scholarly journals Mercury in the water of small rivers of the Onega Bay basin of the White Sea

2019 ◽  
Vol 487 (1) ◽  
pp. 93-96
Author(s):  
Yu. A. Fedorov ◽  
A. E. Ovsepyan ◽  
V. A. Savitskiy ◽  
A. A. Zimovets ◽  
I. V. Dotsenko
Keyword(s):  
Anthropogenic Impact ◽  
White Sea ◽  
Small Rivers ◽  
The White Sea ◽  
Natural Conditions ◽  
Onega Bay ◽  
The One ◽  
Dissolved Mercury ◽  
The Relationship ◽  
Hydrological Phases

The results of the expeditionary studies of the mercury behavior in the water of small rivers of the Onega Bay basin of the White Sea are presented. Priority forms of mercury migration have been identified and the forms of its location along the trunk of the Kyanda River have been calculated. The relationship between the content of various forms of mercury on the one hand and salinity, pH, Eh waters on the other has been analyzed. The influence of hydrological phases on the transformation of inorganic forms of mercury has been revealed. Differences in the levels of content of dissolved mercury and its connection with the salinity in the extuar areas of the marginal filters of the Subarctic rivers in natural conditions and the environment of anthropogenic impact were established.

Hydrological and hydrochemical research of the mouths of the small rivers flowing to the White sea in the winter low water season of 2019

2019 ◽  
Vol 59 (6) ◽  
pp. 1089-1092
Author(s):  
I. V. Miskevich ◽  
A. V. Leshchev ◽  
D. S. Moseev ◽  
A. S. Lokhov
Keyword(s):  
White Sea ◽  
Small Rivers ◽  
The White Sea ◽  
Hydrochemical Parameters ◽  
Catchment Basin ◽  
Onega Bay ◽  
Short Period ◽  
Tidal Estuaries ◽  
Hydrochemical Studies ◽  
River Mouths

In the winter low water season in March and the first week of April 2019, complex hydrological and hydrochemical studies were carried out at the mouths of two small rivers of the White Sea catchment basin (the Mudyuga river, which flows into the Dvina Bay, and the Tamitsa river, which flows into the Onega Bay). The results indicate significant differences in the short-period variability of hydrological and hydrochemical parameters in the winter in the studied river mouths compared with the characteristics observed in the tidal estuaries of large and medium rivers, as well as in the mouths of small rivers of the southern seas.

Mercury in the Water of Small Rivers of the Onega Bay Basin of the White Sea

2019 ◽  
Vol 487 (1) ◽  
pp. 804-806
Author(s):  
Yu. A. Fedorov ◽  
A. E. Ovsepyan ◽  
V. A. Savitsky ◽  
A. A. Zimovets ◽  
I. V. Dotsenko
Keyword(s):  
White Sea ◽  
Small Rivers ◽  
The White Sea ◽  
Onega Bay

Multidisciplinary studies in Onega Bay of the White Sea and the estuary of the Onega River during the summer period

Oceanology ◽  
2008 ◽  
Vol 48 (2) ◽  
pp. 255-267 ◽  
Author(s):  
Yu. S. Dolotov ◽  
N. N. Filatov ◽  
V. P. Shevchenko ◽  
M. P. Petrov ◽  
A. V. Tolstikov ◽  
...  
Keyword(s):  
White Sea ◽  
The White Sea ◽  
Summer Period ◽  
Onega Bay ◽  
Multidisciplinary Studies

Study of the Process of Biofouling of Environmentally Safe Paint Coatings in the Natural Conditions of the White Sea

2020 ◽  
Vol 46 (6) ◽  
pp. 620-634
Author(s):  
O. A. Shilova ◽  
V. V. Khalaman ◽  
A. Yu. Komendantov ◽  
Yu. A. Kondratenko ◽  
L. N. Efimova ◽  
...  
Keyword(s):  
White Sea ◽  
The White Sea ◽  
Natural Conditions ◽  
Environmentally Safe ◽  
Paint Coatings

Hydrological and Hydrochemical Research of the Mouths of the Small Rivers Flowing to the White Sea in the Winter Low-Water Season of 2019

Oceanology ◽  
2019 ◽  
Vol 59 (6) ◽  
pp. 992-994 ◽  
Author(s):  
I. V. Miskevich ◽  
A. V. Leshchev ◽  
D. S. Moseev ◽  
A. S. Lokhov
Keyword(s):  
White Sea ◽  
Small Rivers ◽  
The White Sea

Lithology, Biostratigraphy, and Geochronology of the Late Pleistocene–Holocene Sediments on the Coast of Onega Bay of the White Sea

