GEOECOLOGICAL PROBLEMS OF FLOW FORMATION IN THE WHITE SEA WATER AREA (ON THE EXAMPLE OF THE KOSTOMUKSHA ORE CLUSTER)

Kandalaksha graben, located in the water-area of the White sea, is a part of the Onega-Kandalaksha paleorift of the Riphean time of foundation. It is filled with the terrigenous formations of the Terskaya suites ranging from 3 to 8 km by depth, while the age of the rocks of the Terskaya suite is still controversial, and according to different sources, ranges from 1300 to 670 Ma. This means that the time of the formation of Kandalaksha Graben is not precisely defined. In 2016, on the Tersky Bank of the Kola Peninsula, a sample of sandstones of the suite was selected. The age of the rock of 1390±25 Ma, i.e. the boundary of the early and middle Riphean, was determined by the K-Ar isotope method.. This corresponds to the time of the beginning of the stretching of the lithosphere and continental rifting. Quartz-microcline metasomatites formed on sand-shale spit of Terskaya suite in the zone of amethyst deposit of Cape Korablik gave the age of 821±170 Ma, determined by Sm-Nd method, and fluorite of the same rocks gave the age of 690±71 Ma. The last value is close to the age of the basalts from the Onega depression, defined by the same method. These data correspond to the momentum of stretching of the passive Timan margin of the Baltic area at the end of the late Riphean.

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Na+/K+-ATPase Activity in Smolts of Pink Salmon Oncorhynchus gorbuscha (Walbaum, 1792) from the White Sea Exposed to Fresh, Estuarine, and Sea Water

Doklady Biological Sciences ◽

10.1134/s0012496621060041 ◽

2021 ◽

Vol 501 (1) ◽

pp. 201-205

Author(s):

E. I. Kaivarainen ◽

N. L. Rendakov ◽

D. A. Efremov ◽

N. N. Nemova

Keyword(s):

Atpase Activity ◽

White Sea ◽

Sea Water ◽

Pink Salmon ◽

Oncorhynchus Gorbuscha ◽

The White Sea ◽

Pink Salmon Oncorhynchus Gorbuscha

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The Symbiotic Association of Starfish Asterias rubens and Copepod Scottomyzon gibberum

Journal of Environmental Treatment Techniques ◽

10.47277/jett/1548 ◽

2020 ◽

Vol 8 (4) ◽

pp. 1545-1548

Keyword(s):

White Sea ◽

Water Area ◽

Size Class ◽

Coelomic Fluid ◽

Symbiotic Association ◽

The White Sea ◽

Asterias Rubens ◽

Biological Station ◽

Kandalaksha Bay ◽

Number Of Cells

In this paper we study the specifics of the population of copepods Scottomyzon gibberum Scott dwell in starfish Asterias rubens L. in Kandalaksha Bay of the White Sea near the N.A.Pertsov White Sea Biological Station. We singled out the "average" most populated starfish size class. The distribution of copepods on the surface and the proportion of individuals in the galls depend on the type of the biotope in which populations of starfish live and salinity of the water. In the area of Polovie islands and "Babie Sea" population of starfish is higher as well as the number of cells in their coelomic fluid. The area of the carapace of copepods in the researched water area varies.

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THE SEDIMENTARY COVER STRUCTURE OF THE KANDALAKSHA GULF OF THE WHITE SEA) ACCORDING TO CONTINUOUS SEISMIC PROFILING DATA

Moscow University Bulletin. Series 4. Geology ◽

10.33623/0579-9406-2018-2-81-92 ◽

2018 ◽

pp. 81-92

Author(s):

A. V. Starovoytov ◽

M. Yu. Tokarev ◽

Ya. E. Terehina ◽

N. A. Kozupitsa

Keyword(s):

White Sea ◽

Spatial Configuration ◽

Sedimentary Cover ◽

Bottom Topography ◽

Geological Structure ◽

Water Area ◽

Biological Research ◽

Research Station ◽

The White Sea ◽

Kandalaksha Gulf

The geological structure of the water area adjacent to the White Sea biological research station of the Moscow State University (the Rugoserskaya bay and the Great Salma strait, the Kandalaksha gulf of the White Sea) was examined for the first time basing on seismoacoustic data. The morphology of top of the Archaean basement, the structure of the Quaternary sedimentary cover and the bottom topography were studied. A sequence of glacial deposits dating back to the last glaciation and a compound sequence of glaciolacustrine, glacial-marine and marine sediments were delineated. Spatial configuration and thickness behavior were examined. It was demonstrated that the recent bottom topography is controlled by the faults, characterized predominantly by north-western and the north-eastern strike, and affecting the entire sedimentary cover including the Holocene sediments.

