Results 181 to 190 of about 3,081 (239)
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Russian Geology and Geophysics, 2021
Abstract —Eight dinocyst-based and three spore- and pollen-based biostratigraphic units are defined in the Kimmeridgian, Volgian, and Hauterivian of the Gorodishchi section, based on a biostratigraphic analysis of the successions of marine and terrestrial palynomorphs.
E. Pestchevitskaya
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Abstract —Eight dinocyst-based and three spore- and pollen-based biostratigraphic units are defined in the Kimmeridgian, Volgian, and Hauterivian of the Gorodishchi section, based on a biostratigraphic analysis of the successions of marine and terrestrial palynomorphs.
E. Pestchevitskaya
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Early Maastrichtian cheilostome bryozoans from the middle Volga River region
PalZ, 2020Eight species in six genera of cheilostome bryozoans are described from an early Maastrichtian outcrop located in the Saratov Region, middle Volga River region, southern Russia. The studied bryozoan assemblage includes a new species, Cheethamia volgaensis sp.
Anna V. Koromyslova, Vladimir B. Seltser
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Doklady Biological Sciences, 2016
The taxonomic position of the microproblematics previously considered to be Foraminifera or Calcisphaerulidae is established. The first record from Russia of calcareous cysts of Dinoflagellata is presented. The microfossils originate from the Maastrichtian siliceous clay of the Volga River Region.
V. Vishnevskaya
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The taxonomic position of the microproblematics previously considered to be Foraminifera or Calcisphaerulidae is established. The first record from Russia of calcareous cysts of Dinoflagellata is presented. The microfossils originate from the Maastrichtian siliceous clay of the Volga River Region.
V. Vishnevskaya
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Isotope Stratigraphy of the Permian Rocks, the Volga River Region
2017In this investigation the 87Sr/86Sr values were considered for the Upper Kazanian regional section Pechishchi and accompanied sections of the Lower Kazanian substage and also the Lower Permian formation. The section Pechishchi is known as reference section formed within the Kazanian palaeosea.
N. G. Nurgalieva +2 more
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POND REARING OF PADDLEFISH UNDERYEARLINGS IN STURGEON POLYCULTURE IN THE LOWER VOLGA RIVER REGION
STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. In the frame of the XXIII Agribusiness Forum of the South of Russia and the Exhibition «Interagromash» Volume 1, 2020The cultivation of paddlefish underyearlings in polyculture with sturgeons (hybrid bester) in fish ponds was studied. The hydrochemical and hydrobiological parameters in ponds during the cultivation were investigated. A comparative assessment of the growth rates of paddlefish and bester underyearlings during one and two cycles pond cultivation has been
L.M Vasilyeva +3 more
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The parasite community of gobiid fishes (Actinopterygii: Gobiidae) from the Lower Volga River region
Biologia, 2015The parasitic fauna in the lower Volga River basin was investigated for four gobiid species: the nonindigenous monkey goby Neogobius fluviatilis (Pallas, 1814), the round goby N. melanostomus (Pallas, 1814), the Caspian bighead goby Ponticola gorlap (Iljin, 1949), and the tubenose goby Proterorhinus cf. semipellucidus (Kessler, 1877).
Yuriy Kvach +3 more
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Tourism law and economics
Based on the spatio-temporal approach, the regional features of the relief of the Volgograd Volga region as an important recreational object from the position of its attractiveness are considered and the results of ecological and tourism activities of natural parks of the territory under consideration are presented.
Nadezhda P. Dyachenko, Alla F. Baranova
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Based on the spatio-temporal approach, the regional features of the relief of the Volgograd Volga region as an important recreational object from the position of its attractiveness are considered and the results of ecological and tourism activities of natural parks of the territory under consideration are presented.
Nadezhda P. Dyachenko, Alla F. Baranova
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POLLUTION OF BOTTOM SEDIMENTS OF THE VOLGA RIVER BY HEAVY METALS IN THE ASTRAKHAN REGION
Астраханский вестник экологического образования, 2022Altynganym Karabayeva +2 more
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Water (Switzerland), 2021 The regulation of river flow in the Volga basin has caused irreversible changes to aquatic ecosystems. The transformation of the Volga into a cascade of hydraulic structures with a non-flow regime has resulted in a decrease in depth and flow, and an ...
A I Novak, Ryszard Polechoński
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Природопользование: от истории к современности. Куражковские чтения. Материалы I Международной научно-практической конференции, 2022
Kirill V. Dedov +3 more
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Kirill V. Dedov +3 more
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