Results 11 to 20 of about 1,744 (191)

Methodology for Identification of Areas with Possible Risk for Sturgeon Species Migration Disruption on The Lower Danube [PDF]

open access: yesE3S Web of Conferences, 2023
In the context of the continuing decline of the species belonging to the order Acipenseriformes on a global level, the anadromous sturgeon species sturgeon species in the Lower Danube have been affected by a significant reduction in historical migration ...
Tudor Georgeta   +6 more
doaj   +1 more source

A new well-preserved sturgeon (Chondrostei: Acipenseridae) from the Late Cretaceous of Alberta, Canada [PDF]

open access: yesResearch & Knowledge, 2017
In June 2016, the remains of an articulated fish was discovered during field work in Dinosaur Provincial Park, in southern Alberta, Canada. Articulated remains of fishes are very rare in the park, so this specimen was carefully collected and prepared ...
Hiroki Sato   +3 more
doaj   +1 more source

Identification and characterization of hybrids of Acipenser ruthenus and Acipenser baerii (Actinopterygii, Acipenseriformes) from the Irtysh River [PDF]

open access: yesActa Biologica Sibirica, 2021
Two sturgeon species, Acipenser ruthenus (Linnaeus, 1758) and Acipenser baerii (Brandt, 1869), inhabit the Irtysh basin. In 2018, we received some “atypical” specimens of sturgeon, which were similar to A. ruthenus but had a number of pronounced external
Elizaveta Liberman   +3 more
doaj   +3 more sources

Spontaneous autopolyploidy in the Acipenseriformes, with recommendations for management [PDF]

open access: yesReviews in Fish Biology and Fisheries, 2021
AbstractSturgeon and paddlefishes (Acipenseriformes) are cultured worldwide for commercial and conservation purposes. Over the past decade, we have learned many sturgeon culture programs experience spontaneous autopolyploidy, or the generation of triploidy without management intervention.
Andrea D. Schreier   +4 more
openaire   +3 more sources

The karyotype of the Amu Darya sturgeon, Pseudoscaphirhynchus kaufmanni (Actinopterygii: Acipenseriformes: Acipenseridae) [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2014
Background. Karyological studies of acipenserid fishes are of great importance because they present the only direct method to evaluate their ploidy levels for further research on polyploid evolution in these fishes. They are also important for prediction
K.V. Kovalev   +5 more
doaj   +3 more sources

A Multistep DNA-Based Methodology for Accurate Authentication of Sturgeon Species

open access: yesFoods, 2022
The sturgeons (order Acipenseriformes) are caviar producers and some of the most valuable fish species worldwide. Due to different reasons, wild populations are now at the brink of extinction.
Andreea Dudu   +3 more
doaj   +1 more source

Current state of the rearing of replacement young-of-the-year Acipenseriformes in the conditions of the southern Ukraine

open access: yesRibogospodarsʹka Nauka Ukraïni, 2017
Purpose. Examine and analyze the current state of storage fingerlings acipenseriformes cultivation, including sturgeon and paddlefish, in terms of industrial-experimental Dnieper sturgeon fish-growing factory located in the southern Ukraine ...
Ye. Alkhimov, V. Shevchenko
doaj   +1 more source

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

open access: yesArquivo 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   +3 more
doaj   +1 more source

Molecular cytogenetic differentiation of paralogs of Hox paralogs in duplicated and re-diploidized genome of the North American paddlefish (Polyodon spathula). [PDF]

open access: yes, 2017
BackgroundAcipenseriformes is a basal lineage of ray-finned fishes and comprise 27 extant species of sturgeons and paddlefishes. They are characterized by several specific genomic features as broad ploidy variation, high chromosome numbers, presence of ...
Amemiya, Chris T   +7 more
core   +4 more sources

Influence of interspecific hybridization on fitness-related traits in Siberian sturgeon and Russian sturgeon

open access: yesCzech Journal of Animal Science, 2019
Polyploidy in sturgeons makes them highly susceptible to interspecific hybridization, and these interspecific hybrids have been described in nature as well as in captivity.
Sahana Shivaramu   +6 more
doaj   +1 more source

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