Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
41
3
2005
Structure and Succession of Phytoplankton in Urban Water Bodies of St.-Petersburg
3-12
10.1615/HydrobJ.v41.i3.10
I. S.
Trifonova
Institute of Limnology RAS,
9 Sevastyanova Str., St.-Petersburg 196185, Russia
O. A.
Pavlova
Institute of Limnology, Russian Academy of Sciences, St.-Petersburg, Russia
The species composition and biomass of phytoplankton of three Suzdal lakes, and also of the Sestroretskiy Razliv reservoir, located within the territory of St.-Petersburg were investigated. Seasonal and long-term succession of algae in response to eutrophication was revealed.
Influence of the Resting Period on the Rhythm of Hatching of Polyphemus pediculus Young (Crustacea: Branchiopoda, Onychopoda) from Resting Eggs
13-27
10.1615/HydrobJ.v41.i3.20
L. G.
Butorina
Institute of Biology of Inland Waters of Russian Academy of Sciences, Borok, Yaroslavl' Region
Development of resting eggs of Polyphemus pediculus is asynchronous. The hatching of young is wave-form in character; it occurs by portions in accordance with the native diurnal, seasonal, perennial rhythms, as well as the environmental conditions survived by a population during the resting period. The species cyclicity is genetically determined. P. pediculus is a monocyclic species under any conditions. Local P. pediculus populations are genetically heterogeneous and formed by generations having different duration of the life cycle.
Influence of Phytoplankton on the Formation of the Oxygen Regime of the River Ecosystem
28-37
10.1615/HydrobJ.v41.i3.30
V. I.
Shcherbak
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12 Prosp. Geroev Stalingrada, Kyiv 04210, Ukraine
Yu. S.
Kuzminchuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The structural characteristics of phytoplankton, including its species and taxonomic diversity, biomass, and the complex of dominant species, and seasonal dynamics of the content of oxygen dissolved in water in different sections of the Teterev river were investigated. The samples of phytoplankton were taken at the following stations: the head water of the Zhitomir reservoir, the tail water of the Zhitomir reservoir, the river section of the Teterev river located downstream of the town of Zhitomir. Relationship was established between the biomass of plankton algae and the content of oxygen dissolved in water.
Relationships of Biomass and Species Diversity of Algae in a Planktonic Community
38-44
10.1615/HydrobJ.v41.i3.40
V. I.
Yermolayev
Central Siberian Botanical Gardens, Siberian Branch of the Russian Academia of Sciences, Novosibirsk, Russia
Biomass of the whole planktonic algal association and their single populations in Lake Sartlan (Western Siberia) were under study. Species diversity of phytoplankton was evaluated by a formula derived from principles of the theory of information. Reliable negative correlation between biomass and biodiversity of phytoplankton was revealed. The character of correlation between these values is demonstrated by corresponding analytical formulae and diagram.
Application of Cluster Analysis to Phytomonitoring of Aquatic Ecosystems in Podil'ski Tovtry National Nature Park
45-53
10.1615/HydrobJ.v41.i3.50
N. N.
Musienko
National Taras Shevchenko University, Kiev, Ukraine
I. V.
Fedorchuk
National Taras Shevchenko University, Kiev, Ukraine
Aquatic ecosystems of Podil’ski Tovtry National Nature Park were monitored by studying their macrophytes in 2000-2003. The method of cluster analysis was used in combination with hydrochemical analysis of waters. As a result of comparative analyzing of macrophytes, a degree of pollution of local water bodies was established.
Allelopathic Influence of Higher Aquatic Plants on the Functional Activity of Plankton Algae
54-66
10.1615/HydrobJ.v41.i3.60
It has been found that the dissolved substances of phenol origin are accumulated in shallow water zones of reservoirs occupied by the thickets of higher aquatic plants. Their high concentrations are capable of inhibiting the development of Cyanobacteria. In this case, the functional activity of plankton algae belonging to other taxonomic groups is unaffected by these substances. The decrease in the content of these substances in deep water sections of reservoirs is responsible for intensive development of waterbloom-forming species of Cyanobacteria, and also for changes in the structure of communities of plankton algae.
Effect of a Catione-Active Surfactant on the Level of Toxicity of Chromium (VI) in Aquatic Organisms
67-74
10.1615/HydrobJ.v41.i3.70
I. B.
Zubenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
T. V.
Parshikova
T. G. Shevchenko Kiev National University, 60, Vladimirskaya St., 01017 Kiev, Ukraine
It has been shown in aquarium experiments that catamine, a cationic surfactant, strengthens the toxic action of chromium (VI) on the chlorophyll a accumulation (which served as an indicator of algal biomass) and inhibits substantially the photosynthesis intensity in Chlorella vulgaris Beijer.
