Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
47
1
2011
Spatial Distribution of Chironomids (Diptera, Chironomidae) in Coastal Zone of South Baikal
3-14
10.1615/HydrobJ.v47.i1.10
L. S.
Kravtsova
Limnological Institute, Siberian branch of the Russian Academy of Sciences, Irkutsk, Russia
Chironomidae
taxocenosis
spatial distribution
Baikal
Species composition and structure of taxocenosis of Chironomidae larvae have been studied in the coastal zone of the west edge of south basin of Baikal. 18 taxa of Chironomid larvae of three sub-families were registered: Diamesinae (1), Orthocladiinae (10), Chironominae (7). Using method of principal components it was stated that the main factors to determine peculiarities of their spatial distribution were bottom currents, depth and composition of bottom sediments.
Epibiotic Communities of Dreissena polymorpha Pall. on the Shells of Unionidae
15-28
10.1615/HydrobJ.v47.i1.20
A. A.
Sylaieva
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, 04210, Ukraine
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
I. A.
Morozovskaya
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
mollusks
Dreissena polymorpha
Unionidae
consortium
cooling pond
The specimens of Unionidae with epibiotic druses of Dreissena polymorpha were investigated in the cooling pond of the Khmelnitskiy Nuclear Power Station. The following characteristics were taken into account: the quantitative indices of the development of Unionidae and of Dreissena occurring on the living mollusks and on the shells of dead mollusks, dimensional structure of mollusks populations, and morphometric characteristics of the living Unionidae. An adverse effect of the settlements of Dreissena on Unionidae was not revealed.
Dynamics of the Higher Aquatic Vegetation of Water Bodies of the Danube Kiliya Delta under Anthropogenic Impact
29-40
10.1615/HydrobJ.v47.i1.30
T. N.
Dyachenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
higher aquatic vegetation
floristic and cenotic diversity
Kiliya Danube delta
water and alluvia flow
zoning of biosphere reserve
Changes of the floristic and cenotic composition of higher aquatic vegetation of the Danube outer delta bays have been considered with regard of drop of the Danube Kiliya arm flow and establishment the protected regime in the sea part of Kiliya delta. In order to preserve species and landscape diversity of bays and their status of fattening area for young fishes we propose to recover some types of traditional economic activities in the reserve zone or to reconsider the existent zones of the Danube Biosphere Reserve.
Spatial Distribution of Plankton Ciliata in Lake Baikal in Spring under Conditions of the Open Water
41-50
10.1615/HydrobJ.v47.i1.40
N. V.
Potapskaya
Limnological Institute, Siberian Department, Russian Academy of Sciences, Irkutsk, Russia
L. A.
Obolkina
Limnological Institute, Siberian Department, Russian Academy of Sciences, Irkutsk, Russia
V. V.
Blinov
Limnological Institute, Siberian Department, Russian Academy of Sciences, Irkutsk, Russia
Ciliata
plankton
spatial distribution
Lake Baikal
The composition of Ciliata, quantitative indices of their development, and their distribution over the area of water of Lake Baikal were investigated in 2007−2008 characterized by intensive development of phytoplankton. It has been found that during the period of homothermy in the pelagic zone of the lake, the distribution of Ciliata was non-uniform, which was conditioned by water stirring and by a high speed of water flow in the near-slope zone registered in springtime. At present the community of Ciliata is polydominant with a predominance of Oligotrichia. It is less abundant (500−7600 thousand cells/m3) than that registered in 1926−1928, when it was characterized by a predominance of Marituja pelagica (Hymenostomatia).
Feeding and Feeding Behavior of Invasive Fish Species in the Water Bodies of the West Polissya of Ukraine
51-60
10.1615/HydrobJ.v47.i1.50
V. K.
Bigun
State Ecological Inspection of the Volyn' oblast', Luts'k, Ukraine
S. A.
Afanasyev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
invasive species
Percottus glenii
Ictalurus nebulosus
feeding selectivity
feeding behavior
spawn
Complex study of the invasive ichthyofauna of the West Polissya of Ukraine has been carried out. Feeding spectra of the most abundant alien species − the Chinese sleeper Percottus glenii (Dybowski, 1877) and the brown bullhead Ictalurus nebulosus (Le Sueur, 1819) have been determined. Selectivity of feeding on the aboriginal fishes’ spawn (roach Rutilus rutilus, bream Abramis brama, perch Perca fluviatilis and pike Esox lucius) has been studied in the experiment. Spawn of the pike appeared to be the most attractive food object and spawn of the perch − the less attractive. Differences in the feeding behavior of two considered species have been revealed. Ictalurus nebulosus actively searched for spawn using whiskers, independently on its mobility. Percottus glenii consumed spawn when it was mobile, either under the effect of flow or at the stage of the movable embryo.
