scholarly journals ON THE ANALYSIS OF GEOMORPHOLOGICAL AND GEO-ECOLOGICAL CONDITION AND NATURAL AND ANTHROPOGENIC RISKS REDUCING THE RESILIENCE OF COASTAL SYSTEMS OF THE EASTERN PART OF THE BLACK SEA

2018 ◽  
Vol 2 (№12 2018) ◽  
pp. 333-338
Author(s):  
M.S. Arakelov ◽  
A.K. Akhsalba ◽  
G.G. Gogoberidze ◽  
A.V. Dolgova-Shkhalakhova ◽  
R.Yu. Zhiba ◽  
...  
Keyword(s):  
Black Sea ◽  
Ecological Condition ◽  
The Black Sea ◽  
Coastal Systems ◽  
Anthropogenic Risks

scholarly journals Analysis of the ecological condition of water and bottom substrates of the lower Dniester by the method of biotesting on microalgae

2021 ◽  
Author(s):  
Olga Semenova ◽  
Keyword(s):  
Black Sea ◽  
Coastal Waters ◽  
Water Layer ◽  
Laboratory Culture ◽  
Ecological Condition ◽  
Anthropogenic Factors ◽  
The Black Sea ◽  
Toxic Substances ◽  
Hazardous Pollutants ◽  
Desmodesmus Communis

In the autumn-spring periods 2018 - 2020. biotesting of water and bottom sediments of the lower Dniester and Ukrainian coastal waters of the Dniester region of the Black Sea was carried out by biotesting on a laboratory culture of planktonic algae Desmodesmus communis. The assessment of the ecological and toxicological situation and a comparative analysis of indicators of the level of pollution of the ecosystem of the “lower reaches of the Dniester” testify to the chronic pollution of this ecosystem by dangerous toxicants, acute toxicity occurs only during peak periods, while chronic toxicity is constantly manifested. It was found that in the overwhelming majority of water areas with different nature of anthropogenic factors and anthropogenic load, there were no toxic substances. Hazardous pollutants were more often found in the surface water layer of the zones affected by urban wastewaters on the Ukrainian coast of the Dniester region of the Black Sea.

scholarly journals THE ECOLOGICAL CONDITION OF COASTAL WATERS OFF THE HERACLES PENINSULA (CRIMEA, THE BLACK SEA)

2017 ◽  
Vol 14 ◽  
pp. 39-47
Author(s):  
Natalya S. Chelyadina ◽  
Mark A. Popov ◽  
Elena V. Lisitskaya ◽  
Natalya V. Pospelova ◽  
Vladimir N. Popovichev
Keyword(s):  
Particulate Matter ◽  
Sex Ratio ◽  
Primary Production ◽  
Black Sea ◽  
Coastal Waters ◽  
Anthropogenic Impacts ◽  
Ecological Condition ◽  
The Black Sea ◽  
Taxonomic Structure ◽  
Phytoplankton Primary Production

The results of the long-term monitoring of coastal waters off the Heracles Peninsula (Crimea, the Black Sea) are presented. The abiotic and biotic parameters, indicating the ecological condition of the coastal zone, have been studied. The following parameters have been measured by standard methods: water temperature, illuminance, concentration of particulate matter, organic matter, primary production, intensity of biotic reproduction of particulate matter, phytoplankton and meroplankton species diversity, abundance, and biomass, as well as shell morphometrics and sex ratio in mussel Mytilus galloprovincialis Lam. It has been found that upwelling water circulation is typical for the coastal waters off the Heracles Peninsula. The mean annual sea surface temperature over the study period 2000-2016 proved to be 2.7°С higher than that in the early 20th century. The maximum values of phytoplankton primary production are associated with inner waters of coves and with increased Twater and Еmax values. A reduction in phytoplankton and meroplankton diversity and a dominance of eurybiontic species have been recorded from the waters subject to anthropogenic impacts. The most pronounced shift of sex ratio toward predominance of M. galloprovincialis males and a high mussel Н/L shell index are observed in waters with increased technogenic load. The taxonomic structure of phytoplankton and meroplankton, sex ratio, and morphometric parameters of bivalves are the sensitive tools of ecological monitoring to assess the condition of the surrounding aquatic environment.

