Cytogenetic Characterization of Eight Odonata Species Originating from the Curonian Spit (the Baltic Sea, Russia) Using C-Banding and FISH with 18S rDNA and Telomeric (TTAGG)n Probes

2017 ◽  
Vol 153 (3) ◽  
pp. 147-157 ◽  
Author(s):  
Valentina G. Kuznetsova ◽  
Anna Maryańska-Nadachowska ◽  
Nazar A. Shapoval ◽  
Boris A. Anokhin ◽  
Anatoly P. Shapoval
Keyword(s):  
Baltic Sea ◽  
18S Rdna ◽  
The Baltic Sea ◽  
Curonian Spit ◽  
C Banding ◽  
Insect Order ◽  
The Family ◽  
Cytogenetic Characterization ◽  
The Baltic ◽  
Almost All

We studied the karyotypes of 8 dragonfly species originating from the Curonian Spit (the Baltic Sea, Russia) using C-banding and FISH with 18S rDNA and “insect” telomeric (TTAGG)n probes. Our results show that Leucorrhinia rubicunda, Libellula depressa, L. quadrimaculata, Orthetrum cancellatum, Sympetrum danae, and S. vulgatum from the family Libellulidae, as well as Cordulia aenea and Epitheca bimaculata from the family Corduliidae share 2n = 25 (24 + X) in males, with a minute pair of m-chromosomes being present in every karyotype except for that of C. aenea. Major rDNA clusters are located on one of the large pairs of autosomes in all the species. No hybridization signals were obtained by FISH with the (TTAGG)n probe in the examined species with the only exception of S. vulgatum. In this species, clear signals were detected at the ends of almost all chromosomes. This finding raises the possibility that in Odonata the canonical “insect” (TTAGG)n telomeric repeat is in fact present but in very low copy number and is consequently difficult to detect by in situ hybridization. We conclude that more work needs to be done to answer questions about the organization of telomeres in this very ancient and thus phylogenetically important insect order.

scholarly journals Description of Polystyrenella longa gen. nov., sp. nov., isolated from polystyrene particles incubated in the Baltic Sea

2020 ◽  
Vol 113 (12) ◽  
pp. 1851-1862 ◽  
Author(s):  
Stijn H. Peeters ◽  
Sandra Wiegand ◽  
Nicolai Kallscheuer ◽  
Mareike Jogler ◽  
Anja Heuer ◽  
...  
Keyword(s):  
Cell Division ◽  
Baltic Sea ◽  
Cell Biology ◽  
Aquatic Ecosystems ◽  
Novel Species ◽  
The Baltic Sea ◽  
Motile Cells ◽  
The Family ◽  
The Baltic ◽  
Almost All

AbstractPlanctomycetes occur in almost all aquatic ecosystems on earth. They have a remarkable cell biology, and members of the orders Planctomycetales and Pirellulales feature cell division by polar budding, perform a lifestyle switch from sessile to motile cells and have an enlarged periplasmic space. Here, we characterise a novel planctomycetal strain, Pla110T, isolated from the surface of polystyrene particles incubated in the Baltic Sea. After phylogenetic analysis, the strain could be placed in the family Planctomycetaceae. Strain Pla110T performs cell division by budding, has crateriform structures and grows in aggregates or rosettes. The strain is a chemoheterotroph, grows under mesophilic and neutrophilic conditions, and exhibited a doubling time of 21 h. Based on our phylogenetic and morphological characterisation, strain Pla110T (DSM 103387T = LMG 29693T) is concluded to represent a novel species belonging to a novel genus, for which we propose the name Polystyrenella longa gen. nov., sp. nov.

scholarly journals Garðaríki and Its Capital: Novgorod on the Mental Map of Medieval Scandinavians

Slovene ◽  
2015 ◽  
Vol 4 (1) ◽  
pp. 170-179
Author(s):  
Tatjana N. Jackson
Keyword(s):  
Baltic Sea ◽  
Capital City ◽  
Old Norse ◽  
The Baltic Sea ◽  
Mental Map ◽  
The Baltic ◽  
Almost All ◽  
The Church

