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dc.contributor.authorTaghavi Motlagh, S. A.
dc.contributor.authorHashemi, S. A.
dc.contributor.authorKochanian, P.
dc.coverage.spatialIranen_US
dc.coverage.spatialHormozgan Provinceen_US
dc.coverage.spatialPersian Gulfen_US
dc.coverage.spatialOman Seaen_US
dc.date.accessioned2018-02-13T13:47:18Z
dc.date.available2018-02-13T13:47:18Z
dc.date.issued2010
dc.identifier.issn1562-2916
dc.identifier.urihttp://hdl.handle.net/1834/11231
dc.description.abstractLength composition data (fork length) of kawakawa (Euthynnus affinis ), landed between April 2003 to March 2005 in Coastal Waters of Hormozgan province in Iran ( Persian Gulf and Sea of Oman) , were monthly used to estimate the p opulation parameters and for the assessment of the stock. The growth parameters of von Bertalanffy equation were estimated as L∞: 87.66 cm, K: 0.51 per year and t0: -0.23 year. The estimated value of total mortality, natural mortality and fishing mortality were Z: 2.37, M: 0.65, F: 1.72 per year, respectively. Exploitation ratio (E) and Exploitation rate (U) were estimated as 0.72 and 0.65. The Annual total stock at beginning of year was calculated to be 7924 t and Annual average standing stock (S) was equal to 2994 t. By using analyses knife-edge selection method, biological reference points for kawakawa stock was calculated as, Y'/R (relative yield per recruitment) =0.062, B'/R (relative biomass per recruitment) =0.13, F max (Fishing mortality at maximum sustainable yield) =1.6, E max (Exploitation ratio at maximum sustainable yield) = 0.68 Fopt (Precautionary average target ) =0.33 year-1 and Flimit=0.43 year-1. As the exploitation ratio of kawakawa stock in this study was calculated to be over 0.5, it strongly recommended minimizing the fishing activity in this area.en_US
dc.language.isoenen_US
dc.titlePopulation biology and assessment of Kawakawa (Euthynnus affinis) in Coastal Waters of the Persian Gulf and Sea of Oman (Hormozgan Province)en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue2en_US
dc.bibliographicCitation.titleIranian Journal of Fisheries Scienceen_US
dc.bibliographicCitation.volume9en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.315-326en_US
dc.subject.asfaEuthynnus affinisen_US
dc.subject.asfaPopulation biologyen_US
dc.subject.asfaAssessmenten_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:16Z


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