scholarly journals Ecological, Biological and Hematological Index of the Blood Analysis of Sturgeons (Acipenser) in the Caspian Sea

2021 ◽  
Author(s):  
Naid Abdulaeva ◽  
Saniyat Alieva
Keyword(s):  
Red Blood Cells ◽  
Caspian Sea ◽  
Blood Cells ◽  
Blood Analysis ◽  
Anthropogenic Load ◽  
Russian Sturgeon ◽  
The Caspian Sea ◽  
Acipenser Gueldenstaedtii ◽  
Hematological Index ◽  
Acipenser Stellatus

The Caspian is a unique drainless water body with no connection to the ocean. This study of the peculiarities of blood cell composition of the Russian sturgeon (Acipenser güldenstädtii) and sevruga (Acipenser stellatus) revealed minor destructive disorders of the blood cells. The number of blood cells also deviated from conditional norms. The study of the leukocyte profile of sturgeons showed the granular forms of leukocytes, band neutrophils and eosinophils, and segmentonuclear neutrophils and eosinophils. The total number of granulocytes in the blood of the Russian sturgeon was increased, which indicated the activation of the body’s protective systems in response to the anthropogenic load. In cytomorphological terms, the destructive disorders were revealed. Such phenomena are associated with the ever-increasing anthropogenic load on the biocenoses of natural reservoirs. Summarizing the results, it can be concluded that the quantitative indicators of red blood in the Russian sturgeon (Acipenser gueldenstaedtii) and sevruga (Acipenser stellatus) caught off of the Dagestan coast of the Caspian Sea were reduced in the spring of 2018 compared to 2016, but were in the normal range given in the literature. The concentration of hemoglobin in the Russian sturgeon and sevruga in 2016 was 13% and 15% higher than in 2014, respectively. This phenomenon could be a measure to compensate for the lack of oxygen in various fish tissues and organs. Keywords: Russian sturgeon, red blood cells, lymphocytes, eosinophils, neutrophils, anisocytosis, cytolysis of red blood cells

scholarly journals Evolutionary relations and population differentiation of Acipenser gueldenstaedtii Brandt, Acipenser persicus Borodin, and Acipenser baerii Brandt

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 2807
Author(s):  
Alexey A. Sergeev
Keyword(s):  
Dna Markers ◽  
Caspian Sea ◽  
Nuclear Dna ◽  
Russian Sturgeon ◽  
Sea Of Azov ◽  
Genetic Isolation ◽  
The Caspian Sea ◽  
Persian Sturgeon ◽  
Acipenser Gueldenstaedtii ◽  
Nuclear Dna Markers

Russian (Acipenser gueldenstaedtii), Persian (A. persicus) and Siberian (A. baerii) sturgeons are closely related ‘Ponto-Caspian’ species. Investigation of their population structure is an important problem, the solution of which determines measures for conservation of these species. According to previous studies, ‘baerii-like’ mitotypes were found in the Caspian Sea among 35% of Russian sturgeon specimens, but were not found in Persian sturgeons. This confirms genetic isolation of the Persian sturgeon from the Russian sturgeon in the Caspian Sea. However, in order to clarify the relationships of these species it is necessary to analyze nuclear DNA markers. The amplified fragment length polymorphism (method) allows estimating interpopulation and interspecific genetic distances using nuclear DNA markers. In the present study, four samples were compared: Persian sturgeons from the South Caspian Sea, Russian sturgeons from the Caspian Sea and the Sea of Azov, and Siberian sturgeons from the Ob’ River, which are close to these two species, but are also clearly morphologically and genetically distinct from them. For the AFLP method, eight pairs of selective primers were used. The analysis revealed that the Siberian sturgeon has formed a separate branch from the overall Persian-Russian sturgeons cluster, which was an expected result. In addition, the results showed that the Caspian Russian sturgeon is closer to the Persian sturgeon from the Caspian Sea than to the Russian Sturgeon from the Sea of Azov. The present DNA marker data confirm that despite the genetic isolation of the Persian sturgeon from the Russian sturgeon in the Caspian Sea, the Persian sturgeon is a young species.

scholarly journals Evolutionary relations and population differentiation of Acipenser gueldenstaedtii Brandt, Acipenser persicus Borodin, and Acipenser baerii Brandt

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 2807
Author(s):  
Alexey A. Sergeev
Keyword(s):  
Dna Markers ◽  
Caspian Sea ◽  
Nuclear Dna ◽  
Fragment Length Polymorphism ◽  
Russian Sturgeon ◽  
Genetic Isolation ◽  
The Caspian Sea ◽  
Persian Sturgeon ◽  
Acipenser Gueldenstaedtii ◽  
Nuclear Dna Markers