Results of the Bivalve Mollusks Farming on Artificial Reefs
61-71
10.1615/HydrobJ.v47.i1.60
D. D.
Gabayev
Institute of Marine Biology, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russia
marine bivalve mollusks
survival
growth rate
artificial reefs
As a result of the long-term use of artificial reefs (bottom collectors) it was found that substrate located in the water thickness is very attractive for marine bivalve mollusks at different development stage. Many mollusks do not realize their high reproductive potential because of lack of favorable substrate in the sea; availability of such substrate causes outburst of their reproduction.
Microphytobenthos as Bioindicator of the State of Aquatic Ecosystems
72-85
10.1615/HydrobJ.v47.i1.70
O. P.
Oksiyuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
O. A.
Davydov
Institute of Hydrobiology of NAS of Ukraine, 12 Geroev Stalingrada St., Kiev 04210, Ukraine
Yu. I.
Karpezo
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
microphytobenthos
synbioindication
state of aquatic ecosystems
Microphytobenthos on the whole can be used as synbioindicator provided that the unlikely directed factors essentially differ in their intensity. Ecological and morphological groups of benthic algae sensitive to the specified factors of the environment are reliable synbioindicators of the unlikely directed types of anthropic load on aquatic ecosystems.
Peculiarities of the Functioning of Bacterioplankton in the Upper Section of the Kanev Reservoir at the Present Time
86-96
10.1615/HydrobJ.v47.i1.80
T. V.
Golovko
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
V. M.
Yakushyn
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
N. I.
Tronko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
bacterioplankton
reproduction rate
production
grazing of bacteria
energy flux
The peculiarities of the functioning of bacterioplankton in the upper section of the Kanev Reservoir were studied in 2002−2004. It has been found that a decrease in the numbers of plankton bacteria as compared to the late 1990s was compensated by the increase in their functional activity. During this period, the requirements of bacterioplankton for energetic metabolism decreased, whereas its productivity (P/R) and ecological efficiency (G/A) increased.
Peculiarities of the Influence of Humic Acids on the Development of Plankton Algae
97-104
10.1615/HydrobJ.v47.i1.90
V. A.
Medved'
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
T. A.
Vasilchuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
O. V.
Vasilenko
Ternopol National Pedagogical University, Ternopol; Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
P. D.
Klochenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
humus substances
humic acids
phytoplankton
The response of plankton algae found in water bodies of various types to the influence of humic acids isolated from the water of the Kanev Reservoir (Ukraine) was investigated. The concentration of humic acids introduced into the samples of natural water accounted for 2.0 and 5.0 mg/L. The influence of humus substances on the development of phytoplankton was judged from changes in its numbers and biomass, which was determined by the method of sedimentation. The peculiarities of the response of blue-green and green algae, and also of diatoms, to the influence of the studied substances were revealed.
Effect of Trematoda Infestation and Zinc Ions of the Aquatic Medium on Hemocytes and Some Hematological Characteristics of Planorbarius purpura (Mollusca: Gastropoda: Pulmonata: Bulinidae)
105-113
10.1615/HydrobJ.v47.i1.100
A. P.
Stadnichenko
Ivan Franko Zhytomyr University Zhytomyr, Ukraine
G. Ye.
Kirichuk
Zhytomyr State University, Zhytomyr, Ukraine
Planorbarius purpura
Echinoparyphium aconiatum
zinc ions
hemocytes’ histometry
hematological characteristics
Paper deals with data on effect of zinc on dimensions of hemocytes and some quantitative hematological characteristics of P. purpura in normal state and at infestation by Trematodes E. aconiatum at 14-days stay in zinc-containing media (concentrations corresponding 0.5, 2.0, 5.0 and 10.0 MPC).