scholarly journals Current prospects of industrial use of valuable fish species in Lakes Kuito system (catchment area of the White sea)

2020 ◽  
Vol 2020 (2) ◽  
pp. 16-25
Author(s):  
Vyacheslav Anatolievich Shirokov ◽  
Andrey Pavlovich Georgiev ◽  
Nadezhda Stepanovna Cherepanova
Keyword(s):  
Fish Species ◽  
Field Studies ◽  
Research Centre ◽  
State University ◽  
Current State ◽  
Structure Of Communities ◽  
Annual Total ◽  
Academy Of Sciences ◽  
Water Problems

Based on the results of our own field studies (Northern Research Institute of Fisheries in Petrozavodsk State University (formerly SevNIORH), Northern Water Problems Institute of the Karelian Research Centre of the Russian Academy of Sciences) and taking into account the available literature and archival information, we studied the long-term dynamics of catches of valuable fish species (salmon, lake char, whitefish, vendace) in Lake Kuito, assessed the current state of the populations and new biology data are provided. It was established that after the regulation of Lower and Middle Kuyto as a whole, changes in the structure of communities of valuable fish species against the background of underdeveloped fishing are not very noticeable, the commercial part of ichthyocenosis remains quite stable. The cessation of centralized fishing has created the conditions for amateur and paid recreational fishing, focused mainly on catching the most valuable fish species: salmon, pale, whitefish, vendace in the conditions of free fishing, existing at present. In the conditions of free fishing, it is proposed to amend the existing fishing rules in terms of establishing fishing measures for salmon (57 cm), fallow (40 cm), whitefish (20 cm) and changing the fishing measure to vendace (9 cm). At the present stage, in the conditions of the Kuito system (including tributaries), in terms of the developed forecasting the volumes of annual total allowable catches of valuable fish species have been determined in the following limits: salmon – 1 ton, lake char – 1 ton, whitefish – 5 ton, vendace – 40–50 ton. The boundary position of the Kuito lakes contributes to the tourist attractiveness and creating a modern tourist complex of natural significance

scholarly journals Constraints and flexibility in mammalian social behaviour: introduction and synthesis

2013 ◽  
Vol 368 (1618) ◽  
pp. 20120337 ◽  
Author(s):  
Peter M. Kappeler ◽  
Louise Barrett ◽  
Daniel T. Blumstein ◽  
Tim H. Clutton-Brock
Keyword(s):  
Social Behaviour ◽  
Social Systems ◽  
50Th Anniversary ◽  
Field Studies ◽  
Social Constraints ◽  
Behavioural Flexibility ◽  
Theme Issue ◽  
Current State ◽  
Main Components

This paper introduces a Theme Issue presenting the latest developments in research on the interplay between flexibility and constraint in social behaviour, using comparative datasets, long-term field studies and experimental data from both field and laboratory studies of mammals. We first explain our focus on mammals and outline the main components of their social systems, focusing on variation within- and among-species in numerous aspects of social organization, mating system and social structure. We then review the current state of primarily ultimate explanations of this diversity in social behaviour. We approach the question of how and why the balance between behavioural flexibility and continuity is achieved by discussing the genetic, developmental, ecological and social constraints on hypothetically unlimited behavioural flexibility. We introduce the other contributions to this Theme Issue against this background and conclude that constraints are often crucial to the evolution and expression of behavioural flexibility. In exploring these issues, the enduring relevance of Tinbergen's seminal paper ‘On aims and methods in ethology’, with its advocacy of an integrative, four-pronged approach to studying behaviour becomes apparent: an exceptionally fitting tribute on the 50th anniversary of its publication.

scholarly journals Род Crataegus L. (Rosaceae) во флоре Нахчыванской Автономной Республики Азербайджана

