The state of natural reproduction of stellate sturgeon Acipenser stellatus in the Lower Volga

2009 ◽  
Vol 49 (8) ◽  
pp. 662-667
Author(s):  
P. V. Veshchev
Keyword(s):  
The State ◽  
Stellate Sturgeon ◽  
Lower Volga ◽  
Natural Reproduction ◽  
Acipenser Stellatus

Comparative evaluation of breeding lines of sugar sorgo in competitive variety testing

2020 ◽  
Author(s):  
E. A. Vertikova ◽  
Keyword(s):  
Comparative Evaluation ◽  
The State ◽  
Volga Region ◽  
Lower Volga Region ◽  
Breeding Lines ◽  
Variety Trial ◽  
Lower Volga ◽  
Variety Testing

In a competitive variety trial, promising selection lines of sugar sorghum were studied in the Lower Volga region. Based on a set of signs, the best lines were identified, which are recommended for transfer to the State Variety Testing. Breeding lines, which are distinguished by high values of commercially valuable traits, can be used in planned crosses to create highly productive varieties and hybrids of sugar sorghum.

524 The changes in the parameters of energetic status of the stellate sturgeon Acipenser stellatus Palls spermatozoa after short-time exposure to lead ions in vitro

2003 ◽  
Vol 144 ◽  
pp. s140-s141
Author(s):  
I. Baranowska-Bosiacka ◽  
A. Rzemieniecki ◽  
M. Rutkowska ◽  
G.J. Dietrich ◽  
A. Ciereszko ◽  
...  
Keyword(s):  
Lead Ions ◽  
Time Exposure ◽  
Stellate Sturgeon ◽  
Acipenser Stellatus ◽  
Short Time

The effects of every-other-day feeding on the growth performance of yearling stellate sturgeon, Acipenser stellatus

2017 ◽  
Vol 30 (1) ◽  
pp. 39-46
Author(s):  
Christian Lane ◽  
Elisa J. Livengood ◽  
Richard D. Miles ◽  
Frank A. Chapman
Keyword(s):  
Growth Performance ◽  
Stellate Sturgeon ◽  
Acipenser Stellatus

MICROSATELITE VARIABILITY OF THE CASPIAN STELLATE STURGEON POPULATION (ACIPENSER STELLATUS)

2020 ◽  
Vol 1 ◽  
pp. 315-317
Author(s):  
E.G. Makarova ◽  
◽  
N.V. Kozlova ◽  
M.A. Baregamyan ◽  
◽  
...  
Keyword(s):  
Stellate Sturgeon ◽  
Acipenser Stellatus

Sex steroids and cortisol levels in the blood of stellate sturgeon (Acipenser stellatus Pallas) during final maturation induced by LH-RH-analogue

2006 ◽  
Vol 22 (s1) ◽  
pp. 334-339 ◽  
Author(s):  
Liubov Bayunova ◽  
Adelino V. M. Canario ◽  
Tatiana Semenkova ◽  
Valentin Dyubin ◽  
Olga Sverdlova ◽  
...  
Keyword(s):  
Sex Steroids ◽  
Stellate Sturgeon ◽  
Final Maturation ◽  
Acipenser Stellatus ◽  
Cortisol Levels ◽  
Lh Rh

scholarly journals Level and Characteristics of Interfaith Tension of the Bottom Volga Area

2020 ◽  
pp. 83-91
Author(s):  
Ivan Suslov ◽  
Keyword(s):  
The State ◽  
Political Life ◽  
Internet Survey ◽  
Volga Region ◽  
Muslim Community ◽  
Lower Volga Region ◽  
Interfaith Relations ◽  
Lower Volga ◽  
Volgograd Region ◽  
High Level

The article analyzes the data of a sociological survey conducted in the spring of 2020 of the Bottom Volga area by the research team of the Department of history, political science and sociology of the Saratov state law Academy. Primary sociological information was collected using the Internet survey of respondents using the Google forms service. The sample size was 1,100 people. Representatives of the Astrakhan region (184 respondents), Volgograd region (307) and Saratov region (609) were interviewed. The empirical study allowed us to determine the influence of respondents' religion on the perception of religious threats, as well as problems of interfaith dialogue. The regional specifics of the quality of interfaith relations were revealed, and the levels of religious tension in the Astrakhan, Volgograd and Saratov regions were compared. The survey revealed hidden tensions in the region's interfaith relations (including among the Orthodox majority). Representatives of the Muslim community showed an optimistic attitude in their responses. A potentially dangerous predisposition to politicizing religion has been identified among those groups that are under pressure to identify with their faith. The study revealed: there is a high level of concern about issues of faith among representatives of the Muslim community; a positive attitude towards increasing the role of religion in socio-political life, increasing the level of secularization of society. Atheists of the Lower Volga region showed open dissatisfaction with the state of religious relations in the region. Atheists of the Lower Volga region showed open dissatisfaction with the state of religious relations in the region. This group appears as an object of the religious security system, which under pressure is transformed into a subject protesting against secularization processes. The author concludes that the main strategy should be to study and solve the internal problems of religious minorities, and a complementary strategy can be to counteract external (foreign) religious threats.

scholarly journals ECOLOGICAL AND PHYSIOLOGICAL ASPECTS OF STURGEON CULTIVATION IN INDUSTRIAL CONDITIONS

2017 ◽  
pp. 128-135
Author(s):  
Angelika Vyachislavovna Kovaleva ◽  
Petr Petrovich Geraskin ◽  
Vadim Alekseevich Grigoriev ◽  
Gennadiy Fedorovich Metallov ◽  
Elena Nikolaevna Ponomareva
Keyword(s):  
Serum Protein ◽  
Bacterial Contamination ◽  
Physiological State ◽  
Physiological Status ◽  
Water Supply Systems ◽  
Natural Habitats ◽  
Stellate Sturgeon ◽  
Lower Volga ◽  
Study Results ◽  
Sturgeon Fish

Physiological state of the stellate sturgeon female species ( Acipenser stellatus ) caught in spring in the fishing area in the Lower Volga delta and the female species farmed at the Bertyulckiy and Lebyahzje sturgeon fish-factories in the Astrakhan region were evaluated by biochemical parameters of blood taken in fish after hypophysial injection. At each sturgeon fish-factories there were revealed 2 groups of fish with different biochemical status. At the Bertyulskiy sturgeon fish-factory in the first group blood values were normal, in the second group the level of serum protein, β-lipoproteids, cholesterol and hemoglobin in blood was lower by 1.5, 4.3, 1.7 and by 1.2 times, correspondingly. At the Lebyahzje sturgeon fish-factory in female species of one group the level of serum protein, β-lipoproteids and cholesterol was even lower: in 1.8, 2.5 and 2.3 times. In the group of stellate sturgeon females with a lower concentration of biochemical components in blood there was revealed excessive total bacterial contamination: at the Bertyulskiy fish-factory - in 3 times, at the Lebyahzje - in 8 times. The results obtained allow to suggest the dependency of the bacterial contamination level on physiological status of fish. Study of stellate sturgeon females caught in spring in the lower reaches of the Volga and females used for fish breeding at the sturgeon fish-factory showed that under equal physiological status the level of total contamination of fish was much higher at the fish-factory, i.e. fish in natural habitats were more resistant to infection. The comparative analysis of physiological status of stellate sturgeon males and females caught in spring in the lower Volga and having similar physiological status revealed, that females during spawning run had higher level of total contamination. The study results can be used for the diagnosis and correction of the physiological state of sturgeons cultivated in ponds with closed water supply systems with the application of artificial feed.

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