Mortality and stock assessment of the brown shrimp Penaeus aztecus (Crustacea: Penaeidae), in tile nortilwest Gulf of Mexico

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dc.creatorCastro, Refugio G.
dc.creatorArreguín Sánchez, Francisco
dc.date2015-10-09
dc.date.accessioned2016-05-03T15:28:46Z
dc.date.available2016-05-03T15:28:46Z
dc.descriptionFishing mortality of the brown shrimp (Penaeus aztecus) was estimated off Tamaulipas (northwest Gulf of Mexico). Monthly age structure and fishing effort data for the 1974-1980 period, and cohort analysis by the virtual population analysis (VPA) technique were used. Catchability estimates indieate higher values for the first matnrity age (six months old), fishing mortality inereases with age, with an asymptotic tendeney after 8-9 rnoths oId, F=O.5 (l/year). Variance of F also inereases with age. Population size has strong interannual variations because of recruitment, though the seasonal recruitment pattern was similar during the periodo The rnonthly cohort tendency suggests a stable situation for the stock during this periodoen-US
dc.descriptionFishing mortality of the brown shrimp (Penaeus aztecus) was estimated off Tamaulipas (northwest Gulf of Mexico). Monthly age structure and fishing effort data for the 1974-1980 period, and cohort analysis by the virtual population analysis (VPA) technique were used. Catchability estimates indieate higher values for the first matnrity age (six months old), fishing mortality inereases with age, with an asymptotic tendeney after 8-9 rnoths oId, F=O.5 (l/year). Variance of F also inereases with age. Population size has strong interannual variations because of recruitment, though the seasonal recruitment pattern was similar during the periodo The rnonthly cohort tendency suggests a stable situation for the stock during this periodoes-ES
dc.formatapplication/pdf
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/21117
dc.identifier.urihttps://hdl.handle.net/10669/26495
dc.languageeng
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsCopyright (c) 2015 International Journal of Tropical Biology and Conservationen-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 45 (3) Setember 1997; 1075-1083en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 45 (3) Setember 1997; 1075-1083es-ES
dc.sourceRevista Biología Tropical; Vol. 45 (3) Setember 1997; 1075-1083pt-PT
dc.source2215-2075
dc.source0034-7744
dc.subjectmortalityen-US
dc.subjectstock assessmenten-US
dc.subjectpenaeus aztecusen-US
dc.subjectGulf of Mexicoen-US
dc.titleMortality and stock assessment of the brown shrimp Penaeus aztecus (Crustacea: Penaeidae), in tile nortilwest Gulf of Mexicoen-US
dc.typeartículo original

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Revista de Biología Tropical