scholarly journals European River Lamprey Lampetra Fluviatilis in the Upper Volga: Distribution and Biology

2021 ◽  
Author(s):  
Aleksandr Zvezdin ◽  
Aleksandr Kucheryavyy ◽  
Anzhelika Kolotei ◽  
Natalia Polyakova ◽  
Dmitrii Pavlov
Keyword(s):  
Hydroelectric Station ◽  
Ecological Niches ◽  
Caspian Basin ◽  
Migration Routes ◽  
Baltic Basin ◽  
Invasion Pathways ◽  
Volga River ◽  
Lampetra Fluviatilis ◽  
Upper Volga ◽  
The Baltic

Abstract After the construction of the Volga Hydroelectric Station and other dams, migration routes of the Caspian lamprey were obstructed. The ecological niches vacated by this species attracted another lamprey of the genus Lampetra to the Upper Volga, which probably came from the Baltic Sea via the system of shipways developed in the 18 th and 19 th centuries. Based on collected samples and observations from sites in the Upper Volga basin, we provide diagnostic characters of adults, and information on spawning behavior. Silver coloration of Lampetra fluviatilis was noted for the first time and a new size-related subsample of “large” specimens was delimited, in addition to the previously described “dwarf”, “small” and “common” adult resident sizes categories. The three water systems: the Vyshnii Volochek, the Tikhvin and the Mariinskaya, are possible invasion pathways, based on the migration capabilities of the lampreys. Dispersal and colonization of the Caspian basin was likely a combination of upstream and downstreams migrations. First, the lampreys migrated upstream along the rivers of the Baltic basin until they reached the water-parting line, followed by mostly downstream dispersal into rivers of the Caspian basin. Dispersal in the Volga River was similar, in accordance with the migration cycle of this opportunistic lamprey species.

scholarly journals Invasion of the European River Lamprey Lampetra fluviatilis in the Upper Volga

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1825
Author(s):  
Aleksandr O. Zvezdin ◽  
Aleksandr V. Kucheryavyy ◽  
Anzhelika V. Kolotei ◽  
Natalia V. Polyakova ◽  
Dmitry S. Pavlov
Keyword(s):  
Caspian Basin ◽  
Species Dispersal ◽  
Baltic Basin ◽  
Invasion Pathways ◽  
Juvenile Period ◽  
Volga River ◽  
Upper Volga ◽  
River Lamprey ◽  
The Baltic ◽  
Watershed Boundary

The European river lamprey came to the Upper Volga from the Baltic Sea most probably via a system of shipways developed in the 18th and 19th centuries. The Vyshnii Volochek, Tikhvin, and Mariinskaya water systems are possible invasion pathways for this species. Dispersal and colonization of the Caspian Basin was likely a combination of upstream and downstream migrations. Analysis of museum and our own samples showed that lamprey possibly migrated upstream (for spawning) along rivers of the Baltic Basin until they reached the watershed boundary from which they could disperse downstream (in the juvenile period) into rivers of the Caspian Basin. Dispersal in the Volga River could occur in accordance with the migration cycle of this opportunistic lamprey species and lead to the present distribution. Key features (dentition and number of trunk myomeres) showed that lamprey from the studied area are similar to lampreys from the Baltic basin, although specimens in each population have their own peculiarities in morphology (size and coloration). Genetic data (Cyt-b) support the idea of a relatively recent invasion of lamprey into the Upper Volga. The haplotype, found in three rivers, is one of the most widespread in Europe and is found along the supposed route of invasion.

scholarly journals European river lamprey Lampetra fluviatilis L. in the Baltic and Caspian seas basins of Tver region

2020 ◽  
pp. 7-15
Author(s):  
Анжелика Вячеславовна Колотей ◽  
Александр Олегович Звездин ◽  
Александр Васильевич Кучерявый ◽  
Дмитрий Сергеевич Павлов
Keyword(s):  
Caspian Sea ◽  
The Caspian Sea ◽  
Volga River ◽  
Lampetra Fluviatilis ◽  
Additional Information ◽  
River Lamprey ◽  
Species Expansion ◽  
Tver Region ◽  
The Baltic ◽  
Baltic Sea Basin

Представлена дополненная информация о распространении и условиях обитания речной миноги (Lampetra fluviatilis L.) на территории Тверской области. Ареал на территории области представляет собой сочетание исторического (водотоки бассейна Балтийского моря) и инвазионного (водотоки бассейна Каспийского моря) компонентов. Обоснована идея вселения миноги в систему р. Волга по системам искусственных судоходных каналов. Состояние популяций в Каспийском бассейне указывает на продолжающийся процесс освоения новых местообитаний. Additional information on the distribution and habitat of the European river lamprey (Lampetra fluviatilis L.) in the Tver Region is presented. The areal of the European river lamprey in the Region consists of the historical (watercourses of the Baltic Sea Basin) and invasive (watercourses of the Caspian Sea Basin) components. The idea of the lamprey invasion in the Volga River through the system of manmade shipping canals is substantiated. The condition of the lamprey’s populations in the Caspian Sea Basin indicates the ongoing process of the species expansion.

