From the Black Sea to the White Sea: The first record of the invasive mollusk Physella acuta in the extreme north of Europe

2016 ◽  
Vol 7 (4) ◽  
pp. 351-354 ◽  
Author(s):  
I. O. Nekhaev ◽  
D. M. Palatov
Keyword(s):  
Black Sea ◽  
White Sea ◽  
First Record ◽  
The Black Sea ◽  
The White Sea ◽  
Physella Acuta ◽  
Extreme North

scholarly journals Art. XI.—The Avâr Language

1881 ◽  
Vol 13 (3) ◽  
pp. 291-352
Author(s):  
Cyril Graham
Keyword(s):  
Black Sea ◽  
White Sea ◽  
The Black Sea ◽  
The White Sea

In the year 1873, having traversed Russia from Archangel to Astrakhan, from the White Sea to the borders of the Kaspian, my friend and I determined to pass homewards through Daghistân and Georgia, and thence by the Black Sea to Odessa.

Catalogue of aquatic Oligochaeta (Annelida: Clitellata) of Montenegro, exclusive of Naidinae and Pristininae

Zootaxa ◽  
2011 ◽  
Vol 2985 (1) ◽  
pp. 1
Author(s):  
DANIJELA ŠUNDIĆ ◽  
BRANKO M. RADUJKOVIĆ ◽  
JASMINA KRPO–ĆETKOVIĆ
Keyword(s):  
Species Richness ◽  
Black Sea ◽  
Adriatic Sea ◽  
First Record ◽  
Aquatic Oligochaeta ◽  
The Black Sea ◽  
Drainage Basins ◽  
Aquatic Oligochaete ◽  
Balkan Region ◽  
Richness Estimators

The aquatic oligochaete fauna of Montenegro was recently studied in order to improve the knowledge of this group in the Balkan region. This study was carried out on sediments collected from 70 sampling sites (the Black Sea and the Adriatic Sea drainage basins) during three years (2005–2008). Forty-one species were identified, from seven following families: Naididae, Enchytraeidae, Haplotaxidae, Lumbriculidae, Lumbricidae, Criodrilidae and Branchiobdellidae (exclusive of Naidinae and Pristininae). Sixteen of them represent first record for the Montenegrin oligochaete fauna: Embolocephalus velutinus, Ilyodrilus templetoni, Psammoryctides deserticola, Spirosperma ferox, Tubifex ignotus, Bathydrilus adriaticus, Bothrioneurum vejdovskyanum, Rhyacodrilus coccineus, Cernosvitoviella atrata, Enchytraeus buchholzi, Mesenchytraeus armatus, Haplotaxis gordioides, Rhynchelmis limosella, Stylodrilus heringianus, Tatriella slovenica and Trichodrilus strandi. The list of species from the subfamilies Naidinae and Pristininae was published previously (Šundić et al. 2011), and it comprises 36 species. Altogether, the present study and literature data show that Montenegrin aquatic oligochaete fauna consists of 77 species. Concerning similarity, values of Jaccard’s index are the highest between Montenegrin and Serbian oligochaete fauna (57 %), and the lowest between Montenegrin and Albanian oligochaete fauna (27.77 %). Species richness estimators (Mao Tau, Uniques Mean, Chao 1, Chao 2, Jack 1, Jack 2, Bootstrap, ACE and ICE) indicate that findings of new oligochaete species in Montenegro are expected.

scholarly journals The Study of Uranium Accumulation in Marine Bottom Sediments: Effect of Redox Conditions at the Time of Sedimentation

Geosciences ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 332
Author(s):  
Nadezhda Khaustova ◽  
Yulia Tikhomirova ◽  
Svetlana Korost ◽  
Elena Poludetkina ◽  
Andrey Voropaev ◽  
...  
Keyword(s):  
Bottom Sediments ◽  
White Sea ◽  
Uranium Content ◽  
Black Shales ◽  
Redox Conditions ◽  
Source Rocks ◽  
Shelf Zone ◽  
The Black Sea ◽  
The White Sea ◽  
Run Off

