Begell House Inc.
Hydrobiological Journal
HYD
0018-8166
53
3
2017
Stability and Steadiness of the Aquatic Ecosystems
3-13
10.1615/HydrobJ.v53.i3.10
A.F.
Alimov
Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia
stability
steadiness
ecosystem
eutrophication
As stability of a community or ecosystem it is suggested to consider deviations of their parameters from the certain average level, character of each system as historically developed under the certain conditions. As a measure of
the system's stability we suggest the variability of biomass dynamics (ratio of seasonal, annual or long-term minimum of biomass to correspondent maximum). Under specific environmental conditions with certain seasonal variability,
determined by the geographical position, ecosystems of certain structure are developed. Seasonal or annual average values of the structural and functional
characteristics of these systems remain unchanged for a long time. This demonstrates the stability of ecosystems under specific conditions. Under the impact of certain environmental factors particular ecosystem can remain stable
as long as the factors are within the limits to which it is historically adapted. Over changes of the external factors' quality or when degree of their effect exceeds the
adaptive capacity of the organisms, for example at pollution or other anthropogenic loads, to which the system is not adapted, its structure and functioning will change and the system will turn to different state with new
values of the structural and functional characteristics. It will remain stable as long as these factors affect it. Regarding the effects of anthropogenic factor we
introduce the idea of the system's steadiness, under which we consider the ability of a system to sustain changes of the external environment. There is no reason to speak about the stable and unstable ecosystems. The ecosystem is in stable state until it is affected by specific environmental factors of constant degree. It is characterized by structural and functional characteristics, steadiness.
Distribution and Peculiarities of Biology of the Pumpkinseed Lepomis gibbosus (Perciformes: Centrarchidae) in the Water Bodies of Kyiv City
14-25
10.1615/HydrobJ.v53.i3.20
S. A.
Afanasyev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ye. A.
Gupalo
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
O. V.
Manturova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
invasive species
pumpkinseed Lepomis gibbosus
water
bodies of Kyiv city
In the water bodies of Kyiv city high density of the invasive fish species Lepomis gibbosus (Linnaeus) was registered. The fish is characterized by high ecological flexibility, serve as a trophic competitor and thus can threaten aboriginal fishes. By totality of morphological features pumpkinseed from the water bodies of Kyiv occupies a detached position and is characterized by significant variability, high growth rate, high fatness and nutritional state, and earlier maturing.
Hydroecological Characteristics of the Sasyk Liman and the Sasyk Reservoir
26-43
10.1615/HydrobJ.v53.i3.30
A. V.
Lyashenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Ye. Ye.
Zorina-Sakharova
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
biota
water quality
the Sasyk liman
the Sasyk Reservoir
Dynamics of hydrobiological indices and characteristics of water quality in the Sasyk liman and the Sasyk Reservoir are given based on material of original long-term investigations and literature data.
First Record of Chrysococcus rufescens G.A. Klebs f. tripora J.W.G. Lund (Chrysophyta) in Ukraine
44-51
10.1615/HydrobJ.v53.i3.40
G. G.
Lilitskaya
M.G. Kholodny Institute of Botany, NAS of Ukraine,
2 Tereschenkivska Str., Kiev 01601, Ukraine
P. D.
Klochenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
T. F.
Shevchenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
first record
Chrysococcus
Chrysophyta
new
nomenclatural combination
Mass development of Chrysococcus rufescens G.A. Klebs f. tripora J.W.G. Lund (Chrysophyta) new for the algal flora of Ukraine was observed in studies of phytoplankton of the ponds of the Goloseyevo National Natural Park. The peculiarities of the morphological structure and quantitative indices of the development of this species were investigated. Its original figures, microphotographs, and description, and also characteristics of the environmental conditions, are given in the paper. A new nomenclatural combination Chrysococcus lundianus Lilitskaya et Klochenko comb. nov. was put forward.
