A rare moss Cynodontium suecicum (Rhabdoweisiaceae, Bryophyta) on the Barents Sea coast of the Kola Peninsula: morphological and molecular study

2021 ◽  
Vol 55 (2) ◽  
pp. 427-438
Author(s):  
O. A. Belkina ◽  
A. A. Vilnet
Keyword(s):  
Kola Peninsula ◽  
Nuclear Dna ◽  
Barents Sea ◽  
Sequence Data ◽  
Molecular Study ◽  
Nucleotide Sequence Data ◽  
The Barents Sea ◽  
Cytoplasmic Dna ◽  
The Stability ◽  
Sea Coast

Specimens of the rare species Cynodontium suecicum (Rhabdoweisiaceae, Bryophyta) were collected near Drozdovka Bay on the Barents Sea coast of the Kola Peninsula (Russia) in 2016. They were compared with samples of C. suecicum from the Teriberka area (also the coast of the Barents Sea) gathered in 1977 by R. N. Schljakov. The morphological features of both groups of samples were studied, and nucleotide sequence data for ITS1-2 nrDNA and trnL-F cpDNA were obtained. Molecular analysis suggested C. suecicum as a hybrid that inherited cytoplasmic DNA from C. tenellum and nuclear DNA from Kiaeria blyttii. Taking into account the rather clear morphological delimitation against other species, combined with the stability of genetic characters, we believe that S. suecicum should be retained as a species-level taxon.

scholarly journals New species of Scolelepis (Polychaeta, Spionidae) from the Norwegian coast and Barents Sea with a brief review of the genus

2015 ◽  
Vol 35 ◽  
pp. 9 ◽  
Author(s):  
Andrey Sikorski ◽  
Lyudmila Pavlova
Keyword(s):  
New Species ◽  
Kola Peninsula ◽  
Climate Warming ◽  
Barents Sea ◽  
Identification Key ◽  
The Arctic ◽  
Atlantic Sector ◽  
Norwegian Coast ◽  
The Barents Sea

<p>The species <em>Scolelepis finmarchicus</em> sp. nov. is described from the Norwegian and Barents Seas along the northern Norwegian coast and Kola peninsula. The occurrence of this species in the Kola Bay could be seen as a sign of climate warming in the area. Taxonomic issues existing in the genus <em>Scolelepis</em> within the area along the Norwegian coast and in the Barents Sea are briefly touched upon. Seven species belonging to <em>Scolelepis</em> have recently been recorded from the Atlantic sector of the Arctic. <em>Scolelepis</em> (<em>S</em>.) <em>matsugae</em> Sikorski, 1994 is newly synonymized with <em>S</em>. (<em>S</em>.) <em>laonicola</em> (Tzetlin, 1985). This article provides a brief review of <em>Scolelepis</em> together with an identification key for the genus from the Atlantic sector of the Arctic</p>

Heavy metals in the atmospheric precipitation on the Barents Sea coast

2010 ◽  
Vol 35 (5) ◽  
pp. 333-340 ◽  
Author(s):  
N. I. Golubeva ◽  
L. V. Burtseva ◽  
V. A. Ginzburg
Keyword(s):  
Heavy Metals ◽  
Barents Sea ◽  
Atmospheric Precipitation ◽  
The Barents Sea ◽  
Sea Coast

scholarly journals Qualitative and Quantitative Characteristics of Soil Microbiome of Barents Sea Coast, Kola Peninsula

2021 ◽  
Vol 9 (10) ◽  
pp. 2126
Author(s):  
Maria Korneykova ◽  
Dmitry A. Nikitin ◽  
Vladimir А. Myazin
Keyword(s):  
Kola Peninsula ◽  
Barents Sea ◽  
Ribosomal Gene ◽  
Ribosomal Genes ◽  
Soil Microbiome ◽  
Fungal Mycelium ◽  
Total Biomass ◽  
Gene Copies ◽  
Fungal Propagules ◽  
Sea Coast

