Commercial Activity of Caucasus’ Towns in the Abbasid Caliphate by V Il'inichna Kunkova

“…This article is dedicated to the commercial links of the Caucasian towns that were conquered by the Arabs and became a part of the Abbasid Caliphate (750–1258) and to their great role as the mediators in the Arabs’ trade with the northern countries such as Russia, Scandinavia and the towns of the Volga River basin. Geographic position of the Caucasus on the crossroads of Europe and Asia determined its economic and political importance for the Arab Caliphate that was striving for control over such popular trade routes as Volga-Caspian and a branch of a well-known rout «from Varangians to Greeks» called «from Varangians to Arabs». …”
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Description of Phytoplankton from the Bolshoy Cheremshan River (Kuybyshev Reservoir) by O.G. Gorokhova

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Geoecological problems of civil engineering in the riverside zone (case study of the Volga riverside zone) by Vasilieva Darya, Baranova Margarita, Kholopov Yuriy

“…The aim of the article is to study the influence of civil construction on the geoecological condition of the territory by the example of the bank zone of the Volga river within the city of Samara.…”
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The composition of dominant species and the structure of phytoplankton communities in small water bodies with algal 'bloom' in the south of the forest-steppe of Volga region by O.G. Gorokhova

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Gemological characteristics of jewelry-ornamental septaria of the Ulyanovsk region by D. A. Petrochenkov

“…Septaria are associated with lower Cretaceous sediments and are located in the coastal cliffs and the beach area of the Volga river. Septaria consist mainly of calcite — 89 wt. %. …”
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The Species Diversity Assessment of <i>Azygia</i> Looss, 1899 (Digenea: Azygiidae) from the Volga, Ob, and Artyomovka Rivers Basins (Russia), with Description of <i>A. sibirica</i>... by Konstantin S. Vainutis, Anastasia N. Voronova, Alexander N. Mironovsky, Oksana N. Zhigileva, Alexander E. Zhokhov

“…In addition, multivariate analysis and three methods for species delimitation (ABGD, GMYC, bPTP) showed the subdivision of <i>A. lucii</i> and <i>A. sibirica</i> n. sp. into two separate groups, one from the Volga River and another from the Ob River, respectively. …”
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Helminths of <em>Erinaceus roumanicus</em> (Eulipotyphla, Erinaceidae) in Mordovia (Russia) with an Overview of Helminth Fauna of <em>Erinaceus</em> spp. Inhabiting the Palaearctic... by Alexander A. Kirillov, Nadezhda Yu. Kirillova, Alexander B. Ruchin

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Species composition and distributional peculiarities of green frogs (Pelophylax esculentus complex) in Protected Areas of the Middle Volga Region (Russia) by Alexander I. Fayzulin, Renat I. Zamaletdinov, Spartak N. Litvinchuk, Juriy M. Rosanov, Leo J. Borkin, Oleg A. Ermakov, Alexander B. Ruchin, Georgiy A. Lada, Anton O. Svinin, Ivan V. Bashinsky, Igor V. Chikhlyaev

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Flora of karst lakes in the Pustynsky State Nature Reserve (Nizhny Novgorod oblast) by E. A. Belyakov, E. V. Garin, A. G. Okhapkin

“…The predominance of species typical for the ecotone zones of lakes (hygrophytes, hydrophytes and mesophytes) is an integral feature of the ecological-coenotic diversity which is characteristic of the Volga River basin. According to the Raunkiaer classification of life forms, hemicryptophytes are the most numerous group and the hamephytes are the least numerous one. …”
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Occurrence of the amphibians in the Volga, Don River basins and adjacent territories (Russia): research in 1996-2020 by Alexander Ruchin, Oleg Artaev, Elvira Sharapova, Oleg Ermakov, Renat Zamaletdinov, Vjacheslav Korzikov, Ivan Bashinsky, Alexey Pavlov, Anton Svinin, Alexander Ivanov, Vasily Tabachishin, Anastasiya Klenina, Svetlana Ganshchuk, Nikolai Litvinov, Nikolai Chetanov, Andrei Vlasov, Olga Vlasova