2019 ◽  
Vol 485 (1) ◽  
pp. 312-316
Author(s):  
V. V. Kolka ◽  
O. P. Korsakova ◽  
N. B. Lavrova ◽  
T. S. Shelekhova ◽  
N. E. Zaretskaya
Keyword(s):  
Late Pleistocene ◽  
White Sea ◽  
The White Sea ◽  
Onega Bay ◽  
Holocene Sediments

scholarly journals D magnetic model of the Earth’s crust of the White Sea and adjacent territories

2021 ◽  
Vol 11 (3) ◽  
pp. 375-385
Author(s):  
M.Y. Nilov ◽  
◽  
L.I. Bakunovich ◽  
N.V. Sharov ◽  
B.Z. Belashev ◽  
...  
Keyword(s):  
Magnetic Field ◽  
White Sea ◽  
Sedimentary Cover ◽  
Magnetic Anomalies ◽  
Earth’S Crust ◽  
The White Sea ◽  
Spatial Frequencies ◽  
Magnetic Model ◽  
Earth's Crust ◽  
The Relationship

An important task for the White Sea region, Russia’s second largest diamond-producing province, is the search for magmatic bodies overlapped by sedimentary cover via magnetometer survey. The models, linking local and magnetic anomalies with their sources, are essential for interpretation of search results. The aim of the study is to build a 3D magnetic model of the Earth’s crust for the White Sea region using aeromagnetic data and the modeling technologies of the Integro software package. The simulation is basing on a digital map of the pole-reduced anomalous magnetic field. The sources of magnetic anomalies are believed to be located in the Earth’s crust. The researchers obtained 3D distribution of the relative magnetic susceptibility of rocks by solving the inverse problem of magnetic prospecting. To separate the magnetic sources by spatial frequencies and depth, the model magnetic field was recalculated upward, as well as the TDR derivatives, which determine the lateral boundaries of the sources of positive magnetic field anomalies, were calculated. The researchers further analyzed 2D distributions of the magnetic sources of the model for vertical and horizontal sections with depths of 10, 15 and 20 km, thus proving the relationship between the surface and deep structures of the magnetic sources of the Earth’s crust in the region.

scholarly journals Age and growth of European flounder from the Chupa Inlet (Kandalaksha Bay, the White Sea)

2019 ◽  
Vol 323 (2) ◽  
pp. 93-104 ◽  
Author(s):  
P.N. Yershov ◽  
A.A. Matvienko ◽  
D.A. Aristov
Keyword(s):  
Growth Rate ◽  
Age Structure ◽  
White Sea ◽  
The White Sea ◽  
North East ◽  
The North ◽  
Kandalaksha Bay ◽  
Onega Bay ◽  
European Flounder ◽  
Males And Females

We studied age structure, growth and distribution of European flounder Platichthys flesus at the sea in Chupa Inlet (Kandalaksha Bay, the White Sea). Immature and mature fishes fed at shallows of Chupa Inlet and adjacent open sea area in June-August. Size-age and sex composition of fishes in catches are presented in the paper. Individuals of 17–27 cm length and 4–5 year age constituted the majority of catches (45%). On the whole, males numerically predominated over females in the samples. Analysis of sexual differences of growth has shown that females grew faster than males. The most intensive growth took place in July–August, according to the increments on the otoliths. Growth rate of the flounder from Chupa Inlet appeared to be similar to the growth rate of the flounder from other open shore sites of Kandalaksha Bay. We have compared also peculiarities of growth and age structure of flounder populations from Kandalaksha Bay to those from other bays of the White Sea. Significant differences of the growth rate were found between flounders from Kandalaksha, Onega, Dvina and Mezen' Bays. Both males and females from Onega Bay grew faster than other. Growth rate of fish decreased towards the north (Kandalaksha Bay) and the north-east (Mezen' Bay). The most slow-growing flounder inhabited shallows of Mezen' Bay. Statistical analysis has shown that age structure of flounder populations varied in different bays of the White Sea, and observed regional variations were characteristic for both males and females. Flounder population in Onega Bay was characterized by the dominance of the younger individuals compared to populations in other bays. The greatest mean age of flounder was registered in populations from the north-west (Kandalaksha Bay) and the north-east (Mezen' Bay) parts of the White Sea. Males and females in populations from Onega and Dvina Bays differed significantly in the mean age, and as a rule females were older. No age differences between sexes were found in flounder population of Mezen' Bay. We suppose that temperature conditions were among the main factors influencing regional differences in growth rate and age structure of the flounder populations in the White Sea.

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