The influence of submesoscale eddies on hydrochemical parameters and structural and functional characteristics of phytoplankton in the north-eastern part of the Black Sea

2019 ◽  
pp. 24-40
Author(s):  
Sergey B. Kuklev ◽  
Vladimir A. Silkin ◽  
Valeriy K. Chasovnikov ◽  
Andrey G. Zatsepin ◽  
Larisa A. Pautova ◽  
...  
Keyword(s):  
Anticyclonic Eddy ◽  
The Black Sea ◽  
Hydrochemical Parameters ◽  
North East ◽  
The North ◽  
Seasonal Thermocline ◽  
North Eastern ◽  
Quantitative Indicators ◽  
The City ◽  
North Eastern Part

On June 7, 2018, a sub-mesoscale anticyclonic eddy induced by the wind (north-east) was registered on the shelf in the area of the city of Gelendzhik. With the help of field multidisciplinary expedition ship surveys, it was shown that this eddy exists in the layer above the seasonal thermocline. At the periphery of the eddy weak variability of hydrochemical parameters and quantitative indicators of phytoplankton were recorded. The result of the formation of such eddy structure was a shift in the structure of phytoplankton – the annual observed coccolithophores bloom was not registered.

scholarly journals EXTREME WAVES IN THE NORTH-EASTERN PART OF THE BLACK SEA

2007 ◽  
Vol 3 (1) ◽  
pp. 22-27
Author(s):  
B.V. Divinsky ◽  
◽  
O.V. Pushkarev ◽  
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Extreme Waves ◽  
The North ◽  
North Eastern ◽  
North Eastern Part

scholarly journals Fortress of ‘Godlik’ in the system of mediaeval fortifications on the Black Sea coast of Greater Sochi

2020 ◽  
Vol 28 ◽  
pp. 406-421
Author(s):  
Bronislava Ovchinnikova ◽  
Keyword(s):  
Black Sea ◽  
Eastern Coast ◽  
The Black Sea ◽  
State University ◽  
The North ◽  
Field Investigations ◽  
Black Sea Coast ◽  
North Eastern ◽  
A Site ◽  
The City

This article is devoted to results of field investigations at the fortress of ‘Godlik’ conducted by the Loo archaeological expedition of the Ural State University in 1992–1996. This fortress is part of the system of mediaeval defensive installations situated on the north-eastern coast of the Black Sea and is located near the modern urban settle- ment of Lazarevskoye in the city of Sochi. The fortress is a site highly complicated for investigations presenting the ruins of an old fortification where the cultural layer in the court of the fort is practically annihilated.

scholarly journals ZOOPLANKTON OF THE NORTH-EASTERN PART OF THE BLACK SEA OFF THE COAST OF TAMAN IN THE SUMMER-AUTUMN PERIOD 2018–2019

2021 ◽  
Vol 49 (1) ◽  
pp. 26-36
Author(s):  
N.P. Remizova
Keyword(s):  
Black Sea ◽  
Taxonomic Composition ◽  
The Black Sea ◽  
Mnemiopsis Leidyi ◽  
Autumn Period ◽  
The North ◽  
Oithona Davisae ◽  
Invading Species ◽  
North Eastern ◽  
North Eastern Part

The taxonomic composition and quantitative characteristics of zooplankton in the northeastern part of the Black Sea near the Taman coast in the summer-autumn period of 2018–2019 were studied. Zooplankton was represented mainly by eurythermic and thermophilic forms. All the discovered species and taxa are currently typical of the Black Sea, including the invading species: copepods Acartia tonsa, Oithona davisae, and combtails Mnemiopsis leidyi, Beroe ovata. The average number of zooplankton in 2018 ranged from 2.7–15.9 thousand copies/m3, the biomass – 0.02–0.14 g/m3; its indicators in 2019; they were lower, respectively, 2.0–5.6 thousand copies/m3 and 0.02–0.07 g/m3. These indicators were within the values recorded earlier, in 2013–2014. A significant part of the coastal zooplankton is meroplankton, which accounted for 5–69% of the population and 4–47% its biomass. O. davisae dominated amoung copepods. This speciest was leading in numbers in both years except June 2019. Despite the similarity of the taxonomic composition of zooplankton, the dominant species in terms of biomass differed by month in two years.

LONG-TERM MONITORING OF SEASONAL AND INTERANNUAL VARIABILITY OF HYDROLOGICAL STRUCTURE IN COASTAL ZONE OF THE NORTH-EASTERN BLACK SEA

2017 ◽  
Author(s):  
O. Podymov ◽  
O. Podymov ◽  
N. Kuzevanova ◽  
N. Kuzevanova ◽  
A. Khvorosch ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
Hydrogen Sulphide ◽  
Sea Water ◽  
The Black Sea ◽  
Homogeneous Layer ◽  
Marmara Sea ◽  
The North ◽  
North Eastern ◽  
North Eastern Part

The work demonstrates the results of the 6-years complex ship-borne monitoring of coastal zone in the north-eastern part of the Black Sea, carried out by the Southern Branch of P.P.Shirshov Institute of Oceanology, RAS, on a marine cross-section at the Blue Bay (Gelendzhik) beam 1-2 times per month. Climatic changes and eutrophication exert a significant impact on the sea water at the coastal area. In case of the Black Sea these factors pile up with a permanent hydrogen sulphide contamination of the sea water below 80-200 meters depth (depending on the season and distance from the shore). Strong pycno-halocline at the depths from 70 to 160 meters, formed due to the inflow of high salinity water from the Marmara Sea, inhibits the mixing between the water layers and, as a result, also limits the oxygen transport into the deeper layers. The winter cooling reduces the pycno-halocline and enriches the top active layer, down to the cold intermediate layer (CIL), with oxygen and nutrients, which subsequently lead to a vernal phytoplankton bloom. Formation of the thermocline and upper quasi-homogeneous layer (UQL), caused by the water warming in spring, at large extent determines a thickness of phytoplankton-rich layer during the spring and summer seasons. The work demonstrates seasonal and interannual dynamics of the UQL, thermocline, CIL and hydrogen sulphide boundary position in the coastal zone of the north-eastern part of the Black Sea.

