[صفحه اصلی ]   [Archive]  
:: صفحه اصلي :: درباره نشريه :: آخرين شماره :: تمام شماره‌ها :: جستجو :: ثبت نام :: ارسال مقاله :: تماس با ما ::
:: دوره 6، شماره 2 - ( 10-1385 ) ::
جلد 6 شماره 2 صفحات 59-76 برگشت به فهرست نسخه ها
Determination of suitable trap type for the Caspian crayfish, Astacus leptodactylus eichwaldi, in Anzali coastal area, Iran
چکیده:   (830 مشاهده)
The efficiency of different types of traps for catching of the Caspian Sea crayfish, Astacus leptodactylus eichwaldi, was investigated from Mar. 2002 to Feb. 2003. Totally 56 traps of four most commonly used types, "Rectangular trap", "Round trap", "Opera house trap" in two colors of "black" and "blue", and "Fathoms plus" only in black were installed in depths of 35, 45, 55 and 65 meters along two transects in Anzali coastal area. The results revealed no significant differences (p≥0.05) in the average length; weight and sex ratio among the crayfish in different months and applied traps. However, significant differences (p<0.05) in CPUE of different traps in various months of the study year were observed. Mean annual of CPUE in Opera house traps "blue" was the greatest (5.09±0.29) and the lowest was found in "Fathoms plus" traps (0.28±0.05). In general; all blue color traps performed better catch thanthe black ones. 
متن کامل [PDF 2850 kb]   (333 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: Economy in fishery
دریافت: ۱۳۹۶/۹/۱۸ | پذیرش: ۱۳۹۶/۹/۱۸ | انتشار: ۱۳۹۶/۹/۱۸
ارسال نظر درباره این مقاله
نام کاربری یا پست الکترونیک شما:

CAPTCHA


XML   English Abstract   Print


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

Khanipour A, Melnikov V. Determination of suitable trap type for the Caspian crayfish, Astacus leptodactylus eichwaldi, in Anzali coastal area, Iran. IJFS. 2007; 6 (2) :59-76
URL: http://jifro.ir/article-1-3102-fa.html

Determination of suitable trap type for the Caspian crayfish, Astacus leptodactylus eichwaldi, in Anzali coastal area, Iran. مجله علوم شیلاتی ایران. 1385; 6 (2) :59-76

URL: http://jifro.ir/article-1-3102-fa.html



دوره 6، شماره 2 - ( 10-1385 ) برگشت به فهرست نسخه ها
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
Persian site map - English site map - Created in 0.05 seconds with 32 queries by YEKTAWEB 3925