scholarly journals Extreme Flooding in the Don River Delta in Spring 2013

2015 ◽  
pp. 111
Author(s):  
G. G. Matishov ◽  
S. V. Berdnikov
Keyword(s):  
River Delta ◽  
Don River ◽  
Extreme Flooding

MONITORING RESULTS OF SAZAN (CYPRINUS CARPIO CARPIO LINNAEUS, 1758) POPULATION IN THE EASTERN PART OF THE TAGANROG BAY AND THE DON RIVER DELTA

2020 ◽  
Author(s):  
P.A. Balykin ◽  
◽  
A.V. Startsev ◽  
G.E. Guskov ◽  
A.S. Grin ◽  
...  
Keyword(s):  
Age Groups ◽  
Indirect Evidence ◽  
Parasite Fauna ◽  
River Delta ◽  
Weight Growth ◽  
Younger Age ◽  
Cyprinus Carpio Carpio ◽  
Don River ◽  
Taganrog Bay ◽  
Biological State

The materials for 2003-2018 on the biological state of sazan of the eastern part of the Taganrog Bay and the Don River delta were summarized. It has been shown that the catches of sazan in the study area consisted of more than half of the fish of younger age groups, the length of which was less than the commercial measure. The ratio of linear and weight growth of sazan is shifting towards a decrease in the mass of one-dimensional specimen, which is indirect evidence of the deterioration of the natural living conditions of semi-migratory fish. In 2019, the carp parasite fauna was represented by 7 species related to monogenes - 2 species, cestodes - 3 species, nematodes - 1 species, crustaceans - 1. The state of the sazan population needs further research.

scholarly journals Geoheritage in Deltaic Environments: Classification Notes, Case Example, and Geopark Implication

Environments ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 18 ◽  
Author(s):  
Anna Mikhailenko ◽  
Dmitry Ruban
Keyword(s):  
River Delta ◽  
Anthropogenic Sources ◽  
Full Spectrum ◽  
River Deltas ◽  
Geological Features ◽  
Don River ◽  
The Rich ◽  
Ecosystem Interactions ◽  
Geological Phenomenon

River deltas boast ecosystem richness, but their efficient conservation and management require consideration of the full spectrum of natural phenomena, including those which are geological. Few specialists have explored the issue of deltaic geological heritage (geoheritage), and the relevant knowledge remains scarce and non-systematised. This paper proposes the first classification of this geoheritage. Five categories are distinguished: entire-delta geological phenomenon, delta-associated “purely” geological features, delta-associated features resulting from geology–ecosystem interactions, geological features occasional to deltas, and geoarchaeological localities in deltas. Chosen as a case example, the Don River delta in the southwestern part of Russia possesses geoheritage of these categories, except for the latter. The relevant unique geological features differ by their types and ranks. Of particular interest is the phenomenon of a self-cleaning environment which prevents mercury concentration in the soil despite pollution from natural and anthropogenic sources. The complexity of the deltaic geoheritage, its co-existence with the rich biodiversity, and the aesthetical issues make geopark creation in river deltas a sensible venture. Relevant proposals have been made for Malaysia and the Netherlands–Belgium border, and the Don River delta in Russia also presents an appropriate location for geopark creation.

Introduction of species of genus Marenzelleria Mensil, 1896 (Polychaeta: Spionidae) in the Don River delta and Taganrog Bay

2016 ◽  
Vol 7 (2) ◽  
pp. 174-181 ◽  
Author(s):  
V. L. Syomin ◽  
A. V. Sikorski ◽  
E. P. Kovalenko ◽  
N. I. Bulysheva
Keyword(s):  
River Delta ◽  
Don River ◽  
Taganrog Bay

scholarly journals Expedition of the R/V Professor Panov (April 2018): preliminary results of observations of extreme flooding in the Lower Don Region

2019 ◽  
Vol 59 (1) ◽  
pp. 163-165
Author(s):  
G. G. Matishov
Keyword(s):  
Water Level ◽  
Weather Conditions ◽  
The Body ◽  
Observation Data ◽  
Sea Of Azov ◽  
Water Abundance ◽  
Don River ◽  
Southern Russia ◽  
Daily Discharge ◽  
Extreme Flooding

