M. Taghi Azhir

[ 1 ] - Investigation of otolith’s characteristics in Rachycentron canadum in the Persian Gulf and Oman Sea

This study aimed to investigate otolith in Rachycentron canadum in the Persian Gulf and Oman Sea. Sampling lasted from March 2014 to April 2015 in Khouzestan to Sistan and Baloochestan waters. During this period 30 specimens of R. canadum were caught and studied. Trawling time was 2-2½ hours and trawling depth was considered as 10-100 m daily. All the fish were identified and their otolith was ...

[ 2 ] - بررسی برخی از خصوصیات زیستی ماهی سنگسر کاکان (Pomadasys kaakan) به منظور بهینه سازی فصل صید در دریای عمان

در این بررسی برخی از خصوصیات زیستی ماهی سنگسر کاکان (Pomadasys kaakan) در دریای عمان محدوده سواحل سیستان و بلوچستان از شهریور 1382 تا مهر ماه 1383 مورد بررسی قرار گرفت. در این تحقیق 756 قطعه ماهی کالبد شکافی شده که از این تعداد 318 قطعه ماده بود. نمونه برداری به صورت روزانه و از صید تجاری توسط شناور قایق انجام پذیرفت. براساس فراوانی مراحل جنسی پیشرفته یک دوره تخم ریزی طولانی در طول سال (به استث...

[ 3 ] - Investigation of otolith’s characteristics in Rachycentron canadum in the Persian Gulf and Oman Sea

This study aimed to investigate otolith in Rachycentron canadum in the Persian Gulf and Oman Sea. Sampling lasted from March 2014 to April 2015 in Khouzestan to Sistan and Baloochestan waters. During this period 30 specimens of R. canadum were caught and studied. Trawling time was 2-2½ hours and trawling depth was considered as 10-100 m daily. All the fish were identified and their otoli...

[ 4 ] - Determination Growth Parameters in Different Popullation of Specific Pathogen Free (SPF)Rainbow TroutBrood Stocksnc(orhynchus mykiss)

This study aimed to compare growth indices and production of rainbow trout breeders (Oncorhynchus mykiss) without any specific pathogens in various populations at the Fishery Research Center of Coldwater-Tonekabon. The project's implementation included collecting Pre-breeders were done in selected rainbow trout breeding centers (based on the approval of the Iranian Fisheries Organization and th...

[ 5 ] - Determination of optimum concentration of pituitary gland extract and LHRHa2 hormones in 3-stages injection based on reproduction indices of Arabibarbus grypus

The aim of the project is to assay the effectiveness of different values ofLHRH-a2 combined with carp pituitary extract in 3-stages way on reproduction indices of Arabibarbus grypus that belong to Cyprinidae family and is a native fish in Khuzestan province. Fifty individuals of fish in 4 treatments were studied. Control treatment were injected by 4mg/kg pituitary extracts, first treated: 4mg/k...

[ 6 ] - پایش ذخایر کفزیان تجاری خلیج فارس و دریای عمان به روش مساحت جاروب شده

به منظور پایش ذخایر کفزیان آبهای خلیج فارس و دریای عمان، محاسبه میزان صید بر واحد سطح (CPUA) و توده زنده آن ها به روش مساحت جاروب شده (Swept Area)، طی چهار سال نمونه برداری (87-1383) گشت های تحقیقاتی با استفاده از کشتی تحقیقاتی فردوس یک مجهز به تور ترال کفی از غرب آب های استان خوزستان تا منطقه گواتر در آب های استان سیستان ...