Results 151 to 160 of about 127,090,338 (175)

Influence of Municipal Wastewaters on the Zooplankton Communities of a Small River from the Industrial Zone of the Middle Volga Region Based on the Results of Long-Term Observations

open access: yesContemporary Problems of Ecology
The presented species list of zooplankton is a summary of long-term observations that took place on the small river Stepnoy Zai, situated in the industrial zone of the Middle Volga region of Russia.
Larisa Nazarova
exaly   +3 more sources

The response of water flow, suspended sediment yield and erosion intensity to contemporary long-term changes in climate and land use/cover in river basins of the Middle Volga Region, European Russia

Science of the Total Environment, 2020
The Middle Volga Region is one of the most populated and agriculturally developed geographic regions of the East European Plain within European Russia, where noticeable changes in climate and land use/cover were observed since the 1980s and the early 1990s respectively.
Artyom Gusarov
exaly   +5 more sources

Early cretaceous gastropods of the Middle-Lower Volga river region from P.A. Gerasimov’s collection

Paleontological Journal, 2009
Based on the studying of gastropods collected by P.A. Gerasimov from the Cretaceous beds of the Volga region, four new species are established: Avellana hauteriviensis sp. nov. from the Upper Hauterivian of the Ulyanovsk region, “Palaeorissoina” sokolovensis sp. nov., O. sinzowi sp. nov., and Nerineopsis turritum sp. nov.
A V Guzhov
exaly   +2 more sources

Zooplankton of the Bol’shoi Tsivil River (Middle Volga Region) under a changing hydrological mode and an increasing anthropogenic load

Biology Bulletin, 2012
The zooplankton composition and structure in the Bol’shoi Tsivil River have been studied. The results were compared to A.S. Morozov’s study of this river in 1913–1914, when it was a water-mill dam regulated stream. The fauna still features a significant number of eutrophic water indicators, and Rotifera prevails as before.
V N Podshivalina
exaly   +2 more sources

Early Maastrichtian cheilostome bryozoans from the middle Volga River region

PalZ, 2020
Eight 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
openaire   +1 more source

Hydrological-geomorphological and landscape features for identification of floodplain in small and middle rivers of the middle Volga region

SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2019
© SGEM 2019. The main factor for determination the floodplain terrace as a geomorphological body is the inundation of the bottom of river valleys by flood and high waters. However, to determinate a high floodplain and separate it from other terraces, it is necessary to use other natural components.
Kurbanova S., Prokhorenko N., Rozhko M.
openaire   +3 more sources

Palinostratigraphy and Paleoenvironments in the Gorodishchi Section (Middle Volga River Region, Kimmeridgian–Hauterivian)

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.
openaire   +1 more source

Type and reference sections of the Middle and Upper Permian of the Volga and Kama River Regions

2015
Detailed descriptions and new biostratigraphic, paleomagnetic, geochemical, chemostratigraphic, and sedimentological data on the most important type and reference sections of the Ufimian, Kazanian, Urzhumian, and Severodvinian stages are presented. The guidebook is intended for geologists and paleontologists who study Permian stratigraphy, paleontology
openaire   +1 more source

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