The soil microbiome of the Barents Sea coast of the Kola Peninsula is here characterized for the first time. The content of copies of ribosomal genes of archaea, bacteria, and fungi was determined by real-time PCR. Reserves and structure of biomass of soil microorganisms such as total biomass of fungi and prokaryotes, length and diameter of mycelium of fungi and actinomycetes, proportion of mycelium in biomass, number of spores and prokaryotic cells, proportion of small and large fungal propagules, and morphology of mycobiota spores were determined. The largest number of ribosomal gene copies was found for bacteria (from 6.47 × 109 to 3.02 × 1011 per g soil). The number of copies of ribosomal genes of fungi and archaea varied within 107–109 copies of genes/g soil. The biomass of microorganisms (prokaryotes and fungi in total) varied from 0.023 to 0.840 mg/g soil. The share of mycobiota in the microbial biomass ranged from 90% to 97%. The number of prokaryotes was not large and varied from 1.87 × 108 to 1.40 × 109 cells/g of soil, while the biomass of fungi was very significant and varied from 0.021 to 0.715 mg/g of soil. The length of actinomycete mycelium was small—from 0.77 to 88.18 m/g of soil, as was the length of fungal hyphae—an order of magnitude higher (up to 504.22 m/g of soil). The proportion of fungal mycelium, an active component of fungal biomass, varied from 25% to 89%. Most (from 65% to 100%) of mycobiota propagules were represented by specimens of small sizes, 2–3 microns. Thus, it is shown that, despite the extreme position on the mainland land of Fennoscandia, local soils had a significant number of microorganisms, on which the productivity of ecosystems largely depends.

Grain-size and mineral composition of the upper layer of sediments of the Barents Sea

2021 ◽  
pp. 398-415
Author(s):  
N.V. Politova ◽  
◽  
T.N. Alekseeva ◽  
N.V. Kozina ◽  
M.D. Kravchishina ◽  
...  
Keyword(s):  
Grain Size ◽  
Shallow Water ◽  
Kola Peninsula ◽  
Mineral Composition ◽  
Surface Sediments ◽  
Barents Sea ◽  
Novaya Zemlya ◽  
The Barents Sea ◽  
Pelitic Fraction ◽  
Mixed Sediments

The paper presents data from grain size and mineralogical analyzes of surface bottom sediment samples obtained on several cruises of the R/V Akademik Mstislav Keldysh (2016–2018) from different parts of the Barents Sea. Pebble and gravel material is found in surface sediments in the form of impurities scattered throughout the sea. Such a chaotic distribution pattern is apparently associated with ice separation. Coarse material is most common in the Barents Sea off the coast of the Kola Peninsula, off the coast of Novaya Zemlya, Spitsbergen, where it accumulates due to coastal abrasion. In addition, a fraction >1 mm is widespread at depths where fine fractions are stirred and leached. The most common sediments in coastal shallow water are sands. Sands (0.1–1 mm) are widespread in the southern and southeastern regions of the sea, in the region of the Pechora polygon, the Kaninsky shallow water, the Kola Peninsula, and in the northwest, off the coast of Svalbard. With increasing depth, the sands are replaced by mixed sediments with a low admixture of pelite. Pelitic sediments are prevalent in the central part of the sea. Precipitation with a pelitic fraction (<0.01 mm) of more than 50% occupy about 70% of the Barents Sea. They are widespread in deep-sea hollows and trenches, as well as in the numerous fiords of the North Island of Novaya Zemlya and Franz Josef Land. Surface sediments have a predominantly terrigenous composition; only at the border with the Norwegian Sea the proportion of biogenic material increases. The mineral composition of sediments is dominated by quartz and feldspars, clay minerals are mainly represented by illite, smectite and kaolinite.

scholarly journals THE STABILITY OF MACROALGAE OF THE BARENTS SEA TO OIL POLLUTION

