Magadan Region Research Articles

Temperature Adaptation in the Postembryonic Development of Acanthocephalus tenuirostris (Palaeacanthocephala: Echinorhynchidae)

Under experimental conditions, the larval development of a fish parasite, Acanthocephalus tenuirostris was studied. This species is common in the eastern regions of Russia from Primorye Territory to the upper reaches of the Kolyma River. The material for the experiments was collected in different areas of the Magadan region which is located mainly in the subarctic climate zone. In several series of experiments, the infection and maintenance of intermediate hosts, the isopod Asellus hilgendorfii, took place at a constant temperature 15°C. In all cases, no more than 45 days were required for the formation of the final cystacanth stage. At the same time, in the hemocoel of isopods a large number of other larval stages were present simultaneously with cystacants. An additional experiment was conducted for the first 45 days at 15°C and the next 207 days at 4–6°C, showed the possibility of further development of larvae at low temperatures. Based on the comparison with the data available in the literature on the development times of European Acanthocephalus species living in temperate climates, it is concluded that the A. tenuirostris has anadaptation to a cold climate, whichprovides a twofold acceleration of the rate ofits development relative to larval A. lucii in Europe.

Deer of the forest-tundra of the Magadan region

Purpose: to study the morphological and economically useful traits of domestic reindeer (Rangifer tarandus L.) in the forest-tundra zone of the Far North-East of Russia.Materials and methods. The study used zootechnical information from annual reports on completed research projects by employees of the Laboratory of Selection and Breeding in Reindeer Husbandry of the Magadan Zonal Research Institute of Agriculture of the North-East for the 1970-1980s and 2000s. The model for the research was the reindeer population of the Markovsky state farm, typical for the forest-tundra zone of the North-East. The area of ​​reindeer pastures on the farm exceeded 5 million hectares, with 142.8 hectares per head. The average size of the production herd was 2,500 individuals.Results. The article presents data on morphological and economically useful traits of reindeer in the forest-tundra of the North-East — a pasture-geographical space on the border of the ranges of two large groups of reindeer — tundra and taiga. In the Markovsky state farm, typical for the forest-tundra zone, out of 35 thousand reindeer in the main herd, 25 % were Even, 44 % were Chukchi and 31 % were crossbred Chukchi-Even animals. In the forest-tundra, a hybrid population of reindeer was formed as a result of crossing two sympatric populations of the Even and Chukchi breeds. The intermediate phenotype had characteristic differences from the original breeds in morphological traits — color, exterior and constitution (linear measurements, body indexes), and meat productivity indicators. The conclusion is made about the origin of the forest-tundra ecotype based on hybrids from crossing sympatric populations of Chukchi and Even reindeer of different generations, backcrossing, introgression, stabilizing selection, microevolution under the influence of natural conditions and anthropogenic factors.

Климатические изменения годового стока рек Северного Приохотоморья

The aim of this study was to assess the climatic changes in the annual river runoff of the Northern Okhotsk Sea region within the Magadan region. In the present work the analyzed series end with data for 2019. Observation series of river runoff at eight hydrological stations were used in this work. By the method of hydrological analogy, these series were brought to a multiyear period by restoring year-on-year values. Thus, the series of annual runoff for 1958–2019 were analyzed. The research method was the analysis of runoff time series for the presence of homogeneity in the mean (Student’s criterion), as well as spectral analysis. Comparison of mean long-term values of runoff layers for two periods (1958–2000 and 2001–2019) showed that the “norm” increased by 5–37%. It should be noted that these changes are not random according to the Student’s criterion with significance level of 5%. The presence of a trend in long-term water availability fluctuations is also evidenced by the time course of the dynamic mean annual runoff. Analysis of the runoff series, mean annual air temperature and total annual precipitation made it possible to conclude that annual runoff increase is caused by climatic changes, mainly by an increase in precipitation. It is possible that runoff increase is also due to the thawing of ice in the permafrost strata. But you should pay attention to the fact that with climate warming, moisture losses for evapotranspiration increase, primarily due to the growth of trees and shrubs. Moreover, this effect is more noticeable in large catchments. A 6-year cyclicity was revealed in the long-term fluctuations of annual runoff. These fluctuations are most likely a non-stationary complex Markov process. The results of this work will be useful for hydrological calculations, long-term and ultra-long-term runoff forecasts, and studying the river – sea ecosystems. Further hydrological studies should be carried out with the obligatory study of evapotranspiration in various landscape conditions.

