scholarly journals Changes in the relationship between sea temperature and recruitment of cod, haddock and herring in the Barents Sea

2013 ◽  
Vol 9 (9) ◽  
pp. 895-907 ◽  
Author(s):  
Bjarte Bogstad ◽  
Gjert Endre Dingsør ◽  
Randi B. Ingvaldsen ◽  
Harald Gjøsæter
Keyword(s):  
Barents Sea ◽  
Sea Temperature ◽  
The Barents Sea ◽  
The Relationship

Variations in the activity of the thyroid gland of the cod, Gadus callarias L., in relation to its migrations in the Barents Sea II. The ‘dummy of run’ of the immature fish

1959 ◽  
Vol 38 (2) ◽  
pp. 417-422 ◽  
Author(s):  
A. D. Woodhead
Keyword(s):  
Thyroid Gland ◽  
Barents Sea ◽  
Spawning Ground ◽  
Sea Trout ◽  
The Barents Sea ◽  
Thyroid Glands ◽  
Seasonal Migrations ◽  
Relationship Of ◽  
The Relationship ◽  
Immature Fish

Describing the migrations and movements of the cod, Gadus callarias L., in the Barents Sea, Trout (1957) suggested that the immature fish carry out a false spawning migration. ‘The pattern of migration of the immatures is basically similar to that of the matures…with increasing age, the immatures’ southerly winter migration approached in length that of the mature cod, as if, in the years immediately prior to maturity they were making a “dummy run” towards the spawning ground.' The seasonal migrations of both the adult and immature cod have been related to changes in the activity of the thyroid gland in this fish (Woodhead, 1959). During the spring of 1956 and 1957, collections of thyroid glands from immature cod were made at stations from Bear Island to the Norwegian coast. It was hoped that a study of these glands might demonstrate further the relationship of the activity of the thyroid gland to the migration of the fish.

scholarly journals On unique stone beaches on the Arctic coast of the Kola Peninsula

Vestnik MGTU ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 46-56
Author(s):  
Y. N. Neradovsky ◽  
Y. A. Miroshnikova ◽  
A. A. Kompanchenko ◽  
A. V. Chernyavsky
Keyword(s):  
Barents Sea ◽  
Golden Section ◽  
Stable State ◽  
The Arctic ◽  
Solid Core ◽  
Clastic Material ◽  
The Barents Sea ◽  
Beach Sediments ◽  
Arctic Coast ◽  
The Relationship

The results of studies of 11 stone beaches on the coast of the Barents Sea in the area of the Teriberskaya Bay have been presented. The studies were carried out from 2017 to 2019. As a result of the work, the structure of the beaches, their size, the composition of clastic material and the relationship with bedrocks were studied in detail. The genetic link between beaches and sea terraces has been established. Special attention has been paid to the morphology of beach clastic material, the conditions of its formation, and its role in abrasion activity. It has been shown that the clastic material of the beaches mainly corresponds to boulders equal to 100-1,000 mm, to a lesser extent to pebbles 10-100 mm, and rarely - gravel 1-10 mm. Individual boulders reach 2,000 mm. Sandy fractions in the composition of beach sediments are practically absent. The roundness of the fragments is high, semi-circular and rounded grains predominate, the most perfect shape of the rounded fragments is a biaxial ellipsoid or egg. Perfectly rounded boulders and pebbles in some areas account for up to 30 % of beach deposits. Measurements of the parameters of the egg-shaped pebbles have shown that they are close to the parameters of the "golden section" of the egg, i. e. meet the most durable form, resistant to destruction. Thus, the process of abrasion of the beach debris is directed towards their acquisition of the most energetically stable state. This suggests that the original shape of the debris contained a solid core in the form of a biaxial ellipsoid.

scholarly journals Seasonal and Interannual Variability of the Barents Sea Temperature

2019 ◽  
Vol 25 ◽  
pp. 1-13
Author(s):  
Ilya V. Serykh ◽  
Andrey G. Kostianoy
Keyword(s):  
Interannual Variability ◽  
North Atlantic ◽  
Barents Sea ◽  
Southern Oscillation ◽  
North Atlantic Current ◽  
Sea Temperature ◽  
The North ◽  
The Barents Sea ◽  
The North Atlantic ◽  
The North Atlantic Oscillation

Analysis of the monthly average temperature data of the Barents Sea at various depths for the period 1948-2016 showed its growth, which accelerated significantly since the mid-1980s. Against the background of this growth, interannual variability was found over periods of 2 to 7 years and about 10 years. It is shown that periods of this variability can be associated, respectively, with El Nino - Southern Oscillation and the North Atlantic Oscillation. It has been hypothesized that the Global Atmospheric Oscillation may be the synchronizing mechanism of the interannual variability of the tropics of the Pacific Ocean, the North Atlantic and the Barents Sea. Interdecadal changes with a period of about 15 years were also found, which are most likely related to surface temperature anomalies carried by the North Atlantic Current.

