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

Fishing 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 h...

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Autores principales:	Castro, Refugio G, Arreguín-Sánchez, Francisco
Formato:	Online
Idioma:	eng
Publicado:	Universidad de Costa Rica 1997
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/21117

id	RBT21117
record_format	ojs
spelling	RBT211172022-05-25T20:48:09Z Mortality and stock assessment of the brown shrimp Penaeus aztecus (Crustacea: Penaeidae), in tile nortilwest Gulf of Mexico Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico Castro, Refugio G Arreguín-Sánchez, Francisco mortality stock assessment penaeus aztecus Gulf of Mexico Fishing 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 periodo Fishing 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 periodo Universidad de Costa Rica 1997-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/21117 Revista de Biología Tropical; Vol. 45 No. 3 (1997): Volume 45 – Regular number 3 – September 1997; 1075–1083 Revista de Biología Tropical; Vol. 45 Núm. 3 (1997): Volumen 45 – Volumen regular 3 – Setiembre 1997; 1075–1083 Revista Biología Tropical; Vol. 45 N.º 3 (1997): Volume 45 – Regular number 3 – September 1997; 1075–1083 2215-2075 0034-7744 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/21117/21244 Copyright (c) 1997 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution	Universidad de Costa Rica
collection	Revista de Biología Tropical
language	eng
format	Online
author	Castro, Refugio G Arreguín-Sánchez, Francisco
spellingShingle	Castro, Refugio G Arreguín-Sánchez, Francisco Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico
author_facet	Castro, Refugio G Arreguín-Sánchez, Francisco
author_sort	Castro, Refugio G
description	Fishing 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 periodo
title	Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico
title_short	Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico
title_full	Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico
title_fullStr	Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico
title_full_unstemmed	Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico
title_sort	mortality and stock assessment of the brown shrimp, penaeus aztecus (crustacea: penaeidae), in the northwest gulf of mexico
title_alt	Mortality and stock assessment of the brown shrimp Penaeus aztecus (Crustacea: Penaeidae), in tile nortilwest Gulf of Mexico
publisher	Universidad de Costa Rica
publishDate	1997
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/21117
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Mortality and stock assessment of the brown shrimp, Penaeus aztecus (Crustacea: Penaeidae), in the northwest Gulf of Mexico

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