Analysis of hybrid potato populations in the conditions of the Magadan region

The priority direction in potato breeding in the Magadan region, given the short growing season and heat shortage, is the creation of predominantly early-ripening potato varieties. The article presents the results of the evaluation of potato breeding samples in terms of productivity and ripeness. Over two years, about three thousand samples of 67 hybrid combinations have been studied. The research was carried out in 2022–2023 on the experimental field of the Magadan Scientific Research Institute of Agriculture on floodplain, sod-alluvial, pebble-sandy loam soils. More than two thousand samples represented by 25 hybrid combinations were studied in the nursery of seedlings. Hybrid combinations characterized by a high frequency of selection of promising forms are identified, such as Arctica × Elbeida, Udacha × Bellarosa, Krone × Bellarosa, Charoite × Bellarosa, Krone × Labadia, Arctica × Gala. In these hybrid combinations, from 7.6 to 17.9% of the samples from the total number of the seedlings planted in the field were selected as clones. The samples with high productivity indicators were selected in the nursery of hybrids of the 1st year. The maximum weight of tubers of one plant was noted in the populations of Columba × Krepysh – 2010, Udacha × Bellarosa – 1820, Arctica × Elbeida – 1825, Charoite × Bellarosa – 1800. In the nursery of hybrids of the 2nd year, hybrids with productivity exceeding 1000 g/bush, such as Columba × Krepysh (2700 g/bush), Udacha × Bellarosa (1950 g/bush), Arctica × Krepysh (1670 g/bush), were identified in terms of yield and economically valuable characteristics. The frequency of selection of productive clones here exceeded 50%. These hybrid combinations are recommended for breeding research in the conditions of the Magadan region.

Helminths in fish from lake and river systems of the Upper Kolyma Highlands that have medical and veterinary significance

The purpose of the research is to extend information across the distribution of zooanthroponotic helminth infections transmitted through freshwater fish in the Magadan Region.Materials and methods. The study area is located in the Upper Kolyma basin on the Magadan Region and the Republic of Sakha (Yakutia) border. The Omulevsky Park is also located here, one of the clusters of the Chersky National Park named after A. V. Andreev. The existing lake and river systems (Darpir, Momontai, Malyk, Urultun and Ui) are inhabited by 7 fish species: Arctic char (Salvelinus alpinus), east-Siberian grayling (Thymallus arcticus pallasi), round fish (Prosopium cylindraceum), Siberian sucker (Catostomus catostomus rostratus), burbot (Lota lota leptura), common minnow (Phoxinus phoxinus) and sculpin from the Kolyma (Cottus kolymensis). 685 specimens of fish were undergone parasitological survey using established procedures. The found helminths were fixed in 70% ethanol and clarified in glycerol.Results and discussion. In the study of the fish helminth fauna in the lake and river systems of the Upper Kolyma Highlands, three helminth species that posed a danger to humans and animals were identified, Dibothriocephalus dendriticus, D. ditremus (Diphyllobothriidae) and Eustrongylides excisus (Dioctophymatidae). Information was provided on fish infection with these parasites in the lake and river systems, and their distribution in the Magadan Region, and a brief description of these types of helminths was given. In domestic scientific and methodological publications, the problem of eustrongylidiasis as a zooanthroponotic disease is not sufficiently covered, therefore, emphasis is placed on nematodes of the genus Eustrongylides. The research results may attract the attention of sanitary and veterinary service specialists to this issue, especially given the creation of a national park in the Magadan Region. Data on the freshwater fish infection with Diphyllobothriidae in the Upper Kolyma Lake and river systems expand the diphyllobothriasis nosoarea in the Magadan Region and allows the Susumansky District to be included in its boundaries.

Факторы и уровень суммарного сердечно-сосудистого риска у населения северо-востока России

