Biodiversity of the Wetland Complex of the Danube Delta within the Boundaries of Ukraine and a Forecast of Its Changes at the Implementation of the Project of Shipping through the Biosphere Reserve

2004 ◽  
Vol 40 (4) ◽  
pp. 19
Author(s):  
T. A. Kharchenko
Keyword(s):  
Biosphere Reserve ◽  
Danube Delta ◽  
Wetland Complex

A qualitative reasoning model of algal bloom in the Danube Delta Biosphere Reserve (DDBR)

2009 ◽  
Vol 4 (5-6) ◽  
pp. 282-298 ◽  
Author(s):  
E. Cioaca ◽  
F.E. Linnebank ◽  
B. Bredeweg ◽  
P. Salles
Keyword(s):  
Algal Bloom ◽  
Biosphere Reserve ◽  
Qualitative Reasoning ◽  
Danube Delta ◽  
Danube Delta Biosphere Reserve

Danube Delta Biosphere Reserve—Long-Term Assessment of Water Quality

2019 ◽  
pp. 21-43
Author(s):  
Cristina Despina ◽  
Liliana Teodorof ◽  
Adrian Burada ◽  
Daniela Seceleanu-Odor ◽  
Iuliana-Mihaela Tudor ◽  
...  
Keyword(s):  
Water Quality ◽  
Biosphere Reserve ◽  
Danube Delta ◽  
Danube Delta Biosphere Reserve

scholarly journals Algae of biological soil crusts from sand dunes of the Danube Delta biosphere reserve (Odesa Region, Ukraine)

Algologia ◽  
2021 ◽  
Vol 31 (1) ◽  
pp. 25-62
Author(s):  
T.I. Mikhailyuk ◽  
◽  
O.M. Vinogradova ◽  
K. Glaser ◽  
N. Rybalka ◽  
...  
Keyword(s):  
Species Composition ◽  
Phylogenetic Analyses ◽  
Sand Dunes ◽  
Biosphere Reserve ◽  
Biological Soil Crusts ◽  
Danube Delta ◽  
Climate Type ◽  
Soil Crusts ◽  
Comparison Of The Results ◽  
Danube Delta Biosphere Reserve

The species composition of algae from biological soil crusts (biocrusts) on the surface of sand dunes (Black Sea coast, Primorske, Izmail District, Odesa Region, Ukraine) was investigated. Samples were collected from three coastal localities: Katranivska Spit, Zhebryianska Bay and Zhebryianska Ridge. The latter two localities are in the territory of the Danube Delta Biosphere Reserve. The samples were investigated by direct microscopy, followed by a culture approach. 60 species from Chlorophyta (32), Cyanobacteria (16), Streptophyta (7) and Ochrophyta (5) were identified. Representatives of the cyanobacterial genera Microcoleus Desmazières ex Gomont, Coleofasciculus M.Siegesmund, J.R.Johansen & T.Friedl, Nostoc Vaucher ex Bornet & Flahault, Hassallia Berkeley ex Bornet & Flahault, and streptophytes from the genus Klebsormidium P.C.Silva, Mattox & W.H.Blackwell dominated in the studied biocrusts. Phylogenetic analyses based on 16S/18S rRNA as well as 16S-23S ITS/ITS-1,2 regions were undertaken for some strains of cyanobacteria and eukaryotic algae. As a result, species identification and their position in respective phylogeny was refined, as well as aiding the discovery of some interesting and rare species. New genera and species were described (Streptosarcina arenaria Mikhailyuk & Lukešová and Tetradesmus arenicola Mikhailyuk & P.Tsarenko); with two genera (Nodosilinea R.B.Perkerson & D.A.Casamatta and Pleurastrosarcina H.J.Sluiman & P.C.J.Blommers) and four species reported for the first time for the flora of Ukraine (Nodosilinea epilithica Perkerson & Casamatta, Pseudomuriella aurantiaca (W.Vischer) N.Hanagata, Pleurochloris meiringensis Vischer, Pleurastrosarcina terriformae Darienko, W.J.Kang, Orzechowski & Pröschold). Comparison of the results from this study with similar investigations at Cape Kazantip (Sea of Azov, Ukraine) and at two islands of the Baltic Sea (Rügen, Usedom, Germany) revealed that sand composition and texture, as well as climate type of the respective region, are the main factors determining species composition of algae and cyanobacteria in biocrusts of maritime dunes.

TRACE ELEMENTS IN FISH TISSUE WITH COMMERCIAL VALUE OF THE DANUBE DELTA BIOSPHERE RESERVE

2017 ◽  
Vol 16 (3) ◽  
pp. 731-738
Author(s):  
Adrian Burada ◽  
Liliana Teodorof ◽  
Cristina Despina ◽  
Daniela Seceleanu-Odor ◽  
Mihaela Tudor ◽  
...  
Keyword(s):  
Trace Elements ◽  
Biosphere Reserve ◽  
Fish Tissue ◽  
Danube Delta ◽  
Commercial Value ◽  
Danube Delta Biosphere Reserve

Algae of Biological Soil Crusts from Sand Dunes of the Danube Delta Biosphere Reserve (Odesa Region, Ukraine)

2021 ◽  
Vol 23 (1) ◽  
pp. 7-42
Author(s):  
T. I. Mikhailyuk ◽  
O. M. Vinogradova ◽  
K. Glaser ◽  
N. A. Rybalka ◽  
E. M. Demchenko ◽  
...  
Keyword(s):  
Sand Dunes ◽  
Biosphere Reserve ◽  
Biological Soil Crusts ◽  
Danube Delta ◽  
Soil Crusts ◽  
Danube Delta Biosphere Reserve

scholarly journals Ecology of West Nile Virus in the Danube Delta, Romania: Phylogeography, Xenosurveillance and Mosquito Host-Feeding Patterns

Viruses ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1159 ◽  
Author(s):  
Alexandru Tomazatos ◽  
Stephanie Jansen ◽  
Stefan Pfister ◽  
Edina Török ◽  
Iulia Maranda ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Culex Pipiens ◽  
Biosphere Reserve ◽  
Host Feeding ◽  
Danube Delta ◽  
Feeding Patterns ◽  
West Nile ◽  
Specific Antibodies ◽  
Lineage 2 ◽  
Culex Pipiens S.L

The ecology of West Nile virus (WNV) in the Danube Delta Biosphere Reserve (Romania) was investigated by combining studies on the virus genetics, phylogeography, xenosurveillance and host-feeding patterns of mosquitoes. Between 2014 and 2016, 655,667 unfed and 3842 engorged mosquito females were collected from four sampling sites. Blood-fed mosquitoes were negative for WNV-RNA, but two pools of unfed Culex pipiens s.l./torrentium collected in 2014 were tested positive. Our results suggest that Romania experienced at least two separate WNV lineage 2 introductions: from Africa into Danube Delta and from Greece into south-eastern Romania in the 1990s and early 2000s, respectively. The genetic diversity of WNV in Romania is primarily shaped by in situ evolution. WNV-specific antibodies were detected for 19 blood-meals from dogs and horses, but not from birds or humans. The hosts of mosquitoes were dominated by non-human mammals (19 species), followed by human and birds (23 species). Thereby, the catholic host-feeding pattern of Culex pipiens s.l./torrentium with a relatively high proportion of birds indicates the species’ importance as a potential bridge vector. The low virus prevalence in combination with WNV-specific antibodies indicate continuous, but low activity of WNV in the Danube Delta during the study period.

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