Russian ( Acipenser gueldenstaedtii), Persian ( A. persicus) and Siberian ( A. baerii) sturgeons are closely related ‘Ponto-Caspian’ species. Investigation of their population structure is an important problem, the solution of which determines measures for conservation of these species. According to previous studies, ‘baerii-like’ mitochondrial genotypes were found in the Caspian Sea among 35% of Russian sturgeon specimens, but were not found in Persian sturgeons. This confirms genetic isolation of the Persian sturgeon from the Russian sturgeon in the Caspian Sea. However, in order to clarify the relationships of these species it is necessary to analyze nuclear DNA markers. The amplified fragment length polymorphism (method) allows estimating interpopulation and interspecific genetic distances using nuclear DNA markers. In the present study, four samples were compared: Persian sturgeons from the South Caspian Sea, Russian sturgeons from the Caspian Sea and the Sea of Azov, and Siberian sturgeons from the Ob’ River, which are close to the latter two species, but are also clearly morphologically and genetically distinct from them. For the amplified fragment length polymorphism (AFLP) method, eight pairs of selective primers were used. The analysis revealed that the Siberian sturgeon has formed a separate branch from the overall Persian-Russian sturgeons cluster, which was an expected result. In addition, the results showed that the Caspian Russian sturgeon is closer to the Persian sturgeon from the Caspian Sea than to the Russian Sturgeon from the Sea of Azov. The present DNA marker data confirm that despite the genetic isolation of the Persian sturgeon from the Russian sturgeon in the Caspian Sea, the Persian sturgeon is a young species.

scholarly journals Theoretical Estimate of Energy Balance and Nutritional Needs of the Population of Russian Sturgeon Acipenser gueldenstaedtii in the Caspian Sea

2019 ◽  
Vol 77 (2) ◽  
pp. 63-76 ◽  
Author(s):  
Leonid Alexandrovich Zykov ◽  
Botagoz Murasovna Nasibulina ◽  
Tatyana Fedorovna Kurochkina ◽  
Attaala Muhaysin Ali ◽  
Nikolai Nikolaevich Popov ◽  
...  
Keyword(s):  
Energy Balance ◽  
Caspian Sea ◽  
Theoretical Estimate ◽  
Russian Sturgeon ◽  
Natural Mortality ◽  
The Caspian Sea ◽  
Energy Process ◽  
Acipenser Gueldenstaedtii ◽  
Natural Reproduction ◽  
Nutritional Needs

Abstract Individual and group annual rations of Russian sturgeon Acipenser gueldenstaedtii are calculated on the basis of models describing the energy balance and dynamics of the number of fish generations with natural mortality depending on age. The structure of the energy balance and its separate components were studied. It is shown that the greatest amount of energy of consumed food by the population is spent on energy process. Individual rations of Russian sturgeon increase with age, whereas group rations decrease. The received results can be used to theoretically estimate the volumes of artificial and natural reproduction that provides the formation of stocks of Russian sturgeon in accordance with the forage productivity of the Caspian Sea.

scholarly journals DISTRIBUTION AND NUTRITION OF RUSSIAN STURGEON JUVENILES ( АCIPENSER GUELDENSTAEDTII, АCIPENSERIDAE) IN THE NORTH-WESTERN PART OF THE CASPIAN SEA

2019 ◽  
Vol 20 (3) ◽  
pp. 326-338
Author(s):  
S.V. Shipulin ◽  
◽  
S.V. Kanat’ev ◽  
I.N. Lepilina ◽  
E’.Ju. Tikhonova ◽  
...  
Keyword(s):  
Caspian Sea ◽  
Russian Sturgeon ◽  
The Caspian Sea ◽  
The North ◽  
North Western

scholarly journals Temporal variability of catches, distribution and dynamics of length of Russian sturgeon in waters of the Caspian Sea in 2015 –2020

2021 ◽  
Vol 0 (4) ◽  
pp. 80-90
Author(s):  
Irina Victorovna Konopleva
Keyword(s):  
Caspian Sea ◽  
Adult Population ◽  
Water Layer ◽  
Middle Part ◽  
Russian Sturgeon ◽  
The Caspian Sea ◽  
Bottom Water Layer ◽  
The North ◽  
Shallow Zone ◽  
Heating Up

