scholarly journals Regionally adapted algorithm for the recovery of chlorophyll a concentration for the Black Sea, analysis of the reasons for the difference between satellite and contact data

Author(s):  
R.R. Stanichnaya ◽  
◽  
S.V. Stanichny ◽  
E.G. Arashkevich ◽  
◽  
...  
Numen ◽  
2003 ◽  
Vol 50 (2) ◽  
pp. 172-189
Author(s):  
Paul-Louis Van Berg

AbstractFriedrich Max Mueller thought that the "absurdity" of Aryan myths could be explained by a "disease of language," that is a shift implying that metaphor was taken for reality. Thus, cosmic and meteorological phenomena came to be considered as human beings living human adventures. He found the etiology of this disease in language, and specially in the polysemy and ambiguity of Vedic Sanskrit which he opposed to the limpidity of Hebrew. While the difference between the two languages does exist, the explanation has long been acknowledged to be false. Actually, the opposition becomes understandable if we consider that Indo-Europeans and Semites belong to much wider cultural basins. Indeed, characteristics attributed by Max Mueller to the Aryans also belong to the Altaic cultures, while those assigned to the Semites are shared not only by Hebrews, but also by many other Semitic and by non-Semitic cultures of the Near East. Hence, we can define two large cultural sets north and south of the Black Sea and the Caucasus. In the northern one, Indo-European and Altaic cultures share many traits: organization of space and time, society and knowledge, unreliability of the visible world, conception of the human body, rejection of figuration, for instance. In the southern one, we find radically different conceptions shared by the indigenous Near Eastern cultures. Considering that linguistic communication and ways of thinking are only aspects of these two cultural sets, elaborated separately since the Neolithic and adapted to different conditions of life, we may expect mythologies to reflect these differences and understand that the opposition of Vedic Sanskrit and Hebrew is only a small facet of a global phenomenon.


1873 ◽  
Vol 21 (139-147) ◽  
pp. 387-393

There is a general flow of the Black-Sea water through the Bosphorus, Marmara, and Dardanelles to the Mediterranean, probably caused by the combination of three things:—first, the prevalence of N. E. winds in the Black Sea; secondly, the excess of water received from the large rivers over the amount lost by temperature at some seasons; and, thirdly, the difference of specific gravities in the two seas. Of these, observation goes to prove that the wind has by far the greatest influence.


2021 ◽  
Vol 2 (2) ◽  
pp. 35-44
Author(s):  
A. N. Sokolova ◽  

The issue of the formation of different dance systems in one ethnic group (Circassians-Circassians), divided almost 200 years ago, representing the Circassian diasporas of Kosovo and Turkey, is considered. The reasons for the loss of cultural memory among representatives of the diaspora and its regeneration as a result of the resumption of cultural contacts with the Russian Adygs are investigated. The fragmentation of the cultural memory of the Circassian diaspora in Turkey is emphasized, associated with the formation of different dance systems among the Circassians (Shapsugs and Abadzeks) of the Black Sea coast (Duzce, Samsun) and the Circassians (Kabardians and Khatukays) of Kayseri. The difference in dance systems is also typical for the eastern and western Circassians in Russia. However, this fragmentation acts as an indicator of local diversity and, consequently, a source of cultural wealth and a resource for genre and dance exchange.


Algologia ◽  
2021 ◽  
Vol 31 (4) ◽  
pp. 365-381
Author(s):  
Yu.V. Bryantseva ◽  

Under conditions of climatic changes, it is of great interest to study the dynamics of various functional complexes of phytoplankton species. The long-term influence of previous cold winters on the course of the seasonal succession of phytoplankton, as well as the intensity of blooms in the open waters of the Black Sea, were shown earlier. In the coastal zone, this relationship has not yet been sufficiently studied. Based on regular monitoring studies in the coastal area of Sevastopol from 2009–2014, features of the course of seasonal succession of phytoplankton in years with different climatic conditions were revealed: the “cold” years differed from the “warm” ones by a longer dominance of diatom complexes in terms of cell abundance, especially of small-celled species, which characterize the initial stage of seasonal succession of phytoplankton. The level of development of both diatoms and dinoflagellates was minimal compared to other years, with a shift in the periods of maxima to later months. In contrast, the "warm" years were characterized by the predominance of dinoflagellates for most of the study period, with a shift in timing of the maxima to earlier months. Both diatoms and dinoflagellates reached their maximal development in “warm” years in spring and autumn. In the “moderate” years, phytoplankton development proceeded either by analogy with the “cold” (2009) or “warm” (2011) years. The seasonal succession described above is typical for the northwestern Black Sea, in particular, the Sevastopol coastal area, and differs from the average pattern for the northwestern part described earlier for 1992–1993. The difference consisted of an increase in the proportion of stages I and III due to a decrease in stage II compared to 1992–1993.


