Distribution of Diphyllobothrium latum in the populations of pike in lakes of Transbaikalia

2016 ◽  
Vol 3 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Жепхолова ◽  
O. Zhepkholova ◽  
Дугаров ◽  
Zh. Dugarov ◽  
Толочко ◽  
...  

Objective of research. The aim of the study was to explore the degree of contamination of pike and other fish species, plerosarcoidoma Diphyllobothrium latum in water bodies of the Baikal region. Materials and methods. In 2009-2014 was conducted parasitological study on infestation role of the D. latum plerocercoids of various species of fish. Just investigated 20 specimens of pike, 38 – burbot, 91 – perch and ruff 73 specimens in lakes of the North-Eastern part of Transbaikalia, located located in different districts of the Republic of Buryatia. The infection of fish with plerocercoids of D. latum were evaluated by extensiveness (EI), the abundance index (EI) and the intensity of infection (AI). Results and discussion. The pike infestation with plerocercoids of D. latum in lake. Goose in 2013-2014 decreased in 3 times compared with a maximum in 1973-1974 and was 0.8 % most Often, the D. latum plerocercoids are localized in the adipose tissue, the gonads, the wall of the swim bladder, liver, peritoneal epithelium, muscle, the wall of the stomach and the villagesince respectively 40,9 %; 13,8; 9,1; 9,1; 9,1; 4,5; 4,5; 4,5 and 4.5 % of cases. In Transbaikalia the fish parasitize three species of tapeworms, of which the epidemiological importance of the D. latum, D. dendriticum. D. ditremum in humans does not develop until the adult stage. In the region annually celebrate 150-450 cases of difillobotrioza in humans. In the basin of the Selenga river is-the reputed source of human infection by difillobotrioza are pike and perch, the infected with its good-Azerbaijani D. latum and the Baikal omul Coregonus migratorius infected with D. dendriticum. EI Baikal omul D. dendriticum is 62.3-100 %, and IO – 4,0-9,8 copies of This cestode is brought in the Selenga river from oz. The Baikal in the autumn spawning of Arctic Cisco. On owasco-FDI sample of human feces is impossible to distinguish the species D. latum and D. dendriticum. Probably in the Selenga region of Buryatia, there is a hotbed of difillobotrios caused by these two species of cestodes.

Author(s):  
Magdalena Zarzyka-Ryszka

The paper describes the past and present distribution of Colchicum autumnale in the vicinity of Cracow, highlights the role of Stanisław Dembosz (who published the first locality of C. autumnale near Igołomia in 1841). Gives information about the occurrence of C. autumnale in Krzeszowice in the 19th century (reported by Bronisław Gustawicz), presents new localities noted in 2012–2014 in meadows in the north-eastern part of the Puszcza Niepołomicka forest and adjacent area (between the Vistula and Raba rivers), and gives a locality found in Cracow in 2005 (no longer extant).


Vestnik MGTU ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 80-87
Author(s):  
M. V. Huber ◽  
A. V. Mokrushin

The sulfur isotope geochemistry of the Khibina and Lovozero agpaitic massifs provides an opportunity to understand the role of plume-lithosphere interaction processes responsible for the Paleozoic alkaline igneous activity in the north-eastern part of the Fennoscandian Shield. The stable sulfur isotope δS analysis using triple collector isotope ratio mass spectrometer (IRMS) has been carried out on the pentlandite, chalcopyrite and pyrite from nepheline syenites. The δS values for pentlandite from Khibina rocks range from +0.69 to +2.06 ‰ relative to the Vienna Canyon Diablo Troillite standard (VCDT), and the pyrite has significantly higher δS values up to +4.92 ‰ VCDT. The pentlandite from the Lovozero samples has value +1.48 ‰ VCDT, δS values of chalcopyrite is +2.85 ‰ VCDT. The maximum positive δS values are obtained for Lovozero pyrite, which vary from +5.41 to +6.30 ‰ VCDT. Comparison of sulfur-geochemical features of Khibina and Lovozero nepheline syenite with δS data for the carbonatites from the Khibina, Sallanlatvi, Seblyavr, Vuoriyarvi, Salmagora and Kovdor massifs show later carbonatite formation relatively to associated alkaline rocks. Geochemical sulfur isotope δS investigations emphasizes that parental magmas of the Khibina and Lovozero alkaline massifs were derived from a metasomatized subcontinental lithospheric mantle (SCLM). We suggest that high-δS signature on the SCLM (δS of +1 to +6 ‰ VCDT) can be explained by subduction of the high-δS Archaean crust.