90Sr, 137Cs, 238Pu, 239+240Pu, and 241Am in the Components of Aquatic Ecosystems of the Krasnenskaya Floodplain of the Pripyat River
75-89
10.1615/HydrobJ.v41.i3.80
D. I.
Gudkov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
V. V.
Derevets
Institute of Hydrobiology; Institute of Zoology; Institute of Ecology; Institute of Botany National Academy of Sciences of Ukraine; "Chernobyl Radioecological Center", Kiev, Ukraine
L. M.
Zub
Institute of Evolution Ecology National Academy of Sciences of Ukraine Kiev, Ukraine
S. I.
Kireev
"Ecocenter" State Specialized Representative Office of the State Agency of Ukraine with
Management of the Exclusion Zone
Chornobyl, Ukraine
M. I.
Kuz'menko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A. V.
Kulachinskiy
Institute of Hydrobiology; Institute of Zoology; Institute of Ecology; Institute of Botany National Academy of Sciences of Ukraine; "Chernobyl Radioecological Center", Kiev, Ukraine
V. P.
Mashina
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A. B.
Nazarov
"Chernobyl Radioecological Center", State Specialized Scientific-Manufacturing Enterprise, Ministry of Extraordinary Situations of Ukraine, Chernobyl, Ukraine
A. L.
Savitskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine, Institute of Ecology, National Ecological Center of Ukraine, Institute of Botany National Academy of Sciences of Ukraine Kiev, Ukraine
The distribution of 90Sr, 137Cs, 238Pu, 239+240Pu, and 241Am in the main components of the lakes of the Krasnenskaya floodplain of the Pripyat river, including Lake Glubokoye and Lake Dalekoye-1 located within the exclusion zone of the Chernobyl NPS, was investigated in 1998-2003. Data on the content of radionuclides in the water, bottom sediments, seston, macrozoobenthos (including Bivalvia), Gastropoda, higher aquatic plants, and fishes are presented.
A Mathematical Model of Eutrophication of the near-Danube Lakes
90-102
10.1615/HydrobJ.v41.i3.90
Ye. D.
Gopchenko
Odessa State Ecological University, Odessa Branch of the Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Odessa, Ukraine
Yu. S.
Tuchkovenko
Odessa State Ecological University, Odessa Branch of the Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Odessa, Ukraine
The mathematical structure of the 0-dimensional model of eutrophication for lakes of the Lower Danube is presented. Calibration of chemical and biological parameters of the model is described. Results of verification and numerical simulations with the model are provided.
Structure of Populations of Planktonic Algae and Lake Trophicity: Possibility of Application of Ecological Indices in Continued Monitoring of Trophic Status
103-106
10.1615/HydrobJ.v41.i3.100
R. A.
Danilov
Department of Applied Science, Mid Sweden University, 87188 Harnosand, Sweden
The efficiency of various ecological indices (Margalef’s, Menhinick’s, Shannon’s, Simpson’s, Hurlbet’s, saprobic indices, as well as cluster analysis) based on phytoplankton communities were studied while assessing eutrophication processes in lakes. Only Menhinick’s index and cluster analysis proved to be effective in determination of the eutrophication level of lakes.
Distribution of Chironomid Larvae in Bottom Grounds of Rivers of the Timan Ridge Area (Komi Republic)
107-117
10.1615/HydrobJ.v41.i3.110
Ya. S.
Kuz'mina
Biology Institute, Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Komi Republic, Russia
Studies of chironomids (Diptera, Chironomidae) of four salmon rivers flowing through the Timan Ridge (Komi Republic, Russia) were conducted in 1992-1997. Representatives of the subfamily Orthocladiinae dominated in the species composition. Based on the analysis of distribution of Chironomidae in watercourses, three major complexes were segregated; these complexes differed in their faunistic composition, numbers, and larval biomass. Litho- and lithophytorheophilic chironomid complexes are the dominant ones in salmon rivers of the Timan Ridge.
Nitrogen Excretion Rate in the Sea Walnut Mnemiopsis leidyi Agassiz
118-126
10.1615/HydrobJ.v41.i3.120
G. I.
Abolmasova
Institute of Biology of Inland Waters Sevastopol
Nitrogen excretion rates were measured Mnemiopsis leidyi individuals varied in sizes. Measurements were made every month of the year on newly caught individuals and those that starved several days over a temperature range of 7 to 24.5°C. The excretion rate expressed by a power function of animal's dry weight was very sensitive to temperature (Q10 = 2.2-5.0). The O/N ratio and minimum food ration were calculated.