Biomorphological and Anatomic Researches of Nymphaea alba, Nuphar lutea and Nuphar pumila in Outdoor and Indoor Ponds in the A. V. Fomin Botanical Garden
52-59
10.1615/HydrobJ.v53.i3.50
M. Ya.
Didukh
A. V. Fomin Botanical Garden
Kyiv, Ukraine
G. Ya.
Didukh
A. V. Fomin Botanical Garden
Kyiv, Ukraine
T. P.
Mazur
O. V. Fomin Botanical Garden Kyiv, Ukraine
N. V.
Nuzhyna
A. V. Fomin Botanical Garden
Kyiv, Ukraine
Nymphaea
Nuphar
introduction
biomorph
anatomical
peculiarities
It has been determined that under conditions of indoor and outdoor ponds of the A.V. Fomin Botanical garden biomorphological peculiarities of the root system of the introduced plants Nymphaea alba L., Nuphar lutea (L.) Sm. and N. pumila (Timm) DC did not change. The comparative-anatomic analysis of floating and emerged leaves in plants in indoor and outdoor ponds showed differences of adaptation to environment conditions of different species.
Comparative Morphology of Early Oogenesis Stages in Two Forms of Baikal Grayling Thymallus baicalensis (Thymallidae)
60-69
10.1615/HydrobJ.v53.i3.60
A. N.
Zaytseva
Limnological Institute SB
Russian Academy of Sciences
Irkutsk, Russian Federation
N. S.
Smirnova-Zalumi
Limnological Institute SB
Russian Academy of Sciences
Irkutsk, Russian Federation
N. I.
Zakharova
Irkutsk State University
Irkutsk, Russian Federation
L. V.
Sukhanova
Limnological Institute SB
Russian Academy of Sciences
Irkutsk, Russian Federation
Baikal grayling Thymallus baicalensis
forms
sex
differentiation
oocytes
oogenesis
gonads
The comparative histological study was performed on gonads at the early stages of ontogenesis of two forms of grayling Thymallus baicalensis grown in aquaculture. It was established that cytological features of ovaries are formed
earlier than anatomical. Over gonads' forming germ cells in black and white grayling undergo identical phases of development at the same age. Diameter of oocytes (and their nuclei) was similar at the beginning of previtellogenesis. Both forms of grayling of the same age differ by the ratio of the number of germ cells of different development phases. The number of maturing oocytes at the pachytene stage and at the beginning of previtellogenesis does not increase in the
black grayling at the age of 733 and 1102 degree-days, whereas in the white grayling at the age of 1102 degree-days the ratio of germ cells varies at all stages of development. Moreover, the number of maturing oocytes at the pachytene
stage and at the beginning of previtellogenesis is 2 and 3 times higher than in the black grayling. Dynamics of germ cell ratios may indicate the completion of the reserve of maturing oocytes forming in the black grayling and the continuation of this process in the white one. Further investigations are required for studying differences in the rates of reproduction of gonium and primordial germ cells and nature of the replenishment of oocyte reserves.
Water Quality Assessment in the Selenga River and Its Delta in terms of Sanitary and Microbiological Indices
70-81
10.1615/HydrobJ.v53.i3.70
M. Yu.
Suslova
Limnological Institute
Siberian Department
Russian Academy of Sciences
Irkutsk, Russian Federation
O. S.
Pestunova
Limnological Institute
Siberian Department
Russian Academy of Sciences
Irkutsk, Russian Federation
V. V.
Parfenova
Limnological Institute, Siberian department Russian Academy of Sciences, Irkutsk, Russia
the Selenga River
Lake Baikal
water quality
coliform
bacteria
enterococci
In 2006–2010 water quality of the Selenga River, including its delta and main tributaries, located within the territory of Russian Federation was assessed and analyzed in terms of sanitary and microbiological indices. Sanitary indicator
microorganisms occurred along the whole length of the river, especially in summertime. Analysis of their composition and quantitative indices made it possible to conclude that water quality in the river is significantly deteriorated. In
summertime, the water of the Selenga River does not correspond to the requirements of the Russian Federal Standard of Water Quality. It can not be recommended as a source of drinking and household water supply, and also for
recreation.