Pollution sources identification in the “land-sea” system

2002 ◽  
Vol 46 (8) ◽  
pp. 53-58
Author(s):  
D. Dachev ◽  
S. Zlatanova
Keyword(s):  
Black Sea ◽  
Close Relation ◽  
Data File ◽  
Ecological Condition ◽  
Ore Deposits ◽  
The Black Sea ◽  
Environmental Status ◽  
Geological Features ◽  
Black Sea Coast ◽  
The Impact

It is our opinon that the new scientific thinking and education in the 21st century will increase the significance of the multidisciplinary nature knowledge. The nature of the marine sediments as well as the biochemical features of the littoral organisms appear to be in close relation to the geochemical impact of the coastal onshore. The biogeochemical analysis of the terrestrial and marine biocenosis is still fragmental, without balance between the casual and sequential relationships. Along the Bulgarian Black Sea coast the latter necessitates the geological pattern clarification of the areas south of Bourgas. Even a superficial overview of the geological features of the region highlights the impact of the geochemical anomalies related to Rosen and Zidarovo volcanic apparatuses and intrusions, other ore deposits south and south-west as well. However, the intensive anthropogenic impact on the geochemical haloes should be pointed out in the complex of ecological damage to the coast. Through complementary geoecological studies a significant updating of the knowledge is suggested. The geoecological mapping is needed to present the ratio of the lands saturated with geonoxes, and anthropogenically polluted ones. The new methodology recommended was applied to make the distinction of such lands in the regions of Pirdop and Kardjali. Another key element appears to be the ecologicalÐeconomic characteristics in the offshore-onshore balance. The marine resources will be studied in the alternative context: benefit-damage from the onshore polluters, and the biogeochemical characteristics of the littoral zone. The coastal areas environmental status should make a distinction between the environmentally undamaged, environmentally damaged by nature, anthropogenically damaged and complex damaged lands. Each ecological study or analysis presenting the ecological condition of the environment in a status quo (at a certain moment and at a certain location) is described in this work as a Status Geoecological System. For environmental management and protection of the Black Sea we refer to an indispensable Data File representing the Dynamic Geoecological System.

scholarly journals GEOECOLOGICAL RESEARCH OF THE BLACK SEA ESTUARIES AS A COMPONENT OF THE AZOV-BLACK SEA BASIN GEOECOSYSTEM

2021 ◽  
pp. 6-14
Author(s):  
V. Iemelianov ◽  
O. Ivanik ◽  
T. Kulaha ◽  
Ye. Kostiuchyk ◽  
A. Drozdova
Keyword(s):  
Black Sea ◽  
Remote Sensing Data ◽  
Ecological Condition ◽  
The Black Sea ◽  
Coastal Zones ◽  
Geological Processes ◽  
History Of Research ◽  
Current State ◽  
History Of ◽  
Problematic Situations

The Black Sea estuaries are unique natural formations that havegreat geoecological and recreational importance. But their ecological state is almost critical and requires developing effective measures to preserve them and restore the geoecological balance. On the basis of literary and field materials, the article analyzes the information about the history of research of estuaries within the northwest coast of the Black Sea. The current state and problematic situations in the study of their morphology, dynamics and regime are determined, the current problems for each estuary are emphasized. On the basis of field geological and geomorphological investigations and remote sensing data, the features of gravitational geological processes within the coastal zones are characterized. Changes in the morphology of the coastline and estuary areas during 2015–2020 are analyzed. Modern hydrological characteristics and features of ecological condition of these estuaries are given. Perspectives of further research of these objects are determined. To preserve the natural value of the estuaries as a unique transition zone between sea and land (geoecoton), the geoecological research approachis proposed to use

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