Results 201 to 210 of about 3,081 (239)

Pollution of the waters in the Volga River delta with organochlorine pesticide DDT

Uchenye Zapiski Kazanskogo Universiteta Seriya Estestvennye Nauki
This article describes the results of a study on DDT content in the watercourses of the Volga River delta. Based on the data from the long-term state environmental monitoring in 1985–2022, DDT concentrations in the water of the investigated region were ...
V. O. Tatarnikov, D. R. Svetasheva
semanticscholar   +1 more source

About weeds of agrophytocenoses of the Volga river delta

Flora and vegetation of Russia
In 2024 we registered 73 species of vascular weeds, including 18 alien species (Abutilon theophrasti, Amaranthus albus, Amaranthus blitoides, Amaranthus blitum, Amaranthus retroflexus, Ambrosia artemisiifolia, Caulinia graminea, Conyza canadensis ...
V. Vasjukov, A. Chuvashov
semanticscholar   +1 more source

The history of the development of biological resources of the Volga River from 1931 to 1971

Fisheries
The basis of the fishery of the Volga-Caspian fishing region is anadromous and semi-anadromous fish. The state of fishery for biological resources of the Volga River during the construction and commissioning of the Volga-Kama cascade’s hydroelectric ...
A. Glubokov
semanticscholar   +1 more source

Macrozoobenthic communities of the saline Bolshaya Samoroda River (Lower Volga region, Russia)

2019
We investigated species composition, density, biomass and estimated production of macrozoobenthos communities in the middle and mouth reaches of the saline Bolshaya Samoroda River (Volgograd region, Russia) from May 2013 to April 2014. A total of 30 euryhaline and halophilic taxa were found during the study period. There were significant differences in
Golovatyuk, Larisa, Zinchenko, Tatiana D., Nazarova, Larisa (Dr.)   +2 more
openaire   +1 more source

Population structure of Formica aquilonia (Hymenoptera, Formicidae) at the boundary of boreal and subboreal landscapes in the Volga River region

Entomological Review, 2014
N. I. Korochkina, E. Konopleva, T. A. Zryanina   +2 more
semanticscholar   +2 more sources

METAL MIGRATION FORMS IN THE WATERS OF THE UNZHA RIVER BASIN (UPPER VOLGA REGION)

География и природные ресурсы, 2021
I.N. Ovchinnikova, A.P. Sizov
openaire   +1 more source

Tardigrade Fauna of the Region between Oka and Volga Rivers (Russia) and Patterns of their Distribution in Substrates and Habitats

Hydrobiologia, 2006
The region between the Oka and Volga rivers has been largely neglected with respect to tardigrade biodiversity. In the present study a total of 21 species from 7 genera, 3 families, 2 orders and only 1 class of tardigrades were present, and some of their ecological preferences were noted.
openaire   +1 more source

ASSESSMENT OF THE QUALITY OF THE AQUATIC ENVIRONMENTTHE ESTUARY REGION OF THE VOLGA RIVER ACCORDING TO COMPLEX INDICATORS IN 2020

Астраханский вестник экологического образования, 2021
D. Svetasheva, Ev. Kolmykov, Stepan Zubanov, Roza Umerbaeva   +3 more
semanticscholar   +1 more source

Finding of Longtail Dwarf Goby Knipowitschia longecaudata (Actinopterygii: Gobiidae) in the Upstream Part of Unregulated Section of the Volga River

Inland Water Biology, 2021
Yu V Kodukhova, D P Karabanov, Karabanov D P   +2 more
exaly  

Some Cretaceous and Paleogene Trinacria, Medlinia, Sheshukovia species from Russia (Volga river region, Western Siberia), Kazakhstan and Ukraine

Nova Hedwigia Beihefte, 2018
N. I. Strelnikova, E. N. Nikitina
semanticscholar   +1 more source