615/HydrobJ.v42.i2.90
V. N.
Pautova
Institute of Volga Basin Ecology of the Russian Academy of Sciences Tol'yatti, Russia
V. I.
Nomokonova
Institute of Biology of Inland Waters, Russian Academy of Sciences, Borok; and Institute of Ecology of the Volga Basin, Russian Academy of Sciences, Tolyatti, Russia
Regularities of seasonal dynamics of the chlorophyll α content in the Kuybyshev Reservoir and its phytoplankton inter-annual fluctuations are considered. The examples of chlorophyll α distribution over the reservoir in different biological seasons are given. The influence of accidental wastewater discharges from the large cities on the chlorophyll α content is shown.
Structuredness of Aquatic Organisms' Communities as a Basis of Their Existence (a Case Study of Shallow-Water Near-Bottom Zooplankton)
110-123
10.1615/HydrobJ.v42.i2.100
O. V.
Pashkova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A scheme is proposed for studying the structuredness of communities of aquatic organisms in space and time by means of a complex of biocenological and biometrical parameters. This scheme was evaluated involving actual data on near-bottom zooplankton communities of shallows in the Kakhovka Reservoir.