scholarly journals Content of toxic substances in the deep-sea and coastal areas of the Black Sea off the Crimean Peninsula in spring — autumn, 2019

Trudy VNIRO ◽  
2020 ◽  
Vol 181 ◽  
pp. 187-205
Author(s):  
Т.О. Barabashin ◽  
◽  
I.V. Korablina ◽  
L.F. Pavlenko ◽  
G.V. Skripnik ◽  
...  
Keyword(s):  
Organochlorine Pesticides ◽  
Black Sea ◽  
Bottom Sediments ◽  
Deep Sea ◽  
Single Case ◽  
Dry Weight ◽  
The Black Sea ◽  
Western Coast ◽  
Crimean Peninsula ◽  
The Crimean Peninsula

Based on the results of 4 surveys conducted in the Black Sea off the Crimean Peninsula in spring, summer and autumn, 2019, an assessment was made of the water and bottom sediments polluted with petroleum components, PAH, organochlorine pesticides, PCBs, heavy metals, arsenic and caesium 137. In the water column of the deep-seafregion and the western coast of the Crimean Peninsula, hydrocarbon concentrations ranged from <0.015 to 0.39 mg/l. Resins and asphaltenes were found in the surface waters of the eastern Crimea only in summer and autumn, and made up 7.3–40 % of the total oil components. The concentrations of petroleum products in the studied sediments varied from <0.02 to 0.96 g/kg of dry weight. The portion of resins and asphaltenes was in the range of 15–30 %. Total concentrations of individual PAHs in the studied waters varied from 7.04 to 96.01 ng/l, in bottom sediments they ranged from 33 to 366 mcg/kg of dry weight. Benzo(a)pyrene, an indicator for PAHs contamination, made up 0.3–3.4 % in water and 0.5–1.1 % in bottom sediments on the amount of total PAHs. No excess of MPC for naphthalene and benzo(a) pyrene was found in the water. MPC for organochlorine pesticides and PCBs set for the fishery waters (MPCf) were also not exceeded. A single case of 2.2 times exceeded MPCf for iron was recorded in the deep-sea region off the cape Ayu-Dag. In all the seasons, in deep-sea of the Black Sea, an excess of MPCf for manganese was detected, which is not associated with anthropogenic pollution, but with the accumulation of manganese in the hydrosulfuric water layer. Higher concentrations of copper, lead, cadmium, zinc, nickel and arsenic were observed in bottom sediments of the deep-sea stretch between Sevastopol Bay and Cape Meganom. As to the bottom sediments of the shelf, the highest concentrations of chromium, mercury, iron and manganese were found in Feodosiysky Bay, Lake Donuzlav and off Cape Sarych.

scholarly journals Content of plutonium radionuclides in the bottom sediments of the salt lakes of the Crimean Peninsula in comparison with coastal areas of the Black Sea

2019 ◽  
Vol 4 (2) ◽  
pp. 41-51
Author(s):  
A. A. Paraskiv ◽  
N. N. Tereshchenko ◽  
V. Yu. Proskurnin
Keyword(s):  
Surface Layer ◽  
Bottom Sediment ◽  
Black Sea ◽  
Bottom Sediments ◽  
Salt Lakes ◽  
Sediment Surface ◽  
The Black Sea ◽  
Crimean Peninsula ◽  
Dose Rates ◽  
The Crimean Peninsula

The level of radioactive alpha-emitting radionuclides 239+240Pu activity concentration assessment in the surface (0–5 cm) bottom sediments from 10 Crimean salt lakes from 4 geographical groups was carried out. The highest values were observed in the lakes from different geographical groups: Kyzyl-Yar – (419 ± 27), Dzharylhach – (443 ± 24), Tobechik – (451 ± 43) mBq·kg-1 of 239+240Pu. The lowest values were observed in 3 studied lakes of Perekop group: Kiyat – (24 ± 6), Kirleut – (48 ± 4), Krasnoye – (95 ± 9) mBq·kg-1 of 239+240Pu. The comparative analysis showed that in the bottom sediment surface layer of the coastal Black Sea areas the 239+240Pu levels were on average twice as high as those in the surface bottom sediment of the salt lakes of the Crimean peninsula. The dose rates in the surface layer mud from the salt lakes were estimated to be within the natural radioactive background.

