Polychaetes (Annelida: Polychaeta) of the Kara Sea

2021 ◽  
Vol 325 (2) ◽  
pp. 183-196
Author(s):  
S.Yu. Gagaev
Keyword(s):  
Trophic Structure ◽  
Kara Sea ◽  
Trophic Groups ◽  
State University ◽  
Ecological Situation ◽  
Saint Petersburg ◽  
The Pacific ◽  
Atlantic Origin ◽  
Resistance To Stress ◽  
First Time

As a result of processing materials from the expeditions of the Saint-Petersburg State University in 2012–2013 and the Transarctic expedition of 2019, 131 polychaete taxa were recorded, of which 124 were identified to species. On the basis of data from previous and recent collections, the general list of polychaetes in the Kara Sea was updated; it includes 209 species belonging to 98 genera, 37 families, and 15 orders. The following species are reported for the first time from the sea: Abyssoninoe hibernica (McIntosh, 1903), Ampharete falcata Eliason, 1955, Brada rugosa Hansen, 1882, Microclymene acirrata Arwidsson, 1906; Nephtys pente Rainer, 1984; Ophelina abranchiata Stop-Bowitz, 1948, Scolelepis burkovskii Sikorski, 1994, and Travisia forbesii Johnson, 1840. Polychaetes were found at all stations; the number of species per station ranged from 1 to 28. Shannon’s indices (H'SpA and H'spB) showed that at most stations the diversity of species was high and resistance to stress (DE') was quite satisfactory. Only in a few cases some tension existed in the ecological situation, estimated by the index of difference in evenness and this applies, to an overwhelming degree, to the shallow water stations in the area of the outlet from the Ob and Yenisei bays. New data show a more pronounced Arctic character of the Kara Sea fauna in comparison with the polychaete fauna of neighboring seas. The influence of the Pacific and Atlantic oceans both on the polychaete fauna of the Kara Sea and on the polychaete fauna of the neighboring seas is noticeable and natural, which is confirmed by changes in the proportion of species of Pacific and Atlantic origin. The trophic structure of polychaetes is represented by four main groups; the distribution of trophic groups is closely related to environmental conditions.

The Northern Sea Route, 1997

Polar Record ◽  
1998 ◽  
Vol 34 (190) ◽  
pp. 219-224 ◽  
Author(s):  
Lawson W. Brigham
Keyword(s):  
Kara Sea ◽  
Synthetic Aperture ◽  
Russian Arctic ◽  
Phase 2 ◽  
Research Projects ◽  
Radar Images ◽  
Northern Sea Route ◽  
Service Information ◽  
The Pacific ◽  
First Time

Abstract1997 was an important year for Russia's Northern Sea Route (NSR) in terms of foreign interest. The first full transits of the NSR by western merchant ships were made. The International Northern Sea Route Programme (INSROP) continued into phase 2 of its research projects, and planning proceeded for a European Union-sponsored demonstration voyage to the Ob' River. The nuclear icebreaker Arktika returned to Arctic operations, while two icebreakers were removed from polar service. Information about the NSR became more widely available with the distribution of an English translation of a navigation guide. Winter operations continued in the Kara Sea, albeit reduced, and a limited number of summer voyages to Russian Arctic ports originated from the Pacific rim. RADARS AT synthetic aperture radar images of sea ice along the NSR were used for the first time during several demonstration voyages.

Mosses and lichens of Shokalsky Island (Kara Sea, Yamal-Nenets Autonomous Area)

2020 ◽  
Vol 54 (2) ◽  
pp. 497-513 ◽  
Author(s):  
L. N. Beldiman ◽  
I. N. Urbanavichene ◽  
V. E. Fedosov ◽  
E. Yu. Kuzmina
Keyword(s):  
Plant Communities ◽  
Species Distribution ◽  
Arctic Tundra ◽  
Kara Sea ◽  
Lichenicolous Fungi ◽  
South West ◽  
West Part ◽  
First Time ◽  
Nenets Autonomous ◽  
Made In

We studied in detail a moss-lichen component of Shokalsky Island vegetation for the first time and identified 79 species of mosses and 54 species and 2 subspecies of lichens and lichenicolous fungi. All species of mosses and 23 species and 2 subspecies of lichens and lichenicolous fungi are recorded for the first time for the island. The study is based on collections made in South West part of the island, in arctic tundra. We also explored the participation of the mosses and lichens in the main types of plant communities and the species distribution in 10 ecotopes. The paper describes the noteworthy findings (Abrothallus parmeliarum, Aongstroemia longipes, Arthonia peltigerea, Caloplaca caesiorufella, Catillaria stereocaulorum, Ceratodon heterophyllus, Lecanora leptacinella, Sphagnum concinnum, S. olafii) and features of bryo- and lichenoflora of Shokalsky Island.

The All-Russian conference «Development of Geobotany: History and Present» (Saint Petersburg, 31 January—2 February 2011)

2011 ◽  
pp. 93-97
Author(s):  
O. I. Sumina
Keyword(s):  
Plant Ecology ◽  
State University ◽  
Saint Petersburg ◽  
Russian Conference

From 31 January to 2 February 2011 in St. Petersburg state University was held All-Russian conference "Development of geobotany: history and modernity" devoted to the 80 anniversary of the Department of geobotany and plant ecology of St. Petersburg state University and anniversaries of its teachers.

