Diversity of carotenogenic microalgae in the White Sea polar region

2019 ◽  
Author(s):  
K Chekanov ◽  
T Fedorenko ◽  
A Kublanovskaya ◽  
D Litvinov ◽  
E Lobakova
Keyword(s):  
White Sea ◽  
Bright Light ◽  
Stress Factors ◽  
The White Sea ◽  
Metabolic Plasticity ◽  
Photosynthetic Organisms ◽  
Haematococcus Lacustris ◽  
Northern Regions ◽  
Protective Reaction ◽  
First Time

Abstract Carotenogenic microalgae are unicellular photosynthetic organisms with the ability to accumulate carotenoids. Carotenoid accumulation is a protective reaction against environmental stress factors, such as bright light, extreme temperatures, etc. It makes the survival of these microorganisms under harsh environmental conditions possible. The diversity of carotenogenic microalgae has been described in detail for Central Europe and North America, as well as for tropical and subtropical latitudes with relatively favorable environmes. However, data about these microorganisms in polar and subpolar latitudes is scarce and restricted to few reports. We isolated several strains of carotenogenic microalgae from the coastal zone of the White Sea, where they were abundant. The obtained microalgae related to four species of Chlorophytes: Haematococcus lacustris, H. rubicundus, Coelastrella aeroterrestrica, and Bracteacoccus aggregatus. The last three species have been reported for polar latitudes for the first time. Most likely, carotenogenic algae in the White Sea coast are abundant due to their high physiological and metabolic plasticity, which is essential for surviving under adverse conditions of the northern regions. Pigment composition of the strains is provided. Their predominant carotenoids were astaxanthin and β-carotene. Further, the obtained strains may be considered as potential producers of natural pigments for biotechnology.

New data on life cycles for three species of Fellodistomidae (Digenea) in the White Sea

2020 ◽  
Vol 94 ◽  
Author(s):  
D. Krupenko ◽  
A. Uryadova ◽  
A. Gonchar ◽  
G. Kremnev ◽  
V. Krapivin
Keyword(s):  
Intermediate Host ◽  
White Sea ◽  
Taxonomic Status ◽  
Life Cycles ◽  
The White Sea ◽  
Arctic Seas ◽  
Buccinum Undatum ◽  
The Family ◽  
Second Intermediate Host ◽  
First Time

Abstract Few digeneans of the family Fellodistomidae are known from the Russian Arctic seas. The taxonomic status of these species, their life cycles and host range raised recurrent questions, some of which remain unanswered. To revise the species composition and life cycles of fellodistomids in the White Sea, we searched for them in several known and suspected hosts: wolffish, flatfishes (definitive), gastropods of the family Buccinidae (second intermediate) and protobranch bivalves (first intermediate). Species identification was based both on morphology and 28S ribosomal RNA gene sequences. We found Fellodistomum agnotum in the White Sea for the first time. Buccinum undatum was proved to be intermediate host of both F. agnotum and Fellodistomum fellis, and metacercariae of F. fellis were registered from two more buccinid species: Buccinum scalariforme and Neptunea despecta. We also found metacercariae of F. agnotum and F. fellis producing eggs in the second intermediate host. Two fellodistomids were found in protobranch bivalves: sporocysts and cercariae of Steringophorus furciger in Nuculana pernula, and sporocysts with large furcocercous cercariae in Ennucula tenuis. The latter were identified as F. agnotum by molecular analysis; thus, the entire life cycle of this species was reconstructed.

The Discovery of Diamonds in Siberia and Other Northern Regions: Explorational, Historical, and Personal Notes

1991 ◽  
Vol 10 (2) ◽  
pp. 227-246 ◽  
Author(s):  
Jiří (George) Strnad
Keyword(s):  
White Sea ◽  
The Arctic ◽  
Short List ◽  
Ural Mountains ◽  
Arctic Circle ◽  
Northern Regions ◽  
History Of ◽  
Somerset Island ◽  
First Time ◽  
Made In