Barbus anatolicus, a new barbel from the Kızılırmak and Yeşilırmak River drainages in northern Anatolia (Teleostei: Cyprinidae)

Zootaxa ◽  
2018 ◽  
Vol 4461 (4) ◽  
pp. 539 ◽  
Author(s):  
DAVUT TURAN ◽  
CÜNEYT KAYA ◽  
MATTHIAS GEIGER ◽  
JÖRG FREYHOF
Keyword(s):  
Black Sea ◽  
Posterior Margin ◽  
Dna Barcode ◽  
Species Group ◽  
The Black Sea ◽  
Crimean Peninsula ◽  
Dorsal Fin ◽  
Fin Ray ◽  
River Drainages ◽  
The Crimean Peninsula

Barbus anatolicus, new species, is described from the Kızılırmak and Yeşilırmak River drainages in the southern Black Sea basin. It is distinguished from other Barbus species in the Middle East by having 58–71 total lateral line scales, a moderately ossified last simple dorsal-fin ray, serrated along about 70–80% of its posterior margin, many small irregular shaped black or brown spots, smaller or as large as scales, often forming large, dark-brown blotches on the head, back and flank in adults and juveniles, and a concave posterior dorsal-fin margin. In addition, DNA barcode data reject the hypothesis that it belongs to one of the other species of the B. barbus species group. Barbus bergi from Bulgaria and adjacent Turkey is treated as synonym of B. tauricus. Barbus tauricus was previously believed to be restricted to the Crimean Peninsula but is found to be widespread in the Black Sea basin. 

scholarly journals The seascapes and the use of various anchor systems in the marine farms of The Crimea

2019 ◽  
Vol 3 ◽  
pp. 4-11
Author(s):  
Vyalova O.Yu. ◽  
Prygunova I.L.
Keyword(s):  
Black Sea ◽  
Mutual Influence ◽  
The Black Sea ◽  
Crimean Peninsula ◽  
Long Line ◽  
The Crimea ◽  
Anchor Systems ◽  
Oyster Farms ◽  
Almost All ◽  
The Crimean Peninsula

Seascape complexes are decisive in choosing of technologies for growing different species of fish and mollusks, as well as in designing and installing farms on the Black Sea shelf. Marine farms, as hydrotechnical installations, play the role of artificial underwater seascapes and have a mutual influence on natural local systems. This article describes the main elements of mussel-oyster farms, the criteria for choosing a location for them, technological solutions of anchor systems, taking into account the peculiarities of the marine seascapes of the Crimean peninsula. In the Black Sea, it is advisable to install farms of the long-line type, which satisfy almost all the requirements for growing mollusks: they are quite stable during strong storms and wind impacts, allow changing the depth of mollusk placement if necessary, and are easy to install and maintain. The depths at the site which was selected for the installation of the marine farm should be in confines 10...30 m, and 15...20 m is the optimal depth for it. The permissible depth must be at least 10 m under the marine farm in consequence. The choice of optimal depths is associated with the need to save materials also. The characteristics, applicability and installation features of several types of anchors (concrete, screw and plow) for grounds of different composition and density are proposed. Promising areas for the development of the Black Sea mariculture are the western and eastern coasts of the Crimean peninsula.

METHODOLOGY FOR STUDYING FOULING IN THE COASTAL WATERS OF THE BLACK SEA AND EXPEDITION RESEARCH IN THE ATLANTIC AND INDIAN OCEANS

2021 ◽  
Author(s):  
L.L. Smirnova ◽  
Keyword(s):  
Black Sea ◽  
Coastal Waters ◽  
The Black Sea ◽  
Vital Activity ◽  
Crimean Peninsula ◽  
Organic Components ◽  
Physical Chemical ◽  
Microbiological Methods ◽  
Methodological Approaches ◽  
The Crimean Peninsula

The monograph is devoted to methodological approaches in the study of fouling of various anthropogenic surfaces in the coastal waters of the southwestern shelf of the Crimean Peninsula. Attention is paid to the study of the effectiveness of various antifouling compositions with the complex use of physical, chemical and microbiological methods. The processes of biodegradation in seawater of organic components of various paint and varnish materials as a result of the vital activity of a community of peripheral microorganisms are considered. The possibilities of studying the fouling of various shipbuilding materials and structures in oceanic expedition conditions.

