Results 91 to 100 of about 1,410 (199)

PHYSICO-CHEMICAL LIMITATIVE FACTORS FOR GROWTH AND DEVELOPMENT IN STERLET (ACIPENSER RUTHENUS LINNAEUS, 1758) IN EXTENSIVELY SYSTEM

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The oldest and most common method of increasing fish is a fish breeding ponds in which the supervision of nutrition and growth of biological material.
R. C. DIMA   +4 more
doaj  

Population genetic structure and phylogeography of sterlet (Acipenser ruthenus, Acipenseridae) in the Ob and Yenisei river basins

open access: yes, 2019
The sterlet (Acipenser ruthenus Linnaeus, 1758) is a relatively small sturgeon widely distributed in Eurasian rivers from the Danube to the Yenisei. During the twentieth century, all wild sterlet populations have declined due to anthropogenic factors ...
Maria A. Pobedintseva (6287102)   +15 more
core   +1 more source

PERMEABILITY OF STERLET SPERM MEMBRANES (ACIPENSER RUTHENUS L., 1758) FOR WATER MOLECULES

open access: yes, 2016
Purpose. The literature analysis of the results cryopreservation of different fish species highlights a variation of many parameters, in particular the sperm survival rate during the freezing and unfreezing process. The survival capability of spermatozoa
І. Hrytsyniak   +4 more
core   +1 more source

Influence of humic substance HS 1500 on tolerance of Sterlet to nitrite

open access: yes, 2014
The aim of the thesis was to assess the effect of humic substance HS 1500 on the tolerance of Sterlet (Acipenser ruthenus) to nitrite. Preparation Huminfeed was used as a source of substance HS 1500.
BULÍČEK, Vojtěch
core  

Induction of gynogenesis in sterlet

open access: yes, 2016
This bachelor thesis deals with the induction of gynogenesis in sturgeons. Theoretical part of thesis describes general basics of the induction of gynogenesis in fish and focuses on the published results of gynogenesis in sturgeon.
HUBÁLEK, Martin
core  

Seasonal migration patterns of wild and stocked sterlet in the Danube

open access: yes, 2022
Störe (Acipenseridae) sind eine alte Fischfamilie, die durch Lebensraumverlust, blockierte Wanderrouten, Überfischung, Wasserverschmutzung und Hybridisierung stark gefährdet ist.
Eichhorn, Heidrun Ulrike
core  

The physiological state of sterlet in the conditions of cage and basin farms

open access: yesVestnik of Astrakhan State Technical University. Series: Fishing industry
The growing conditions of sturgeon fish affect the growth and physiological state, their morphological characteristics. The study of changes in physiological processes under the influence of a complex of factors in the conditions of cage complexes and closed water supply systems will allow for timely adjustment of technology and reduce risks when ...
Anna Aleksandrovna Bahareva   +3 more
openaire   +1 more source

The use of biofilters with different types of fillers in recirculation aquatic system (RAS)

open access: yesFisheries & Aquatic Life
The aim of this study was to evaluate the effectiveness of using highly porous materials as fillers for biofilters in RAS, such as those with a much higher specific surface area than classical polymer floating bioload, and to determine the optimal ...
Sharylo Dmytro   +3 more
doaj   +1 more source

RETRACTED: New supplementary feeds for sterlet in industrial cultivation

open access: yesBIO Web of Conferences
See the retraction notice BIO Web of Conferences 84, 00001 (2024), https://doi.org/10.1051/bioconf ...
Ponomareva Elena   +5 more
openaire   +2 more sources

Micro-level adaptation of individual organs and tissue of sterlet (Acipenser ruthenus Linnaeus, 1758) under heat stress conditions

open access: yesRibogospodarsʹka Nauka Ukraïni
Purpose. To evaluate the variability of the histological parameters of individual organs and tissues of sterlet, to establish the level of effect of heat stress on the physiological status of fish and the degree of their adaptation.
M. Koziy
doaj   +1 more source

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