Possibilities of the photoluminescence method for determining the oxygen concentration in the redox zone of the Black Sea in comparison with other methods

Oceanology ◽  
2013 ◽  
Vol 53 (4) ◽  
pp. 498-507 ◽  
Author(s):  
P. A. Stunzhas ◽  
V. E. Mosharov ◽  
V. N. Radchenko
Keyword(s):  
Oxygen Concentration ◽  
Black Sea ◽  
The Black Sea ◽  
Redox Zone

scholarly journals Seasonal Changes in the Hydrochemical Structure of the Black Sea Redox Zone

Oceanography ◽  
2005 ◽  
Vol 18 (2) ◽  
pp. 48-55 ◽  
Author(s):  
Evgeniy Yakushev ◽  
Oleg Podymov ◽  
Valeriy Chasovnikov
Keyword(s):  
Black Sea ◽  
Seasonal Changes ◽  
The Black Sea ◽  
Redox Zone

Dissolved and particulate forms of iron and manganese in the redox zone of the Black Sea

Oceanology ◽  
2009 ◽  
Vol 49 (6) ◽  
pp. 773-787 ◽  
Author(s):  
S. V. Pakhomova ◽  
A. G. Rozanov ◽  
E. V. Yakushev
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Redox Zone ◽  
Iron And Manganese ◽  
Forms Of Iron

scholarly journals Long-term variability of dissolved oxygen and temperature of the upper layer of the Black sea

2019 ◽  
Vol 59 (1) ◽  
pp. 22-32
Author(s):  
A. B. Polonsky ◽  
A. A. Kotolupova
Keyword(s):  
Seasonal Variation ◽  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Black Sea ◽  
The Black Sea ◽  
Dissolved Oxygen Concentration ◽  
Open Sea ◽  
Technical Systems ◽  
North Western

The article provides an analysis of intra- and inter-annual variability of dissolved oxygen and temperature in the upper layer of the deep-water and north-western parts of the Black Sea in the period from 1923 to 2013. The analysis is carried using the archived data from the oceanographic database of Institute of natural and technical systems. Seasonal variability of dissolved oxygen concentration and temperature is out-of-phase. In average, dissolved oxygen concentration is at a maximum at the N-W shelf in winter and is at a minimum in the open Sea in summer. The amplitude of the seasonal variations is about 50 µmol/l. In general, this is consistent with the published results on the seasonal variation in temperature. However, in some periods, lasting about 20 to 30 years, seasonal variation varies. It is due to quasi-periodical interdecadal variability of dissolved oxygen concentration which differs from one season to another and in various subregions.

scholarly journals Annual and Seasonal Variation in Artemia Population in Relation to Water Quality Parameters in Lake Galgas in Crimea, Russia

2019 ◽  
pp. 1-9
Author(s):  
Rudneva Irina Ivanovna ◽  
Shaida Valentin Grigor’evich ◽  
Sherba Anton Viktorovich ◽  
Zav’vyalov Andrei Veniaminovich
Keyword(s):  
Oxygen Concentration ◽  
Black Sea ◽  
Developmental Stages ◽  
Quality Parameters ◽  
The Black Sea ◽  
Hatching Rate ◽  
Northern Coast ◽  
Hydrochemical Characteristics ◽  
Local Climate ◽  
Artemia Population

Aim: To study seasonal changes of hydrological parameters of the water and Artemia population status in the hypersaline Galgas Lake in the period of 2017-2019. Study Area and Duration: The study was carried out in the Crimea, a peninsula on the northern coast of the Black Sea in Eastern Europe in 2017-2019. Methodology: Water (brine) and Artemia samples were collected monthly from the lake located at the coastal line of the Black Sea. The parameters namely temperature, pH, salinity, Eh, and oxygen concentration of were determined in the water. Artemia population including the developmental stages and the cysts hatching rate of the cysts were measured in different seasons in the study period. The differences in hydrochemical characteristics of the study area in different years and seasons were observed. Results: The results showed that the hydrochemical characteristics of the study area varied with the climate peculiarities. In summer months 2017, the lake was dried out. In the hot period, the temperature of the air and water was above +30°C, the pH ranged insignificantly, and the oxygen concentration was low. Artemia cysts were found throughout the year, however the nauplii were mostly available during spring and autumn seasons, while the adults were found in spring and summer months. Conclusion: The study concluded that the changes of the water parameters depended on season and especially on air temperature. The changes of Artemia population were different in examined years and depended on the water characteristics and especially on temperature and oxygen concentration. The obtained results could be helpful for the local climate changes consequences studies and their influence on aquatic biota.

scholarly journals An algorithm for determining the oxygen concentration in the Black Sea by Argo probes

2021 ◽  
Vol 5 ◽  
pp. 74-81
Author(s):  
Nikolay Nikolov
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Black Sea ◽  
The Black Sea

This paper presents the algorithm for determining the concentration of dissolved oxygen in the Black Sea according to data from Argo probes. A comparison was made between data from two Argo probes released in the Black Sea in 2011 and 2014.

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