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134Cs, 137Cs, 40K, 232Th, 226Ra in bottom sediments of the Dvina Bay on the White Sea (the Suhoe Sea Gulf)

Arctic Environmental Research ◽

10.3897/issn2541-8416.2018.18.4.148 ◽

2018 ◽

Vol 18 (4) ◽

pp. 148-154 ◽

Cited By ~ 1

Author(s):

Vidas Kriauciunas ◽

Stanislav Iglovsky ◽

Alexander Bazhenov ◽

Irina Kuznetsova ◽

Evgenya Shakhova ◽

...

Keyword(s):

Bottom Sediments ◽

White Sea ◽

Sea Water ◽

Specific Activity ◽

Chemical Properties ◽

Statistical Processing ◽

Distribution Patterns ◽

Nuclear Industry ◽

The White Sea ◽

Natural Processes

The Suhoe Sea Gulf is a unique White Sea water body. Taking into account the risk of contamination of the White Sea with radionuclides as a result of the activities of the domestic and foreign nuclear industry and considering the plans to construct a deep-water part of the Arkhangelsk port on the Kuya River, the content and distribution patterns of natural and man-made radionuclides in the bottom sediments of the Suhoe Sea Gulf need to be studied. The specific activity of radionuclides was measured using a PROGRESS-2000 gamma spectrometer. Statistical processing of the data was performed using the STATISTICA (data analysis software system), version 10 software by StatSoft, Inc. (2011). The average specific activity of 226Ra, 232Th and 40K was 6.5 ± 1.4, 14.2 ± 4.3, 416 ± 89, accordingly. 134Cs and 137Cs were detected in 4 and 5 samples with a mean specific activity value of 3.3 ± 1.6 and 3.5 ± 1.1, respectively. The highest specific activity values of 40K are confined to the pelitic deposits. The main driving force in the processes of accumulation and redistribution of 232Th is gravitational water accumulation and mechanical transfer. The measured values of the specific activity of radionuclides do not exceed those previously determined by other authors in the bottom sediments of the White Sea. Correlation analysis showed a significant relationship between the content of 134Cs and 137Cs (0.77, p = 0.05), 232Th and 40K (0.67, p = 0.05) and 137Cs and 40K (0.84, p = 0.05). Factor analysis allowed two groups of radionuclides to be identified, their content being is determined by different processes: 134Cs, 137Cs, and 40K are jointly controlled by the most powerful factor (50%) and 232Th is affected by the weaker factor (29 %). Both factors are based on natural processes of radionuclide receipt and redistribution: the first factor reflects the ability of bottom sediments to adsorb 40K and isotopes of cesium, which are similar in chemical properties, and the second one reflects the natural process of removal by rivers of 232Th with terrigenous material.

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Optimization of the White sea environmental monitoring network

Journal of Oceanological Research ◽

10.29006/1564-2291.jor-2020.48(1).5 ◽

2020 ◽

Vol 48 (1) ◽

pp. 73-84

Author(s):

O. P. Netsvetaeva ◽

V. B. Korobov ◽

E. O. Antipov ◽

A. G. Tutygin

Keyword(s):

Environmental Monitoring ◽

Oxygen Saturation ◽

Traveling Salesman Problem ◽

White Sea ◽

Monitoring Network ◽

Water Area ◽

Marine Water ◽

Traveling Salesman ◽

The White Sea ◽

Monitoring Stations

The order of the environmental monitoring stations is very important for marine water areas that characterized by high indentation of the coastline, a significant number of islands and shallows. This article proposes a methodology in order to reduce the number of monitoring stations based on zoning of the water area followed by optimization of the research vessels route. The optimization was performed using the well-known traveling salesman problem algorithm, which was improved for this case. It is shown that this approach allows to reduce the time of one survey by 15–20% on the example of monitoring the oxygen saturation in the White Sea waters.

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