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Taghavi Motlagh, Seyed Amin, Hashemi, Seyed Ahmad, Mirzaei, Mohammad Reza. (1400). Population dynamics and fishery status of Trichiurus lepturus (Largehead hairtail) in the northern waters of the Oman Sea (Sistan and Baluchestan waters, Iran). سامانه مدیریت نشریات علمی, 20(4), 1022-1034. doi: 10.22092/ijfs.2021.124414
Seyed Amin Taghavi Motlagh; Seyed Ahmad Hashemi; Mohammad Reza Mirzaei. "Population dynamics and fishery status of Trichiurus lepturus (Largehead hairtail) in the northern waters of the Oman Sea (Sistan and Baluchestan waters, Iran)". سامانه مدیریت نشریات علمی, 20, 4, 1400, 1022-1034. doi: 10.22092/ijfs.2021.124414
Taghavi Motlagh, Seyed Amin, Hashemi, Seyed Ahmad, Mirzaei, Mohammad Reza. (1400). 'Population dynamics and fishery status of Trichiurus lepturus (Largehead hairtail) in the northern waters of the Oman Sea (Sistan and Baluchestan waters, Iran)', سامانه مدیریت نشریات علمی, 20(4), pp. 1022-1034. doi: 10.22092/ijfs.2021.124414
Taghavi Motlagh, Seyed Amin, Hashemi, Seyed Ahmad, Mirzaei, Mohammad Reza. Population dynamics and fishery status of Trichiurus lepturus (Largehead hairtail) in the northern waters of the Oman Sea (Sistan and Baluchestan waters, Iran). سامانه مدیریت نشریات علمی, 1400; 20(4): 1022-1034. doi: 10.22092/ijfs.2021.124414

Population dynamics and fishery status of Trichiurus lepturus (Largehead hairtail) in the northern waters of the Oman Sea (Sistan and Baluchestan waters, Iran)

Iranian Journal of Fisheries Sciences
دوره 20، شماره 4، مهر 2021، صفحه 1022-1034    اصل مقاله (596.23 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22092/ijfs.2021.124414
نویسندگان
Seyed Amin Taghavi Motlagh1؛ Seyed Ahmad Hashemi2؛ Mohammad Reza Mirzaei* 2
1Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.
2Offshore Fisheries Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Chabahar, Iran.
چکیده
Population dynamics and fishery status of Trichiurus lepturus were estimated by landings data on the northern waters of the sea of Oman (Sistan and Baluchestan Province, Iran). A total of more than 3000 fish samples were weighted and measured during one-year study period (October 2016 to September 2017), the growth indices were obtained as follow: L∞=176 cm, K=0.5 (yr -1), to=-0.2 year, M=0.67(yr -1), F=3.52 (yr -1), Z=4.19 (yr -1), and E=0.85, respectively. Exploitation rate (U), 0.53, annual total stock at the beginning of the year (Bv), 32264 t, Annual average standing stock (B), 4827 t, Maximum Constant Yield (MCY),10260 t, maximum sustainable yield (MSY),15390 t, fishing mortality rate that maximizes equilibrium yield per recruit, Fmax: 0.8 and Exploitation ratio maximum sustainable yield, Emsy: 0.54 were calculated for this species. Results of this study showed exploitation ratio of the Largehead hairtail stock is overfishing and decreasing of exploitation rate proposed.
کلیدواژه‌ها
Largehead hairtail؛ Catch trend؛ Exploitation rate؛ Oman Sea
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تعداد مشاهده مقاله: 467
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