Monitoring Anthropogenic Impact on Some Coastal Water Areas of the Black Sea Using Multispectral Satellite Imagery

2018 ◽  
Vol 54 (9) ◽  
pp. 1008-1022 ◽  
Author(s):  
V. G. Bondur ◽  
V. E. Vorobyev ◽  
V. V. Zamshin ◽  
A. N. Serebryany ◽  
A. A. Latushkin ◽  
...  
Keyword(s):  
Satellite Imagery ◽  
Black Sea ◽  
Coastal Water ◽  
Anthropogenic Impact ◽  
The Black Sea ◽  
Multispectral Satellite Imagery

Anthropogenic Impact on the Lithodynamics of the Coastal Zone of the Southern and Western Black Sea Coast (Review)

2021 ◽  
Author(s):  
T. V. Efremova ◽  
Yu. N. Goryachkin ◽  
◽  
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
Bottom Sediments ◽  
Anthropogenic Impact ◽  
River Flow ◽  
The Black Sea ◽  
Negative Consequences ◽  
Coastal Zones ◽  
Natural Dynamics ◽  
The Impact

Anthropogenic impact on lithodynamics of the coastal zone changes the natural dynamics of bottom sediments, which leads to increased abrasion and swelling of beaches, activation of landslide processes creating a threat of destruction of the coastal infrastructure. The article aims at providing an overview of the scientific literature on the anthropogenic impact on lithodynamics of the coastal zone of the southern and western coasts of the Black Sea (shores of Romania, Bulgaria and Turkey). The work shows that with all the differences in the natural conditions of the coastal zones of these countries the types of anthropogenic effects they undergo are almost the same. These include: hydrotechnical construction without regard to the impact on the neighbouring coast sections; reduction of solid river flow due to river regulation by reservoirs; construction of capital facilities directly on the beaches; illegal extraction of sand from beaches and river beds; dredging with sale of the extracted material to construction companies; covering of cliffs by various structures; destruction of coastal dunes, etc. The main negative consequences of these actions are reflected in disruption of natural dynamics and shortages of bottom sediments, changes in the coastline, reduced aesthetic attractiveness and accessibility of shores, destruction of coastal ecosystems. The article also provides information on the legislation of these countries regarding environmental management in the coastal zone

scholarly journals SEX INVERSION IN CULTIVATED MUSSELS MYTILUS GALLOPROVINCIALIS LAM. (CRIMEA, BLACK SEA) UNDER INFLUENCE OF EXTERNAL ENVIRONMENTAL FACTORS

2018 ◽  
Vol 19 ◽  
pp. 26-31
Author(s):  
Natalya Chelyadina ◽  
Natalya Pospelova ◽  
Mark Popov ◽  
Ludmila Smyrnova ◽  
Irina Kharchuk ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Sex Ratio ◽  
Black Sea ◽  
Diesel Fuel ◽  
Hormonal Regulation ◽  
Anthropogenic Impact ◽  
Mytilus Galloprovincialis ◽  
The Black Sea ◽  
Sex Inversion ◽  
Anionic Detergents

In the last decade, there has been a shift in the sex ratio of the mussel Mytilus galloprovincialis in the Black Sea towards increase of males. In modern literature, focus is mainly on mechanisms of sex inheritance in mussels and hormonal regulation of the reproduction, and there is no information on sex inversion in M. galloprovincialis under the influence of environmental factors. The goal of this work is to establish the fact of sex change in mussels cultivated near the coast of Crimea under the influence of some external environmental factors. We establish that mussels change sex from female to male, but some specimens become hermaphrodites, with their fraction reaching 13%. Under unfavorable environmental conditions, mussel females change sex, and their mortality rises up to 69%. In water areas subject to anthropogenic impact, the proportion of sex inversion in the mollusks may be as high as 58%. The influence of various adverse   environmental factors on sex inversion in mussel females is unequal, and its strength decreases in the following order: diesel fuel > hypoxia > anionic detergents > starvation.

scholarly journals The Relationship between Integrated Biochemical Index and Content of Organochlorine Xenobiotics in the Liver of the Black Scorpion Fish Scorpaena porcus Linnaeus, 1758, from Sevastopol Bays and Coastal Areas