To evaluate the effect of redox conditions at the sedimentation stage on uranium content and U/TOC ratio in marine source rocks, we analyzed the accumulation of uranium in modern marine bottom sediments formed in different redox conditions. The behavior of uranium from bottom sediments formed in oxidizing and sub-oxidizing settings has been studied on the sediments of the Upper Pleistocene–Holocene age accumulated in the coastal area of the White Sea (Kandalaksha Gulf). We studied the content of uranium, Eh, pH, TOC, C, H, N, and S element and isotope compositions and other parameters in two sampled columns of bottom sediments at a depth of 0–2.5 m. The composition of sediments was typical for the shelf zone where marine genesis mixes with the continental run-off. The upper layer of sediments (0–50 cm) were characterized by oxidizing conditions (Eh ~ 400 mV); with the increase in depth, redox conditions changed from oxidizing to reducing (0 ÷ 200 mV). The uranium concentration in the upper layer was 1–1.5 ppm, U/TOC ratio varied in the range of 0.8–1.1 ppmU/%TOC. The uranium content and U/TOC ratio increased up to the values of 2.6 ppm and 1.4 ppmU/%TOC at a depth of 0.5−2.5 m, respectively, but the general content of uranium in the studied environment was close to the values characterizing continental run-off. The results obtained for the White Sea sediments were compared with the sediment of the Black Sea, formed in the anoxic conditions of hydrogen sulfide contamination. In these conditions, the uranium content varied from 10 to 20 ppm. The obtained data were interpreted using thermodynamic modeling of the uranium forms in the seawater at different pH and Eh. This study demonstrated that the change of redox conditions from oxidizing to reducing leads to increased uranium content due to a decrease in uranium’s solubility in water. These results show that oxidation–reduction potential could be one of the most important factors controlling uranium content in black shales formed in the marine environment.

scholarly journals First record of the Combtooth Blenny, Microlipophrys adriaticus (Steindachner & Kolombatovic, 1883) (Pisces, Blenniidae), for the Italian Ionian Sea

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1646 ◽  
Author(s):  
F. Tiralongo ◽  
R. Baldacconi
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Adriatic Sea ◽  
First Record ◽  
The Black Sea ◽  
Ionian Sea ◽  
Sea Of Marmara ◽  
Limited Distribution ◽  
The North ◽  
The Mediterranean

Microlipophrys adriaticus (Steindachner & Kolombatovic, 1883) is an endemic blenny of the Mediterranean Sea. It is also known from the Sea of Marmara and the Black Sea. However, unlike other species of combtooth blennies, M. adriaticus is a fish with a limited distribution in Adriatic Sea, especially in the north, where it can be common. We report here the first record of this species from the waters of the Ionian Sea.

Phyllobothrium squali Yamaguti, 1952 (Tetraphyllidea, Phyllobothriidae): redescription and first record in the Black Sea

2002 ◽  
Vol 53 (1) ◽  
pp. 49-59 ◽  
Author(s):  
Gergana P. Vasileva ◽  
Georgi I. Dimitrov ◽  
Boyko B. Georgiev
Keyword(s):  
Black Sea ◽  
First Record ◽  
The Black Sea

scholarly journals First survey of shallow-water Amphipoda along the Georgian Black Sea coast reveals new faunistic records and the unexpected Atlantic invader Melita nitida

2020 ◽  
Author(s):  
DENIS COPILAȘ-CIOCIANU ◽  
GAVRIL MARIUS BERCHI ◽  
LEVAN MUMLADZE
Keyword(s):  
Shallow Water ◽  
New Taxa ◽  
Black Sea ◽  
First Record ◽  
The Other ◽  
The Black Sea ◽  
Number Of Species ◽  
Black Sea Coast ◽  
Cryptic Invasions ◽  
Sea Coast

We present findings from the first survey of shallow-water amphipods conducted along the Black Sea coast in Georgia. Eight species from five families have been identified, all but one being new for the Georgian fauna. Although most are usual inhabitants of the Black and Mediterranean seas, we report the first record of the invader Melita nitida in this region. This North American species was previously known in Europe only from the Atlantic and Baltic coasts. Its finding in the Black Sea implies either jump dispersal, or a more widespread, but cryptic distribution. Given that the total number of species reported in Georgia is lower than in the other countries neighbouring the Black Sea, we anticipate the discovery of new taxa in future surveys. Our study highlights the importance of faunistic exploration in previously overlooked regions for detecting potentially cryptic invasions and corroborating biogeographical patterns.

The first record of the brown alga Tinocladia crassa (Suringar) Kylin, 1940 in the White Sea

2015 ◽  
Vol 41 (3) ◽  
pp. 212-213
Author(s):  
A. A. Georgiev ◽  
M. L. Georgieva ◽  
A. N. Kamnev
Keyword(s):  
Brown Alga ◽  
White Sea ◽  
First Record ◽  
The White Sea
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