scholarly journals Large red cyanobacterial mats (Spirulina subsalsa Oersted ex Gomont) in the shallow sublittoral of the southern Baltic

Oceanologia ◽  
2014 ◽  
Vol 56 (3) ◽  
pp. 661-666 ◽  
Author(s):  
Maria Włodarska-Kowalczuk ◽  
Piotr Balazy ◽  
Justyna Kobos ◽  
Józef Wiktor ◽  
Marek Zajączkowski ◽  
...  
Keyword(s):  
Cyanobacterial Mats ◽  
Southern Baltic ◽  
Spirulina Subsalsa

Holocene diatom biostratigraphy of the SW Gulf of Gdańsk, Southern Baltic Sea (part III)

2008 ◽  
Vol 37 (4) ◽  
Author(s):  
Małgorzata Leśniewska ◽  
Małgorzata Witak
Keyword(s):  
Baltic Sea ◽  
The South ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Southern Baltic Sea ◽  
Gulf Of Gdansk ◽  
Southern Baltic ◽  
The Baltic ◽  
Palaeoenvironmental Changes

Holocene diatom biostratigraphy of the SW Gulf of Gdańsk, Southern Baltic Sea (part III)The palaeoenvironmental changes of the south-western part of the Gulf of Gdańsk during the last 8,000 years, with reference to the stages of the Baltic Sea, were reconstructed. Diatom analyses of two cores taken from the shallower and deeper parts of the basin enabled the conclusion to be drawn that the microflora studied developed in the three Baltic phases: Mastogloia, Littorina and Post-Littorina. Moreover, the so-called anthropogenic assemblage was observed in subbottom sediments of the study area.

Integrated Research of the Southern Baltic Sea during Cruise 42 of the R/V AkademikNikolaj Strakhov

Oceanology ◽  
2020 ◽  
Vol 60 (4) ◽  
pp. 565-566
Author(s):  
D. V. Dorokhov ◽  
V. T. Paka ◽  
A. A. Kondrashov ◽  
I. Yu. Dudkov ◽  
M. F. Markiyanova
Keyword(s):  
Baltic Sea ◽  
Southern Baltic Sea ◽  
Integrated Research ◽  
Southern Baltic

scholarly journals Argo floats in the southern Baltic Sea

Oceanologia ◽  
2020 ◽  
Vol 62 (4) ◽  
pp. 478-488
Author(s):  
Waldemar Walczowski ◽  
Małgorzata Merchel ◽  
Daniel Rak ◽  
Piotr Wieczorek ◽  
Ilona Goszczko
Keyword(s):  
Baltic Sea ◽  
Southern Baltic Sea ◽  
Argo Floats ◽  
Southern Baltic

scholarly journals Cyanobacterial Mats in Calcite-Precipitating Serpentinite-Hosted Alkaline Springs of the Voltri Massif, Italy

2020 ◽  
Vol 9 (1) ◽  
pp. 62
Author(s):  
Aysha Kamran ◽  
Kathrin Sauter ◽  
Andreas Reimer ◽  
Theresa Wacker ◽  
Joachim Reitner ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Microbial Mats ◽  
Environmental Dna ◽  
Cyanobacterial Mats ◽  
Cyanobacterial Community ◽  
Mineral Precipitation ◽  
Community Based ◽  
Specific Adaptation ◽  
Carbonate Buildups ◽  
Generation Sequencing

(1) Background: Microbial communities in terrestrial, calcifying high-alkaline springs are not well understood. In this study, we investigate the structure and composition of microbial mats in ultrabasic (pH 10–12) serpentinite springs of the Voltri Massif (Italy). (2) Methods: Along with analysis of chemical and mineralogical parameters, environmental DNA was extracted and subjected to analysis of microbial communities based upon next-generation sequencing. (3) Results: Mineral precipitation and microbialite formation occurred, along with mat formation. Analysis of the serpentinite spring microbial community, based on Illumina sequencing of 16S rRNA amplicons, point to the relevance of alkaliphilic cyanobacteria, colonizing carbonate buildups. Cyanobacterial groups accounted for up to 45% of all retrieved sequences; 3–4 taxa were dominant, belonging to the filamentous groups of Leptolyngbyaceae, Oscillatoriales, and Pseudanabaenaceae. The cyanobacterial community found at these sites is clearly distinct from creek water sediment, highlighting their specific adaptation to these environments.

scholarly journals Diversified calcimicrobes in dendrolites of the Zhangxia Formation, Miaolingian Series (Middle Cambrian) of the North China craton

