Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
39
1
2003
Contribution of Phytoplankton of the Euphotic and Disphotic Zones to the Primary Production of a Fresh Water Body
12
10.1615/HydrobJ.v39.i1.10
V. I.
Kolmakov
Institute of Biophysics, Siberian Department of the Russian Academy of Sciences, 36, Akademgorodok, 660036 Krasnoyarsk, Russia
N. A.
Gayevskiy
Krasnoyarsk State University, Institute of Biophysics, Siberian Department of the Russian Academy of Sciences, Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia
O. P.
Dubovskaya
Krasnoyarsk State University, Institute of Biophysics, Siberian Department of the Russian Academy of Sciences, Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia
Ye. A.
Ivanova
Krasnoyarsk State Agrarian University, Chair of Botany and Physiology of Plants, 88, Pr. Mira, 660049 Krasnoyarsk, Russia
Investigations were carried out during two vegetation seasons in a shallow forest pond characterized by a low transparency of water. The structural (the species composition and biomass) and physiological (relationship between chlorophyll a content and algal biomass, variable fluorescence, gross and net primary production) characteristics of phytoplankton of the euphotic and disphotic zones were studied. Phytoplankton of the disphotic zone represented by a stable community of diatoms in terms of its physiological characteristics was assigned to shade-tolerant phytoplankton. Its contribution to the total primary production may account for 25%. The method of determining primary production in the disphotic zone in terms of variable fluorescence yields higher results as compared to the bottle method. It has been found that the main coefficient in the equation of relationship between fluorescence and productional indices depends on the intensity of light.
Macrozoobenthos as an Indicator in Monitoring of the Environmental Quality of the Black Sea
13
10.1615/HydrobJ.v39.i1.20
G. V.
Losovskaya
Odessa Branch of the Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine, Odessa, Ukraine
Based on long-term observations in the northwestern part of the Black Sea, the work discusses the suitability of changes in performances of macrozoobenthonic communities as the indices of well-being or deterioration of the marine environment. In particular, there is considered the value in respect of this of such criteria as: (1) indicator species; (2) indicator groupings; (3) quantitative and structural changes in Mytilus galoprovincialis biocenosis, and (4) quantitative and taxonomic modifications among representatives of Polychaeta.
New and Modified Methods for Studying Microsporidia of Aquatic Animals (A Review)
11
10.1615/HydrobJ.v39.i1.30
N. A.
Ovcharenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The article presents a review of the classic and modern methods of investigations of Microsporidia, with the author's comments based on his own experience.
Spectral and Space-Frequency Information Characteristics of Decoding of Aquatic Landscapes in Aerospace Images
9
10.1615/HydrobJ.v39.i1.40
V. G.
Yakimchuk
Earth Aerospace Research Centre, Institute of Geological Sciences National Academy of Sciences of Ukraine, Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
K. Yu.
Sukhanov
Earth Aerospace Research Centre, Institute of Geological Sciences National Academy of Sciences of Ukraine, Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
A. D.
Fedorovskiy
Earth Aerospace Research Centre, Institute of Geological Sciences National Academy of Sciences of Ukraine, Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
L. A.
Sirenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Pr. Geroyev Stalingrada, 04210 Kiev, Ukraine
Results of studies of optical spectral and space-frequency information parameters of aquatic vegetation and fragments of aquatic landscapes of the Kiev Reservoir (the Dnieper River, Ukraine) for remote sensing are considered. For determination of the texture and structure of water bodies, the program for calculation of space-frequency spectra has been developed; based on that, the decoding of space images and assessment of the environmental state of water bodies are carried out during the research and retrospectively.
Determination of Impacts of Nuclear and Thermal Power Plants on Hydroecosystems, Using Expert Assessment
11
10.1615/HydrobJ.v39.i1.50
B.
Zdanowski
Inland Fisheries Institute, Olsztyn, Poland
The problem of impacts of nuclear and thermal power plants on hydroecosystems was studied. Expert assessment methods for evaluating impact on hydroecosystems of various factors related to the functioning of power plants were analyzed. The set of criteria was proposed for expert assessment, which includes four subdivisions: (1) impact on hydrochemical characteristics, (2) impact on hydrodynamic characteristics, (3) impact on hydrothermal conditions, and (4) total engineering impact. The analysis of some examples for cooling reservoirs of nuclear and thermal power plants was described.
