Long-term changes in the benthic communities of the Sea of Azov related to the sedimentation and hydrological regime

Abstract Variability of temperature and salinity as well as quantifying global trends are fundamental for understanding changes in the Earth's climate. In current paper, a long-term variability of the hydrological regime of the Sea of Azov for 1913–2018 is studied. On the basis of oceanographic information, the seasonal variability of temperature and salinity by the areas of the Sea of Azov is analysed. Temperature anomalies have been revealed, periods of salinization and desalination of the Sea of Azov have been noted and linear trends of the anomaly have been obtained.

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Long-term changes of river discharge regime in Latvia

Hydrology Research ◽

10.2166/nh.2008.033 ◽

2008 ◽

Vol 39 (2) ◽

pp. 133-141 ◽

Cited By ~ 5

Author(s):

Maris Klavins ◽

Valery Rodinov

Keyword(s):

Climate Variability ◽

River Discharge ◽

Water Resource Management ◽

Regional Climate ◽

Hydrological Regime ◽

High Water ◽

Regime Changes ◽

Long Term Changes ◽

Discharge Regime

The study of changes in river discharge is important for regional climate variability characterization and for development of an efficient water resource management system. The hydrological regime of rivers and their long-term changes in Latvia were investigated. Four major types of river hydrological regimes, which depend on climatic and physicogeographic factors, were characterized. These factors are linked to the changes observed in river discharge. Periodic oscillations of discharge, and low- and high-water flow years are common for the major rivers in Latvia. A main frequency of river discharge regime changes of about 20 and 13 years was estimated for the studied rivers. A significant impact of climate variability on the river discharge regime has been found.

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Long-term changes in the structure of benthic communities: Revisiting a sampling transect in Crete after 24 years

Marine Environmental Research ◽

10.1016/j.marenvres.2018.11.008 ◽

2019 ◽

Vol 144 ◽

pp. 9-19 ◽

Cited By ~ 1

Author(s):

I. Tsikopoulou ◽

M.L. Moraitis ◽

A. Geropoulos ◽

K.N. Papadopoulou ◽

N. Papageorgiou ◽

...

Keyword(s):

Benthic Communities ◽

Long Term Changes ◽

Sampling Transect

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Long-term changes in ecological functioning of temperate shelf sea benthic communities

Estuarine Coastal and Shelf Science ◽

10.1016/j.ecss.2020.107097 ◽

2020 ◽

pp. 107097

Author(s):

Mehdi Ghodrati Shojaei ◽

Lars Gutow ◽

Jennifer Dannheim ◽

Alexander Schröder ◽

Thomas Brey

Keyword(s):

Benthic Communities ◽

Long Term Changes ◽

Shelf Sea ◽

Ecological Functioning

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Long‐term changes of marine subtidal benthic communities in North East Asia (Yellow and Japan seas) in a global change context: A review

Aquatic Conservation Marine and Freshwater Ecosystems ◽

10.1002/aqc.3334 ◽

2020 ◽

Vol 30 (7) ◽

pp. 1451-1475 ◽

Cited By ~ 2

Author(s):

Linlin Chen ◽

Konstantin A. Lutaenko ◽

Xiaojing Li ◽

Xinzheng Li ◽

Zhengquan Zhou ◽

...

Keyword(s):

Global Change ◽

East Asia ◽

Benthic Communities ◽

North East ◽

Long Term Changes ◽

Change Context

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LONG-TERM TRENDS IN CHANGES IN METEOROLOGICAL PARAMETERS OF THE SEA OF AZOV REGION

Ecology Economy Informatics System analysis and mathematical modeling of ecological and economic systems ◽

10.23885/2500-395x-2020-1-5-130-137 ◽

2020 ◽

Vol 1 (5) ◽

pp. 130-137

Author(s):

L.V. Dashkevich ◽

Keyword(s):

Air Temperature ◽

Precipitation Amount ◽

Winter Season ◽

Atmospheric Precipitation ◽

Sea Of Azov ◽

Southern Coast ◽

The Sea Of Azov ◽

Wind Speeds ◽

Seasonal Wind

The article discusses the long-term changes in air temperature, wind speed and precipitation amount according to observations at the Primorsko-Akhtarsk, Kerch, Genichesk hydrometeorological stations on the coast of the Sea of Azov Analysis of the data for the selected periods revealed an increase in the average values of air temperature from the beginning of the 20th to the beginning of the 21st centuries, both at annual values and for all seasons. The largest increase in average values was noted for the winter, slightly less for the spring-summer season. Warming affected the southern coast least of all. On the entire coast of the Sea of Azov, a decrease in the average annual and seasonal wind speeds is observed throughout the entire century under consideration. The value of the standard deviation of wind speeds has decreased significantly, especially in the winter season. The largest decrease in the average annual and seasonal wind speeds (more than 2 times) was noted at the Primorsko-Akhtarsk HMS. From the beginning of the 20th century to the beginning of the 21st century, there is an increase in the average annual amounts of atmospheric precipitation on the western and southern coast of the sea (by about 130 mm) with an increase in the variability of their amount from year to year. Seasonal changes in the distribution of precipitation were revealed: in the modern period, the proportion of winter and spring precipitation has increased, while the proportion of autumn and, especially, summer precipitation has decreased. The greatest changes in the precipitation regime were noted for the Primorsko-Akhtarsk HMS.

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Dynamics of the ice regime of the Sea of Azov in the XX–XXI centuries

Journal Ice and Snow ◽

10.15356/2076-6734-2018-3-373-386 ◽

2018 ◽

Vol 58 (3) ◽

pp. 373-386 ◽

Cited By ~ 1

Author(s):

N. V. Yaitskaya ◽

A. A. Magaeva

Keyword(s):

Ice Cover ◽

Sea Surface ◽

Sea Of Azov ◽

The Sea Of Azov ◽

Azov Sea ◽

Fast Ice ◽

Ice Regime ◽

Degree Of Severity ◽

Ice Period

The ice regime of the Sea of Azov over the period of 20th and 21nd centuries was investigated using the author's GIS «The ice regime of the Southern Seas of the Russia». The long-term dynamics of the ice cover, duration of the ice stay as well as beginning and end of the ice period were considered. It has been found that for the period of 1950–2015 the average annual value of the Azov Sea ice cover area is 33%, while the average area of the fast ice is 6.3% of the total area of the sea. Value of duration of the ice cover stay on the sea surface has been refined, and this value is 115 days near the hydro-meteorological station (HMS) Taganrog and 63 days near the HMS Kerch. The typification of winters according to the degree of severity was performed on the basis of data from three coastal meteorological stations: Taganrog, Genichesk, and Kerch. Winters of moderate type were shown to be prevailing during the entire analyzed period. Totally, 15 severe, 70 moderate and 40 mild winters were isolated for the period 1883-2015, while for 1950–2015 the statistics was the following: 9 severe, 43 moderate, and 14 mild winters in Taganrog, and 10 severe, 40 moderate, and 16 mild winters in Kerch.

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