Contributions to the Diatom flora of the Black Sea from ultrastructural and molecular studies: new records of Skeletonema marinoi, Pseudo-nitzschia pungens var. aveirensis and Chaetoceros tenuissimus for the marine flora of Turkey

Nova Hedwigia ◽  
2013 ◽  
Vol 96 (3) ◽  
pp. 427-444 ◽  
Author(s):  
Özgür Baytut ◽  
Øjvind Moestrup ◽  
Nina Lundholm ◽  
Arif Gönülol
Author(s):  
Eleonora P. Radionova

The associations and ecological conditions of the existence of modern diatoms of the North-West (Pridneprovsky), Prikerchensky and Eastern regions of the subtidal zone of the Black Sea are considered. Based on the unity of the composition of the Present and Sarmatian-Meotian diatom flora, an attempt has been made to model some of the ecological c situation of the Late Miocene Euxinian basin.


2021 ◽  
Vol 42 (7) ◽  
pp. 49-53
Author(s):  
Tihomir Stefanov

Thirteen new records of the blue crab Callinectes sapidus (Rathbun, 1896) have been documented near the Bulgarian Black Sea coast since 2006. This is an evidence for a recent expansion of the species in this part of the Black Sea. This expansion could be explained by the existing of established population in the area and is confirmed by the capturing of an egg-bearing female in the Varna Bay in 2005.


2021 ◽  
Vol 22 (1) ◽  
pp. 141
Author(s):  
MEHREZ GAMMOUDI ◽  
VERONICA N. BULNES ◽  
GÜLEY KURT

Between October 2013 and July 2014, 40 polyclad specimens were collected during the systematic sampling of mussel beds along the coast of the Sinop Peninsula (Western Black Sea). Six species were identified, including a new Cryptocelis species. Cryptocelis sinopae sp. nov. is characterized by possessing a prostatic vesicle lined with a ridged fold in its anterior end and the presence of two secretory glandular folds in the distal dorsal wall of male atrium. Additionally, new records of Echinoplana celerrima Haswell, 1907 and Leptoplana mediterranea (Bock, 1913) are reported for the Black Sea and Turkey; and Leptoplana tremellaris (Müller OF, 1774) and Prosthiostomum siphunculus Delle Chiaje, 1822 for the coast of the Black Sea of Turkey. A short description of the reproductive behaviour of Pleioplana okusi Bulnes, Kalkan and Karahan, 2009 and Cryptocelis sinopae sp. nov. will be also provided.


2020 ◽  
Vol 5 (Suppl.1) ◽  
Author(s):  
Anton V. Popovich ◽  
◽  
Elena A. Averyanova ◽  
Lev M. Shagarov ◽  
◽  
...  

2021 ◽  
Vol 0 (0) ◽  
pp. 19-28
Author(s):  
Seher Dirican ◽  
Aydın Kaleli ◽  
Elif Yılmaz ◽  
Ali Özer ◽  
Hayri Dayıoğlu

2021 ◽  
Vol 55 (1) ◽  
pp. 19-34
Author(s):  
G. V. Kovaleva ◽  
R. M. Gogorev

A study of the Upper Miocene deposits on the Taman Peninsula revealed a new centric diatom Thalassiosira kozyrenkoae Kovaleva et Gogorev. The absence of findings of this species in the modern diatom flora suggests that it is extinct. The species was likely endemic for the Sea of Azov – the Black Sea basin. Single findings of valve fragments in the New Azov layers make it possible to use T. kozyrenkoae as a stratigraphic marker and to estimate the distribution extent of the Neogene sediments from the outcrops. This study will contribute to the more precise identification of the origin of the redeposited fossil diatoms in the Quaternary sediments from the Sea of Azov.


Author(s):  
Güley Kurt-Şahin ◽  
Murat Sezgin ◽  
Fikriye Ünlüer ◽  
Bilal Öztürk ◽  
Ertan Cavdar ◽  
...  

AbstractThe present study deals with macrozoobenthic species on soft substrates in İğneada (Turkish coast of the Black Sea). Benthic samples were collected seasonally at three stations between 2012 and 2013. A total of 155 species belonging to seven taxa (Turbellaria, Nemertea, Nematoda, Oligochaeta, Polychaeta, Crustacea, Phoronida, Mollusca, Hemichordata) were identified. Of these, four species are new records for the Black Sea fauna, 15 species are new to the Turkish coast of the Black Sea; and two species are new to the Turkish Seas. Polychaeta was the most representative taxon in the study area – it was represented by 58 species (39% of the total number of species). In terms of the number of individuals, Mollusca were the dominant taxon in all seasons (82% of the total number of individuals). The most dominant species were


2008 ◽  
Vol 40 (05) ◽  
pp. 375-386 ◽  
Author(s):  
Jan VONDRÁK ◽  
Jaroslav ŠOUN ◽  
Pavel HROUZEK ◽  
Pavel ŘÍHA ◽  
Jiří KUBÁSEK ◽  
...  

Abstract:Caloplaca subalpina Vondrák, Šoun & Palice and C. thracopontica Vondrák & Šoun are described here as new to science. The former is a sorediate, often sterile, saxicolous species inhabiting subalpine base-rich overhanging rocks in European mountains; the latter grows on maritime cliffs of the Black Sea and is conspicuous by the lobules and pustules which are usually present on its thallus and by its apothecia which are typically large and abundant. The placing of the two species in the C. cerina group was confirmed by molecular studies using nrDNA ITS sequences. The chemosyndromes of both new species correspond to chemosyndrome A, which is in accordance with their position in the C. cerina group. A key to the saxicolous species of the C. cerina group is provided.


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