2017 ◽  
Vol 13 (3) ◽  
pp. 103-108
Author(s):  
O.V. Stepanyan ◽  
◽  
G.G. Matishov ◽  
V.V. Kulygin ◽  
◽  
...  
Keyword(s):  
Barents Sea ◽  
Oil Pollution ◽  
The Barents Sea ◽  
The Stability

Soil microfungi of the Barents Sea coast (near Varandey settlement)

2009 ◽  
Vol 43 ◽  
pp. 113-121
Author(s):  
I. Yu. Kirtsideli
Keyword(s):  
Barents Sea ◽  
Trichoderma Viride ◽  
High Concentration ◽  
Acremonium Strictum ◽  
The Barents Sea ◽  
The Media ◽  
Soil Dilution ◽  
Geomyces Pannorum ◽  
Soil Microfungi ◽  
Sea Coast

The paper is a report of soil microfungi of the Barents Sea coast. 49 species of saprotrophic filamentous microfungi belonging to 22 genera were isolated by soil dilution methods from three tundra locations. 82-89% of strains were psychrophiles and psychrotrophs. 76-92% of isolates had tolerance to high concentration of NaCl in the media. Geomyces pannorum (Pseudogymnoascus roseus), Penicillium chrysogenum, P. expansum and Trichoderma viride were most often in these soil samples in all habitats studied. The microfungi Acremonium strictum and Phoma sp. were very frequent in different peat-bog habitats.

Epilithic lichens and their morphological adaptations to the conditions of the White and Barents Seas coast (Russian Arctic)

2012 ◽  
Vol 2 (2) ◽  
pp. 109-116 ◽  
Author(s):  
Anzhella V. Sonina
Keyword(s):  
Species Composition ◽  
Barents Sea ◽  
White Sea ◽  
Lichen Species ◽  
The White Sea ◽  
The Barents Sea ◽  
Lichen Cover ◽  
Functional Features ◽  
Epilithic Lichens ◽  
Sea Coast

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.

scholarly journals Paleoecological characteristics of the Barents sea coast during the late holocene by the example of Sredniy Peninsula

2018 ◽  
Vol 64 (4) ◽  
pp. 391-406
Author(s):  
T. V. Sapelko ◽  
E. S. Nosevich ◽  
M. A. Kulkova ◽  
A. I. Murashkin ◽  
E. M. Kolpakov
Keyword(s):  
Late Holocene ◽  
Barents Sea ◽  
Temperature Drop ◽  
The Barents Sea ◽  
Tundra Vegetation ◽  
Functional Zones ◽  
Radiocarbon Data ◽  
House Structure ◽  
Metal Age ◽  
Sea Coast

We received results of complex palaeoecological research at south-west Barents Sea coast. In Periayarvi 1 settlement (Sredniy Peninsula) discovered by V. Ya. Shumkin in 1994, archeological excavations of two house-structures were performed. We sampled the sequence in the house-structure 16 date to the Early Metal Age and we studied it with archaeological, palynological, geochemical and radiocarbon methods. The sequence in the house-structure 16 settlement include sand layers in the bottom, the upper part consists of slightly decomposed peat. The radiocarbon data obtained from the charcoal sample from the fireplace in the middle of the house-structure is 2920±70 C14 BP, which correlates with result of pollen analysis. According ac to pollen data, the sequence formation started at the first half of the Subboreal period during the spread of tundra vegetation and then vegetation changed to forest tundra while the climate was getting more comfortable for humans. At the Subatlantic period tundra recovers because of temperature drop. The landscape is getting similar to the modern one. According geochemical indications main functional zones of house-structure were distinguished, and that provides necessary information about main characteristics of living conditions. The complex of methods allows to date Periayarvi 1 settlement to the Early Metal Age. In the results we made reconstruction of palaeoenvironmental conditions in the Late Holocene at the Barents Sea coast.

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