2016 ◽  
Author(s):  
A. A. Kubryakov ◽  
S. V. Stanichny ◽  
D. L. Volkov

Abstract. Satellite altimetry measurements show that magnitude of the Black Sea level trends is spatially uneven. While the basin-averaged sea level was increasing at a rate of 3.15 mm/year from 1993 to 2014, the sea level rise varied from 0.15–2.5 mm/year in the central part to 3.5–3.8 mm/year in coastal areas and 5 mm/year in the southwestern part of the sea. These differences are caused by changes in the large- and mesoscale circulation of the Black Sea. A long-term increase of the cyclonic wind curl over the basin from 1979 to 2014 strengthened divergence in the center of the Black Sea that led to an increase of sea level near the coast and a decrease in the center of the basin. Changes in the distribution and intensity of mesoscale eddies caused the formation of the local extremes of sea level trend. The variability of the dynamic sea level (DSL) – the difference between the local and the basin-averaged sea levels – contributes significantly (up to ~ 50 % of the total variance) to the seasonal and interannual variability of sea level in the basin. The DSL variability in the Black Sea depends strongly on the basin-averaged wind curl and is well reconstructed using the ERA-Interim winds from 1979 to present, including the time when altimetry data was unavailable. The reconstruction can be used to correct historical tide gauges data for dynamic effects, which are usually neglected in the analysis of the Black Sea tide gauge records.


2015 ◽  
Vol 49 (2) ◽  
pp. 171-180 ◽  
Author(s):  
P. E. Goldin ◽  
K. A. Vishnyakova

Abstract There are two porpoise stocks in the northern Black Sea: the north-western (Odessa Gulf) and northeastern (Crimean and Caucasian waters); in addition, another stock is in the Sea of Azov. The Azov porpoises are distinct in their body size and biology. This research was conducted on the skulls of stranded sexually mature porpoises from the north-eastern Black Sea, north-western Black Sea and the Sea of Azov. In the north-eastern Black Sea samples, both present-day and old-time, the sexual dimorphism of the skull size was not significant, whereas in the Sea of Azov the females were significantly larger than males. The Azov skulls were strongly different from those from the Black Sea: they were larger, proportionally wider and had the wider rostra; also, there was no significant chronological variation within the Black Sea. The Azov and Black Sea samples were classified with the 100 % success with four variables. The northwestern Black Sea skulls were somewhat intermediate in their characteristics between the Azov and northeastern Black Sea samples, but they were classify ed together with other Black Sea specimens. The difference between the Azov and Black Sea skulls was greater than between many North Atlantic populations, despite the extreme geographical proximity of the two stocks. The low variation within the Black Sea supports the earlier conclusions on the lack of genetic variation: all the Black Sea stocks are expected to be genetically similar sub-populations, whereas the Azov and Marmara stocks possibly represent the genetically distant populations. The porpoises from the Black Sea and the Sea of Azov equally show the traits which characterize the subspecies Phocoena phocoena relicta, but the Black Sea porpoises appear to be more paedomorphic in terms of ontogenetic trajectories.


2019 ◽  
Vol 36 (2) ◽  
pp. 163-169
Author(s):  
Ahmet Özer ◽  
Sevilay Okkay ◽  
Türkay Öztürk ◽  
Birol Baki ◽  
Gökçe Acar ◽  
...  

In the present study, monogenean infestations were investigated on the gills of the European seabass Dicentrarchus labrax grown in culture cages located at Yakakent coast of the Black Sea and Milas coast of the Aegean Sea. Parasitological investigations were conducted simultaneously at both localities during September 2014, February and April 2015. While a total of 100 fish specimens were examined from Yakakent samples whose average length was 19.37 cm, a total of 88 fish specimens were examined from Milas samples whose length was 22.67 cm in average. Only one monogenean species Diplectanum aequans was recovered from investigated fish specimens at both sampling localities. Infestation prevalence (%) and mean intensity values of D. aequans were 89.0% and 9.6 ± 0.8 in Yakakent samples while those infestation indices were 90.9% and 13.3 ± 1.2 in Milas samples, respectively. The difference between the infestation prevalence (%) values of D. aequans at both sampling localities was not statistically significant, on the other hand, the difference was statistically significant in the mean intensity values at both locations. Diplectanum aequans showed a homogeneous distribution in all gill arches of fish without any statistically significant difference. This is the first comparative study on the infestation of D. aequans on the gills of European sea bass D. labrax cultured in the Black Sea and the Aegean Sea.


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