In northern regions, cardiovascular pathology tends to be more aggressive, is likely to occur at a young age already and often results in disability and even mortality among people who have not yet reached the retirement age. The aim of this study was to assess the structure and age-specific dynamics of basic factors able to cause cardiovascular diseases in men living in northern regions and the total cardiovascular risk. We conducted a one-center experimental cross-sectional comparative one-sample study of 116 men living in the north of the Magadan region. The complex study program included questioning, anthropometric examination, laboratory biochemical tests and molecular-genetic screening of candidate genes of essential hypertension (AGT (rs 4762), AGTR1 (rs5186), ADD1 (rs4961), NOS3 (rs2070744), and АСЕ (rs4340)). Genotyping was performed using real-time polymerase chain reaction. The total cardiovascular risk was calculated using the SCORE scale. The structure of basic risk factors that can cause cardiovascular diseases in men in the Magadan region includes both modifiable (smoking, obesity, essential hypertension, and dyslipidemia) and non-modifiable ones (climatic-geographic and genetic risk factors) in various age groups. With age, risk factors exert stronger influence on each other thus aggravating the clinical course of cardiovascular diseases and increasing risks of fatal cardiac events. This is especially important for northern regions where people are exposed to such non-modifiable risk factors as extreme climate. Moderate risk of cardiovascular diseases (according to the SCORE scale) was established for all men living in the North already at a young age. Therefore, a key task is to develop a strategy for active prevention of cardiovascular pathology that covers public at large starting from younger age groups.

Factors and level of the total cardiovascular risk for people in the north-eastern Russia

In northern regions, cardiovascular pathology tends to be more aggressive, is likely to occur at a young age already and often results in disability and even mortality among people who have not yet reached the retirement age. The aim of this study was to assess the structure and age-specific dynamics of basic factors able to cause cardiovascular diseases in men living in northern regions and the total cardiovascular risk. We conducted a one-center experimental cross-sectional comparative one-sample study of 116 men living in the north of the Magadan region. The complex study program included questioning, anthropometric examination, laboratory biochemical tests and molecular-genetic screening of candidate genes of essential hypertension (AGT (rs 4762), AGTR1 (rs5186), ADD1 (rs4961), NOS3 (rs2070744), and АСЕ (rs4340)). Genotyping was performed using real-time polymerase chain reaction. The total cardiovascular risk was calculated using the SCORE scale. The structure of basic risk factors that can cause cardiovascular diseases in men in the Magadan region includes both modifiable (smoking, obesity, essential hypertension, and dyslipidemia) and non-modifiable ones (climatic-geographic and genetic risk factors) in various age groups. With age, risk factors exert stronger influence on each other thus aggravating the clinical course of cardiovascular diseases and increasing risks of fatal cardiac events. This is especially important for northern regions where people are exposed to such non-modifiable risk factors as extreme climate. Moderate risk of cardiovascular diseases (according to the SCORE scale) was established for all men living in the North already at a young age. Therefore, a key task is to develop a strategy for active prevention of cardiovascular pathology that covers public at large starting from younger age groups.

ПЕРСПЕКТИВЫ ВВЕДЕНИЯ В КУЛЬТУРУ БРУСНИКИ ОБЫКНОВЕННОЙ (V. VITIS-IDAEA L.) В УСЛОВИЯХ МАГАДАНСКОЙ ОБЛАСТИ

Vaccinium vitis-idaea L. - common lingonberry occupies a special place in nature due to the value of its food and medicinal and prophylactic properties. Work on domestication of lingonberry is very limited. In Russia, extensive research on lingonberry selection was carried out at the Kostroma Forest Experimental Station. The result of this work was 4 varieties of lingonberry. In the Magadan Region, the work on domestication of lingonberry is of a pioneering nature. The object of the study were samples of common lingonberry plants (Vaccinium vitis-idaea L.). The collection of material for the research was carried out in 2023 in the Priokhotsk zone of the Magadan region, in the Olsky district, during the phase of active fruiting of plants - in September. For the study, 17 samples of partial plants of common lingonberry were selected. Evaluation of the productivity components of the studied samples revealed a high degree of variability in the components of the yield. The strongest variability was observed in the number of shoots (CV = 43.5%). The average degree of variability was noted for the length of shoots (CV = 16.34%) and their foliage (CV = 15.22%), the indicators varied, respectively, within 6 - 10 cm and 9 - 19 leaves. According to the fractional division, 47% of the fruits of the selected samples correspond to the medium fraction, the rest - to the small one. The average fruit weight in the samples was highly variable (CV = 46.14%). The average fruit diameter, depending on the sample, could be either 5.6 mm or 11.2 mm (CV=18.97%). As a result of studying and analyzing the samples of common lingonberry, 7 specimens were identified that were of interest for further work. Based on the results of office observations, it was established that the lingonberry samples selected and placed in laboratory conditions showed low resistance to stressful situations and weak viability in unnatural conditions.