During the period of 2002–2018, southern Russia was subjected to extreme weather conditions, which can be characterized as drought. The water content and volume of the Don, Kuban, and Volga rivers decreased, salinization of the Sea of Azov was observed, and saline (4–6‰) Azov water periodically flowed into the Don River delta. Analysis of the hydrological observation data for 2018 revealed an episode of extreme flooding in the Lower Don (below the Kochetov hydroelectric complex) associated with the 15-year shortage of water in the body of the Don. An outstanding example of a natural and manmade anomaly in 2018 was the discharge of a significant amount of water from the Tsimlyan reservoir in April–May. For example, the average daily discharge was 345m3/s on April 10, 1503 m3/s on April 28, and 1701 m3/s by May 6. As a result, the maximum wave of water abundance in the Don formed by the end of April–beginning of May 2018, and the water level reached values not observed in the Don for 15 years. The research in the Gulf of Taganrog showed considerable desalinization of its eastern part. The level of salinization in this region did not exceed 2‰, while in spring 2017, the average values of salinization around the port of Taganrog were over 6‰.

scholarly journals Spiders (Aranei) of the coast of Taganrog Bay (the Sea of Azov) and the Don River delta

2016 ◽  
Vol 12 (1) ◽  
pp. 3-28 ◽  
Author(s):  
A.V. Ponomarev ◽  
◽  
E.V. Prokopenko ◽  
P.P. Ivliev ◽  
V.Yu. Smatko ◽  
...  
Keyword(s):  
River Delta ◽  
Sea Of Azov ◽  
The Sea Of Azov ◽  
Don River ◽  
Taganrog Bay

scholarly journals Заключительный этап истории в Восточном региональном образовании Скифии

2020 ◽  
Vol 29 ◽  
Author(s):  
В. Копылов ◽  
◽  
А. Коваленко ◽  
Keyword(s):  
Black Sea ◽  
Final Stage ◽  
River Mouth ◽  
Comprehensive Analysis ◽  
River Delta ◽  
Black Sea Region ◽  
Stable Period ◽  
Archaeological Materials ◽  
Don River ◽  
History Of

The paper deals with all kinds of sources concerning the final stage of the Scythian history in the area of the Tanais river mouth. Comprehensive analysis of archaeological materials shows that the crisis, which led to the end of the Great Scythia, started long before the turn of the 3rd century BC. In the 3rd quarter of the 4th century BC the Elizavetovskoe settlement was attacked by the Bosporan Kingdom. Consequently, a Greek quarter was founded within the Scythian settlement, and it is highly possible that the Scythians lost some of their control over the region. At the end of the 4th century BC the Bosporan Kingdom finally conquered the Elizavetovskoe settlement, displaced its Scythian population and founded the Great Greek colony at the place. At the same time other Scythians stayed in the region. In the mid 70s of the 3rd centure BC, a sudden military attack destroyed the unfortified Greek colony. That concludes the Scythian history of the region. There is no evidence that the Sarmatians took part in the events of second half of the 4th — first half of the 3rd century BC. Tanais, a new Bosporan colony, was founded in the mouth of the Don river delta. It was during another stable period in the Northern Black Sea region, so up to the turn of the 2nd century BC Tanais had no fortifications.

Simulation and Analysis of Sea Floods in the Don River Delta

2018 ◽  
Vol 43 (2) ◽  
pp. 95-102 ◽  
Author(s):  
V. V. Fomin ◽  
D. V. Alekseev ◽  
E. M. Lemeshko ◽  
D. I. Lazorenko
Keyword(s):  
River Delta ◽  
Don River

Incorporating the effects of upstream ice jam releases in the prediction of flood levels in the Hay River delta, Canada

2017 ◽  
Vol 44 (8) ◽  
pp. 643-651 ◽  
Author(s):  
Michael De Coste ◽  
Yuntong She ◽  
Julia Blackburn
Keyword(s):  
River Delta ◽  
Regression Analyses ◽  
Ice Jams ◽  
One Dimensional ◽  
Release Wave ◽  
Ice Jam ◽  
Great Slave Lake ◽  
Extreme Flooding ◽  
Flooding Events ◽  
The Town

The town of Hay River, located in the Northwest Territories, Canada, is vulnerable to ice jam flooding occurring in the adjacent Hay River delta. The most extreme flooding events have occurred when ice jams in the channels of the delta were pushed downstream towards the mouth at Great Slave Lake. This movement has been linked to incoming waves from ice jam release in the upstream reaches of the Hay River. This study incorporated the effect of an upstream ice jam release wave into the prediction of ice jam caused flood levels in the delta by integrating three one-dimensional models. The method was validated with observed breakup events and then used to simulate various combinations of ice and water conditions in the river and the delta. Multiple linear regression analyses were applied to the results to develop a prediction tool for assessing ice jam flood risk.

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