2007 ◽  
Vol 7 (3) ◽  
pp. 32-42
Author(s):  
A.M. Ibrahimov
Keyword(s):  
Comparative Analysis ◽  
High Altitude ◽  
Field Data ◽  
State University ◽  
National Academy Of Sciences ◽  
Natural Conditions ◽  
Current State ◽  
Academy Of Sciences ◽  
Autonomous Republic ◽  
Azerbaijan National Academy

<p>The article presents the research of genus <em>Crataegus</em> L. diversity in the territory of the Nakhchivan Autonomous Republic. We provided comparative analysis of specimens from the herbarium of the Institute of Botany of Azerbaijan National Academy of Sciences, Institute of Bioresources of Nakhchivan Section of Azerbaijan National Academy of Sciences, and Nakhchivan State University to clarify the current state of the genus <em>Crataegus</em> L. in the flora of the Nakhichivan Autonomous Republic. Based on the analysis of field data and collected herbarium during 2004-2015 and literature data we revealed 22 species of the genus in the flora of the Nakhichevan Autonomous Republic at present time. We also fixed that some 17 wildgrowing species occur in natural conditions, among them <em>Crataegus chlorocarpa</em> Lenne et C. Koch, <em>C. ferganensis</em> Pojark., <em>C. sanguinea</em> Pall., <em>C. songarica</em> C. Koch, <em>C. turkestanica</em> Pojark. were introducted into the culture and used in the landscaping of parks and gardens. We also considered the data on synonyms species, patterns of distribution among high-altitude zones, habitats as well as period of flowering and fruiting.</p>

scholarly journals Current state of peatland soils as an effect of long-term drainage – preliminary results of peatland ecosystems investigation in the Grójecka Valley (central Poland)

2016 ◽  
Vol 67 (1) ◽  
pp. 3-9 ◽  
Author(s):  
Bartłomiej Glina ◽  
Piotr Gajewski ◽  
Zbigniew Kaczmarek ◽  
Wojciech Owczarzak ◽  
Paweł Rybczyński
Keyword(s):  
Monitoring Program ◽  
Mining Industry ◽  
Soil Classification ◽  
Field Studies ◽  
Open Pit ◽  
Open Pit Mining ◽  
Central Poland ◽  
Current State ◽  
Mineral Soils

AbstractUnderstanding the effect of long-term drainage of peatland areas is helpful in future peatland management and regulations of water conditions. The aim of this work was to assess the current state of fen peatland soils in the Grójecka Valley (eastern part of the Wielkopolskie voivodeship, central Poland), affected by long-term agricultural use (pastures, meadows) since the 1960s and potentially by lignite open pit mining industry (KWB Konin) since 1980s. Field studies were carried out in 2015 in selected fen peatland areas. Soil material for laboratory analysis was collected from genetic horizons from four soil profiles. The surface horizons of studied organic and organo-mineral soils were built with well-developed moorsh material. They were classified as medium moorshiefied – MtII (profile 1, 3 and 4) and strongly moorshiefied – MtIII (profile 2). Obtained results of physical and physico-chemical analysis indicate that long-term peatland utilization connected with potential impact of the lignite mining, transformed mainly the upper horizons of studied organic and organo-mineral soils. However, despite obvious strong human impact on peatlands ecosystems, we cannot exclude the climate variables, what should be confirmed by long-term monitoring program. Furthermore, presented paper indicated that new subtype moorsh-muddy soils (in Polish: gleby murszowo-mułowe) within the type of gleyic soils should be implemented in the next version of Polish Soil Classification.

scholarly journals Formation and development of historical science in the Belarusian State University (1920–50s)

2021 ◽  
pp. 7-18
Author(s):  
Alіaksandr G. Kakhanouskі ◽  
Aleh A. Yanouski
Keyword(s):  
Media Studies ◽  
Professional Activity ◽  
State University ◽  
Historical Science ◽  
Political Factors ◽  
Distinctive Features ◽  
Current State ◽  
Wide Range ◽  
The University ◽  
Academy Of Sciences