ОЦЕНКА ГЕНЕТИЧЕСКОЙ СТРУКТУРЫ СЕЛЬСКОХОЗЯЙСТВЕННЫХ ПОПУЛЯЦИЙ ОЛЕНЕЙ ЧУКОТСКОЙ И ЭВЕНСКОЙ ПОРОД КРАЙНЕГО СЕВЕРО-ВОСТОКА РОССИИ

The preservation of the allelofund and increasing the productivity of domestic reindeer in the Far North-East of Russia is currently an urgent problem against the background of a decrease in the number of livestock in agricultural populations. The research work was carried out during 2014-2023 in the reindeer herding farms of the Magadan region - Agricultural complex "Irbychan" and the Chukotka Autonomous Okrug - breeding farms of the Municipal Unitary Enterprise agricultural complex "Khatyrskoye", "Amguema". The total number of deer involved in the work was 17,356. The aim is to study the genetic structure of populations of Even and Chukchi breeds in domestic reindeer husbandry in the Far North-East of Russia. The plucked ears of deer served as the material for molecular genetic studies. The most common genotypes of the Even breed are those with loci in their composition №3 (240-330), №5 (350-430), №6 (440-520), №7 (520-570) and No. 9 (700-770). 99% of the Chukchi deer breed has a fragment with a length of 240-330 bp (locus No. 3). Loci No. 6 (440-520) and No. 7 (520-570) were found in 93% of individuals, locus No. 5 (350-430) – in 95%. The frequency of ISSR markers made it possible to determine the parameters of the general population for the Even and Chukchi rocks, which are characterized by polymorphism of all detected loci. Since individual DNA fragments were present in deer of all populations, it can be concluded that for the Even breed the spectrum consists of 3 amplicons No. 3, 5, 6, and for the Chukchi breed it consists of 4 amplicons: №3, №5, №6, №7 it is typical. The genetic variability of ISSR markers in populations indicates a significant similarity between them in most allelic frequencies, which confirms the common origin, economic and breeding use of Even and Chukchi deer. For the first time, long-term, long-term monitoring of the genetic characteristics of the populations of domestic reindeer of the Magadan region and Chukotka was carried out in a comparative aspect, which has urgent scientific and practical significance for further improvement of breeding work in reindeer husbandry.

Moss flora of Magadan region in the context of moss floras of the Russian Far East

Moss flora of Magadan region in the context of moss floras of the Russian Far East

Age-related anthropometric changes in physical development among aboriginal schoolchildren in Russia’s North-East

BACKGROUND: Schoolchildren from an educational institution of Severo-Evensk District Magadan Region, participated in an anthropometric survey. AIM: To assess anthropometric characteristics of indigenous schoolchildren in the Magadan Region across different age-groups. MATERIAL AND METHODS: Two hundred and eight boys and one hundred and ninety girls from the Evens, Koryaks and Itelmen ethnic groups participated in the 2021–2023 Anthropometric Survey. They accounted for 67.2% of all schoolchildren surveyed. Body height (BH), body mass (BM), chest circumference (CC), sitting height (HSit), right- and left-hand grip strength were measured. We also calculated annual increase in weight and height, as well as proportionality of physical development of the children. RESULTS: A natural increase in the absolute body indicators of BH, BM, HSit, CC, and right and left hand strength have been observed parallel to increase in age from 8 to 17 years. The rate of annual growth indicated different timing of the periods of accelerated increase in the anthropometric characteristics. Girls exhibited a CC maximum increase at 10–11 years old with simultaneous increase in BH, BM, HSit, and hand grip strength at 11–12 years old. During the same age-periods, boys showed a pronounced BH growth with BM and CC increase at 12–13 years of age. After a slight attenuation in the growth rate, we observed a substantial increase in BH at the age of 14–15, associated with gender-related aspects in older children groups. Sex-related characteristics of BH increase were primarily associated with differences in the leg growth rates during the puberty, and tend to be greater in boys. Most of the studied boys had an asthenic somatotype. At the same time, most girls had a proportional body type with high percentage of those with relatively short legs. CONCLUSION: We observed that girls were ahead of boys in their physical development. Boys demonstrated a continuous development in their main anthropometric characteristics with more pronounced dynamics in adolescence. Our findings suggest that indigenous schoolgirls have better physical development and adaptive adjustments compared to boys.

