نوری, احمد
[ 1 ] - تاثیر غلظت‌های زیرکشنده شیرابه فرفیون ترکمنی (Euphorbia turcomanica) بر برخی شاخص های بیوشیمیایی کبد ماهی آفانیوس گورخری (Aphanius dispar)
در این مطالعه، بررسی تاثیر سمیت زیر کشنده شیرابه گیاه فرفیون ترکمنی(Euphorbia turcomanica) در غلظت های صفر، 0055/0، 011/0 و 022/0 گرم بر لیتر بر روی برخی تغییرات شاخص های بیوشیمیایی کبد ماهی آفانیوس گورخری (Aphanius dispar) پس از گذشت 15 و 30 روز و در شرایط آزمایشگاهی مورد مطالعه قرار گرفت. ابتدا مقدار میانگین (± خطای استاندارد) 50LC شیرابه گیاه فرفیون ترکمنی در زمان‌های 24، 48، 72 و 96 ساعت به...
[ 2 ] - اثر افزایش تراکم نگه داری بر عملکرد رشد، غلظت هورمون کورتیزول و بیان ژن پروتئین شوک حرارتی در ماهی قزل آلای رنگین کمان (Oncorhynchus mykiss)
تراکم نگه داری به عنوان یک عامل استرس زای مزمن در آبزیپروری تلقی می شود. هدف از این مطالعه، مقایسه عملکرد رشد، تغییرات هورمون کورتیزول و بیان امآرانای ژن پروتئین شوک حرارتی (70 HSP) ماهی قزل آلای رنگین کمان (Onchorhynchus mykiss) در دو تراکم نگه داری متداول کشور در س...
[ 3 ] - Endoscopy as a new method for sex determination in Siberian sturgeon (Acipenser baerii)
Determination of sex and gonadal development of Siberian sturgeon (Acipenser baerii) by using endoscopy as a new and less aggressive method for sturgeon conservation is the aim of this study. the gonadal development status of 23 Siberian sturgeons (7 years) by using endoscopy and histology for confirmation investigated in Shahid Dr. Beheshti Sturgeon Fish Propagation and Rearing Complex, locate...
[ 4 ] - Seasonal changes in gonadosomatic index, hepatosomatic index and condition factor of the female Geno tooth-carp, Aphanius ginaonis
A dearth of basic biological information, especially about reproductive traits for the Geno tooth-carp, Aphanius ginaonis, currently hinders the proper management efforts for this valuable species. This fish is an endemic cyprinodont that exclusively lives in the Geno hot spring. In this study, reproductive biology of female A. ginaonis was studied, based upon the annual changes in gonadosomati...
[ 5 ] - Comparative study of some blood respiratory factors between mudskipper, Scartelaos tenuis and mullet, Liza klunzingeri in the Persian Gulf, Hormozgan province
Fish depend on water to supply oxygen demand. Blood plays an important role in oxygen transport. Differences in oxygen uptake, resulting in special blood respiratory factors are arisen from diverse living styles. In this study, blood respiratory factors compared between mudskipper, Scartelaos tenuis, and Liza klunzingeri. Samples were taken from Bandar abbas shore line. Blood sampling was perfo...
[ 6 ] - A study of changes in plasma testosterone in Abudefdus vaigiensis at the northern coast of Qeshm Island, Persian Gulf
Although sex steroids play an important role in many physiological processes including reproduction in vertebrates, there is a few information about the effects of these hormones in coral-reef fish reproduction. Determination of fluctuation of these hormones would be very useful in reproductive studies. In this study, 120 specimens Abudefduf vaigiensis including 47 females and 34 males were cap...
[ 7 ] - Comparison of growth parameters, cortisol and muscle gene expression of rainbow trout reared in an open and water reuse system
Fish farming in recirculating aquaculture systems (RAS) has been expanding in the recent years, but the effects of water reuse are not well known. The aim of the present study was to compare the growth parameters, stress response and muscle stress- and growth- related gene expression of rainbow trout (Oncorhynchus mykiss) in open system (OS) versus water reuse system (WRS). For this purpose, yo...
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