The article examines the century long way of formation and development of historical science at the Belarusian State University. It is concluded that from the very beginning of the university’s activity, the most important directions of historical research were formed in it. A special place was occupied by Belarusian studies, which became the sphere of professional activity of both historians and archaeologists, ethnographers, source researchers, historiographers, and archivists. At the same time, Russian and Slavic history was also deeply studied and since the 1920s. Belarusian antiquity, media studies, novistics et cetera has originated. It is noted that such a wide range of studies was largely determined by the fact that the university had to train specialists in the relevant fields of knowledge. Historians of BSU initiated the creation of separate research societies and institutions, including the Institute of Belarusian Culture and the Belarusian Academy of Sciences. Highlighted the stages of development of university historical science, which were characterised by their distinctive features and were determined by socio-political factors. The current state of the historical science of BSU is outlined.

scholarly journals Long-Term Trends in the Structure and Dynamics of the Fish Communities in Buško Blato Reservoir

2020 ◽  
Vol 78 (2) ◽  
pp. 69-78
Author(s):  
Aldijana Mušović ◽  
Rifat Škrijelj ◽  
Mahir Gajević ◽  
Belma Kalamujić Stroil ◽  
Adi Vesnić ◽  
...  
Keyword(s):  
Fish Species ◽  
Ecological Factors ◽  
Lepomis Gibbosus ◽  
Tinca Tinca ◽  
Structure And Dynamics ◽  
Current State ◽  
Long Term Trends ◽  
Endemic Fish ◽  
First Time

AbstractBuško Blato Reservoir, the third largest hydro accumulation in Europe, is situated in the south-eastern part of the karstic Livanjsko Polje Valley. This aquatic ecosystem is distinguished by a very rich ichthyofauna and the presence of four endemic fish species. Numerous studies focus on ichthyological researches of Buško Blato Reservoir. Its ichthyofauna has been exposed to changes in ecological factors, which in turn reflected on the structure and composition of fish populations. The main objective of this paper was to assess the current state and predict future trends in the ichthyofauna structure and dynamics based on the field data and comprehensive analyses of literature data. The results of the research indicated the presence of 11 fish species from four families, which is the largest number of fish species ever recorded in this ecosystem. Sander lucioperca, Lepomis gibbosus, Pseudorasbora parva and Tinca tinca were recorded for the first time in this ecosystem, while some previously recorded species were not found. The results of the analyses clearly indicate the presence of natural interspecific competition and significant level of threats to the endemic fish species caused by human activities.

scholarly journals Some words about Tatiana Dmitrievna Belanovskaya

2018 ◽  
Vol 7 (3) ◽  
pp. 119-126
Author(s):  
Anton Igorevich Murashkin ◽  
Igor Lvovich Tikhonov ◽  
Ekaterina Georgievna Matveeva ◽  
Valentina Ivanovna Beliaeva
Keyword(s):  
Eastern Europe ◽  
Field Studies ◽  
100Th Anniversary ◽  
Educational Activity ◽  
State University ◽  
Postgraduate Studies ◽  
The 1960S ◽  
Doctoral Dissertations ◽  
The University

September 10, 2018 marks the 100th anniversary of the birth of Tatyana Dmitrievna Belanovskaya (1918-2010) - who was one of the first graduates of Archaeology Department of Leningrad State University. She graduated from the University in 1941 and completed postgraduate studies at Archaeology Department in 1948. From 1948 until 1988 T.D. Belanovskaya taught at the same Department. The most important courses made by her were Prehistory and the basics of ethnography, The Basics of Archeology, as well as special courses on Neolithic, Eneolithic and numerous regional courses in archeology of Western, Central and Eastern Europe. 52 master theses were written under the guidance of T.D. Belanovskaya; many of the graduates defended doctoral dissertations. Thanks to her educational activity, recent studying of Neolithic was formed in Russia and the countries of the former Soviet Unio n. Tatiana Dmitrievna conducted long-term field studies of the settlement of Rakushechny Yar - the unique multilayer site which includes Neolithic and Eneolithic materials. The stratigraphy of the site is a kind of reference standard for the territory of the South of Eastern Europe while the studying of the oldest pottery from the lower layers allows ones to solve the problem of neolithization of the region. The paper includes excerpts from the interview with Tatyana Dmitrievna Belanovskaya and memoirs of her students graduated from Archaeology Department of Leningrad State University in the 1960s and now working at the Department.

