Results 51 to 60 of about 22,804 (240)
Published as part of Lambe L. M., 1902, New genera and species from the Belly River Series (mid-Cretaceous), pp. 25-81 in Geological Survey of Canada Contributions to Canadian Palaeontology 3 on page 29, DOI: 10.5281/zenodo ...
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THE ABUNDANCE AND SPECIES COMPOSITION OF STURGEON IN THE NORTHERN CASPIAN SEA
This study was carried out in the northern Caspian Sea on Gidrobiolog vessel in summer 2006 to assess the abundance and species composition of sturgeons. We used bottom trawl (9m) and gillnets with mesh size 60, 110, 250 and 29Omm.
D. Kor; M. Fatemi; F. Keymaram
doaj
Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season [PDF]
The aim of this work was to assess the quality of pejerrey eggs and larvae throughout its spawning season. Fertilized eggs were taken on September, October, November, and December from a captive broodstock.
Chalde, Tomás+2 more
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REFERENCED TECHNOLOGICAL PERFORMANCES FOR STURGEON FINGERLING BREEDING IN INTENSIVE SYSTEM
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
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Studying the manner of sturgeon fishes migration to Gorganrud and Tajan rivers
One year study was carried out to understand the sturgeon fish’s migration to Gorganrud & Tajan Rivers from September 1993. Two different catching stations were selected in each river with gillnetting method.
F. Laloei
doaj
ارتباط هورمونهای استروئیدی با برخی خصوصیات بیولوژیکی گناد در تاسماهی سیبری (Acipenser baeri) و ماهی استرلیاد (Acipenser ruthenus) [PDF]
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
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
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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
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
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Intestinal microbiota is crucial for the regulation of the immune system and feeding habits in aquatic animals, as well as preventing the invasion of pathogenic microorganisms. However, disorders of the intestinal microbiota can lead to numerous, possibly life-threatening diseases.
Kaiyu Wang+12 more
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