Only four known diamond locations are near and north of the Arctic Circle. What is believed to be the oldest diamond find in this region was made in the gravels of the Pasvik River on the U.S.S.R.-Finland-Norway border. This was followed by the discovery of the northern fields of the Yakutian diamondiferous province in the U.S.S.R. Somerset Island in the Canadian Arctic Archipelago and southwestern Greenland conclude this short list. Geographically close to the Arctic but south of the Arctic Circle are the diamond locations on the shore of the Beloye More or White Sea and in the Timan Range (U.S.S.R.), western and eastern Alaska (U.S.A.), and in the Mackenzie Mountains (Canada). Farther south and partly in the Subarctic are locations in the Ural Mountains and Yakutia (U.S.S.R.), as well as in Labrador and Saskatchewan (Canada). While the discoveries in Canada and Greenland belong to our times, the history of the others is hidden in ancient records. For the Yakutian fields, which are of major economic importance and among the world leaders in the production of gem quality diamonds, an ancient reference dating back to 1375 is presented here for the first time.

Ediacaran fossils from the Innerelv Member (late Proterozoic) of the Tanafjorden area, northeastern Finnmark

1992 ◽  
Vol 129 (2) ◽  
pp. 181-195 ◽  
Author(s):  
J. Farmer ◽  
G. Vidal ◽  
M. Moczydłowska ◽  
H. Strauss ◽  
P. Ahlberg ◽  
...  
Keyword(s):  
White Sea ◽  
Trace Fossil ◽  
Early Cambrian ◽  
The White Sea ◽  
Northern Norway ◽  
Unidentified Species ◽  
The Common ◽  
First Time ◽  
Avalon Peninsula ◽  
Concentric Organization

AbstractAn Ediacaran assemblage dominated by an unidentified species ofCyclomedusaSprigg 1947, along with species ofEdiacaria?Sprigg 1947,BeltanellaSprigg 1947,HiemaloraFedonkin 1982, andNimbia?Fedonkin 1980, is described for the first time from the Innerelv Member of the Stappogiedde Formation exposed in coastal outcrops west of Tanafjorden on Digermul Peninsula, in northeastern Finnmark, northern Norway. The fossil assemblage is dominated by discoidal forms which share certain affinities with the cosmopolitan genera.CyclomedusaandEdiacaria. However, our specimens differ from these and other discoidal Ediacaran fossils in the absence of radial sculpture. This, along with a basically concentric organization, are characteristics shared withKullingiafrom the Dividal Group of northern Scandinavia, the White Sea, Podolia, and northwestern Canada, along with undescribed discoidal remains from the Charnian Supergroup, Charnwood Forest, Leicestershire, England, and the Conception Group, Avalon Peninsula, Newfoundland.Our discovery of an Ediacaran-type assemblage within the Middle Innerelv Member provides support for previous suggestions of a late Vendian age for this sequence. This general conclusion is consistent with the occurrence of early Cambrian taxa, including the trace fossilPhycodes, and the problematical formsVendotaeniaandSabellidites,in basal portions of the Lower Breivik Formation, within the same stratigraphie section. The lowest formally-proposed faunal zone in northern Scandinavia is theKullingiaZone, based on the occurrence of the fossil medusoidKullingia concentricain Member III (Middle Sandstone C) of the Dividal Group, northern Scandinavia.Kullingiais a distinctly chambered form that was probably pelagic. In contrast,Cyclomedusa,and related genera of the so-calledCyclomedusaplexus, comprise an informal grouping of intergrading, probably benthic, taxa that possess radial and/or concentric organization. In light of the intergradational nature of taxa, present difficulties in taxonomic interpretation and correlation, and the abundance of cyclomedusoids in many Ediacaran assemblages, we suggest that the concept of theKullingiaZone, as originally defined for northern Scandanavia, be broadened to include the common form genera of theCyclomedusaplexus, inclusive of the occurrences in the Innerelv Member described herein. It is our hope that additional fieldwork will provide a basis for more refined taxonomic evaluations and biozonation.

