[صفحه اصلی ]   [Archive]  
:: صفحه اصلي :: درباره نشريه :: آخرين شماره :: تمام شماره‌ها :: جستجو :: ثبت نام :: ارسال مقاله :: تماس با ما ::
:: دوره 16، شماره 4 - ( 7-1396 ) ::
جلد 16 شماره 4 صفحات 1164-1177 برگشت به فهرست نسخه ها
Age and growth of Alburnus mossulensis (Cyprinidae) in Bibi-Sayyedan River of Isfahan Province
چکیده:   (308 مشاهده)
Population structure and growth of Mossul bleak, Alburnus mossulensis, a native species of cyprinids in Bibi-Sayyedan River of Semirom, Isfahan, were investigated by monthly sampling during December 2010 to December 2011. For this purpose, 543 speciments (353 females, 159 males and 31 immature) were caught using seine net (5 mm mesh size) and a cast net. Age groups of males and females were 0+ to 5+. The most frequent age group was 2+ in both sexes. The sex ratio was 1M:2.2F (p<0.01). Males outnumbered the females in younger age classes and females outnumbered the males in older age groups. The highest condition factor was observed in April for males and in March for females. The mean condition factor (CF) was not significantly different between the sexes among all fish during different months (p>0.05). The largest female was 16.80 cm in total length and 49.12 g in weight, while the largest male was 14.10 cm in total length and 28.19 g in body weight. The length-weight relationship was calculated as W = 0.0169L3.0355 (r2=0.95) for males, W=0.0061L 3.1751 (r2=0.98) for females and W=0.0066L3.139 (r2=0.99) for all fish (males, females and immature). Regression coefficient (b) based on Pauly test, was significantly different from 3 in females, but not in males (p<0.05), indicating an isometric growth pattern in males and a positive allometric growth pattern in females and all fish.
متن کامل [PDF 459 kb]   (162 دریافت)    

دریافت: ۱۳۹۶/۷/۱۵ | پذیرش: ۱۳۹۶/۷/۱۵ | انتشار: ۱۳۹۶/۷/۱۵
ارسال نظر درباره این مقاله
نام کاربری یا پست الکترونیک شما:

کد امنیتی را در کادر بنویسید >



XML   English Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Keivany Y, Ghorbani M, Paykan Heyrati F. Age and growth of Alburnus mossulensis (Cyprinidae) in Bibi-Sayyedan River of Isfahan Province . IJFS. 2017; 16 (4) :1164-1177
URL: http://jifro.ir/article-1-2955-fa.html
Age and growth of Alburnus mossulensis (Cyprinidae) in Bibi-Sayyedan River of Isfahan Province . مجله علوم شیلاتی ایران. 1396; 16 (4) :1164-1177

URL: http://jifro.ir/article-1-2955-fa.html

دوره 16، شماره 4 - ( 7-1396 ) برگشت به فهرست نسخه ها
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
Persian site map - English site map - Created in 0.053 seconds with 795 queries by yektaweb 3531