Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
41
1
2005
Species and Ecological Diversity of Polychaeta Taxocen in the Northwestern Part of the Black
3-8
10.1615/HydrobJ.v41.i1.10
G. V.
Losovskaya
Odessa Branch of the Institute of Biology of the Southern Seas National Academy of Sciences of Ukraine, Odessa, Ukraine
The number of species of Polychaeta and their diversity were studied in various biotopes of the northwestern part of the Black Sea. The highest value of the Simpson index of diversity was registered in the biotope of shell rock, whereas its lowest value was observed in the biotope of silt. In 1998 as compared to 1977 the indices of diversity remained almost unchanged, whereas the ecological diversity of Polychaeta (relationship between their vital forms) essentially changed.
Communities of Periphytic Algae of the Cooling Pond of the Chernobyl NPS
9-25
10.1615/HydrobJ.v41.i1.20
T. F.
Shevchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The ecological and floristic approach to the classification of vegetation by the method of Braun-Blanquet was used in studies of communities of periphytic algae occurring in the cooling pond of the Chernobyl NPS. A total of 72 communities of periphytic algae was distinguished in the cooling pond of the Chernobyl NPS during the period of investigations (1983, 1994-1999, 2001). On the whole, 3 groups and 2 subgroups of algal communities were distinguished. They reflected ecological conditions of the occurrence of algae, in particular the influence of the temperature regime of the cooling pond.
Peculiarities of the Distribution of Plant Pigments in Bottom Sediments of the Cheboksary Reservoir
26-33
10.1615/HydrobJ.v41.i1.30
L. Ye.
Sigareva
Institute of Biology of Inland Waters Russian Academy of Sciences, Borok, Russia
N. A.
Timofeyeva
Institute of Biology of Inland Waters Russian Academy of Sciences, Borok, Russia
V. V.
Zakonnov
Institute of Biology of Inland Waters Russian Academy of Sciences, Borok, Russia
The content and distribution of plant pigments in bottom sediments of the Cheboksary reservoir were analyzed. It has been found that a high primary production is responsible for accumulation of plant pigments, whereas intensive water exchange adversely affects their accumulation.
Sanitary and Hydrobiological State of Lake Zakitnya (Zaporozhye)
34-39
10.1615/HydrobJ.v41.i1.40
K. O.
Dombrovskiy
Zaporozhye National University Zaporozhye, Ukraine
T. A.
Kharchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Characteristics of the ecological state of the urban Lake Zakitnya located within the territory of the town of Zaporozhye are given on the basis of the study of the biodiversity and structural indices of macrozoobenthos, and also on the basis of bioindication.
Metabolic Adaptation of Yearlings and Two-Year Old Carps to the Wintering Conditions
40-46
10.1615/HydrobJ.v41.i1.50
A. O.
Zhydenko
Chernigiv State Pedagogical University, Chernigiv, Ukraine
V. V.
Kryvopysha
Chernigov State Pedagogical University, Chernigov, Ukraine
Seasonal dynamics (October, February, and April) of ketone bodies (acetacetate, acetone, and (β-hydroxybutyrate) in muscles, liver, and brain of yearlings and two-year old carps were under study. It was assayed the level of β-hydroxybutyrate activity in the same tissues of yearlings. The synthesis of ketone bodies in carp yearlings as a response to low surrounding seasonal temperature and starvation is an example of compensatory adaptation. In particular, the brain receives, at lacking exogenous nutrition, an additional energy source.
Dynamics of Lipid Composition of Fish Brain at Intoxication by Heavy Metal Ions
47-53
10.1615/HydrobJ.v41.i1.60
G. B.
Maniora
State Pedagogical University of Ternopil, Ternopil (Ternopol), Ukraine
The differences in correlations of lipid components of carp (Cyprinus carpio) brain under the influence of heavy metals were found. Among those were increased amounts of total lipids and relative content of phospholipids, free fatty acids, free cholesterol, phosphatidyl choline, and phosphatidyl ethanolamine under the intoxication of Pb2+, Cu22+, and Zn2+. Their relative contents decreased under the influence of Mn2+.