Halocladius variabilis(Diptera: Chironomidae): a marine insect symbiotic with seaweeds from the White Sea, Russia

2009 ◽  
Vol 89 (7) ◽  
pp. 1381-1385 ◽  
Author(s):  
Elena R. Tarakhovskaya ◽  
David J. Garbary
Keyword(s):  
Intertidal Zone ◽  
White Sea ◽  
Field Studies ◽  
Tidal Height ◽  
Subtidal Zone ◽  
The White Sea ◽  
Eastern Canada ◽  
Primary Host ◽  
Mutualistic Symbiosis ◽  
First Time

The commensal (and possibly mutualistic) symbiosis between the marine chironomid,Halocladius variabilis, and brown algal epiphytes ofFucus vesiculosusandAscophyllum nodosumis described for the first time from Europe, based on field studies from the White Sea, Russia. While the primary host,Elachista fucicola, and the secondary host,A. nodosum, are the same as in eastern Canada where the symbiosis was first described, White Sea populations have a wider range of primary hosts that includePylaiella littoralisandDictyosiphon foeniculaceus. About 64% ofE. fucicolathalli onA. nodosumin the low intertidal zone were colonized. Significantly lower frequencies were found onE. fucicolawhen the latter was epiphytic onF. vesiculosusat the same tidal height or on either secondary host when they were in the subtidal zone. For a given tidal height, or secondary host, frequency ofH. variabiliswas reduced onP. littoralisand further reduced onD. foeniculaceus. We suggest that subtidal populations are colonized by dispersal of larvae from the intertidal zone on to suitable substrata, and that there is limited potential for these individuals to reach the intertidal zone as adults for reproduction.

Taxonomic review of microlaimids with description of five species from the White Sea (Nematoda: Chromadoria)

2005 ◽  
Vol 14 (1) ◽  
pp. 1-16
Author(s):  
S.V. Kovalyev ◽  
A.V. Tchesunov
Keyword(s):  
White Sea ◽  
The White Sea ◽  
Taxonomic Review ◽  
The Family ◽  
First Time

Taxonomic problems in the family Microlaimidae are discussed, and a key to the genera of Microlaimidae is given. Five species of Microlaimus are recorded from the White Sea for the first time. Microlaimus paraconothelis sp. n. is described from the White Sea.

scholarly journals Lepidoptera of Terskij seashore of the Kola Peninsula, Northwestern Russia

2006 ◽  
Vol 17 (2) ◽  
pp. 123-129
Author(s):  
Mikhail Kozlov ◽  
Jaakko Kullberg
Keyword(s):  
Kola Peninsula ◽  
White Sea ◽  
The White Sea ◽  
First Time ◽  
Regional Fauna ◽  
Northwestern Russia

The fauna of moths and butterflies of the Western part of the Kola Peninsula is reasonably well documented, while data from Eastern part are scarce, and only five species have so far been recorded from the White Sea shore between Kuzomen and Ponoi. Here we report the results of sampling conducted on June 29–July 2, 2004, in 14 sites along a 150 km stretch between Kuzomen and Pulonga. Among 146 collected species of Lepidoptera, 12 are recorded for the first time from the Kola Peninsula, which increased the regional fauna to 688 species. For Udea nebulalis, which is for the first time reported from Russia, we provide additional records from Karelia.

Checklist of Rhodophyta of the White Sea (the Arctic Ocean)

2017 ◽  
Vol 60 (1) ◽  
Author(s):  
Tatiana A. Mikhaylova
Keyword(s):  
Species Composition ◽  
Barents Sea ◽  
White Sea ◽  
The Arctic ◽  
Algal Flora ◽  
The White Sea ◽  
Northern Regions ◽  
Red Algal ◽  
Careful Revision ◽  
Bibliographic Search

AbstractMost data on the White Sea flora are scattered in Russian publications and are largely inaccessible to researchers. The aim of the present work is to compile a checklist as well as to provide verification of the species composition of the Rhodophyta of the White Sea. This checklist is based on an exhaustive bibliographic search. As a result of a careful revision, a total of 61 species of Rhodophyta has been revealed, and 17 species and one forma were excluded on the basis of being doubtful records or misidentifications. The distribution of four species in the White Sea was clarified. Nineteen species occur throughout the White Sea, six species are widespread except for Mezen Bay, whereas seven taxa are restricted to the northern regions of the White Sea. The analysis of the species composition permits the red algal flora of the White Sea to be interpreted as representing the depleted Barents Sea flora. An extensive bibliography and data on the presence of the specimens in the Komarov Botanical Institute of the Russian Academy of Sciences are given.