Distribution of Unicellular Algae at the Surface of the Pelagic Zone of the Sea of Azov
6
10.1615/HydrobJ.v39.i1.60
N. M.
Lyalyuk
Donetsk State University Donetsk, Ukraine
G. P.
Lipnitskaya
Donetsk State University Donetsk, Ukraine
The species composition and quantitative indices of development of neuston and plankton were studied in the coastal zone of the Sea of Azov. A total of 20 species of algae belonging to three divisions was identified. In this case, 17 species were found in neuston, whereas 13 species were registered in plankton. The numbers of neuston algae were 2.9 times higher than those of plankton algae, whereas their biomass was 2.3 times higher than that of plankton algae. In neuston, Cyanophyta dominated in terms of their numbers and biomass. Chlorophyta were most diverse in their species composition. In plankton, the highest numbers and biomass were characteristic of green algae. They were represented by the largest number of species. Algae found both in plankton and in neuston may be considered as plankton components of the neuston biocenosis.
A Predominance of Lyngbya Contorta Lemm. and the Photosynthetic Activity of Phytoplankton in Brackishwater Meromictic Lake Shira
11
10.1615/HydrobJ.v39.i1.70
T. A.
Zotina
Institute of Computerized Simulation Siberian, Department of the Russian Academy of Sciences, Institute of Biophysics Siberian, Department of the Russian Academy of Sciences, Krasnoyarsk, Russia
V. V.
Zavoruyev
Institute of Computerized Simulation Siberian, Department of the Russian Academy of Sciences, Institute of Biophysics Siberian, Department of the Russian Academy of Sciences Krasnoyarsk, Russia
It has been found that in early spring and summer Lyngbya contorta Lemm. (Cyanophyta) dominates in phytoplankton of the pelagic zone of meromictic brackishwater Lake Shira. In 1998, its maximum contribution to the total biomass of phytoplankton was 80%. In 1996–1999, the average contribution of L. contorta to the total biomass accounted for 66%. The vertical distribution of phytoplankton was characterized by a stable stratification. Physical and chemical parameters of the environment, in which phytoplankton with a predominance of L. contorta possessed its photosynthetic activity were investigated. At the intensity of light of 0.2Ч10–3 W/m2 PhAR, and also at the concentration of hydrogen sulfide of 30 mg/L, L. contorta showed its photosynthetic activity. It was assumed that mass development of L. contorta in Lake Shira was conditioned by the increase in the intensity of the processes of biochemical transformation of matter in the near-bottom layer of water characterized by a high content of hydrogen sulfide occurring under the influence of anthropic load.
Functioning of Communities of Submerged Plants within the River Section of the Kanev Reservoir
11
10.1615/HydrobJ.v39.i1.80
Ye. N.
Tsaplina
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev
Phytocenoses of submerged plants were studied within the river section of the Kanev reservoir. The main factors influencing the development and functioning of communities of submerged plants in the upper reaches of the reservoir were revealed.
Composition of Free Fatty Acids of the Surface Film of Water in Evaluating the Process of Self-purification of Water Bodies Contaminated by Phenol
16
10.1615/HydrobJ.v39.i1.90
N. N.
Sushchik
Institute of Biophysics Siberian Department of the Russian Academy of Sciences, Krasnoyarsk State Agrarian University, Krasnoyarsk State University, Krasnoyarsk, Russia
M. I.
Gladyshev
Institute of Biophysics Siberian Department of the Russian Academy of Sciences, Krasnoyarsk State Agrarian University, Krasnoyarsk State University, Krasnoyarsk, Russia
O. P.
Dubovskaya
Krasnoyarsk State University, Institute of Biophysics, Siberian Department of the Russian Academy of Sciences, Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia
Ye. A.
