%0 Journal Article %T Estimation of Otolithes ruber stock with virtual population analysis in the Northwest area of the Persian Gulf %J Iranian Journal of Fisheries Sciences %I Agricultural Research,Education and Extension Organization %Z 1562-2916 %A Eskandari, Gholamreza %A Koochaknejad, Emad %A Hashemi, Ahmad %D 2019 %\ 04/01/2019 %V 18 %N 2 %P 296-306 %! Estimation of Otolithes ruber stock with virtual population analysis in the Northwest area of the Persian Gulf %K Virtual Population Analysis %K Stock Number and Biomass %K Catch Number and Weight %K Otolithes ruber %R 10.22092/ijfs.2018.117809 %X Stock assessment of Otolithes ruber was carried out using Virtual Population Analysis (VPA) method in the coastal waters of Northwest Persian Gulf. Catch and length frequency data during 2002-2012 were converted to age frequency. The maximum of stock number and biomass were observed in age group 1 and 2 respectively. The minimum of stock number and biomass were observed age group 6. The maximum and minimum of catch number were in age group 2 and 6 respectively. The maximum and minimum of weight were in age group 3 and 1 respectively. The maximum and minimum of instantaneous fishing mortality were in age group 4 and 1 respectively. The maximum of fishing mortality was estimated in 2010-2011 and minimum was in 2002-2003 and 2008-2009. During 2011-2012 the stock number and biomass were estimated 29558 (*103) specimen, 7302 ton and the catch number and weight were calculated 7562 (*103), 2364 ton and fishing mortality was obtained 0.47 per year. The calculated parameters showed over-exploitation in age-groups 3 and 4. To preserve stocks and to guarantee sustainable exploitation, the prevention of increasing fishing efforts and the control of fishing activities are crucial. %U https://jifro.areeo.ac.ir/article_117809_78ba35fec51c39b44ef329d2a34a096a.pdf