Satellite altimetry of large lakes of the Baltic Basin

2014 ◽  
Author(s):  
S. A. Lebedev ◽  
Yu. I. Troitskaya ◽  
G. V. Rybushkina ◽  
M. N. Dobrovolsky
Keyword(s):  
Satellite Altimetry ◽  
Baltic Basin ◽  
Large Lakes ◽  
The Baltic

Reconstructing the Younger Dryas ice dammed lake in the Baltic Basin: Bathymetry, area and volume

2007 ◽  
Vol 57 (3-4) ◽  
pp. 355-370 ◽  
Author(s):  
Martin Jakobsson ◽  
Svante Björck ◽  
Göran Alm ◽  
Thomas Andrén ◽  
Greger Lindeberg ◽  
...  
Keyword(s):  
Younger Dryas ◽  
Baltic Basin ◽  
Dammed Lake ◽  
The Baltic ◽  
Area And Volume

scholarly journals Controlling Shipping Along the North European Trade Axis

1971 ◽  
Vol 24 (4) ◽  
pp. 553-556
Author(s):  
D. J. Lindsay
Keyword(s):  
Weather Conditions ◽  
North Coast ◽  
Baltic Basin ◽  
Long Distance ◽  
The North ◽  
Large Numbers ◽  
Straight Line ◽  
European Trade ◽  
Trade Route ◽  
The Baltic

By the North European Trade Axis is meant the trade route from Ushant and Land's End, up the English Channel, through the Dover Strait fanning out to serve eastern England, the north coast of continental Europe and leading to the Baltic Basin. Recent events in this area have left a feeling that some form of tightening of control is not only desirable, but is rapidly becoming imperative. There is a basic conflict between the two forms of shipping using the area: the local users who use the area more or less constantly, and the long-distance traders, usually much larger, which arrive in the area for a brief stay after a prolonged period at sea, which has usually been in good weather conditions. Frequently these latter ships have a very poor notion of the hornet's nest into which they are steaming when they arrive. The net result is all too often the same: the local users, with familiarity breeding contempt, wander about as they see fit, with scant regard for routing or the regulations; all too often the big ships arrive from sea with navigating staffs who are too confused, sometimes too ignorant—and sometimes too terrified—to do much more than blunder forward in a straight line hoping for the best. Quite obviously this is not a total picture, and there are large numbers of ships which navigate perfectly competently, but the minority of those which do not seem to be rising rapidly, and show every sign of continuing to increase.

Factors controlling pore network development of thermally mature Early Palaeozoic mudstones from the Baltic Basin (N Poland)

2021 ◽  
pp. 105328
Author(s):  
P. Słomski ◽  
J. Szczepański ◽  
T. Topór ◽  
M. Mastalerz ◽  
A. Pluymakers ◽  
...  
Keyword(s):  
Pore Network ◽  
Network Development ◽  
Baltic Basin ◽  
Early Palaeozoic ◽  
The Baltic

scholarly journals Spatial And Temporal Transformation Of Bottom Sediments In The Volga River. Communication 1. Bottom sediments and their transformation as the result of the increase in the water level of the Cheboksary

2015 ◽  
pp. 21
Author(s):  
Keyword(s):  
Water Level ◽  
Bottom Sediments ◽  
Social Aspects ◽  
Mercury Deposition ◽  
Volga River ◽  
Cheboksary Reservoir ◽  
Current Water ◽  
The Baltic ◽  
Temporal Transformation ◽  
Sedimentation Processes

Spatial and temporal patters of the formation, distribution and accumulation of bottom sediments in the Cheboksary Reservoir at the current water level for the period from 1981 to 2010 are considered. The prediction of their state is made taking into consideration the increase in the level of the Baltic system to 65 and 68 m. The effect of sedimentation processes on mercury deposition in sediments is determined. Some hydrobiological and social aspects of the problem are considered.

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