Results 71 to 80 of about 24,038 (255)

Mycobacterium chelonae associated with tumor-like skin and oral masses in farmed Russian sturgeons (Acipenser gueldenstaedtii) [PDF]

open access: yes, 2014
Peer ...
Antuofermo, Elisabetta   +9 more
core   +4 more sources

Bioaccumulation of heavy metals, Ni, Cd and Pb in muscle, liver and caviar of farmed Acipenser baerii from Khuozestan Province

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017
The presence of heavy metals in our environment has been of great concern because of their toxicity when their concentration is more than the permissible level. These metals enter in the environment by different ways e.g. industrial activities.
A Mohammad Salehi; Velayatzadeh Velayatzadeh; N Karami Rad
doaj  

ارتباط هورمون‌های استروئیدی با برخی خصوصیات بیولوژیکی گناد در تاس‌ماهی سیبری (Acipenser baeri) و ماهی استرلیاد (Acipenser ruthenus) [PDF]

open access: yesمجله بهره‌برداری و پرورش آبزیان, 2015
ارتباط بین هورمون‌های جنسی ( تستوسترون، 17-بتا استرادیول و پروژسترون) با وزن ماهیان ماده و برخی از خصوصیات بیولوژیکی گناد (درصد لقاح، میزان تخم سیال، شاخص گنادوسوماتیک، شاخص قطبیت و قطر تخمک) در 10 ماهی ماده از جمعیت مهاجر استرلیاد (Acipenser ruthenus ...
هاجر آذرین   +3 more
doaj  

Détermination de l'âge et croissance de l'Acipenser sturio L. de la Gironde

open access: yesKnowledge and Management of Aquatic Ecosystems, 1959
La détermination de l'âge de 66 Esturgeons (Acipenser sturio L), péchés en 1958 en Gironde, a été réalisée par l'étude de coupes minces effectuées principalement dans le premier rayon de la nageoire pectorale.
MAGNIN É.
doaj   +1 more source

Development of DNA identification for sturgeon species with the use of real time polymerase chain reaction

open access: yesRibogospodarsʹka Nauka Ukraïni, 2017
Purpose. Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus. Four species may now be extinct.
V. Spyrydonov
doaj   +1 more source

Environmental DNA Reveals the Fish Community Structure Exhibited Instability and Trend of Miniaturization in the Xijiang River Basin of the Guizhou

open access: yesEcology and Evolution, Volume 15, Issue 9, September 2025.
Monitoring of fish communities is of great significance for the management and sustainability of river ecosystems. Environmental DNA (eDNA) metabarcoding technology has been demonstrated to be a highly sensitive biomonitoring tool. Nevertheless, it has seldom been tested in mountainous rivers within the geographically complex Karst region.
Xiuhui Ma   +5 more
wiley   +1 more source

Invasive predatory fish occupies highest trophic position leading to expansion of isotopic niches in a riverine food web

open access: yesEcology, Volume 106, Issue 9, September 2025.
Abstract Invasive species are drivers of ecological change with the potential to reshape the structure and function of terrestrial and aquatic ecosystems. The invasive flathead catfish (Pylodictis olivaris) is an opportunistic predator that has established a rapidly growing population in the Susquehanna River, Pennsylvania, USA, since they were first ...
Olivia C. Hodgson   +5 more
wiley   +1 more source

Tracking Aquatic Biodiversity With Environmental DNA: A Study in Quebec's Mining Region

open access: yesEnvironmental DNA, Volume 7, Issue 5, September–October 2025.
This study assesses the effectiveness of environmental DNA (eDNA) for monitoring fish species in mining‐impacted waters of Quebec's James Bay region. eDNA analyses detected key species, including culturally significant ones, and revealed potential biodiversity impacts, such as reduced detectability of lake sturgeon in areas with habitat disturbance and
Fidji Sandré   +4 more
wiley   +1 more source

Detection of white sturgeon iridovirus (WSIV) in wild sturgeons (Actinopterygii: Acipenseriformes: Acipenseridae) in Poland

open access: yesJournal of Veterinary Research, 2020
White sturgeon iridovirus (WSIV) disease is caused by a virus of the eponymous family and is mostly triggered by stressful environmental conditions, i.e. high rearing density, excessive handling, or temporary loss of water.
Hofsoe-Oppermann Paulina   +3 more
doaj   +1 more source

Acipenser medirostris Ayres 1854

open access: yes, 2021
Published as part of Love, Milton S., Bizzarro, Joseph J., Cornthwaite, Maria, Frable, Benjamin W. & Maslenikov, Katherine P., 2021, Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico, pp.
Love, Milton S.   +4 more
openaire   +1 more source

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