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:: دوره 17، شماره 2 - ( 1-1397 ) ::
جلد 17 شماره 2 صفحات 313-326 برگشت به فهرست نسخه ها
Growth, mortality and exploitation of buccaneer anchovy (Encrasicholina punctifer Fowler, 1938) from the north Persian Gulf and Oman Sea
چکیده:   (385 مشاهده)
The population parameters of Encrasicholina punctifer (buccaneer anchovy) from commercial fisheries in the Persian Gulf and Oman Sea coastal waters were studied from October 2014 to September 2015. A total of 13951 length-frequency data were collected monthly by pair-boat purse seine and beach seine methods. The asymptotic length (L) and Von Bertalanffy growth function (K) were 11.5 cm and K=1.4 per year, respectively. The value of to was calculated as -0.14 year. Longevity was estimated as 2 years. The total length ranged from 2.9 to 10.1 cm, with an average of 6.5 cm. The probability of capture was calculated in total length as L25=6.05 cm, L50=6.48 cm and L75=6.93 cm.  Four cohorts were distinguished annually with mean lengths of 4.56, 5.77, 7.21 and 8.50 cm. The length-weight relationship was determined as W= 0.0051 L 3.1114. Total, natural and fishing mortality parameters were estimated as 6.15, 2.84 and 3.32 yr-1 respectively. The current rate of exploitation (E) was 0.54, and the values of exploitation ratio was found reasonable for current fishing effort. From the yield-per-recruit analysis, Emax, was estimated as 0.91. The results indicated that the buccaneer anchovy stock was not overexploited. Since E<Emax, it confirmed the good potential of anchovy stock in the area.
 
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نوع مطالعه: پژوهشي |
دریافت: ۱۳۹۶/۱۲/۲۶ | پذیرش: ۱۳۹۶/۱۲/۲۶ | انتشار: ۱۳۹۶/۱۲/۲۶
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Salarpouri A, Kamrani E, Kaymaram F, Mahdavi Najafabadi R. Growth, mortality and exploitation of buccaneer anchovy (Encrasicholina punctifer Fowler, 1938) from the north Persian Gulf and Oman Sea. IJFS. 2018; 17 (2) :313-326
URL: http://jifro.ir/article-1-3352-fa.html

Growth, mortality and exploitation of buccaneer anchovy (Encrasicholina punctifer Fowler, 1938) from the north Persian Gulf and Oman Sea. مجله علوم شیلاتی ایران. 1397; 17 (2) :313-326

URL: http://jifro.ir/article-1-3352-fa.html



دوره 17، شماره 2 - ( 1-1397 ) برگشت به فهرست نسخه ها
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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