Petrography of bottom rock material

2021 ◽  
pp. 492-530
Author(s):  
G.S. Kharin ◽  
◽  
D.V. Eroshenko ◽  
A.V. Bulokhov ◽  
S.M. Isachenko ◽  
...  
Keyword(s):  
Barents Sea ◽  
Distribution Patterns ◽  
Geological Mapping ◽  
Rock Material ◽  
Quaternary Sediments ◽  
Petrographic Composition ◽  
The Barents Sea ◽  
Mineral Compositions ◽  
The Relationship ◽  
Bottom Rock

The Quaternary sediments of the Barents Sea contain a large amount of coarse clastic bottom rock material (BRM), with varying degrees of grain roundedness. Its study is important in determining the type and composition of the earth's crust, with paleogeographic constructions and revealing data on the dynamics of the ice cover. Studies of the Barents Sea BRM began in the 20s of the last century. During this period, were formed basically two hypotheses about the relationship between the distribution of BRM with elements of the sea topography and bedrock exposure. One of them considers BRM a marker suitable for identifying petrographic provinces at the bottom of the Barents Sea [Klenova, 1960]. In this chapter, on the basis of new up-to-date data obtained in 67 and 68 cruises of the RV Akademik Mstislav Keldysh in 2016–2017, the grain size, petrochemical and mineral compositions of BRM are estimated, their distribution patterns are given, transportation methods are analyzed and its feasibility is evaluated use in geological mapping. 4,193 samples were processed in Quaternary sediments, among which 86 reference types were identified. It was shown that the diversity of the composition of the Barents Sea BRM depends on glacial and ice-ice spacing. Therefore, the use of BRM for geological mapping of the bottom of the Barents Sea is unsuitable. The petrographic composition of the BRM in different regions of the Barents Sea is subject to significant fluctuations, but in general it is complementary to the set of rocks in the areas of demolition of adjacent land and depends on the extent of exaration and the removal of exaration material by the glacier to sedimentation areas.

scholarly journals Extraction of sea temperature in the Barents Sea by a scale space multiresolution method – prospects for Atlantic salmon

2016 ◽  
Vol 44 (13) ◽  
pp. 2317-2336 ◽  
Author(s):  
Leena Pasanen ◽  
Päivi Laukkanen-Nevala ◽  
Ilkka Launonen ◽  
Sergey Prusov ◽  
Lasse Holmström ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Barents Sea ◽  
Scale Space ◽  
Sea Temperature ◽  
The Barents Sea

Method application of optimal multi-parameter analysis to assess the distribution of water masses as an example of CTD data of the Barents Sea in summer 2017

2019 ◽  
pp. 38-51
Author(s):  
Valeriy G. Yakubenko ◽  
Anna L. Chultsova
Keyword(s):  
Barents Sea ◽  
Field Measurements ◽  
Structural Similarity ◽  
Water Masses ◽  
Parameter Analysis ◽  
Water Dynamics ◽  
Phosphorus Concentration ◽  
Nitrogen And Phosphorus ◽  
The Barents Sea ◽  
Expert Assessments

Identification of water masses in areas with complex water dynamics is a complex task, which is usually solved by the method of expert assessments. In this paper, it is proposed to use a formal procedure based on the application of the method of optimal multiparametric analysis (OMP analysis). The data of field measurements obtained in the 68th cruise of the R/V “Academician Mstislav Keldysh” in the summer of 2017 in the Barents Sea on the distribution of temperature, salinity, oxygen, silicates, nitrogen, and phosphorus concentration are used as a data for research. A comparison of the results with data on the distribution of water masses in literature based on expert assessments (Oziel et al., 2017), allows us to conclude about their close structural similarity. Some differences are related to spatial and temporal shifts of measurements. This indicates the feasibility of using the OMP analysis technique in oceanological studies to obtain quantitative data on the spatial distribution of different water masses.

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