Studies on the Composition of Intestinal Bacterial Flora of Acipenser schrenckii and Huso dauricus Bred under Artificial Conditions
82-89
10.1615/HydrobJ.v53.i3.80
Ye. A.
Bogatyrenko
Far East Federal University
Vladivostok, Russian Federation
taxonomic composition
normal microflora
Acipenser
schrenckii
Huso dauricus
The composition of the communities of cultivated heterotrophic bacteria of the intestinal tract of Acipenser schrenckii and Huso dauricus bred under artificial conditions has been studied for the first time. Under similar conditions of occurrence, the studied specimens of fish essentially differed in the composition of intestinal bacterial flora. It has been found that in ill specimens the taxonomic diversity of intestinal microbiota was significantly lower than that registered in healthy specimens. It has been shown that the intestinal microflora
is formed selectively at the expense of the microflora of the water.
Capability for Accumulating Metals and Remediation Potential of Pistia stratiotes
90-99
10.1615/HydrobJ.v53.i3.90
O. P.
Olkhovich
Kiev National University
Kiev, Ukraine
S. V.
Grechyshkina
Kiev National University
Kiev, Ukraine
Nataliya Yu.
Taran
Research and Training Center "Institute of
Biology and Medicine" of Kiev National
Taras Shevchenko University, Kiev
L. M.
Batsmanova
Kiev National University
Kiev, Ukraine
N. B.
Svetlova
Kiev National University
Kiev, Ukraine
Pistia stratiotes
metals
water body phytoremediation
capacity for accumulation
The capacity of Pistia stratiotes L. for metal accumulation and its remediation potential were studied under laboratory and natural conditions. It has been found that in the roots of P. stratiotes the content of various elements can be 2-10 times higher than that in its leaves. It has been shown that this plant selectively accumulates Li, Co, Ni, Sr, Cd, and Bi. The performed investigations suggest that P. stratiotes possesses a high remediation potential. At the same time, it is characterized by a high potential for naturalization in natural water bodies, which can bring the threat to natural diversity and water resources of Ukraine.
Selection of Mineral Substrates by Chironomus riparius Larvae
100-106
10.1615/HydrobJ.v53.i3.100
V. D.
Romanenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
M. T.
Goncharova
Institute of Hydrobiology National Academy of Sciences Kiev, Ukraine
I. M.
Konovets
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
L. S.
Kipnis
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
Chironomus riparius larvae
development
substrate grain
size
selectivity
It was shown that the optimal substrates for growth and development of the non-biting midges Chironomus riparius larvae are silty and fine sandy. The
larvae are able to select the substrate; they prefer fine fractions and avoid larger-medium sand fraction, but substrate preference of larvae is determined rather by food conditions than particle size.
Flexibility of Reproductive System of Females of Fam. Percidae in Terms of Physiological-Biochemical Parameters
107-115
10.1615/HydrobJ.v53.i3.110
M. V.
Prychepa
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
O. S.
Potrokhov
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
O. G.
Zin'kovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
perch Perca fluviatilis
pikeperch Stizostedion lucioperca
ruff Gymnocephalus cernuus
absolute fertility
energy-intensive compounds
environmental conditions
Reproductive characteristics, physiological and biochemical status of Percidae fishes from the water bodies of different types were investigated. The highest absolute fertility was observed in populations of perch and pikeperch from the Kakhovka Reservoir, which is subjected to the most significant anthropogenic impact. Perch and pikeperch from the water bodies with more favorable environmental conditions (the Teteriv River, the Kyiv reservoir) were
characterized by higher content of total protein, lipids and glycogen in the eggs as compared with fishes from the Kakhovka Reservoir. Direct correlation between the content of energy-intensive compounds in the gonads and absolute
fertility in three species of fam. Percidae was established. Considered parameters can be used for bioassay of ecological status of the water bodies and prognosis of the Percidae fishes spawning effectiveness.