Morphological specificities of vendace (Salmoniformes: Salmonidae: Coregoninae: Coregonus albula) population in Lake Pleshcheyevo (the Volga River basin): relationships of two phylogenetic lineages in a new zone of secondary contact

2018 ◽  
Vol 18 (3) ◽  
pp. 355-366
Author(s):  
Elena A. Borovikova ◽  
Valentina S. Artamonova
Keyword(s):  
River Basin ◽  
Secondary Contact ◽  
Volga River ◽  
Volga River Basin ◽  
Coregonus Albula ◽  
Phylogenetic Lineages

The main principles and results of pollution monitoring of sediments in the river basin

2020 ◽  
pp. 14-20
Author(s):  
B. Korzhenevsky ◽  
Gleb Tolkachev ◽  
Nikolay Kolomiycev
Keyword(s):  
Heavy Metals ◽  
River Basin ◽  
Water Exchange ◽  
Pollution Monitoring ◽  
Small Rivers ◽  
Volga River ◽  
Natural Landscape ◽  
Volga River Basin ◽  
Ivankovo Reservoir ◽  
Selection Of

The problems of modern geological ecology associated with the study of pollution of sediments of water bodies by heavy metals are considered. The Volga River basin is quite heterogeneous, both in geomorphological and hydrological terms, and in thechnogenical development and usage. A fourrank taxonomy is presented for the selection of sites for monitoring, based on a combination of natural, landscape, climatic and thechnogenical factors. To the largest – the highest taxon – sites of the Ist category – bowls of reservoirs with the slopes and the urban zones, industrial and agricultural structures located within them are carried. Within these areas are allocated to smaller taxa, areas category IInd are the industrial and urban zones, areas category IIIrd are the small rivers without significant contamination and areas category IVth to conduct special observations. The examples of special observations in the study of the annual migration of heavy metals in the system «bottom sediments – water column» on the Ivankovo reservoir are highlighted. The investigations were carried out under the conditions of the standard flow rate for this reservoir and in the conditions of slow water exchange.

GIS Application to Water Quality Management in the Upper Volga River Basin: Joint TVA/Russia Project

1993 ◽  
Vol 28 (3-5) ◽  
pp. 119-127 ◽  
Author(s):  
Tatiana Belyaeva ◽  
John M. Higgins ◽  
Natalia Kirpichnikova ◽  
Irina Lanzova ◽  
James R. Hagerman
Keyword(s):  
River Basin ◽  
Water Quality Management ◽  
Conceptual Approach ◽  
Management Options ◽  
Volga River ◽  
Volga River Basin ◽  
Joint Project ◽  
Upper Volga ◽  
Tennessee Valley ◽  
Resource Data

The Water Problem Institute of the Russian Academy of Science and the Tennessee Valley Authority are participating in a joint project to demonstrate the use of geographic information systems (GIS) in managing water resources under the changing economic system in Russia. The purpose is to improve decisions by better organizing, analyzing, and presenting water resource data and management options. Results to date include development of a conceptual approach and review of existing data. The project area includes the Upper Volga River Basin which encompasses the Moscow metropolitan area. Data are being managed at three levels depending on the scale and detail (i.e., regional, watershed, and local). Initial conclusions indicate a great potential for this technology, but many obstacles due to the current economic situation.

scholarly journals New data on the peltaspermaceous pteridosperms of Angaraland in paleoecological and taxonomical aspects

2018 ◽  
pp. 20-39
Author(s):  
S.V. Naugolnykh
Keyword(s):  
River Basin ◽  
Flowering Plants ◽  
Morphological Features ◽  
Fossil Plants ◽  
Volga River ◽  
Volga River Basin ◽  
Adaxial Surface ◽  
Partial Covering ◽  
Extinct Group

The paper deals with the morphological peculiarities of the species Peltaspermum morovii Naug., which is attributed to the peltaspermaceous pteridosperms, the completely extinct group of fossil gymnosperms probably closely related to ancestors of the flowering plants (angiosperms, or anthophytes). The material studied is originated from several localities of the fossil plants of Permian age, disposed in the Cis-Urals and the Volga River basin. One of the most important morphological features of the species Peltaspermum morovii was a presence of the long lobe-like outgrowths located on the seed-bearing disc margins. Most probably these lobe-like outgrowths were turned downwards the peltoid adaxial surface for partial covering and protecting of the undeveloped young ovules before their maturing. Some arguments for entomophily of the evolutionary advanced peltaspermaceous pteridosperms, to which the species Peltaspermum morovii can be assigned, are given. Detailed information about geographical and stratigraphical position of the localities cited is given as well. The leaves of callipterid morphology, which probably belonged to the same parent plants produced female fructifications of Peltaspermum morovii are discussed.

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