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Iranian J. of Fisheries Science، جلد ۱۷، شماره ۲، صفحات ۳۱۳-۳۲۶
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عنوان انگلیسی Growth, mortality and exploitation of Buccaneer anchovy (Encrasicholina punctifer Fowler, 1938) from the north Persian Gulf and Oman Sea
چکیده انگلیسی مقاله The population parameters of Encrasicholina punctifer (Buccaneer anchovy) from commercial fishery in the Persian Gulf and Oman Sea coastal waters were studied from October 2014 to September 2015. A total of 13951 length-frequency data 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. The  longevity estimated 2 years. The total length ranged from 2.9 to 10.1 cm, with average 6.5 cm. The probability of capture were calculated in total length as L25=6.05 cm, L50=6.48 cm and L75=6.93 cm.  Four cohorts distinguished annually with mean length 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, 6.15, 2.84 and 3.32 yr-1 respectively. The current rate of exploitation (E) was given as 0.54, 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
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نویسندگان مقاله Ali Salarpouri |
Hormozgan University

Ehsan Kamrani |
Hormozgan University

Farhad Kaymaram |
Iranian Fisheries Science Research Institute

Rasool Mahdavi Najafabadi |
Hormozgan University

نشانی اینترنتی http://jifro.areo.ir/article_115488_895992634d76fea90d752598b75cc6a3.pdf
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