Results 21 to 30 of about 5,235 (204)

Long-term changes of sterlet (Acipenser ruthenus) population in the Hungarian section of the Danube [PDF]

Opuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis, 2009
Sturgeons had played an important role in the history of Hungarian fisheries, but due to over-fishing, followed by extensive river regulations and deterioration of habitats, there has been a considerable decrease in populations which are now on the verge
Guti, G., Gaebele, T.
doaj   +2 more sources

Identification of metallothionein gene structure in sterlet (Acipenser ruthenus) [PDF]

, 2017
Aquatic organisms present, not only simple sources of accumulated metal, but can interact with metals, altering their toxicity. Due to exposition of biosphere with metals, organisms have developed various defense mechanisms to protect themselves against adverse effects of these ions and their compounds.
Hadian, A., Jamili, Sh., Pourkazemi, M., Mashinchian Moradi, A., Yarmohammadi, M.   +4 more
core   +6 more sources

Changes in Acipenser ruthenus liver structure during domestication: Preliminary data [PDF]

Aquaculture and Fisheries
Wild sturgeon populations have declined dramatically worldwide due to habitat degradation, such as river fragmentation, caused by anthropogenic pressures including legal and illegal overfishing and pollution.
Nataliia Matviienko, Danguole Montvydienė, Nijole Kazlauskienė, Živilė Jurgelėnė, Alexander Didenko, Mykhailo Koziy   +5 more
doaj   +3 more sources

Analysis of metallothionein gene structure in sterlet (Acipenser ruthenus) during copper exposure [PDF]

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017
Aquatic organisms present, not only simple sources of accumulated metal, but can interact with metals, altering their toxicity. Due to exposition of biosphere with metals, organisms have developed various defense mechanisms to protect themselves against ...
A Hadian; Sh Jamili email ; M Pourkazemi; A Mashinchian; M Yarmohammadi
doaj   +1 more source

Immunohistochemical investigation of epithelial, mesenchymal, neuroectodermal, immune and endocrine markers in sterlet (Acipenser ruthenus), shortnose sturgeon (Acipenser brevirostrum) and common carp (Cyprinus carpio). [PDF]

, 2022
Immunohistochemistry (IHC) is a laboratory method widely used to characterize tissue and cell origin, both in human and veterinary medicine. In fish, however, little is known about staining characteristics of most tissue types, and especially for less ...
Lutz, Ilka, Schmidt-Posthaus, Heike, Šálková, Eva, Steinbach, Christoph, Kocour Kroupová, Hana   +4 more
core   +1 more source

Disturbances in the ploidy level in the gynogenetic sterlet Acipenser ruthenus. [PDF]

J Appl Genet, 2017
Artificial mitotic gynogenesis, a chromosome set manipulation, is applied to provide the homozygous progeny with only maternal inheritance. Here, gynogenetic development was induced in the sterlet Acipenser ruthenus L. (Acipenseridae) by activation of the eggs originating from albino females with the UV-irradiated spermatozoa from wild-coloured males ...
Fopp-Bayat D, Ocalewicz K, Kucinski M, Jankun M, Laczynska B.   +4 more
europepmc   +5 more sources

Effects of 11-Ketotestosterone on Development of the Previtellogenic Ovary in the Sterlet, Acipenser ruthenus. [PDF]

Front Endocrinol (Lausanne), 2020
11-ketotestosterone (11-KT) is a non-aromatizable and the most potent androgen in a few teleost. It has been reported that 11-KT in serum had a high concentration and increased sharply before the period of yolk deposition in females of few fishes. The aim of this study was to analyze the role of 11-KT both in vivo and in vitro on ovarian development ...
Wang W, Zhu H, Tian Z, Sun A, Dong Y, Dong T, Hu H.   +6 more
europepmc   +5 more sources

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

Foods, 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, Maria Samu, Marilena Maereanu, Sergiu Emil Georgescu   +3 more
doaj   +1 more source

Infezione da Aeromonas hydrophila in sterleti (Acipenser ruthenus) in un allevamento della Pianura Padana. / Aeromonas hydrophila in sterleti (Acipenser ruthenus) in Padana Plain. [PDF]

, 2000
RIASSUNTO Nel giugno 1998, in una partita di 15.000 sterleti (Acipenser ruthenus) del peso medio di 1 grammo, in un allevamento d’acqua calda sito in Provincia di Modena, si è verificata nell’arco di 30 ore una grave mortalità (30%). All’esame clinico si osservavano: atassia natatoria, assenza di fuga alla stimolazione, dimagramento ed ascite.
QUAGLIO, FRANCESCO, R. BOCUS, M. L. DELGADO, R. GAMBERINI, L. NOBILE, C. MINELLI, A. GALUPPI, R. RESTANI   +7 more
openaire   +2 more sources

Two New Sturgeon Species are Susceptible to Acipenser Iridovirus European (AcIV-E) Infection

Pathogens, 2020
We report the first case of Acipenser iridovirus European (AcIV-E) infection in starry sturgeon (Acipenser stellatus) and in sterlet (A. ruthenus) reared in Northern Italy. During 2018, mortality began in A. stellatus and A.
Davide Mugetti, Paolo Pastorino, Vasco Menconi, Margherita Messina, Loretta Masoero, Luisa Ceresa, Claudio Pedron, Marino Prearo   +7 more
doaj   +1 more source