CURRENT STATE AND DEVELOPMENT PERSPECTIVES OF THE CASPIAN SPRAT FISHERIES

2018 ◽  
pp. 69-75
Author(s):  
Tatiana Vasilievna Pomogaeva ◽  
Aliya Ahmetovna Aseinova ◽  
Yuriy Aleksandrovich Paritskiy ◽  
Vjacheslav Petrovich Razinkov
Keyword(s):  
Food Item ◽  
Growth Potential ◽  
North West ◽  
Marine Fishery ◽  
The North ◽  
Current State ◽  
West Part ◽  
Eggs And Larvae ◽  
Intensive Growth

The article presents annual statistical data of the Caspian Research Institute of Fishery. There has been kept track of the long term dynamics of the stocks of three species of Caspian sprat (anchovy, big-eyed kilka, sprat) and investigated a process of substituting a food item of sprats Eurytemora grimmi to a small-celled copepod species Acartia tonsa Dana. According to the research results, there has been determined growth potential of stocks of each species. Ctenophoran-Mnemiopsis has an adverse effect on sprat population by eating fish eggs and larvae. Ctenophoram - Mnemiopsis is a nutritional competitor to the full-grown fishes. The article gives recommendations on reclamation of stocks of the most perspective species - common sprat, whose biological characteristics helped not to suffer during Ctenophoram outburst and to increase its population during change of the main food item. Hydroacoustic survey data prove the intensive growth of common sprat biomass in the north-west part of the Middle Caspian. According to the results of the research it may be concluded that to realize the volumes of recommended sprat catch it is necessary to organize the marine fishery of common sprat at the Russian Middle Caspian shelf.

SEEDING DENSITY OF DIFFERENT FISH SPECIES IN POLYCULTURE

2017 ◽  
pp. 74-79
Author(s):  
Yuriy Borisovich Lvov
Keyword(s):  
Fish Species ◽  
Silver Carp ◽  
Seeding Density ◽  
Habitat Conditions ◽  
Method Of Calculation ◽  
Fish Breeding ◽  
Trophic Preferences ◽  
Breeding Zone ◽  
Practical Progress

The article touches upon the principles, biological basics and practical progress of introduction of specific and age polyculture of fishes. Using the results of the analysis of literary and long-term native data, there has been offered the gradation of 12 fish species from different families by resistance to habitat conditions. Crucian ( Carassius gibelio ) has been chosen as the most sustainable object of cultivation. There has been taken an attempt to calculate the number of seeding different fish species in polyculture taking into account their physiological features is made. Subject to specific physiological features of the studied species, there was carried out recalculation of their natural reproductive performance in different fish-breeding zones, which is traditionally carried out for a carp ( Cyprinus carpio ). In particular, in the second fish-breeding zone with area of 1 hectare it is possible to breed 120 kg of carp, or 150 kg of crucian, or 75 kg of silver carp ( Hypophthalmichthys ). Overall productivity is made up of a share of fishes in polyculture, but taking into account tolerance of species, it can be lower than productivity calculated for carp. The method of calculation and formulas which give the chance to determine seeding density of fish species for breeding in polyculture have been offered. This technique makes it possible to use trophic preferences and consider tolerance of each species to the conditions of breeding areas.

