نتایج جستجو برای: persian sturgeon eggs

تعداد نتایج: 43304  

Journal: :دامپزشکی 0
هانیه رستم زاد دانشجوی کارشناسی ارشد شیلات، دانشگاه علوم کشاورزی و منابع طبیعی گرگان بهاره شعبان پور عضو هیأت علمی گروه شیلات دانشگاه علوم کشاورزی و منابع طبیعی گرگان علی شعبانی اعضای هیأت علمی گروه شیلات دانشگاه علوم کشاورزی و منابع طبیعی گرگان مهدی کاشانی نژاد استادیار گروه صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان

persian sturgeon (acipenser persicus) is one of the most important fish in caspian sea and demand for its fillets is considerable, study to improve the packaging and protect their quality during storage is necessary. in this study persian sturgeon fillets were packed under 30% vacuum then freezed and effect of this packaging method on decreasing and delaying lipid rancidity was studied by measu...

Journal: :The Journal of heredity 2004
G Tranah D E Campton B May

To determine the genetic origin of individual sturgeon that are morphologically intermediate to pallid (Scaphirhynchus albus) and shovelnose (Scaphirhynchus platorhynchus) sturgeon, we combined previously published mitochondrial DNA (mtDNA) and microsatellite data with additional microsatellite data. Two sympatric populations of pallid and shovelnose sturgeon from the upper Missouri River and a...

A. Sharr B. Mojazi Amiri H. Hossienzadeh K. Amini, S. A. Mirhashemi Rostami S. S. Siraj

 The Persian sturgeon (Acipenser persicus) is considered as an endemic sturgeon of the south part of the Caspian Sea and provides the highest Iranian caviar production. Due to overfishing, degradation of the rivers conditions of the natural reproductive habitats, the fish stocks is decreasing. The immature breeders do not response to hormonal therapy at the sturgeon hatcheries as most having PI...

A. Er İ. Z. Kurtoğlu P. Kangel Ş. Kayiş,

Farming sturgeons is an economically important practice in a number of Asian and European countries. However, since it is not widely implementedin Turkey, fertilized eggs necessary for research and industrial activities are imported from Germany. Due to the interest of several fish farms in culturing sturgeon in Turkey and the lack of relevant data, this study investigated bacteria related heal...

2013
A. Charmi P. Parto M. Bahmani R. Kazemi

Sturgeons are ancient and commercial fishes which posses’ primitive characteristics and due to their great inflections are able to live in both freshwater and marine environments. So their kidney has great ability for adaptation process. In order to find the structure and distribution of kidney nephrons in juvenile Huso huso and Acipensr persicus, sampling of head, body and caudal parts of kidn...

2017
Matthew T. Balazik Daniel J. Farrae Tanya L. Darden Greg C. Garman

Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus, Acipenseridae) populations are currently at severely depleted levels due to historic overfishing, habitat loss, and pollution. The importance of biologically correct stock structure for effective conservation and management efforts is well known. Recent improvements in our understanding of Atlantic sturgeon migrations, movement, and the occurr...

2011
David D. Huff Steven T. Lindley Polly S. Rankin Ethan A. Mora

The green sturgeon (Acipenser medirostris) is a highly migratory, oceanic, anadromous species with a complex life history that makes it vulnerable to species-wide threats in both freshwater and at sea. Green sturgeon population declines have preceded legal protection and curtailment of activities in marine environments deemed to increase its extinction risk. Yet, its marine habitat is poorly un...

2014
Christine E. Verhille Jamilynn B. Poletto Dennis E. Cocherell Bethany DeCourten Sarah Baird Joseph J. Cech Nann A. Fangue

Little is known of the swimming capacities of larval sturgeons, despite global population declines in many species due in part to fragmentation of their spawning and rearing habitats by man-made water-diversion structures. Larval green (Acipenser medirostris) and white sturgeon (Acipenser transmontanus) inhabit the highly altered Sacramento-San Joaquin watershed, making them logical species to ...

Journal: :Environmental Biology of Fishes 2023

Abstract The shovelnose sturgeon ( Scaphirhynchus platorynchus ) and endangered pallid S. albus deposit demersal adhesive eggs in swift currents, near or over coarse substrate. Hydrographic surveys have demonstrated the dynamic nature of spawning habitats that substrates may episodically be buried (partially completely) by fine sediments. To evaluate embryo survival both species various substra...

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