scholarly journals Bioresource capacity of the black sea and its development by the national fishery in the XX and XXI centuries

2019 ◽  
Vol 89 (11) ◽  
pp. 1105-1119
Author(s):  
Dmitry Ya. Fashchuk
Keyword(s):  
Black Sea ◽  
Marine Pollution ◽  
Chemical Pollution ◽  
The Black Sea ◽  
Mnemiopsis Leidyi ◽  
Commercial Fish ◽  
Dynamics Of Population ◽  
History Of ◽  
Natural Dynamics ◽  
Catch Composition

In this paper, the history of the formation, dynamics of structure, and species composition of the main objects of the national fishery in the Black Sea from the moment of the fall of the Crimean Khanate in 1783 up to today are analyzed, as well as the structure of commercial biological resources of the sea formed throughout the geological history of development of the Ponto-Caspian Basin (more than 30 million years). The geography and catch composition, scales, and methods of fish harvesting in the twentieth and twenty-first centuries are examined. The stages of intensification and reduction of fish harvesting success and the causes of these fluctuations (natural dynamics of population abundance, press of predatory species, hydrotechnical construction, marine pollution, overfishing, poaching) are identified. The author shows that at the end of the twentieth century, the Russian fishing industry entered a depressed state, while the other Black Sea countries increased their average annual total catch. At the same time, starting at the beginning of the twenty-first century, due to the lessening of press of warty comb jelly (Mnemiopsis leidyi), a decrease in the level of oil and chemical pollution of coastal and shelf waters in the northern Black Sea, and a reduction in industrial production on the seacoast and watershed territories, the ecological situation in the Russian territorial waters improved significantly and many formerly commercial fish populations started to recover.

The Black Sea kalkan and the turbot, its closest relative

2021 ◽  
Author(s):  
A.N. Khanaychenko ◽  
◽  
V.E. Giragosov ◽  
Keyword(s):  
Black Sea ◽  
Genetic Research ◽  
Fish Farming ◽  
Field Studies ◽  
Scophthalmus Maximus ◽  
The Black Sea ◽  
Research Experience ◽  
Commercial Fish ◽  
History Of ◽  
Turbot Scophthalmus Maximus

This book resumes many years of research experience of the authors and their colleagues, as well as numerous European and Chinese experimental and field studies on the developmental biology and physiology of valuable commercial fish, the Black Sea kalkan (Scophthalmus maeoticus) and the Atlantic turbot (Scophthalmus maximus), closest relatives and, according to modern genetic research, presumably, one species. The history of formation of currently powerful industrial turbot aquaculture presented in this book is based on the analysis of numerous scientific and applied research on turbot mariculture and economic features of formation of its European, in particular, Spanish and Chinese clusters. Recommended for researchers – biologists and biotechnologists, university professors, students of biological and biotechnology specialties, specialists in aquaculture, fish farming, ecology, as well as for a wider range of readers, managers, economists and operators of aquaculture enterprises.

Features of Development of the Black Sea Village in 1920s: Materials from the Black Sea Party Obkom Fond in the Documentation Center for Contemporary History of the Krasnodar Krai

2018 ◽  
pp. 1128-1136
Author(s):  
Olga V. Bershadskaya ◽  
Keyword(s):  
Rural Communities ◽  
Black Sea ◽  
Distinctive Feature ◽  
Agricultural Production ◽  
Political Development ◽  
The Black Sea ◽  
Contemporary History ◽  
Krasnodar Krai ◽  
Geographical Environment ◽  
History Of

The article studies features of socio-economic and socio-political development of the Black Sea village in 1920s. Documents from the fond of the Black Sea District Committee (Obkom) of the RCP (b) -VKP (b) stored in the Center for Documentation of the Modern History of the Krasnodar Krai allow not only to reconstruct the developments in the Black Sea village in the NEP days, but also to understand the nature of its evolution. Uniqueness of the Black Sea village was greatly determined by its geographical environment. There had formed a sectoral makeup of agricultural production: fruit-farming, viticulture, tobacco growing. Rugged relief forced peasants to form holdings or farms; therefore rural communities were rare. Its another distinctive feature was its motley national composition. Over 50 ethnic groups inhabited the district, among most numerous were the Russians, the Ukrainians, the Armenians, and the Greeks. In the first years of the NEP, the main tasks facing district authorities were to develop ‘high-intensity’ industries and to shape local peasant farms into food base for cities and resorts. While tackling these tasks, they had to deal with shortages of land and poor communications and to bring lease relations and work-hands employment up to scratch. The situation was complicated by socio-political inertia of rural population of the district that came from the absence of community tradition. Study of the documents from the fond of the Black Sea party obkom shows that local authorities were well aware of the peculiarity of their region, but in most cases had to follow guidelines set ‘from above’ to introduce all-Russian standards.