Identification of new objects promising for porphyry molybdenum-copper mineralization when creating the State geological map 1000/3: Sheets O-55, O-56 (Northern Priokhotye, Magadan region) as an example

The Motykleisky, Chistoozerny, and Pavlovichsky new ore clusters promising for porphyry molybdenum-copper mineralization have been identified in the Magadan region due to results of creation of the State Geological Map 1000/3, sheets O-55, O-56. The porphyry-type mineralization is associated with the Priokhotsky plutonic belt of Albian-Cenomanian granitoids of the Magadan suite of the calcareous-alkaline series (K/Na <1). The granitoids are dominated by porphyritic tonalites and quartz diorites of type I magnetite series, often adakitic in composition. The mineralization is accommodated by the Jurassic-Lower Cretaceous island-arc sedimentary-volcanic formations. Relationship between the mineralization and granitoids is substantiated by the U-Pb SIMS SHRIMP and Re-Os TIMS dating. In potential ore clusters, the mineralization is manifested by extensive fi lds of hydrothermal-metasomatic alterations (propylites and quartz-sericite-pyrite metasomatites). Recommendations are given for follow-up large-scale geological survey and prospecting in the area of the potential ore clusters.

ИССЛЕДОВАНИЕ ЭФИРНОГО МАСЛА ШИШЕК КЕДРОВОГО СТЛАНИКА (PINUS PUMILA (PALL.) REGEL)

Cedar elfin Pinus pumila (Pall.) Regel of the pine family – Pinaceae is a widespread plant in Eastern Siberia and the Russian Far East. Most studies of cedar elfin are devoted to the study of needles and woody greenery. Pine cones remain a poorly studied object, the chemical composition of which requires serious study to determine the prospects for further use. The aim of the work is to study the component composition and essential oil content in pine cones. To study the essential oil, samples of pine cones were harvested on the territory of the Magadan region, the Olsky urban district. The determination of the essential oil content in cones was carried out according to the methods of the State Pharmacopoeia of the XV edition. The component composition of the essential oil was determined using an Agilent 7890A gas chromatograph with a mass-selective detector. As a result of the study, it was found that a Clevenger device should be used to determine the content of essential oil in pine cones. The content of essential oil in cones is highest in July, slightly less in August, and in September there is no essential oil in the raw material. It has been established that July is the most favorable period for harvesting pine cones. The main component of the essential oil of pine cones is limonene. The proportion of the main component of the essential oil of pine cones, limonene, is higher in July, and the proportion of the undesirable component 3–karen increases in essential oil in August. The high content of limonene in the essential oil samples is a good prerequisite for further research and development of finished products.

СРАВНИТЕЛЬНЫЙ АНАЛИЗ ДОБЫЧИ ДРАГОЦЕННЫХ МЕТАЛЛОВ В МУНИЦИПАЛЬНЫХ ОКРУГАХ МАГАДАНСКИЙ ОБЛАСТИ В 2021-2023 ГОДАХ

The author of the article provides comparative data on the production of precious metals in the context of municipal districts of the Magadan region for the period 2021-2023, determined the share of production of municipal districts in the total volume of production in the Magadan region in 2023, and also considered the shares of gold production from ore and alluvial deposits in municipal districts of the Magadan region in 2023, the main deposits for their production have been identified. The main directions for the development of mineral extraction and their impact on the socio-economic development of the region are also outlined.

АНАЛИЗ МИНЕРАЛЬНО-СЫРЬЕВОЙ БАЗЫ И ДИНАМИКИ ДОБЫЧИ ДРАГОЦЕННЫХ МЕТАЛЛОВ В МАГАДАНСКИЙ ОБЛАСТИ

The authors of the article provides data on the balance reserves of mineral resources of the Magadan region, gives characteristics of the main deposits of precious metals that form the mineral resource base of the Magadan region, analyzes the dynamics of the production of precious metals (gold, silver) in the Magadan region for the period 2021-2023, highlights shares of precious metals extraction from ore and placer deposits.