The paper presents data preserved in Old Norse-Icelandic literature on Hólmgarðr, a place that is traditionally identified with Novgorod. Hólmgarðr appears in these writings as a capital of Garðaríki (Old Rus’): all Russian princes familiar from these sources have their seat in this place. Almost all the events occurring in Russia are associated in the sagas with Hólmgarðr: Scandinavians come to Hólmgarðr to seek refuge or service; four Norwegian kings stay in Hólmgarðr for a period of time; Scandinavians return to their homeland or sail to distant lands from this place; and Scandinavian merchants also come to this town. Hólmgarðr is described in a generalized way. It has the prince’s court, the chamber of the princess, a special hall built for the Varangian guards, the Church of St. Olav, and a marketplace; in other words, we are dealing with a traditional set of characteristics of a capital city. Novgorod on the mental map of medieval Scandinavians belongs to the eastern quarter (Austrhálfa) of the oekumene, and to get there travelers had to go austr ‘east,’ to cross the Baltic Sea (Austmarr, Eystrasalt), and to pass Ladoga (Aldeigja, Aldeigjuborg), where they changed from ocean-going ships to river vessels and where they waited for a guaranty of safe travel (grið) from the prince of Novgorod (konungr í Hólmgarði).

scholarly journals Impact of Hydro-Climatic Changes on Coastal Dunes Landscape According to Normalized Difference Vegetation Index (The Case Study of Curonian Spit)

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3234
Author(s):  
Julius Taminskas ◽  
Rasa Šimanauskienė ◽  
Rita Linkevičienė ◽  
Jonas Volungevičius ◽  
Gintarė Slavinskienė ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Meteorological Parameters ◽  
Coastal Dunes ◽  
The Baltic Sea ◽  
Curonian Spit ◽  
Positive Correlation ◽  
The Baltic ◽  
Moderate Positive Correlation

Coastal dunes are recognized as one of the most threatened ecosystems, the formation of which mainly depends on two opposite processes—sand dunes overgrowth and formation of open dunes. The application of cost-effective remote sensing methods permits monitoring the interaction of these two processes over a large area and long periods of time. Therefore in this study we assessed the links between hydro-meteorological parameters and the normalized difference vegetation index (NDVI) in Curonian spit coastal dunes landscape-a creation of human and nature integrity situated in the South eastern part of the Baltic Sea. Time series of NDVI (2000–2019) were obtained from the moderate resolution imaging spectro-radiometer and compared with hydro-meteorological parameters in three different ecosystems—forest, herbaceous and open sands. Moderate and strong positive correlation between NDVI and average wind speed was detected in non-forested ecosystems. Moderate positive correlation was detected between NDVI and the Baltic sea water level in all three analyzed ecosystems. Moderate positive correlation between NDVI and air temperature was found in forest ecosystem. This confirms that NDVI could be treated as an appropriate indicator, showing the interaction of coastal dunes overgrowth and formation of open dunes, and could be applied in its management that should be reconsidered under nowadays climate change.

scholarly journals Philichthys xiphiae (Copepoda; Philichthyidae) – an interesting cranium parasite of the swordfish Xiphias gladius collected from the Baltic Sea

2021 ◽  
Vol 50 (3) ◽  
pp. 333-337
Author(s):  
Leszek Rolbiecki ◽  
Bartłomiej Arciszewski ◽  
Joanna N. Izdebska
Keyword(s):  
Baltic Sea ◽  
Marine Fish ◽  
Lateral Line ◽  
First Record ◽  
The Baltic Sea ◽  
The Family ◽  
Xiphias Gladius ◽  
The Baltic ◽  
Baltic Area ◽  
Skull Bones

Abstract The swordfish, Xiphias gladius Linnaeus, 1758, is a fish that sporadically enters the Baltic Sea. The present paper describes the identification of a very rarely recorded and poorly studied copepod of the family Philichthyidae – Philichthys xiphiae Steenstrup, 1862 – in a dead swordfish found on a sea beach in Dźwirzyno (Poland) in 2016. Philichthyidae are parasites inhabiting the sensory canals in the lateral line and skull bones of marine fish. In the present case, two P. xiphiae females were found, which constitutes the first record of the species in the Baltic area.