The paper presents long-term data on catches, distribution and length dynamics of Russian sturgeon in the waters of the Caspian Sea for the summer-autumn periods in 2015-2020. When considering the catches in the different parts of the sea there is found their annual variability, which is especially noticeable in the shallow zone in the North Caspian (0.31-2.0 specimens/trawl) and in the Middle Caspian (0-1.31 specimens/trawl). In the course of determining the reasons for the interannual dynamics of catches there were revealed several decadal rises. The dependence of decadal catches on the temperature of the bottom water layer was analyzed. The highest rise in catches was observed in the first decade of September when the temperature of water lowered up to 20.0-15.0 °C. The increase was observed due to migrating individuals to the shallow zone of the Northern Caspian Sea from shallow waters. Despite the variability of catches, the localization of Russian sturgeon schooling in the northern and middle part of the sea during the summer-autumn periods of 2015-2020 has certain similar features and trends. Sturgeon species fed mainly on shallow banks and deep dumps, where the largest catches of sturgeon were recorded from 5.0 to 12.0 specimens/trawl. The absence of sturgeon at depths of up to 3.0 m isobath in the last five years is due to the water heating up to 27.6-28.8 °C. The decrease in the length of the Russian sturgeon observed in recent years is due to an increase in the proportion of youngsters (19.2-70.0%) against the background of a decrease in the adult population. It should be noted that from 2017 to 2019 there were not found the adult species in the catches by fishing nets, which indicates their continued re-moval from the population.

THE INFLUENCE OF ENDOMETRIOID HETEROTOPIAS ON THE RED BLOOD PARAMETERS

2020 ◽  
Vol 65 (7) ◽  
pp. 424-427
Author(s):  
R. V. Ukrainets ◽  
Yulia Sergeevna Korneva
Keyword(s):  
Red Blood Cells ◽  
Blood Cells ◽  
Blood Parameters ◽  
Blood Analysis ◽  
Ca 125 ◽  
Differential Diagnostics ◽  
Ovarian Cysts ◽  
Control Group ◽  
Before And After ◽  
Medical Histories

Endometrioid heterotopia can have an adverse systemic effect on the organism through erythropoietin synthesis, which can affect erythropoiesis and reflect in blood analysis. The aim of the study was to investigate the effect of endometrioid heterotopia on parameters of red blood. The investigated group included patients with endometrioid heterotopias of various localisations (115 cases), functional ovarian cysts made up the control group (28 cases). Retrospectively, the number of red blood cells, the amount of hemoglobin, and the level of (CA-125) were recorded in the medical histories. The parameters were taken into account both before and after radical surgery. The highest values of the number of red blood cells and hemoglobin are observed in endometrioid ovarian cysts, followed by adenomyosis, endometriosis of the pelvic peritoneum and skin scar, respectively. After surgery, these differences have disappeared. Comparison of the number of red blood cells and hemoglobin before and after surgery revealed significant changes for both parameters in the group of patients with endometriosis, while in the control group the number of red blood cells and the level of hemoglobin did not change significantly. The number of cases with endometrioid ovarian cysts, where the red blood cell count was higher than normal, significantly differed from the control group; on the contrary, with non-endometrioid ovarian cysts, a significantly more frequent decreased number of red blood cells was observed. In addition, red blood counts in patients with endometriosis before surgery had a moderate negative correlation with the level of CA-125 protein.The possible systemic influence of endometrioid heterotopias on erythropoiesis in the form of its stimulation is demonstrated. In non-endometrioid ovarian cysts a significantly more frequent decrease in the number of red blood cells is observed. The reveales pecularities can be used for complex differential diagnostics of ovarian cysts at the preoperative stage due to their easy accessibility and minimally invasive nature.

Otolith microstructure of the Russian sturgeon, Acipenser gueldenstadti

2002 ◽  
Vol 82 (4) ◽  
pp. 679-680
Author(s):  
Takaomi Arai ◽  
Nobuyuki Miyazaki
Keyword(s):  
Caspian Sea ◽  
Age Determination ◽  
Russian Sturgeon ◽  
Otolith Microstructure ◽  
The Caspian Sea ◽  
Otolith Increments ◽  
Anterior Side

Otolith microstructure of the Russian sturgeon, Acipenser gueldenstadti was examined in adult samples collected in the Caspian Sea. The microstructure of the otolith was the same among specimens. The anterior side of the sagitta grew in two directions elongating both the long and short arms, and the long arm sections exhibited 14–21 distinct translucent and opaque zones. Otolith increments in this species can be used for age determination.

Understanding the coffee-ring effect of red blood cells for engineering paper-based blood analysis devices

2020 ◽  
Vol 391 ◽  
pp. 123522 ◽  
Author(s):  
Rong Cao ◽  
Zhirong Pan ◽  
Hua Tang ◽  
Jing Wu ◽  
Junfei Tian ◽  
...  
Keyword(s):  
Red Blood Cells ◽  
Blood Cells ◽  
Blood Analysis ◽  
Coffee Ring ◽  
Coffee Ring Effect ◽  
Ring Effect
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