RUSSIAN ANTI-ACCESS POTENTIAL (A2 / AD) ON THE CRIMEAN PENINSULA

2020 ◽  
Vol XIV ◽  
pp. 0-1
Author(s):  
Patryk Reśkiewicz
Keyword(s):  
Black Sea ◽  
Russian Federation ◽  
The Black Sea ◽  
Security Architecture ◽  
Crimean Peninsula ◽  
Black Sea Region ◽  
South Eastern ◽  
The Russian Federation ◽  
The Military ◽  
The Crimean Peninsula

The purpose of the following article is to present the military capabilities of the Russian Federation located on the Crimean peninsula, and to define in this context Russian A2/AD anti-access capabilities and their impact on the security architecture of the Black Sea region, in particular NATO's south-eastern flank

scholarly journals Settlement dynamics of the Isabelline Wheatear Oenanthe isabellina (Temm.) on the Crimean Peninsula

2020 ◽  
Vol 2020 (23) ◽  
pp. 17-25
Author(s):  
A. N. Tsvelykh ◽  
◽  
V. M. Kucherenko ◽  
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
The West ◽  
Southeastern Part ◽  
Crimean Peninsula ◽  
Black Sea Coast ◽  
Species Expansion ◽  
Sea Coast ◽  
Central Crimea ◽  
The Crimean Peninsula

The expansion of Oenanthe isabellina in Ukraine began at the end of 1950s - early 1960s. The Isabelline Wheatear settled along the coast of the Sea of Azov from east to west and appeared on the Crimean Peninsula later than in the regions located to the west of it. Since the late 1960s, this species has been nesting near the mouth of the Dnipro River which located in the west of the Crimean Peninsula. The nesting of Oenanthe isabellina was found in the northern part of the Crimean Peninsula in 1973. In the mid-1980s, the Isabelline Wheatear inhabited the northwestern coast of Crimea and appeared far in the east - on the Kerch Peninsula. In the southeastern part of the peninsula the range of the Wheatear reached the Black Sea coast by the end of the 1980s, when the species nesting was found near Feodosia. In the southeastern part of Crimea, the Isabelline Wheatear continued to settle along the Black Sea coast in a westerly direction in the 1990s: its nesting was found near Sudak. In the central Crimea, the species range reached the northern foothills of the Crimean Mountains at this time. The species expansion to the south slowed down by the beginning of the 2000s. In the western Crimea, the southernmost settlement of the Isabelline Wheatear was found near Evpatoria. In the northern foothills of the Crimean Mountains (Central Crimea), the range border has not changed. There were no significant changes in the southeastern Crimea during this period - in the 2000s, O. isabellina nested near Sudak as in the 1990s. The species expansion almost stopped in Crimea in the 2010s. The settling of the Isabelline Wheatear in the steppe regions of the southwestern Crimea did not occur, possibly due to the absence of little ground squirrel settlements, whose burrows birds usually use for nesting. The border of the O. isabellina range has moved southward on about 100 km for three decades - from the beginning of the 1970s to the beginning of the 2000s -, i.e. the settlement speed of the species in Crimea was about 3 km per year.

scholarly journals Composition analysis of phytoplankton microalgae in various water areas of the Black sea near the Crimean peninsula

2020 ◽  
pp. 93-100
Author(s):  
N.A. Andreeva ◽  
◽  
E.A. Grebneva ◽  
Keyword(s):  
Black Sea ◽  
Coastal Waters ◽  
Water Area ◽  
The Black Sea ◽  
Composition Analysis ◽  
Active Growth ◽  
Crimean Peninsula ◽  
Sevastopol Bay ◽  
Different Seasons ◽  
The Crimean Peninsula

Preliminary studies of cultivated phytoplankton microalgae were carried out in water samples collected during four expeditions at oceanographic stations of the coastal waters of the northwestern and northeastern parts of the Black Sea in different seasons of 2019-2020. Some features of the development of the algological component in conditions of changing oceanological characteristics of the environment have been established. In spring, the most active growth of diatoms was revealed in the area from Balaklava to the water area of the Sevastopol Bay.

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