2016 ◽  
Vol 10 (1) ◽  
pp. 161-170
Author(s):  
Liviu Ioan Pelin

Abstract The Moldavian Plain, located in the North-Eastern part of Romania, has a temperate-continental climate with a nuance of excessivity in the precipitation regime. This paper aims to analyse droughts in the Moldavian Plain for the period 1961-2010, by using a classical method - the de Martonne Aridity Index, and two other less known indices developed in Romania and the Republic of Moldova. Among these indices, the Dry Spells Index demonstrates a increasing frequency of dry years in recent decades.


Diacronia ◽  
2016 ◽  
Author(s):  
Adina Dragomirescu ◽  
Alexandru Nicolae

This paper deals with two verbal forms which, despite being traditionally labelled as “non-finite”, display inflection/agreement. We will focus on the behaviour and origin of the inflected infinitive attested in Romance and in languages from other families, against which we analyse the novel inflected supine found in the north-eastern area where Romanian is spoken (comprising the Republic of Moldova, Ukraine and the north-eastern part of the Romanian province of Moldova). The goal of the paper is to identify the common paths of diachronic change of these verbal forms and to put forward a formal account of the observed diachronic changes. From a diachronic perspective, our analysis shows that the functional structure of non-finite forms may become more enriched, a conclusion that is at odds with traditional findings, which generally argue for simplification, not enrichment of functional structure. At the same time, the proposed analysis also offers some insights into the diachrony of the supine marker de.


2016 ◽  
Vol 3 (3) ◽  
pp. 337-344
Author(s):  
Кандрычын ◽  
S. Kandrychyn

Objective of research: The analysis of spatial distribution of ascariasis among the population in different regions of the republic of Belarus with respect to anthropological and cultural aspects. Investigations for regional differences in ascariasis conducted in the USSR were focused rather on climatic, hygienic and economic factors and didn’t consider the causative role of cultural and anthropological factors in epidemiological process. The study is aimed at correlation of regional indices of ascariasis with the previously defined spatial historical gradient manifested in Belarus. Materials and methods: The effect of social and cultural spatial gradient was assessed by comparison of difference in ascariasis morbidity between eastern and western regions of Belarus. Thus, the effect of ethnic and anthropological spatial gradient was considered in comparison of epidemiological indices between the Brest region (south-western part of Belarus) and Vitebsk region (north-eastern part). The analysis was conducted with the historical perspective; the regional epidemiological statistics were provided for two periods 1970-1989 and 2000-2014. Regional statistical materials of the republic of Belarus presented in the annual reports of the national Ministry of Health were used as an empirical basis. Results and discussion: The analysis showed, that the differentiation trend in distribution of ascariasis in Belarus correlates both with historical-cultural and anthropological spatial gradients. The identified pattern of regional differentiation allows to evaluate the complex effect of sociocultural and anthropogenic components on epidemiological features of ascariasis.


Author(s):  
Sergey B. Kuklev ◽  
Vladimir A. Silkin ◽  
Valeriy K. Chasovnikov ◽  
Andrey G. Zatsepin ◽  
Larisa A. Pautova ◽  
...  

On June 7, 2018, a sub-mesoscale anticyclonic eddy induced by the wind (north-east) was registered on the shelf in the area of the city of Gelendzhik. With the help of field multidisciplinary expedition ship surveys, it was shown that this eddy exists in the layer above the seasonal thermocline. At the periphery of the eddy weak variability of hydrochemical parameters and quantitative indicators of phytoplankton were recorded. The result of the formation of such eddy structure was a shift in the structure of phytoplankton – the annual observed coccolithophores bloom was not registered.


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