Natural Communities of Carotenogenic Chlorophyte Haematococcus lacustris and Bacteria from the White Sea Coastal Rock Ponds

2019 ◽  
Vol 79 (4) ◽  
pp. 785-800 ◽  
Author(s):  
Anna Kublanovskaya ◽  
Alexei Solovchenko ◽  
Tatyana Fedorenko ◽  
Konstantin Chekanov ◽  
Elena Lobakova
Keyword(s):  
White Sea ◽  
The White Sea ◽  
Haematococcus Lacustris ◽  
Natural Communities

M. Gorky and Lada Mogilyanskaya

2021 ◽  
Vol 1 (6) ◽  
pp. 141-147
Author(s):  
Anastasia G. Plotnikova ◽  
Keyword(s):  
White Sea ◽  
Construction Site ◽  
The White Sea ◽  
High Ranking ◽  
History Of ◽  
First Time

The article reconstructs the biography of a little-known Ukrainian poetess Lada Mogylianskaya and the history of her relationship with M. Gorky; fragments of her poems in Ukrainian and Russian are given. Mogilyanskaya was first repressed in 1929 in the case of the Ukrainian “Democratic Union”, passed through the Solovetsky prison, D.S. Likhachev. Subsequently, she ended up at the construction site of the White Sea-Baltic Canal, was released ahead of schedule and received an award sign. From 1934 she worked in the cultural and educational department of the Dmitrov prison and on the construction of the Moscow — Volga Canal. M. Gorky repeatedly took part in the fate of Mogilyanskaya, appealing to high-ranking officials and petitioning to alleviate her fate. In 1937, after the arrest of G.G. Yagoda and the head of Dmitlag S.G. Firin, she was repressed a second time and died. The article also examines the work of the cultural and educational departments of the GULAG, in which representatives of the creative intelligentsia could escape from overwhelming, destructive labor. For the first time, the article introduces into scientific circulation M. Gorky's letters to various persons related to the fate of the poetess, letters to him from the Ukrainian philologist M.M. Mogilyansky, poet S. Marshak and other documents stored in the A.M. Gorky’s archive in Moscow.

scholarly journals THE COMMON AND THE UNIQUE:THE ROCK ART OF THE WHITE SEA

2019 ◽  
Author(s):  
Л. Яник
Keyword(s):  
White Sea ◽  
Rock Art ◽  
Northern Europe ◽  
The White Sea ◽  
The Past ◽  
Early Evidence ◽  
Number Of Factors ◽  
Sea Mammals ◽  
The Common ◽  
First Time

Основываясь на представлениях об общности и уникальности, автор статьи утверждает, что наскальное искусство Белого моря, имея много общего с наскальным искусством Северной Европы в целом, в то же время обладает уникальными качествами. Петроглифы Белого моря, которые создавались в период примерно между 5625 и 3666 лет назад представителями сообществ присвающего хозяйства, предоставляют нам возможность заглянуть в прошлое. Первыми в истории человечества эти изображения дают осязаемую информацию об охоте на морских млекопитающих с помощью гарпунов и поплавков. Кроме того, на скалах Беломорья представлены самые ранние изображения лыжников они показывают, что охота на лыжах представляла собой активный процесс перемещения в ландшафте. By employing the concepts of commonality and uniqueness, this paper argues that the rock art the White Sea White while sharing a number of factors with other Northern Europe rock art has unique qualities. The White Sea petroglyphs were created between c. 5625 and c. 3666 years ago by food procuring communities give us a window on the past. For the first time in human history these images provide us with a tangible record of hunting for sea mammals with harpoon and float, providing early evidence for deep-sea exploitation. Furthermore, these petroglyphs provide the earliest depictions of humans on skis and show how hunting on skis took place as an active process of moving in the landscape.

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