Results 11 to 20 of about 3,371 (117)

Modern ecological problems of restoration and conservation of the sturgeon population in the Ural River basin

Юг России: экология, развитие, 2023
Aim. The aim of this study was to conduct an analysis of long‐term changes in the number of sturgeon populations and its relationship with the fishing regime and the current state of the Ural River basin, as well as develop measures for the conservation ...
K. M. Akhmedenov, A. A. Chibilev
doaj   +1 more source

Examination of white blood cell indicators for three different ploidy level sturgeon species reared in an indoor recirculation aquaculture system for one year

Veterinární Medicína, 2022
Functional diploid Acipenser ruthenus, functional tetraploid Acipenser gueldenstaedtii and functional hexaploid Acipenser brevirostrum juveniles were sampled monthly for one year, and the white blood cell indicators were determined.
E Salkova, D Gela, P Pecherkova, M Flajshans   +3 more
doaj   +1 more source

The first finding of Hassall's corpuscles in the thymi of cultured sturgeons

Veterinární Medicína, 2016
Histological examination of thymi from juvenile Acipenser ruthenus and Acipenser brevirostrum after haematoxylin and eosin staining revealed the presence of Hassall's corpuscles, in a scattered distribution within the thymic medulla in two of seven, and ...
E. Salkova, M. Flajshans
doaj   +1 more source

Marking fin spine of juvenile sturgeon (acipenseriformes: acipenseridae) using oxytetracycline and the comparing of growth performance

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2021
This study aimed to describe and validate the formation of the rings in the spine of the pectoral fin and to determine the coherence of the OTC mark with the rings of three species of Caspian Sea sturgeon, the Persian sturgeon (Acipenser persicus), the ...
S. Bakhshalizadeh, A. Bani, S. Abdolmalaki, J.T. Ponce-Palafox   +3 more
doaj   +1 more source

Embryonic Development and Survival of Siberian Sturgeon × Russian Sturgeon (Acipenser baerii × Acipenser gueldenstaedtii) Hybrids Cultured in a RAS System

Animals, 2022
The aim of this study was to describe the selected stages of embryonic development in Siberian sturgeon (Acipenser baerii) and hybrids of Siberian sturgeons and Russian sturgeons (Acipenser baerii × Acipenser gueldenstaedtii).
Dorota Fopp-Bayat, Tomasz Ciemniewski, Beata Irena Cejko   +2 more
doaj   +1 more source

Influence of repeated intravital extraction of eggs from sturgeon hybrids on their oogenesis under conditions of recirculation aquaculture system

Известия ТИНРО, 2015
Dynamics of cytomorphological characteristics of oocytes in ovaries is considered for two sturgeon hybrids: besters of the breed Burtlevskaya Huso huso (Linnaeus) x Acipenser ruthenus (Linnaeus) and the breed Aksayskaya Acipenser ruthenus x ( Huso huso x
Olga P. Filippova, Svetlana V. Piyanova, Sergey E. Zuevsky   +2 more
doaj   +1 more source

Ultrasonographic Findings of Ovary and Testis in Adult Acipenser Persicus During Artificial Propagation (Stage V of Maturity) [PDF]

Iranian Journal of Veterinary Surgery, 2013
Objective- Acipenser persicus is one of the most important caviar producing fishes in the Caspian Sea and one of the endangered species of the sturgeon fishes. For breeding of sturgeons, large numbers of animals have to be captured and examined to obtain
Alireza Vajhi, Abbas Veshkini, Majid Masoudifard, Mehdi Moghim, Mohammad Molazem   +4 more
doaj  

The complete mitochondrial genome of the hybrid sturgeon of Huso dauricus (♀) × Acipenser schrenckii (♂)

Mitochondrial DNA. Part B. Resources, 2017
The complete mitochondrial genome sequence of the hybrid of Huso dauricus (♀) × Acipenser schrenckii (♂) is described in this study. The 16,693bp long circular molecule consisted of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a control ...
Xueqing Liu, Hejun Du, Kan Xiao, Yacheng Hu, Juanjuan Liu, Xun Zhao   +5 more
doaj   +1 more source

Isolation and partial characterization of serum immunoglobuline in two species of sturgeons, Siberian sturgeon (Acipenser baerii) and Stellate sturgeon (Acipenser stellatus)

Marine Science and Technology Bulletin, 2018
The immunoglobulins (Igs) were isolated and purified respectively from serum of Siberian sturgeon (Acipenser baerii) and Stellate sturgeon (Acipenser stellatus) by using 50% saturated ammonium sulfate precipitation. Analysis of the purified Ig of the two
Azadeh Yektaseresht, Zahra Hemati, Amin Gholamhosseini   +2 more
doaj   +1 more source

Multi‐Marker Mitochondrial Analysis Reveals Genetic Diversity and Phylogenetic Relationships of Black Sea Sturgeons (Acipenseridae)

Ecology and Evolution
Sturgeons represent a critical taxon for conservation due to their complex genetic structure and vulnerability to anthropogenic pressures, including poaching, overfishing, and habitat loss. This study provides a multi‐level mitochondrial characterization
György Deák, Raluca Prangate, Monica Matei, Mădălina Boboc, Elena Holban   +4 more
doaj   +1 more source