2020 ◽  
pp. 387-409
Author(s):  
Ludmila V. Malakhova ◽  
Ekaterina N. Skuratovskaya ◽  
Tatiana V. Malakhova ◽  
Veronika V. Lobko
Keyword(s):  
Black Sea ◽  
Biochemical Markers ◽  
Anthropogenic Impact ◽  
Coastal Areas ◽  
The Black Sea ◽  
Biomarker Response ◽  
Wet Weight ◽  
High Concentrations ◽  
Scorpion Fish ◽  
Scorpaena Porcus

Despite the ban on the use of organochlorine compounds (OCs), they are still widely distributed in various components of the Black Sea ecosystem, including fish. Sevastopol marine area, as a region of active economic use, is subject to significant anthropogenic impact. To assess the condition of the Black Sea scorpion fish Scorpaena porcus Linnaeus, 1758, from Sevastopol bays (Aleksandrovskaya, Streletskaya, Balaklavskaya, and Kazach’ia) and coastal areas (Laspi bay and Lyubimovka region), the liver of fish was analyzed to compare integrated biomarker response (IBR) and the concentrations of OCs: six indicator congeners of polychlorinated biphenyls (ΣPCB6) and organochlorine pesticides – р,p’-DDT and its metabolites p,p’-DDE and p,p’-DDD (ΣDDT). High concentrations of PCBs and DDTs were found in fish liver from Alexandrovskaya and Streletskaya bays, which are subject to significant anthropogenic impact: 2044 and 2019 ng/g wet weight for ΣPCB6 and 162 and 319 ng/g wet weight for ΣDDT, respectively. To determine the response of scorpion fish to the level of pollution, the liver of fish was analyzed to measure such biochemical markers as cholinesterase and catalase activities, albumin content, and the levels of oxidized proteins and lipid peroxidation. The set of these biochemical markers was used to calculate IBR. IBR correlated well with the ΣPCB6 concentration in sediments and liver of scorpion fish (r=0.95, p<0.05). The maximum IBR was determined in the most polluted Alexandrovskaya and Streletskaya bays, where it was two orders of magnitude higher than the IBR in Laspi bay. Based on IBR values, the fish from Laspi and Kazach’ia bays and from the coastal area of Lyubimovka were in better condition than the fish from Alexandrovskaya, Streletskaya, and Balaklavskaya bays in summer seasons of 2016-2018

Satellite remote sensing techniques for detection of riverine and other sources flows in the coastal part of the Black Sea

2020 ◽  
Author(s):  
Irina Gancheva ◽  
Gordon Campbell ◽  
Elisaveta Peneva
Keyword(s):  
Remote Sensing ◽  
Optical Properties ◽  
Black Sea ◽  
Coastal Water ◽  
Satellite Remote Sensing ◽  
Small River ◽  
The Black Sea ◽  
River Plumes ◽  
Untreated Sewage ◽  
Sewage Discharges

&lt;p&gt;Poorly treated or completely untreated sewage water discharges are common problem which might have major consequences in coastal water regions, smaller water basins and semi-enclosed seas. Although satellite remote sensing has a great potential for coastal water quality monitoring such outfalls are difficult for detection due to the small scale of the events and the complex effects on the physical and biogeochemical parameters. In search for an appropriate technique for detection of&amp;#160; sewage discharges through satellite remote sensing, we examine areas with similar optical water properties, such as small river plumes flowing into the sea. They are expected to be visible in a similar manner as they have high turbidity levels, higher nutrients concentration and are fresh compared to the salty sea water.&lt;/p&gt;&lt;p&gt;In the current study we examine small river inflows in the Black Sea as they have optical and radar properties comparable with poorly or completely untreated sewage discharges in the region. Additionally, the Black Sea is an intriguing study area because of the unique ecosystem with challenging optical properties and water characteristics.&lt;/p&gt;&lt;p&gt;The temporal and spatial variability of the inherent optical properties and sea surface roughness are studied in the area of river plumes and are compared with open sea values. The impact of atmospheric conditions given by wind speed, wind direction and precipitation on the river plume detectability is observed in the regions of interest. Long time series of images for three years are analysed in order to reveal the seasonal and annual variability of the events. The satellite data is taken from the Sentinel missions and the atmospheric variables are from the ERA5 reanalysis.&lt;/p&gt;&lt;p&gt;The outcome of the study gives a solid base for estimation of the potential of satellite remote sensing for monitoring of poorly treated or completely untreated sewage outfalls or other land sources flowing into the sea.&lt;/p&gt;

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