Population development of the invader ctenophore Mnemiopsis leidyi , in the Black Sea and in other seas of the Mediterranean basin

2001 ◽  
Vol 139 (3) ◽  
pp. 431-445 ◽  
Author(s):  
Shiganova T. ◽  
Mirzoyan Z. ◽  
Studenikina E. ◽  
Volovik S. ◽  
Siokou-Frangou I. ◽  
...  
Keyword(s):  
Black Sea ◽  
Mediterranean Basin ◽  
The Black Sea ◽  
Mnemiopsis Leidyi ◽  
Population Development ◽  
The Mediterranean ◽  
The Mediterranean Basin

Anthropogenic Impact on the Lithodynamics of the Coastal Zone of the Southern and Western Black Sea Coast (Review)

2021 ◽  
Author(s):  
T. V. Efremova ◽  
Yu. N. Goryachkin ◽  
◽  
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
Bottom Sediments ◽  
Anthropogenic Impact ◽  
River Flow ◽  
The Black Sea ◽  
Negative Consequences ◽  
Coastal Zones ◽  
Natural Dynamics ◽  
The Impact

Anthropogenic impact on lithodynamics of the coastal zone changes the natural dynamics of bottom sediments, which leads to increased abrasion and swelling of beaches, activation of landslide processes creating a threat of destruction of the coastal infrastructure. The article aims at providing an overview of the scientific literature on the anthropogenic impact on lithodynamics of the coastal zone of the southern and western coasts of the Black Sea (shores of Romania, Bulgaria and Turkey). The work shows that with all the differences in the natural conditions of the coastal zones of these countries the types of anthropogenic effects they undergo are almost the same. These include: hydrotechnical construction without regard to the impact on the neighbouring coast sections; reduction of solid river flow due to river regulation by reservoirs; construction of capital facilities directly on the beaches; illegal extraction of sand from beaches and river beds; dredging with sale of the extracted material to construction companies; covering of cliffs by various structures; destruction of coastal dunes, etc. The main negative consequences of these actions are reflected in disruption of natural dynamics and shortages of bottom sediments, changes in the coastline, reduced aesthetic attractiveness and accessibility of shores, destruction of coastal ecosystems. The article also provides information on the legislation of these countries regarding environmental management in the coastal zone

The northern Black Sea and North Caucasus

2018 ◽  
Author(s):  
Valenina Mordvinceva ◽  
Sabine Reinhold
Keyword(s):  
Black Sea ◽  
Iron Age ◽  
Seventh Century ◽  
The Black Sea ◽  
North Caucasus ◽  
The North ◽  
Long Time ◽  
History Of ◽  
Northern Shore ◽  
Greek Colonization

This chapter surveys the Iron Age in the region extending from the western Black Sea to the North Caucasus. As in many parts of Europe, this was the first period in which written sources named peoples, places, and historical events. The Black Sea saw Greek colonization from the seventh century BC and its northern shore later became the homeland of the important Bosporan kingdom. For a long time, researchers sought to identify tribes named by authors such as Herodotus by archaeological means, but this ethno-deterministic perspective has come under critique. Publication of important new data from across the region now permits us to draw a more coherent picture of successive cultures and of interactions between different parts of this vast area, shedding new light both on local histories and on the role ‘The East’ played in the history of Iron Age Europe.

In the Search of an Appropriate Legal Framework to Prevent Environmental Risks Caused by Navigation in the Black Sea

2017 ◽  
Vol 19 (2-3) ◽  
pp. 194-230
Author(s):  
Gabriela A. Oanta
Keyword(s):  
Black Sea ◽  
International Organizations ◽  
Marine Pollution ◽  
Regional Cooperation ◽  
Legal Framework ◽  
Environmental Risks ◽  
The Black Sea ◽  
Trade Routes ◽  
International Responsibility ◽  
The One

This article addresses the legal framework pertaining to navigation in the Black Sea (including the Turkish Straits System) – which is currently one of the busiest trade routes globally – and its implications for the protection and preservation of the marine environment in this region. This framework is a comprehensive and complex system that is based, on the one hand, upon norms established by different global diplomatic conferences and international organizations that are therefore also applicable to the Black Sea and its coastal States; on the other hand, the regional cooperation fora for the Black Sea have also created specific standards for the region. In addition, the implications of the delimitation of maritime areas in the Black Sea and the international responsibility of States in the field of marine pollution caused by navigation will also be examined.

scholarly journals Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean

2019 ◽  
Author(s):  
Anastasia G. Yanchilina ◽  
Celine Grall ◽  
William B. F. Ryan ◽  
Jerry F. McManus ◽  
Candace O. Major
Keyword(s):  
Sea Level ◽  
Black Sea ◽  
Global Ocean ◽  
The Black Sea ◽  
Marmara Sea ◽  
Independent Data ◽  
Relative Sea Level ◽  
Mis 3 ◽  
History Of ◽  
Marine Isotope Stage 3

Abstract. The Marine Isotope Stage 3 (MIS 3) is considered a period of persistent and rapid climate and sea level variabilities during which eustatic sea level is observed to have varied by tens of meters. Constraints on local sea level during this time are critical for further estimates of these variabilities. We here present constraints on relative sea level in the Marmara and Black Sea regions in the northeastern Mediterranean, inferred from reconstructions of the history of the connections and disconnections (partial or total) of these seas together with the global ocean. We use a set of independent data from seismic imaging and core-analyses to infer that the Marmara and Black Seas remained connected persistent freshwater lakes that outflowed to the global ocean during the majority of MIS 3. Marine water intrusion during the early MIS-3 stage may have occurred into the Marmara Sea-Lake but not the Black Sea-Lake. This suggests that the relative sea level was near the paleo-elevation of the Bosporus sill and possibly slightly above the Dardanelles paleo-elevation, ~80 mbsl. The Eustatic sea level may have been even lower, considering the isostatic effects of the Eurasian ice sheet would have locally uplifted the topography of the northeastern Mediterrranean.

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