Butterflies (Lepidoptera, Rhopalocera) of the Curonian Spit in the Baltic Sea

2008 ◽  
Vol 88 (1) ◽  
pp. 42-45
Author(s):  
N. A. Shapoval ◽  
A. P. Shapoval
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
Curonian Spit ◽  
The Baltic

Geological structure of the Curonian Spit (of the Baltic Sea) and its evolution history (revised)

Oceanology ◽  
2007 ◽  
Vol 47 (4) ◽  
pp. 554-563 ◽  
Author(s):  
E. N. Badyukova ◽  
L. A. Zhindarev ◽  
S. A. Luk’yanova ◽  
G. D. Solov’eva
Keyword(s):  
Baltic Sea ◽  
Geological Structure ◽  
The Baltic Sea ◽  
Curonian Spit ◽  
The Baltic

scholarly journals Stieleria varia sp. nov., isolated from wood particles in the Baltic Sea, constitutes a novel species in the family Pirellulaceae within the phylum Planctomycetes

2020 ◽  
Vol 113 (12) ◽  
pp. 1953-1963
Author(s):  
Frank Surup ◽  
Sandra Wiegand ◽  
Christian Boedeker ◽  
Anja Heuer ◽  
Stijn H. Peeters ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Cell Biology ◽  
Novel Species ◽  
Optimal Growth ◽  
The Baltic Sea ◽  
Abiotic Surfaces ◽  
The Family ◽  
Wood Particles ◽  
Orange Colour ◽  
The Baltic

AbstractSpecies belonging to the bacterial phylum Planctomycetes are ubiquitous members of the microbial communities in aquatic environments and are frequently isolated from various biotic and abiotic surfaces in marine and limnic water bodies. Planctomycetes have large genomes of up to 12.4 Mb, follow complex lifestyles and display an uncommon cell biology; features which motivate the investigation of members of this phylum in greater detail. As a contribution to the current collection of axenic cultures of Planctomycetes, we here describe strain Pla52T isolated from wood particles in the Baltic Sea. Phylogenetic analysis places the strain in the family Pirellulaceae and suggests two species of the recently described genus Stieleria as current closest neighbours. Strain Pla52nT shows typical features of members of the class Planctomycetia, including division by polar budding and the presence of crateriform structures. Colonies of strain Pla52nT have a light orange colour, which is an unusual pigmentation compared to the majority of members in the phylum, which show either a pink to red pigmentation or entirely lack pigmentation. Optimal growth of strain Pla52nT at 33 °C and pH 7.5 indicates a mesophilic (i.e. with optimal growth between 20 and 45 °C) and neutrophilic growth profile. The strain is an aerobic heterotroph with motile daughter cells. Its genome has a size of 9.6 Mb and a G + C content of 56.0%. Polyphasic analyses justify delineation of the strain from described species within the genus Stieleria. Therefore, we conclude that strain Pla52nT = LMG 29463T = VKM B-3447T should be classified as the type strain of a novel species, for which we propose the name Stieleria varia sp. nov.

Geometrid moths (Lepidoptera. Geometridae) of the Curonian Spit in the Baltic sea

2006 ◽  
Vol 86 (4) ◽  
pp. 389-397
Author(s):  
N. A. Shapoval ◽  
A. P. Shapoval
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
Curonian Spit ◽  
The Baltic

scholarly journals Structure of the South-Western Part of the Curonian Spit

2018 ◽  
Vol 65 (2) ◽  
pp. 109-122
Author(s):  
Ekaterina N. Badyukova ◽  
Leonid A. Zindarev ◽  
Svetlana A. Lukyanova ◽  
Galina D. Solovieva
Keyword(s):  
Comparative Analysis ◽  
Baltic Sea ◽  
Detailed Analysis ◽  
Field Work ◽  
The Baltic Sea ◽  
Curonian Spit ◽  
Aeolian Processes ◽  
The Holocene ◽  
Coastal Barrier ◽  
The Baltic

AbstractThis article addresses the southern sector of the Curonian Spit, the largest coastal barrier of the Baltic Sea. A comparative analysis of the deposits that make up parts of the Curonian and Vistula Spits is given. The detailed analysis of the geological and geomorphological structure of the southern part of the Curonian Spit suggests that, within this sector, it is not a sedimentary barrier created by wave action and Aeolian processes in the Holocene, but a part of a pre-Holocene fluvioglacial plain. Field work has shown that the ancient alluvial or fluvioglacial plain is in the lagoon shore of the Vistula Spit.

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