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Ming-Xiang Mei ◽  
Muhammad Riaz ◽  
Zhen-Wu Zhang ◽  
Qing-Fen Meng ◽  
Yuan Hu
Keyword(s):  
North China ◽  
Cyanobacterial Mats ◽  
Third Order ◽  
Depositional Sequence ◽  
Middle Cambrian ◽  
Forming Mechanism ◽  
The North ◽  
Biological Affinity ◽  
History Of ◽  
Group 3

AbstractAs a type of non-laminated microbial carbonates, dendrolites are dominated by isolated dendritic clusters of calcimicrobes and are distinct from stromatolites and thrombolites. The dendrolites in the upper part of the Miaolingian Zhangxia Formation at Anjiazhuang section in Feicheng city of Shandong Province, China, provide an excellent example for further understanding of both growth pattern and forming mechanism of dendrolites. These dendrolites are featured by sedimentary fabrics and composition of calcified microbes as follows. (1) The strata of massive limestones, composed of dendrolites with thickness of more than one hundred meters, intergrade with thick-bedded to massive leiolites, formimg the upper part of a third-order depositional sequence that constitutes a forced regressive systems tract. (2) A centimeter-sized bush-like fabric (shrub) typically produced by calcified microbes is similar to the mesoclot in thrombolites but distinctive from clotted fabrics of thrombolites. This bush-like fabric is actually constituted by diversified calcified microbes like the modern shrub as a result of gliding mobility of filamentous cyanobacteria. Such forms traditionally include: the Epiphyton group (which actually has uncertain biological affinity), the Hedstroemia group which closely resembles modern rivulariacean cyanobacteria, and the possible calcified cyanobacteria of the Lithocodium–Bacinella group. (3) Significantly, dense micrite of leiolite is associated with sponge fossils and burrows, and is covered by microstromatolite. The Lithocodium–Bacinella group is a controversial group of interpreted calcified cyanobacteria in the Cambrian that has also been widely observed and described in the Mesozoic. Therefore, dendrolites with symbiosis of leiolites in the studied section provide an extraordinary example for further understanding of growing style of bush-like fabrics (shrubs) of the dendrolites dominated by cyanobacterial mats. Furthermore, the present research provides some useful thinking approaches for better understanding of the history of the Early Paleozoic skeletal reefs and the microbe–metazoan transitions of the Cambrian.

Fish as a winter reservoir for Vibrio spp. in the southern Baltic Sea coast

2021 ◽  
pp. 103574
Author(s):  
Lars Möller ◽  
Bernd Kreikemeyer ◽  
Gunnar Gerdts ◽  
Günter Jost ◽  
Matthias Labrenz
Keyword(s):  
Baltic Sea ◽  
Southern Baltic Sea ◽  
Southern Baltic ◽  
Vibrio Spp ◽  
Sea Coast

scholarly journals Sex and age-specific differences in wing pointedness and wing length in blackcaps Sylvia atricapilla migrating through the southern Baltic coast

2020 ◽  
Author(s):  
Agnieszka Ożarowska ◽  
Grzegorz Zaniewicz ◽  
Włodzimierz Meissner
Keyword(s):  
Wing Length ◽  
Sub Saharan Africa ◽  
Migration Route ◽  
Sylvia Atricapilla ◽  
Climatic Effects ◽  
Migration Distance ◽  
Baltic Coast ◽  
Southern Baltic ◽  
Sub Saharan ◽  
Migrating Birds

Abstract The blackcap Sylvia atricapilla shows a complex migratory pattern and is a suitable species for the studies of morphological migratory syndrome, including adaptations of wing shape to different migratory performance. Obligate migrants of this species that breed in northern, central, and Eastern Europe differ by migration distance and some cover shorter distance to the wintering grounds in the southern part of Europe/North Africa or the British Isles, although others migrate to sub-Saharan Africa. Based on ˃40 years of ringing data on blackcaps captured during autumn migration in the Southern Baltic region, we studied age- and sex-related correlations in wing pointedness and wing length of obligate blackcap migrants to understand the differences in migratory behavior of this species. Even though the recoveries of blackcaps were scarce, we reported some evidence that individuals which differ in migration distance differed also in wing length. We found that wing pointedness significantly increased with an increasing wing length of migrating birds, and adults had longer and more pointed wings than juvenile birds. This indicates stronger antipredator adaptation in juvenile blackcaps than selection on flight efficiency, which is particularly important during migration. Moreover, we documented more pronounced differences in wing length between adult and juvenile males and females. Such differences in wing length may enhance a faster speed of adult male blackcaps along the spring migration route and may be adaptive when taking into account climatic effects, which favor earlier arrival from migration to the breeding grounds.

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