Results 11 to 20 of about 15,868 (316)

Koi herpes virus: do acipenserid restitution programs pose a threat to carp farms in the disease-free zones? [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2009
Background. Sturgeons have long been extinct in Polish inland waters. A substantial effort has recently been put into their restitution, covering the drainage areas of two major Polish rivers, the Oder and the Vistula.
S.M. Bergmann   +7 more
doaj   +3 more sources

Gonadotropins in the Russian Sturgeon: Their Role in Steroid Secretion and the Effect of Hormonal Treatment on Their Secretion. [PDF]

open access: yes, 2016
In the reproduction process of male and female fish, pituitary derived gonadotropins (GTHs) play a key role. To be able to specifically investigate certain functions of Luteinizing (LH) and Follicle stimulating hormone (FSH) in Russian sturgeon ...
Aizen, Joseph   +8 more
core   +12 more sources

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

open access: yesЮг 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

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Modern problems of artificial reproduction of sturgeon in the Volga‐Caspian basin

open access: yesЮг России: экология, развитие, 2022
Aim. The aim of the study is to analyze the current state of artificial reproduction of the Caspian sturgeon and to identify the problems of reducing efficiency and ways to solve them.Discussion.
L. M. Vasilyeva, N. I. Rabazanov
doaj   +1 more source

Conservation Status and Effectiveness of the National and International Policies for the Protection and Conservation of Sturgeons in the Danube River and Black Sea Basin

open access: yesDiversity, 2023
Rivers and their watersheds have been subject to various changes, including biodiversity, caused by anthropogenic activities. The Danube River and Black Sea basin overlap the geographic range of six species of anadromous fish belonging to the family ...
Daniela Strat   +1 more
doaj   +1 more source

Comparison of Metabolic Rates of Young of the Year Beluga (Huso huso), Sterlet (Acipenser ruthenus) and Bester Hybrid Reared in a Recirculating Aquaculture System

open access: yesFishes, 2021
In the present study, oxygen consumption of two sturgeon species, beluga (Huso huso), sterlet (Acipenser ruthenus), and their hybrid reared in a recirculating aquaculture system were compared over body intervals from 54–107 g to determine the ...
Mirela Crețu   +3 more
doaj   +1 more source

Heat Stress Decreases Intestinal Physiological Function and Facilitates the Proliferation of Harmful Intestinal Microbiota in Sturgeons

open access: yesFrontiers in Microbiology, 2022
Heat is a common source of stress in aquatic environments and can alter the physiological and metabolic functions of aquatic animals, especially their intestinal function.
Shiyong Yang   +9 more
doaj   +1 more source

First review of recent records of sturgeons and paddlefishes (Acipenseriformes) in the Danube River basin in Slovenia

open access: yesNatura Sloveniae, 2018
We present recent records of sturgeons and paddlefishes from the rivers in Danube basin in Slovenia after 2000. Strictly, only confirmed and unambiguous records (specimen, picture) were taken into account. The sterlet and the Siberian sturgeon have been
Marijan Govedič, Thomas Friedrich
doaj   +1 more source

STURGEON DISEASES IN AQUACULTURE [PDF]

open access: yesArchives of Veterinary Medicine, 2019
Sturgeon aquaculture is economically important in many countries, for both meat and caviar production. Sturgeon is the common name for 27 species of fish belonging to the family Acipenseridae. Among them, only the sterlet (Acipenser ruthenus) and the Siberian sturgeon (Acipenser baerii) completes the lifecycle in fresh water. In Serbia, in the last few
Radosavljević, Vladimir   +7 more
openaire   +3 more sources

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