Effect of the Organic-Mineral Fertilizer Mochevin-K on Parameters of Vital Activity of Ceriodaphnia affinis Lilljeborg
54-62
10.1615/HydrobJ.v41.i1.70
N. A.
Platonov
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
Vital, lethal, and sublethal concentrations of two ammonium-containing fertilizers, mochevin-K1 and mochevin-K2, were determined in experiments with Ceriodaphnia affinis. Concentrations of 1 g/L of the first and 0.1 g/L of the second compound were lethal at chronic exposure, while concentrations 0.001 g/L and 0.01 g/L, respectively, produced no toxic effect.
Effect of Oil Products on Gas Exchange in Carp Yearlings
63-68
10.1615/HydrobJ.v41.i1.80
V. F.
Kovalenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
The data on shifts in gas exchange and some changes in nitrogen metabolism occurred in carp yearlings in the environment polluted with oil and oil products (1; 2; 3 and 4 ml/L of kerosene) are demonstrated. The possible mechanisms of the action of oil products upon fish organism are discussed.
Effect of Alkaloids of Spatterdock, Nuphar lutea (L.) Smith, on Spawn and Spermatozoa of Carp and Grass Carp
69-75
10.1615/HydrobJ.v41.i1.90
O. V.
Balanda
Institute of Hydrobiology National Academy of Sciences of Ukraine, Kiev, Ukraine
O. G.
Zin'kovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
A. S.
Potrokhov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
Experiments demonstrated the influence of various forms of alkaloids of N. lutea (water-insoluble free and water soluble hydrochloride, as well as aqueous extracts of comminuted rhizomes) on viability of common carp and grass carp embryos. Spermicidal and fungicidal activities of all these substances have been proven. Soluble alkaloids are highly toxic.
Studying of the Equivalence of Radioactive and Chemical Contamination Effects of a Natural Population of Aquatic Organisms: a Methodology
76-88
10.1615/HydrobJ.v41.i1.100
V. G.
Tsytsugina
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
G. G.
Polikarpov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev; and Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
Approaches to the identification and equi-dosimetric assessment of radiation, chemical and combined effects on natural populations of aquatic organisms are proposed. These approaches are based on the generalization of author's previous experimental data concerning separate and combined effects of ionizing radiation and chemical mutagens (heavy metals and organochlorine compounds) on crustacean and fish embryos, as well as on results of field investigations carried out before and after the Chernobyl accident. It is proposed to use the following criteria for the identification and equi-dosimetric evaluation of damaging factors: a comparison of cytogenetic effects in mutagen equivalent doses, distribution patterns of chromosome aberrations in cells, and a mean number of aberrations per an aberrant cell.
Dynamics of the Concentration Factors of 137Cs in Fishes of the Cooling Pond of the Chernobyl NPS
89-98
10.1615/HydrobJ.v41.i1.110
It has been found that the content of 137Cs in various species of fishes is conditioned by the peculiarities of a species, and also by the spectrum and type of its nutrition. Various species of fishes essentially differ in the pattern of dynamics of the concentration factor of 137Cs . The lowest concentration factors of 137Cs are registered in fishes of low trophic levels.
Cenological Analysis of Microphytobenthos Using the Method of Braun-Blanquet
99-112
10.1615/HydrobJ.v41.i1.120
G. V.
Melenchuk
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
Cenological analysis of microphytobenthos was carried out by the ecological and floristic method of Braun-Blanquet. The efficiency of this method, and also the procedure of its application, is discussed.
Physiological Aspects of Effects of Urethane Anesthesia on the Organism of Marine Fishes
113-126
10.1615/HydrobJ.v41.i1.130
It was shown that exposure of fish (12 marine species under study) to urethane in concentration of 1.5-5.2 g per liter of the ambient sea water caused development of three successive states. These states (stages of anesthesia) are designated by the author as quiet, excitement and deep anesthesia. The quiet period was observed during 1.5-3.0 hours. The fright reaction was absent and the fish physiological state was stable. The excitement period coincided with the loss of coordination and intensification of metabolic processes. At the period of deep anesthesia, the loss of mobility in fish was registered in parallel with progressive decrease of respiration and heart rate and development of tissue hypoxia. The dependence of effective urethane concentrations on water temperature, salinity, O2 content, and motor activity of fish was under study as well.