Results 81 to 90 of about 27,770 (311)

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  

REFERENCED TECHNOLOGICAL PERFORMANCES FOR STURGEON FINGERLING BREEDING IN INTENSIVE SYSTEM

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Work objective is to present an oversight regarding the modality to rearing the descendents of anadromous sturgeon species, Acipenser stellatus, Acipenser gueldenstaedti and Huso huso, obtained trough artificial reproduction, indicating successively, the
MARILENA TALPEŞ   +7 more
doaj  

RAD‐tag and mitochondrial DNA sequencing reveal the genetic structure of a widespread and regionally imperiled freshwater mussel, Obovaria olivaria (Bivalvia: Unionidae)

open access: yesEcology and Evolution, 2022
Obovaria olivaria is a species of freshwater mussel native to the Mississippi River and Laurentian Great Lakes‐St. Lawrence River drainages of North America.
Jamie R. Bucholz   +6 more
doaj   +1 more source

Revision of nucleotide substitution rate in mtDNA control region of white sturgeon Acipenser transmontanus (Acipenseridae) [PDF]

open access: yesarXiv, 2017
The raw data from study of variation of D-loop mtDNA of white sturgeon Acipenser transmontanus (Mol. Biol. Evol. 1993. 10: 326-341) was re-analyzed. Re-calculated nucleotide substitution rate ({\mu}) was 0.782-0.939 x 10-7 substitutions/site/year/lineage, which was 1.4 times less than the estimate given in above-mentioned publication.
arxiv  

On the Line and Online: Higher Non‐Response to Web‐Based Surveys Over‐Represents Avid Recreational Fishers Compared With Telephone Surveys

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Recreational fishing surveys have an important role in providing data to inform fisheries management. The selection of a contact method is an important and often challenging consideration that influences the potential for non‐sampling errors that can result in unrepresentative data and biased estimates.
Karina L. Ryan   +4 more
wiley   +1 more source

Comparison of oxidant and antioxidant status of seminal plasma and spermatozoa of several fish species

open access: yesCzech Journal of Animal Science, 2013
Oxidant and antioxidant activity in seminal plasma was compared with that in spermatozoa of teleost (common carp Cyprinus carpio and brook trout Salvelinus fontinalis) and chondrostean (Russian sturgeon Acipenser gueldenstaedtii, Siberian sturgeon ...
A. Shaliutina-Kolešová   +3 more
doaj   +1 more source

Outbreak of Mortality Associated with Acipenser Iridovirus European (AcIV-E) Detection in Siberian Sturgeon (Acipenser baerii) Farmed in Sweden

open access: yesFishes, 2018
Infectious disease is a major challenge in aquaculture and poses a constraint for the development of farming of new species. In 2017, Siberian sturgeon (Acipenser baerii) juveniles were imported from Italy to a Swedish farm.
C. Axén, N. Vendramin, A. Toffan
semanticscholar   +1 more source

Acipenser transmontanus Richardson 1837

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   +2 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  

Acipenser baerii Brandt 1869

open access: yes, 2023
Acipenser baerii Brandt, 1869 Remarks. This species was reported by Mousavi-Sabet et al.(2019) from Tigris River. 34°33′0.39′′N, 045°46′20.02′′E) and from the Ghuretu Stream where it enters the reservoir (34°32′42.11′′N, 45°47′33.59′′E) (both about 1.5-3.5 km away from the cage-culture farm within the reservoir) in the Tigris-Euphrates basin ...
Çiçek, Erdoğan   +6 more
openaire   +2 more sources

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