Ivanova
Krasnoyarsk State Agrarian University, Chair of Botany and Physiology of Plants, 88, Pr. Mira, 660049 Krasnoyarsk, Russia
V. I.
Kolmakov
Institute of Biophysics, Siberian Department of the Russian Academy of Sciences, 36, Akademgorodok, 660036 Krasnoyarsk, Russia
I. V.
Gribovskaya
Institute of Biophysics Siberian Department of the Russian Academy of Sciences, Krasnoyarsk State Agrarian University, Krasnoyarsk State University, Krasnoyarsk, Russia
Dynamics of the main hydrobiological indices and integral characteristics, including kinetics of the process of self-purification of the fish pond from phenol, and also the composition of free fatty acids of the surface film of water of this water body, were studied during the vegetation season in 1997. Three functional types of the aquatic ecosystem of the pond alternating during the vegetation season were distinguished by the standard methods of statistics. Each functional type was characterized by the specific rate of self-purification, and also by the specific composition of free fatty acids. It has been found that the composition of free fatty acids of the surface film of water belongs to integral structural characteristics giving an indication of the process of self-purification depending on seasonal dynamics of phytoplankton, and also on the hydrochemical regime of a water body.
Peculiarities of Successions in Biocenoses of Fouling in the Sea of Azov
10
10.1615/HydrobJ.v39.i1.100
Ye. M.
Partaly
“Iliana” State Enterprise Mariupol, Ukraine
A total of 223 species of hydrobionts, including 161 species of algae and 62 species of invertebrates, was found in communities of fouling in the Sea of Azov. Seasonal dynamics of their development were as follows: in winter these communities were represented by bacteria and algae, in spring algae and bacteria were accompanied by Hydrozoa, Crustacea, Protozoa, Rotatoria, and Mollusca, whereas in summer the above-mentioned organisms were accompanied by Bryozoa and Kamptozoa. The development of periphytic organisms began at 14°C, whereas at 9°C it was over. Dominant species included Mytilus galloprovincialis Lamark and Balanus improvisus Darwin.
Ecological-Physiological Performance of the State of Azov Anchovy at the Pre-migratory and Migratory Periods
11
10.1615/HydrobJ.v39.i1.110
V. Ya.
Shchepkin
Institute of Biology of the Southern Seas National Academy of Science of Ukraine Sevastopol, Southern Fishery and Oceanography Research Institute, Kerch, Ukraine
G. S.
Minyuk
A.O. Kovalevsky Institute of Biology of Southern Seas, NAS of Ukraine, 2, Nakhimov Pr., Sevastopol 99011, Crimea
A. K
Chashchin
Institute of Biology of the Southern Seas National Academy of Science of Ukraine Sevastopol, Southern Fishery and Oceanography Research Institute, Kerch, Ukraine
I. V.
Drobetskaya
Institute of Biology of the Southern Seas National Academy of Science of Ukraine Sevastopol, Southern Fishery and Oceanography Research Institute, Kerch, Ukraine
O. Yu.
Vyalova
Institute of Biology of the Southern Seas National Academy of Science of Ukraine Sevastopol, Southern Fishery and Oceanography Research Institute, Kerch, Ukraine
It is concluded from the results of three-years studies that the total lipid content (TLC) and the lipid composition reflect the general physiological state (GPS) of Azov anchovy at the period of its fattening that, in is turn, is depending on the food provision. Determination of TLC is proposed as a field express-method for the control of GPS in this fish species under its natural conditions.
Effects of Hypoxia and Alloxan on the Contents of Carbohydrates in Tissues of Blunt-Snouted Mullet (Mullus barbatus ponticus Essipov) and Sea Scorpion (Scorpaena porcus L.)
9
10.1615/HydrobJ.v39.i1.120
L. P.
Astakhova
Karadag Nature Reserve National Academy of Science of Ukraine, Kurortnoye settlement, Crimea, Ukraine
V. I.
Lushchak
Karadag Nature Reserve National Academy of Science of Ukraine, Kurortnoye settlement, Crimea, Ukraine
It was found that contents of glycogen and glucose changed insignificantly in the tissues of sea scorpion and mullet kept under hypoxic conditions (30% level O2 saturation of water) for 90 min. In sea scorpion, hypoxia combined with starvation during 12 days led to quite reliable changes in the contents of those carbohydrates. Alloxan (12.5 mg/kg) effected in hyperglycemia in blunt-snouted mullet, and it had practically no action on the same parameters of carbohydrate metabolism in sea scorpion.