Peronosporales of Skadovsky Zvenigorod Biological Station (Moscow Region)

2018 ◽  
Vol 52 (1) ◽  
pp. 91-100
Author(s):  
E. Yu. Blagoveshchenskaya
Keyword(s):  
Downy Mildew ◽  
European Part ◽  
Moscow Region ◽  
State University ◽  
Biological Station ◽  
Annotated List ◽  
European Part Of Russia ◽  
First Time ◽  
Moscow State University

The paper provides the results of seven-year study of downy mildew on Skadovsky Zvenigorod Biological Station of Moscow State University (ZBS MSU, Moscow Region). A total of 29 species of Peronosporales (Oomycota) were revealed during the study. An annotated list of species is presented, among them Peronospora anemones is recorded for the first time for Russia, P. chelidonii and P. stachydis are new for the European part of Russia, 8 species are new for the Moscow Region.

scholarly journals Intermittent but Rapid Changes to Coastal Landscapes: The Tsunami and El Niño Wave-Formed Sea Arch at Laie Point, Oahu, Hawaii, U.S.A.

Geosciences ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 147
Author(s):  
Benjamin R. Jordan
Keyword(s):  
El Niño ◽  
El Nino ◽  
Sand Dunes ◽  
Tsunami Source ◽  
Tsunami Waves ◽  
Storm Waves ◽  
The Pacific ◽  
Coastal Landscapes ◽  
Wave Heights ◽  
First Time

Kukuiho’olua Island is an islet that lies 164 m due north of Laie Point, a peninsula of cemented, coastal, Pleistocene and Holocene sand dunes. Kukuiho’olua Island consists of the same dune deposits as Laie Point and is cut by a sea arch, which, documented here for first time, may have formed during the 1 April 1946 “April Fools’s Day Tsunami.” The tsunami-source of formation is supported by previous modeling by other authors, which indicated that the geometry of overhanging sea cliffs can greatly strengthen and focus the force of tsunami waves. Additional changes occurred to the island and arch during the 2015–2016 El Niño event, which was one of the strongest on record. During the event, anomalous wave heights and reversed wind directions occurred across the Pacific. On the night of 24–25 February 2016, large storm waves, resulting from the unique El Niño conditions washed out a large boulder that had lain within the arch since its initial formation, significantly increasing the open area beneath the arch. Large waves also rose high enough for seawater to flow over the peninsula at Laie Point, causing significant erosion of its upper surface. These changes at Laie Point and Kukuio’olua Island serve as examples of long-term, intermittent change to a coastline—changes that, although infrequent, can occur quickly and dramatically, potentially making them geologic hazards.

Arthropods in the nests of lesser spotted eagle (Aquila pomarina)

Biologia ◽  
2009 ◽  
Vol 64 (5) ◽  
Author(s):  
Ján Krištofík ◽  
Peter Mašán ◽  
Zbyšek Šustek ◽  
Dušan Karaska
Keyword(s):  
Trophic Group ◽  
Trophic Groups ◽  
Significant Component ◽  
Free Living ◽  
Parasitic Species ◽  
Number Of Species ◽  
Aquila Pomarina ◽  
Investigation Period ◽  
First Time

AbstractIn 2001–2007, altogether 57 nests of lesser spotted eagle were collected in the Orava region in northwestern Slovakia and four groups of arthropods were extracted from them. Richest in number of species and individuals were mites (23 species, 17,500 ind.), followed by beetles (12 species, 725 ind.), whereas pseudoscorpions were represented only by Pselaphochernes scorpioides (39 ind.) and fleas by Ceratophyllus garei (3 ind.). Unlike nests of other birds, free-living mites predominated in the nests fauna (83% of individuals), followed by nidicolous species with more or less free relationship to the nests, while parasitic species represented only a negligible part of the fauna. For the first time we observed phoresy of Nenteria pandioni, a specific and abundant mite in the eagles’ nests, on the nidicolous staphylinid Haploglossa puncticollis. The beetle fauna in the nests was much poorer than in nests of other birds. The predatory H. puncticollis was dominant in the nests (83%) and occurred continuously during the whole investigation period. Other beetles, even the widely distributed nidicols such as the histerid Gnathoncus buyssoni, were found rarely in nests. Predators were also the only abundant trophic group of beetles in the nests, while other trophic groups of beetles abundantly co-occur in nests of majority of other birds. The occurrence of all beetles was very unevenly distributed during the investigation period, but was positively correlated with occurrence of mites. The relatively low number of species and individuals of mites and beetles in the lesser spotted eagle nests resulted from their position on tree tops, at a height of 20–30 m and their quick drying out by sun and wind. It was also indicated by an enormously low number of species and individuals of mycetophagous beetles, which represent a significant component of the fauna in nests of other birds.