Analysis of the continental slope gravitational deposits (the north-eastern part of the Black Sea)

2018 ◽  
pp. 29-36
Author(s):  
O. A. Khlebnikova ◽  
A. A. Ivanova ◽  
A. M. Nikishin ◽  
A. G. Roslyakov ◽  
A. V. Starovoytov
Keyword(s):  
Continental Slope ◽  
Black Sea ◽  
Seismic Data ◽  
The Black Sea ◽  
Final Phase ◽  
The North ◽  
Last Glaciation ◽  
North Eastern ◽  
Gravitational Processes ◽  
North Eastern Part

Analysis of new 3D and 2D seismic data made it possible to describe in detail the continental slope relief of the northeastern part of the Black Sea, and a large number of gravitational processes of various types. It is established that the final phase of the active lithodynamic processes development is due to the NovoEvksin regression of the basin associated with the last glaciation and completed its development more than ten thousand years ago. The irregularities formed as a result of late Holocene landslides also occur, but their contribution is insignificant, and the amplitude rarely exceeds 1 m.

scholarly journals MEDICINAL PLANTS OF NORTH-EAST REGION OF INDIA: A SMALL REVIEW

2018 ◽  
Vol 10 (4) ◽  
pp. 11
Author(s):  
Mrinmoy Sharma ◽  
Biswajit Das
Keyword(s):  
Herbal Medicines ◽  
Rural People ◽  
Traditional System ◽  
Traditional Medicines ◽  
North East ◽  
The North ◽  
East Region ◽  
North Eastern ◽  
Healing Power ◽  
North Eastern Part

Assam is a state of the North Eastern part of India. There are varieties of plants distributed in various parts of the state. 50% of India’s entire plant biodiversity is contributed by the North Eastern States i.e., Manipur, Mizoram, Sikkim, Tripura including Assam. The Ministry of Environment and Forests (MoEF), Government of India in 1980s recorded two hundred and eighty-six (286) species of plants from Assam, used by the tribes of Assam.The traditional system of medicine plays an important role in the healthcare of rural people for all types of ailments. The healing power of traditional herbal medicines has been realized and documented since Rigveda and Atharvaveda. Nearly 80% of the world populations rely on traditional medicines for primary health care, most of which involve the use of plant extracts.

Coinage and Economy of Premodern North-East India

2017 ◽  
Vol 44 (2) ◽  
pp. 212-224
Author(s):  
Debajit Dutta
Keyword(s):  
Indian History ◽  
North East India ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Comprehensive Manner ◽  
North Eastern Part

The study of coinage and economy of any area has its own appeal. As they are not much affected by outline influence, so they often proceed along their own lines and thus can have significance for people trying to determine the general patterns of development. In precolonial phase of Indian history, the Ahom kingdom situated in the North-Eastern part demands special attention as it had its own glorious series of coinage. As a royal issue, the coins of Ahom kingdom were the emblems of royalty and symbolic majesty of the Ahom kings. The metals, the motifs as well as other accompanying details on the coins depict the details of faiths and customs adopted by the Ahom kingdom. In this write up, we will discuss the origin, growth, importance in contemporary economy and many other aspects of the Ahom coinage in a comprehensive manner.

Subsatellite experiments in the north-eastern part of the Black Sea

2009 ◽  
Author(s):  
V. V. Bakhanov ◽  
N. A. Bogatov ◽  
A. V. Ermoshkin ◽  
E. M. Zuikova ◽  
V. I. Kazakov ◽  
...  
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
The North ◽  
North Eastern ◽  
North Eastern Part

scholarly journals Environmental Impacts Assessment of Chromium Minings in Bulqiza Area, Albania

2017 ◽  
Vol 3 (4) ◽  
pp. 35
Author(s):  
Elizabeta Susaj ◽  
Enkelejda Kucaj ◽  
Erald Laçi ◽  
Lush Susaj
Keyword(s):  
Local Institutions ◽  
Negative Effects ◽  
The North ◽  
The Earth ◽  
North Eastern ◽  
The World ◽  
The City ◽  
North Eastern Part ◽  
Chromite Mining ◽  
Soil And Water

Bulqiza District is the largest chromium source, ranked fourth in the world for chrome reserves. It lays in the north-eastern part of Albania, 330-1800 m a.s.l, with 728 km² area, between 41o30’43.1N and 20o14’56.21E. There are 136 entities with chromium extraction activity and around the city of Bulqiza (2.6 km² and 13000 inhabitants), there are 33 entities. The aim of the study was the identification of the environmental state and environmental impact assessment of chromium extraction (chromite mining) and giving recommendations to minimize the negative effects of this activity. Field observations, questionnaires, chemical analysis of soil and water, meetings and interviews with central and local institutions as well as with residents were used for the realization of the study. The obtained results showed that chromium extraction causes numerous irreversible degradation of the environment in the Bulqiza area, such as the destruction of surface land layers and erosion, destruction of flora and fauna, soil and water pollution, health problems, unsustainable use and reduction of chromium reserves, etc. The inert waste that emerges after the chromium partition is discharged to the earth surface without any regularity, covering the surface of the soil and flora, leading to irreversible degradation of the environment. Most of the mining entities do not respect the contracts and environmental permit issued by the Ministry of Energy and Industry (MEI).

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