Cardiohemodynamic responses and heart rate variability following an active orthostatic test among male residents of the North with different NOS3 (rs2070744) genotypes

AIM: This study explored associations between the -786TC (rs2070744) genetic polymorphism of the NOS3 gene and the main indices of systemic hemodynamics and heart rate variability following an active orthostatic test in men living in the North. MATERIAL AND METHODS: Eighty-three healthy men aged 33.5±1.5 yеаrs on average, who were permanent residents of the Magadan Region, comprised the sample. The participants underwent both resting and active orthostatic testing modes. Cardiovascular system variables were recorded using an automatic tonometer. Hemodynamic indices were then calculated. Short-term heart rate variability in frequency and spectral areas was simultaneously measured using the Varikard hardsoft complex unit. Genotyping was conducted using polymerase chain reaction. The sample was then divided into two groups: Group 1 consisted of homozygotes with the TT genotype (n=34), while Group 2 comprised carriers of the NOS3*C allele variant (genotypes TC+CC) associated with reduced nitric oxide production (n=49). RESULTS: By examining the complex vasomotor, chrono- and inotropic reactions of hemodynamic and heart rate variables during the active orthostatic test, we were able to discern unique patterns in the response of the two groups under study. Men in Group 1 demonstrated an elevated cardiac output response during orthostatic changes, while maintaining consistent vascular resistance values. This was accompanied by a shift towards sympathetic autonomic activity and an increase in the very low-frequency component of heart rate variability. In Group 2, individuals with sympathetic insufficiency and increased vascular resistance during the orthostatic test showed a 35% increase in the low-frequency component of the cardiac rhythm reflecting the importance of this indicator as a stimulator of blood pressure rhythm fluctuations mediated by baroreflex mechanisms. CONCLUSION: Our findings suggest that men lacking the NOS3*С allele variant in their genotype demonstrate more favorable responses to the active orthostatic test. This may reflect higher level of cardiovascular functional reserves. The 786TC (rs2070744) polymorphism of the NOS3 gene can be considered as a marker of cardiohemodynamic status and autonomic regulations during functional exercise, such as an active orthostatic test.

The processes of river runoff formation in the permafrost zone permafrost under mining activity in river valleys (on the example of gold mining in the Susuman river basin, the Magadan region)

The processes of river runoff formation in the permafrost zone permafrost under mining activity in river valleys (on the example of gold mining in the Susuman river basin, the Magadan region)

Results of salmon fishery in Magadan Region in 2023

Results of salmon fishery in Magadan Region in 2023

Umbilicaria aprina and U. rhizinata (Umbilicariaceae, lichenized Ascomycota) in Russia

The distribution of Umbilicaria aprina and U. rhizinata in Russia was revised basing on morphological and molecular-phylogenetic data. Umbilicaria aprina is new to Alexandra Land Island (Franz Josef Land Archipelago), Sverdrup Island (Taimyr Dolgano-Nenets District), the republics of Altai, North Ossetia-Alania and Sakha-Yakutia. Umbilicaria rhizinata is new to the republics of Tyva and Buryatia, Putorana Plateau, Kamchatka Peninsula, and the Magadan Region and is therefore reported for the first time to the Asian Subarctic. New localities of the species in other regions are cited. The ITS\5.8S phylogenetic tree supports the distinctness of U. aprina and U. rhizinata. The distribution map is drawn and patterns of distribution of two species are discussed. Umbilicaria aprina occurs in the high Arctic between 74°N and 81°N, whereas the northernmost locality of U. rhizinata is in the vicinity of Norilsk on the Putorana Plateau (ca. 70°N). In mountains U. aprina grows at higher maximal elevations compared to U. rhizinata.

ANALYSIS OF PHYSICAL DEVELOPMENT BASED ON THE BODY MASS INDEX IN MALE ADOLESCENTS OF MAGADAN REGION

Introduction. Human body morphological structure is a convenient and informative describer of individual development and condition. The study analyzed the indicators of the body physique in reliance on the body mass index in male adolescents of Magadan Region. Materials and Methods. Two hundred and eight male adolescents permanently residing in the territory of Magadan Region were examined. The sample made up three groups according to the body mass index: Group 1 was for adolescents with a body mass deficit; Group 2 was normal body mass subjects, and Group 3 was overweight examinees. By using common methods, we studied basic anthropometric indicators with further calculation of the body component composition and specific indices. Results. Resulting from the research we could refer 23% of the examined adolescents in Magadan Region to those having body mass deficit, 63% of the sample were people with normal body mass, and 15% of the surveyed subjects were diagnosed with excess body mass. Interestingly, there is a growth of BMI among overweight adolescents occurs owing equally to fat, muscle, and bone components. Conclusion. The conducted research has shown quite good physical condition experienced by adolescent examinees: the values of fat, muscle, and bone components could be referred as norms despite the observed overweight and a negative growth in the waist circumference index. The results contribute to the understanding of necessity of a wider range of physical characteristics for assessing excess body mass, including indicators of body component using the bioimpedance method with further calculation of fat, muscle, and bone indices.