2018 Nobel Economics Prize: Integrating Climate Change Measures into Sustainable Economic Growth

2018 ◽  
Vol 34 (4) ◽  
Author(s):  
Nguyen Thi Thuc An ◽  
Dau Kieu Ngoc Anh
Keyword(s):  
Climate Change ◽  
Economic Growth ◽  
Endogenous Growth ◽  
Environmental Issues ◽  
Growth Theory ◽  
Endogenous Growth Theory ◽  
Technological Advances ◽  
Academy Of Sciences ◽  
Sustainable Economic Growth

The 2018 Nobel Economics Prize was awarded to two American economists - William D. Nordhaus and Paul M. Romer - who designed methods for better assessing environmental issues and technological advances on growth. This year’s Laureates, Nordhaus was the first person to create an intergrated model to assess interactions between society and nature and Romer laid the foundation for what is now called endogenous growth theory. According to the Swedish Royal Academy of Sciences, these two macroeconomists’ research have helped “significantly broaden the scope of economic analysis by constructing models that explain how the market economy interacts with nature and knowledge” which integrates climate change measures into long-term sustainable economic growth. Keywords Nobel in economics, William D. Nordhaus, Paul M. Romer, climate change, endogenous growth theory, economic growth References [1] Y Vân (2018), “Lý lịch 'khủng' của hai nhà khoa học vừa giành giải Nobel Kinh tế 2018”, Vietnambiz, đăng tải ngày 08/10/2018, https://vietnambiz.vn/ly-lich-khung-cua-hai-nha-khoa-hoc-vua-gianh-giai-nobel-kinh-te-2018-95776.html[2] Jonas O. Bergman, Rich Miller (2018), “Nordhaus, Romer Win Nobel for Thinking on Climate, Innovation”, đăng tải ngày 8/10/2018, https://www.bloomberg.com/news/articles/2018-10-08/nordhaus-romer-win-2018-nobel-prize-in-economic-sciences [3] Antonin Pottier (2018), “Giải Nobel” William Nordhaus có thật sự nghiêm túc?”, Nguyễn Đôn Phước dịch, đăng tải ngày 11/10/2018, http://www.phantichkinhte123.com/2018/10/giai-nobel-william-nordhaus-co-that-su.html[4] Thăng Điệp (2018), “Giải Nobel kinh tế 2018 về tay hai người Mỹ”, đăng tải ngày 8/10/2018, http://vneconomy.vn/giai-nobel-kinh-te-2018-ve-tay-hai-nguoi-my-20181008185809239.htm[5] Lars P. Syll (2018), “Cuối cùng - Paul Romer cũng có được giải thưởng Nobel”, Huỳnh Thiện Quốc Việt dịch, đăng tải ngày 14/10/2018, http://www.phantichkinhte123.com/2018/10/cuoi-cung-paul-romer-cung-co-uoc-giai.html[6] Phương Võ (2018), “Nobel Kinh tế 2018: Chạm tới bài toán khó của thời đại”, đăng tải ngày 9/10/2018, https://nld.com.vn/thoi-su-quoc-te/nobel-kinh-te-2018-cham-toi-bai-toan-kho-cua-thoi-dai-20181008221734228.htm[7] Đông Phong (2018), “Nobel Kinh tế cho giải pháp phát triển bền vững và phúc lợi người dân”, đăng tải ngày 8/10/2018, https://news.zing.vn/nobel-kinh-te-cho-giai-phap-phat-trien-ben-vung-va-phuc-loi-nguoi-dan-post882860.html[8] Thanh Trúc (2018), “Giải Nobel kinh tế 2018: Thay đổi tư duy về biến đổi khí hậu”, https://tusach.thuvienkhoahoc.com/wiki/Gi%E1%BA%A3i_Nobel_kinh_t%E1%BA%BF_2018:_Thay_%C4%91%E1%BB%95i_t%C6%B0_duy_v%E1%BB%81_bi%E1%BA%BFn_%C4%91%E1%BB%95i_kh%C3%AD_h%E1%BA%ADu[9] Cẩm Anh (2018), “Nobel kinh tế 2018: Lời giải cho tăng trưởng kinh tế bền vững”, đăng tải ngày 11/10/2018, http://enternews.vn/nobel-kinh-te-2018-loi-giai-cho-tang-truong-kinh-te-ben-vung-137600.html.

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