Age, growth and length at first maturity of Otolithes ruber in the Northwestern part of the Persian Gulf, based on age estimation using otolith
عنوان مقاله: Age, growth and length at first maturity of Otolithes ruber in the Northwestern part of the Persian Gulf, based on age estimation using otolith
شناسه ملی مقاله: JR_JIFRO-11-1_002
منتشر شده در در سال 1390
شناسه ملی مقاله: JR_JIFRO-11-1_002
منتشر شده در در سال 1390
مشخصات نویسندگان مقاله:
Gh. Eskandari
A. Savari
P. Kochanian
A. Taghavi Motlagh
خلاصه مقاله:
Gh. Eskandari
A. Savari
P. Kochanian
A. Taghavi Motlagh
Estimates of age, growth parameters, length-weight relationship and length and age at first maturity of the otolithes ruber are required for fishery management. We used counting annuli on the section of sagittal otoliths to age O.ruber from the Northwest Persian Gulf in south of Iran. Estimated ages ranged from ۰ to ۶ years, and maximum frequency of fishes was observed in age-group ۱. The values of growth parameters L∞, k and to were calculated by von Bertalanffy model and the results were ۶۷.۵۷ (cm), ۰.۲۷ (year-۱) and -۰.۴۳ respectively. Parameters b and an in length-weight relationship were calculated ۳.۱۹ and ۰.۰۰۵ respectively. Length and age at first maturity were estimated ۲۸ cm and ۱.۵۵ year.
کلمات کلیدی: Otolithes ruber, Age composition, Growth, Length at first maturity, Persian Gulf
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1411528/