Results 121 to 130 of about 1,047 (168)

Evidence of mitochondrial DNA clones of Siberian sturgeon, Acipenser baerii, within Russian sturgeon, Acipenser gueldenstaedtii, caught in the River Volga

Ecology Letters, 2000
Eleven of 34 sturgeons caught in the River Volga classified morphologically as Acipenser gueldenstaedtii were identified as Acipenser baerii from sequence analysis of the mitochondrial cytochrome-b gene.
J -N Meyer
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A Comment on the Siberian, Acipenser baerii, and Russian, Acipenser gueldenstaedtii, Sturgeons

Environmental Biology of Fishes, 2004
Contrary to the opinion of Kynard et al. (2002), the Siberian sturgeon, Acipenser baerii, does not belong to the Ponto-Caspian species. It inhabits Siberian rivers and Lake Baikal. Acipenser baerii is a typical potamodromous species and the comparison of the behavior of its embryos and larvae with those of the anadromous Russian sturgeon, Acipenser ...
Vadim J. Birstein, Georgii Ruban
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Mitochondrial genome of the Siberian sturgeonAcipenser baerii

Mitochondrial DNA, 2012
The complete mitochondrial genome of Siberian sturgeon Acipenser baerii had been determined. The total length of the mitogenome was 16,763 bp and had 13 protein-coding, 22 tRNA, and 2 rRNA genes. Except for the eight tRNA and Nd6 genes, all other mitochondrial genes are encoded on the heavy strand. The overall base composition of the heavy strand is 30.
Xiao Wu, Chen, Shan, Jiang, Zhi Yi, Shi, Qian, Li, Xing Rong, Xun, Da Qing, Guo   +5 more
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Isolation and characterization of 34 SNP markers in Acipenser baerii

Conservation Genetics Resources, 2021
Acipenser baerii is one of the most important sources of caviar production. However, the population of the A. baerii is constantly being reduced in recent years due to dam construction, overfishing, and water pollution. Insufficient molecular markers have limited the effective conservation and management of this species; In the present study, we ...
Quan Gong, Qingzhi Li, Jiahua Sun, Yu Xiao, Xutao Su, Guangxun Liu, Jun Du, Jue Lin   +7 more
openaire   +1 more source

Siberian sturgeon Acipenser baerii in the River Pechora

Journal of Ichthyology, 2007
The paper reports the first reliable capture since the last 150 yr of two sturgeons in the basin of the River Pechora. Both specimens had the systematic traits of the Siberian sturgeon Acipenser baerii but differed significantly in external morphology. Data on biological traits and morphological parameters of the fish are presented.
A. B. Zakharov, M. D. Tumanov, S. N. Shalaev   +2 more
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Osmoregulation in juvenile Siberian sturgeon (Acipenser baerii)

Fish Physiology and Biochemistry, 2002
The osmoregulation capabilities of juvenile Siberian sturgeon exposed to three experimental osmolalities (22, 250 and 387 mOsmol kg−1) were studied over a 45-day period. Growth performance, haematological parameters, ion concentrations, gill and spiral valve Na+-K+-ATPase activities, as well as gill and spiral valve histology, were measured. At the end
A. Rodríguez, M.A. Gallardo, E. Gisbert, S. Santilari, A. Ibarz, J. Sánchez, F. Castelló-Orvay   +6 more
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New extender for cryopreservation of Siberian sturgeon (Acipenser baerii) semen

Cryobiology, 2015
The goal of this study was to develop a simple glucose-methanol extender for cryopreservation of Siberian sturgeon (Acipenser baerii) semen. Semen quality was assessed by determining post-thaw sperm motility and fertilizing ability at hatching stage. We tested the effect of glucose concentration (0, 0.10, 0.15, 0.20 and 0.30 M) in a methanol extender ...
S, Judycka, M, Szczepkowski, A, Ciereszko, G J, Dietrich   +3 more
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Motility analysis and energetics of the Siberian sturgeon Acipenser baerii spermatozoa

Journal of Applied Ichthyology, 1999
90% des spermatozoïdes sont activés en quelques secondes après dilution puis réduiront régulièrement leur activité juqu'à 5-10% au bout de 2mn. Durant la même période, le battement des spermatozoïdes baissera de 50Hz à 25-40Hz après 40sec. Le mouvement des flagelles, d'abord distribué uniformémént sur toute la longueur, disparaîtra de l'extrémité chez ...
Billard, Roland, Cosson, J., Fierville, F., Brun, Rémy, Rouault, T., Williot, Patrick   +5 more
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The multilevel responses of Acipenser baerii and its hybrids (A. baerii ♀ × A. schrenckii ♂) to chronic heat stress

Aquaculture, 2021
Abstract The global warming profoundly impacts on fishes' survival by imposing a chronic heat stress condition, but the thermoregulation mechanism of fishes, especially for cold-water fishes, against chronic heat stress remains to be explored. In this study, we evaluated the thermal resistance of Acipenser baerii and its hybrids (A.
Shiyong Yang, Xixi Yang, Yunkun Li, Datian Li, Quan Gong, Xiaoli Huang, Jiayun Wu, Anqi Huang, Fanli Kong, Xingfa Han, Xianyin Zeng, Chaoyang Zhang, Jun Du, Xiaogang Du   +13 more
openaire   +1 more source