scholarly journals CYANOBACTERIA AND DIATOMAL ALGAE IN DIFFERENT ECOTOPES COMMUNITIES OF THE COASTAL AREA OF SEVASTOPOL (BLACK SEA)

2021 ◽  
Vol 2 (74) ◽  
pp. 06-10
Author(s):  
N. Andreeva

The purpose of this investigation is to study the biodiversity and occurrence of cyanobacteria and microalgae, as well as their ability to form microcolonies in cultivated samples from various ecotopes of the Sevastopol coastal area. The method of laboratory cultivation was used in the work. The study of the communities revealed a significant variety of forms of photosynthetic organisms. Many of them could form regulated structures (microcolonies), which was important for the existence of organisms under certain conditions

2017 ◽  
Vol 6 (2) ◽  
pp. 85
Author(s):  
Oylum Gokkurt Baki ◽  
Osman Nuri Ergun

Sinop is a province located at the Black Sea region and it is rich in scenic beauty and cultural values and has potential touristic resources. Moreover, it is one of the most prominent port towns in the Black Sea region. The area, which can be qualified as the most important and prominent image region of the city, comprise the coastal land use line of the province. However, the city fails to utilize this advantage. The master plan of the city has substantially changed through the years. The present study aimed to determine the changes in the master plans of the city through the years, the distribution of the coastal land use areas and changes in the utilization of the coastal areas through the years. Evaluating the current administrative competence/constraints in the coastal area with respect to the data obtained in the study is also among the goals of the study. Furthermore, by taking the impact of environmental factors on the ratio of the land use areas into consideration, examining these data in terms of coastal management planning to create habitats that better suit the vital requirements is another prospect of the study. In addition, the evaluation of some coastal area-associated issues including the extent of the effect of current erosion issues on the development of the coastal area was also included in the study. The percentage of the current functional coastal areas in the province, the distribution of the number of building floors and the changes in these data by years were also investigated. For these evaluations, zoning revisions and 1/2000, 1/5000 and 1/10000 maps were examined to determine the coastal area zoning changes and filling areas. Fieldworks were carried out in the coastal area of the city to determine and observe the state of the area. The data was collected by contacting relevant institutions and organizations and carrying out fieldworks. Considering the data obtained in the study, measures to remedy the zoning deficiencies in the coastal area and the city center were proposed. The obtained data and evaluations obtained revealed that the province is in need of new and sustainable planning and there is a necessity to include implementations that are based on integrated coastal area management principals.


2017 ◽  
Vol 122 (1-2) ◽  
pp. 475-482 ◽  
Author(s):  
Hasan Baltas ◽  
Murat Sirin ◽  
Goktug Dalgic ◽  
Esra Yilmaz Bayrak ◽  
Aysel Akdeniz

1999 ◽  
Vol 39 (8) ◽  
pp. 37-45 ◽  
Author(s):  
G. Shtereva ◽  
S. Moncheva ◽  
V. Doncheva ◽  
O. Christova ◽  
I. Shterev

In the present paper the main trends in the principal chemical parameters and the phytoplankton communities in the close coastal area are discussed, aimed at evaluating the present ecological state of the environment and water quality in comparison with historical data. The results reveal a decrease in the content of PO4 and Si, while there is no apparent trend in the N-NO3 variability. In seasonal terms a change in the minima and maxima of some parameters is evident, and a seasonal dynamic closer to the natural annual cycle in the Black Sea. A decrease in the average annual phytoplankton biomass is established, especially pronounced during the summer period. The results suggest a positive sign of evolution of the environmental characteristics of the coastal zone, which should be treated rather tentatively due to the still high level of nutrients and the capacity of the ecosystem to produce and maintain high phytoplankton biomass.


2011 ◽  
Vol 15 (4) ◽  
pp. 595-606 ◽  
Author(s):  
Paulina Anastasiu ◽  
Gavril Negrean ◽  
Ciprian Samoilă ◽  
Daniyar Memedemin ◽  
Dan Cogălniceanu

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