FEATURES OF MOLECULAR ANALYSIS AS A REAL-TIME INTERNET SERVICE

2021 ◽  
Author(s):  
М.В. ЗАХАРОВ
Keyword(s):  
Traffic Flow ◽  
Simulation Modeling ◽  
General Purpose ◽  
Service Delivery Model ◽  
State University ◽  
Network Delay ◽  
Software Environment ◽  
Internet Service ◽  
Saint Petersburg ◽  
Proposed Model

Приведен обзор особенностей применения портативныхNIR спектрометров общего назначения, используемых для анализа состава продуктов питания и лекарственных средств. Представлена модель агрегированного потока сетевого трафика от нескольких спектрометров и модель предоставления услуги, обеспечивающая снижение сетевой задержки и объема передаваемых данных. Рассмотрен метод построения сети на основе граничных вычислений для снижения сетевой задержки. Для проверки предложенной модели и метода проведено имитационное моделирование в среде AnyLogic. The Bonch-Bruevich Saint-Petersburg State University of Telecommunications The article provides an overview of the features of the use of portable general-purpose NIR spectrometers to analyze the composition of food or medicines. A model of the aggregated network traffic flow of several spectrometers and a service delivery model, which provides the reduction of network delay and amount of transmitted data, are presented. A method of constructing a network based on edge computing for reduction of network delay is considered. To verify the proposed model and method simulation modeling was carried out in the software environment AnyLogic.

Hebrew Incunabula in the Russian Researchers’ Publications. Bibliographic Review

2021 ◽  
Vol 70 (1) ◽  
pp. 21-34
Author(s):  
Semen M. Iakerson
Keyword(s):  
Religious Community ◽  
National Library ◽  
Saint Petersburg ◽  
15Th Century ◽  
Russian State ◽  
History Of ◽  
State Library ◽  
Academy Of Sciences ◽  
First Time ◽  
Private Collections

Hebrew incunabula amount to a rather modest, in terms of number, group of around 150 editions that were printed within the period from the late 60s of the 15th century to January 1, 1501 in Italy, Spain, Portugal and Turkey. Despite such a small number of Hebrew incunabula, the role they played in the history of the formation of European printing cannot be overlooked. Even less possible is to overestimate the importance of Hebrew incunabula for understanding Jewish spiritual life as it evolved in Europe during the Renaissance.Russian depositories house 43 editions of Hebrew incunabula, in 113 copies and fragments. The latter are distributed as following: the Institute of Oriental Manuscripts of the Russian Academy of Sciences — 67 items stored; the Russian State Library — 38 items; the National Library of Russia — 7 items; the Jewish Religious Community of Saint Petersburg — 1 item. The majority of these books came in public depositories at the late 19th — first half of the 20th century from private collections of St. Petersburg collectors: Moses Friedland (1826—1899), Daniel Chwolson (1819—1911) and David Günzburg (1857—1910). This article looks into the circumstances of how exactly these incunabula were acquired by the depositories. For the first time there are analysed publications of Russian scholars that either include descriptions of Hebrew incunabula (inventories, catalogues, lists) or related to various aspects of Hebrew incunabula studies. The article presents the first annotated bibliography of all domestic publications that are in any way connected with Hebrew incunabula, covering the period from 1893 (the first publication) to the present. In private collections, there was paid special attention to the formation of incunabula collections. It was expressed in the allocation of incunabula as a separate group of books in printed catalogues and the publication of research works on incunabula studies, which belonged to the pen of collectors themselves and haven’t lost their scientific relevance today.

THE PROJECT OF STAGING "KHOVANSHCHINA" BY M. P. MUSSORGSKY IN B.V. ASAFYEV’S ORCHESTRATION

2020 ◽  
Vol 1 (2) ◽  
pp. 95-102
Author(s):  
V. A. Aleksandrova ◽  
Keyword(s):  
The State ◽  
National Museum ◽  
State Archive ◽  
Central State ◽  
Saint Petersburg ◽  
Russian State ◽  
Archival Documents ◽  
History Of ◽  
Orchestral Score ◽  
First Time

The article is devoted to the history of an unrealized performance of M. P. Mussorgsky’s opera "Khovanshchina" orchestrated by B. V. Asafyev. On the basis of archival documents, stored in the Russian State Archive of Literature and Arts, the Russian National Museum of Music, Central State Archive of Literature and Art of Saint Petersburg, the Bolshoi Theatre Museum, most of which are introduced into scientific circulation for the first time, studied the circumstances under which the opera was planned to be staged in the State Academic Theatre of Opera and Ballet (nowadays — the Mariinsky Theatre). Fragments from the reports of the Artistic Council of Opera at the State Academic Theatre of Opera and Ballet meetings, the correspondence between B. V. Asafyev and P. A. Lamm, the manuscript "P. A. Lamm. A Biography" by O. P. Lamm and other unpublished archival documents are cited. The author comes to the conclusion that most attempts to perform "Khovanshchina" were hindered by the difficult socio-political circumstances of the 1930s, while the existing assumptions about the creative failure of the Asafyev’s orchestration don’t find clear affirmation, neither in historical documents, nor in the existing manuscript of the orchestral score.

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