“…Our dataset represents a significant addition to the occurrences of amphibians in the Volga, Don riverine basins and adjacent territories.The dataset contains up-to-date information on amphibian occurrences in the Volga river basin and adjacent territories, located most part on the Russian plain of European Russia. …”
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Methodology of planning of landscape and ecological sustainability of natural components in the virtual model (on the example of Volgograd) by Ivanova Nina, Ganzha Olga, Prokopenko Vyacheslav

“…The construction of the landscape object of the Green ring in the suburban area of Volgograd and the environmental impact of the water surfaces of the Volga river on the sustainable development of the comfortable spaces of the city were analyzed. …”
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Fish occurrence in the Kama River Basin (Russia) by Ivan Pozdeev, Oleg Artaev, Sergei Ogorodov, Ilya Turbanov, Aleksey Bolotovskiy, Boris Levin

“…The Kama River is the largest tributary (1805 km) of the Volga River and is geographically often considered the main river due to the larger volume of water at their confluence.Dataset is based on our own field studies conducted during 2008-2021. …”
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Information about the Zasechnaya Line in the Lower Part of the Volga in the Astrakhan Region (from archival sources and materials of archaeological studies) by Evgeny M. Pigarev

“…The article considers the Moscow government activities aimed at ensuring the protection of the southern borders of the state, located in the lower part of the Volga River. The given analysis of written sources shows the scale of the works on creation of defensive objects in the XVI – XVIII centuries, included in the state Zasechnaya line, protecting the lands of the Tsardom of Russia from the raids of nomads. …”
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The architectural-ensemble problem in the construction of public buildings in Kazan in the late 1960s–1980s and the principles of their placement by Zakirova Tatyana R.

“…At the same time, the places of greatest compositional value have not been treated properly: the edge of the city’s upper terrace, the connection of the Kremlin with the embankment of the Volga River, the panorama of the Kaban lake, etc. The study provides generalized recommendations for further construction of public buildings in the city.…”
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Morphological abnormalities in some dominant fish species from the polluted site of the Pozim River (Udmurt Republic, Russia) by A.K. Mineev

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Analysis of the Constructive Features of the Earth Dam by Balzannikov Mikhail

“…The article considers the earth dam of the run-of-river unit – Kuibyshev hydroelectric power station on the Volga river (Russia). The main parameters of the earth dam, peculiarities of its erection and operation are described. …”
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Morphological diversity and widespread hybridization in the genus Bythotrephes leydig, 1860 (Branchiopoda, Onychopoda, Cercopagidae) by Litvinchuk Larisa F., Litvinchuk Spartak N.

“…brevimanus were revealed in the zone of contact of these two species in the Volga River drainage and northwestern Russia.…”
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Phylogenetic position of trematode Amurotrema dombrowskajae Achmerow, 1959 (Paramphistomoidea: Cladorchiidae) based on partial 28S rDNA nucleotide sequences by Sokolov S. G., Lebedeva D. I., Kalmykov A. P.

“…This intestinal parasite of grass carp (Ctenopharyngodon idella) was introduced with host to the Volga River Delta. These naturalized trematodes were found by the authors in 2014 – 2015. …”
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Analysis of phytoplankton of a small water body in the zone of influence of a large industrial center by the example of the Lake Vos’merka (Samara Region, Russia) by Elena S. Krivina

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About the Social Status of the Woman from Barrow 34 of the Kalinovskiy Burial Mound by Anatoliy S. Skripkin

“…The paper is devoted to determining the social status of a young woman buried in barrow 34 of the Kalinovskiy burial mound which is located on the left bank of the Volga river within the Volgograd region. The peculiarity of this burial is the presence of the armaments such as sword, arrowheads and horse harness. …”
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