Water isotopic-geochemical composition in the Trekhtsvetnoe meromictic lake on the White Sea coast

2016 ◽  
Vol 43 (5) ◽  
pp. 828-838 ◽  
Author(s):  
Yu. K. Vasil’chuk ◽  
N. L. Frolova ◽  
E. D. Krasnova ◽  
N. A. Budantseva ◽  
A. C. Vasil’chuk ◽  
...  
2020 ◽  
Vol 11 ◽  
Author(s):  
Alexander S. Savvichev ◽  
Vitaly V. Kadnikov ◽  
Igor I. Rusanov ◽  
Alexey V. Beletsky ◽  
Elena D. Krasnova ◽  
...  

2009 ◽  
Vol 20 (1) ◽  
pp. 4-8 ◽  
Author(s):  
Emilia Nartshuk ◽  
Andrey Przhiboro

A new chloropid species, Incertella karteshensis sp. n. with darkened wings, is described from the White Sea coast (northern Karelia, Russia). The diagnostic characters of the new species are discussed


2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Daria I. Boldyreva ◽  
Vladislav V. Babenko ◽  
Alexandra V. Kanygina ◽  
Olga N. Lunina ◽  
Maria A. Letarova ◽  
...  

Here, we report the draft genome sequences of the green sulfur bacterium Chlorobium phaeovibrioides strains GrTcv12 and PhvTcv-s14, isolated from the chemocline zone from meromictic Lake Trekhtzvetnoe, separated from the White Sea, in Russia. This is the first report showing the presence of plasmids containing antiphage systems in the Chlorobium sp. genome.


2019 ◽  
Vol 485 (2) ◽  
pp. 221-225
Author(s):  
V. V. Kolka ◽  
O. P. Korsakova ◽  
N. B. Lavrova ◽  
T. S. Shelekhova ◽  
N. E. Zaretskaya

This paper reports on the lithological, micropaleontological, and chronometric data (radiocarbon dating) for one of the areas of the White Sea coast. The sedimentary sequences were studied in the current lake basins, which were separated from the large basin at different times. The basin was situated in the head of the current Onega Bay. On the basis of these data, the bottom sediments were stratified and the Late Pleistocene-Holocene paleogeographic settings were reconstructed for the southeastern part of Onega Bay.


1998 ◽  
Vol 1 ◽  
pp. 41 ◽  
Author(s):  
Margje Post

The present article deals with the dialect of Kojda, a village situated on the White Sea coast in the Mezen' rajon of the Archangel'sk oblast'. The dialects of the Archangel'sk oblast' are poorly described, because most of the area is not included in the Dialect Atlas of the Russian Language (DARJa).The dialects spoken to the north of the Northern Dvina developed from the Old Novgorod dialect of the first Russian settlers, who came in the Middle Ages. Kojda was founded at a later stage, in the 17th century, presumably by people from neighbouring settlements. A large proportion of the present population, however, are descendants of Old Believers from Novgorod.The main part of the article consists of an enumeration of the main dialectical features of Kojda. These features were found on a tape recording of an 88-year old inhabitant of the village. These dialectal char-acteristics were compared with data from several publications dealing with dialects from the Archangel'sk oblast', in particular with dialects from the Pinega rajon, which is situated near Kojda.Most features are typical of the Archangel'sk dialects. An exception is the comparatively open pronunciation of the Old Russian jat'. Some data suggest that there are more features which are not typical of all dialects of the Archangel'sk oblast', but further research is needed. My findings suggest that the dialect of Kojda is more similar to the Pinega dialects than might be expected from the literature, though it seems to be less archaic.


2021 ◽  
pp. 295-306
Author(s):  
Eugenya F. Markovskaya ◽  
Elena N. Terebova ◽  
Elena N. Gulyaeva ◽  
Vera I. Androsova ◽  
Maria A. Pavlova ◽  
...  

2019 ◽  
pp. 54-59
Author(s):  
K. S. Kravchuk ◽  
◽  
E. V. Gladkikh ◽  
A. S. Useinov ◽  
A. Yu. Elenskiy ◽  
...  

2012 ◽  
Vol 2 (2) ◽  
pp. 109-116 ◽  
Author(s):  
Anzhella V. Sonina

The main aim of our work was to investigate the biodiversity of coastal lichens, conditions of lichen cover formation, and study the structural and functional adaptations of Lecanora intricata (Ach.) Ach. and L. polytropa (Ehrh. ex Hoffm.) Rabenh. The investigation was carried out during 2008-2012 on cliffs both along the Murmansk (the Barents Sea) coast and the southern and western shores of the White Sea. For the evaluation of species composition, and ecotopic coenotical features of epilithic lichen growing on cliffs, the geobotanical methods have been used. In addition, the anatomical, morphological and biochemical studies of Lecanora intricata and L. polytropa have been made. 91 species have been included in the total list of lichens on the White Sea coast. On the Murmask coast of the Barents Sea, 36 lichen species had revealed. On the coastal territory, the epilithic lichens inhabit the upper littoral and supralittoral zone. The lichen cover is formed by two interacting factors: the water factor (sea) and the terrestrial vegetation. Four lichen zones were distinguished in the all studying territories. They differed by the lichen species composition and effect of the sea. The first lichen’s zone is the intrazonal structure in the complex coastal lichen cover. In Lecanora polytropa and L. intricata, structural and functional features of lichens for adaptation to unstable coastal conditions were identified. The crustose biomorphs were better adapted to temperature and degree of hydration of thalli. Formation of the smallest ascospores is reproductive strategy of epilithic lichens in extreme habitats. High content of usnic acid in the studied lichen thalli allows them to exist in the open areas exposed to solar radiation and provides the biotic regulation that affects the structure of lichen cover. Optimal ratio of algal to fungal components in the thalli of these species is necessary to maintain their life in extreme environments.


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