Results 41 to 50 of about 3,371 (117)

Microsatellite Variation in Russian Sturgeon (Acipenser gueldenstaedtii) from Aquaculture

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Most sturgeon species today are on the brink of extinction because of anthropogenic influences, but in the same time, the economical interest regarding these species was constantly increasing, especially because the great value of the roe.
Sergiu Emil Georgescu   +5 more
doaj  

Parasitic worms and their histopathological effects in four sturgeon species from the southwest shores of the Caspian Sea

open access: yesInternational Journal of Aquatic Biology, 2016
This study conducted to provide the status of parasite communities of four sturgeon species viz. Acipenser stellatus, A. gueldenstaedtii, A. nudiventris, and Huso huso in the southwest of the Caspian Sea and their histopathological effects on the ...
Mohammad Reza Noei   +2 more
doaj  

An investigation on Sturgeon Fish migration in Sepid Rud River

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1998
This study was conducted to assess migration potential of Sepid Rud River which was naturally used for migration in past. The investigation included an area from the mouth up to 30 km covering part of river's potamon region. During 35 days, starting from
M. Ramin
doaj  

Evaluation of fish‑breeding parameters of yearlings of the F1 hybrid Acipenser gueldenstaedtii Brandt, 1833 × Acipenser baerii Brandt, 1869 with short‑term introduction of probiotics of different action spectrum into the diet

open access: yesSiberian Journal of Life Sciences and Agriculture
Background.  Under the conditions of the global shortage of accessible animal proteins, the task to develop the effective strategy aimed at the minimizing negative consequences of the production intensification and optimization of economic indicators in ...
Dmitry V. Rudoy   +6 more
doaj   +1 more source

Histological Study on the Gonads of Reared Juvenile Sturgeon

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1998
Histological studies are of the most adequate way to determine the physiological condition of fish organs. The present research was carried out in order to conduct a qualitative evaluation of the growth and development of the reproductive system of three
M. Bahmani; R. Kazemi
doaj  

Impact of Submerged Spur Dike on Migrating Fish Habitat in Bending Branched Shoal

open access: yes工程科学与技术, 2020
There are many bending branched shoals, which are the main obstacles of navigation, in the upper reaches of the Yangtze River, and the reaches are also the main breeding areas of endangering fish Acipenser sinensis.
Xinhua ZHANG   +3 more
doaj  

Monitoring of hydrochemical parameters of the recirculating aquasystem in the early stages of ontogeny of Acipenser Ruthenus

open access: yesНауковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Гжицького. Серія: Сільськогосподарські науки
The technological process of reproduction and rearing of Acipenser Ruthenus, juveniles and older age groups, in industrial fish farms is carried out in recirculating aquaculture systems with constant monitoring of the hydrochemical regime of the aquatic ...
N. E. Hrynevych, Yu. V. Osadcha
doaj   +1 more source

SUMMER AND WINTER FEEDING BEHAVIOR IN ACIPENSER PERSICUS AND ACIPENSER STELLATUS IN THE SOUTH CASPIAN SEA

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008
Feeding behavior in Acipenser persicus and Acipenser stellatus in summer and winter was studied from 2004 to 2006 simultaneously with the marine survey for sturgeon stock assessment.
K. Hadadi moghadam; M. Tavakoli; Z. Pazhand; R. Rofchahi; F. Chobian; H. Parandavar Abstract
doaj  

Genetic difference and resemblance between Acipenser persicus and Acipenser gueldenstaedtii by means of RAPD Technique

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2005
We studied genetic difference and resemblance between Acipenser persicus and Acipenser gueldenstaedtii using Random Amplified Polymorphic DNA (RAPD) technique. The DNA of tail fin tissue of three A. persicus and A.
A. Gharaei1; M. porkazemi2; S. Rezvani3; B. Amiri majazi4
doaj  

Phylogenic and systematic study on sturgeons

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1998
Sturgeons are anadromous and potamodromous species inhabiting the northern hemisphere, which have been existing for almost 100 million years. These species have been caught and processed by human for the past 2500 years.
M. Bahmani
doaj  

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