Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela

Dana Swimming crab growth Callinectes danae (Decapoda: Portunidae) from Margarita Island, Venezuela. Callinectes danae is a common species captured with crab traps in nearby areas of coastal lagoons in Margarita Island. Although its considerable economic importance as a fishery resource, few studies...

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Autores principales:	Castillo, Jesylén, Eslava, Nora, Walter González, Leo
Formato:	Online
Idioma:	spa
Publicado:	Universidad de Costa Rica 2011
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/3417

id	RBT3417
record_format	ojs
spelling	RBT34172022-06-06T18:59:48Z Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela Castillo, Jesylén Eslava, Nora Walter González, Leo growth dana swimcrab Callinectes danae Portunidae Margarita Island Venezuela crecimiento cangrejo Isla Margarita Dana Swimming crab growth Callinectes danae (Decapoda: Portunidae) from Margarita Island, Venezuela. Callinectes danae is a common species captured with crab traps in nearby areas of coastal lagoons in Margarita Island. Although its considerable economic importance as a fishery resource, few studies have been done on population dynamics and its fishery potential in local coastal environments to support decision making in fishery administration. We present growth pattern details of Callinectes danae to better estimate its population size and exploitation feasibility. For this, we analyzed a total of 3 623 specimens that were monthly captured in crab pots by artisanal fishermen in Las Marites lagoon, from October 2007 to September 2008. The length-weight ratio was determined, and growth parameters estimated from both length and weight curves of the von Bertalanffy model. The general sex ratio showed no significant difference between males and females (?2=0.04, p > 0.05). However, values of slopes b between males and females were significantly different (ts=2.75, p < 0.05), as well as intercepts a (ts=2.44, p < 0.05). Thus, the length-weight ratio was determined separately: W=7.48e-5L2.98 for males and W=1.21e-4L2.87 for females, indicating a negative allometric growth in both sexes. Growth parameters were established as: L8=134.80mm, W8=166.04g and k=0.86/yr for males; L8=122.35mm, W8=118.45g and k=0.63/yr for females. Lifespan was estimated at 3.05 years for males and 4.24 years for females. We concluded that Callinectes danae is a species with short lifespan and moderately rapid growth. The coefficient of variation values (CV), of the phi-prime growth performance index (Ø’), showed a different growth pattern compared to those obtained in other regions. We propose that a management strategy will be the periodical review of the minimum capture size for fishing area, after the great variability found in growth parameters. Universidad de Costa Rica 2011-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/3417 10.15517/rbt.v59i4.3417 Revista de Biología Tropical; Vol. 59 No. 4 (2011): Volume 59 – Regular number 4 – December 2011; 1525–1535 Revista de Biología Tropical; Vol. 59 Núm. 4 (2011): Volumen 59 – Número regular 4 – Diciembre 2011; 1525–1535 Revista Biología Tropical; Vol. 59 N.º 4 (2011): Volume 59 – Regular number 4 – December 2011; 1525–1535 2215-2075 0034-7744 10.15517/rbt.v59i4 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/3417/3321 Copyright (c) 2011 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution	Universidad de Costa Rica
collection	Revista de Biología Tropical
language	spa
format	Online
author	Castillo, Jesylén Eslava, Nora Walter González, Leo
spellingShingle	Castillo, Jesylén Eslava, Nora Walter González, Leo Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela
author_facet	Castillo, Jesylén Eslava, Nora Walter González, Leo
author_sort	Castillo, Jesylén
description	Dana Swimming crab growth Callinectes danae (Decapoda: Portunidae) from Margarita Island, Venezuela. Callinectes danae is a common species captured with crab traps in nearby areas of coastal lagoons in Margarita Island. Although its considerable economic importance as a fishery resource, few studies have been done on population dynamics and its fishery potential in local coastal environments to support decision making in fishery administration. We present growth pattern details of Callinectes danae to better estimate its population size and exploitation feasibility. For this, we analyzed a total of 3 623 specimens that were monthly captured in crab pots by artisanal fishermen in Las Marites lagoon, from October 2007 to September 2008. The length-weight ratio was determined, and growth parameters estimated from both length and weight curves of the von Bertalanffy model. The general sex ratio showed no significant difference between males and females (?2=0.04, p > 0.05). However, values of slopes b between males and females were significantly different (ts=2.75, p < 0.05), as well as intercepts a (ts=2.44, p < 0.05). Thus, the length-weight ratio was determined separately: W=7.48e-5L2.98 for males and W=1.21e-4L2.87 for females, indicating a negative allometric growth in both sexes. Growth parameters were established as: L8=134.80mm, W8=166.04g and k=0.86/yr for males; L8=122.35mm, W8=118.45g and k=0.63/yr for females. Lifespan was estimated at 3.05 years for males and 4.24 years for females. We concluded that Callinectes danae is a species with short lifespan and moderately rapid growth. The coefficient of variation values (CV), of the phi-prime growth performance index (Ø’), showed a different growth pattern compared to those obtained in other regions. We propose that a management strategy will be the periodical review of the minimum capture size for fishing area, after the great variability found in growth parameters.
title	Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela
title_short	Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela
title_full	Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela
title_fullStr	Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela
title_full_unstemmed	Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela
title_sort	crecimiento del cangrejo callinectes danae (decapoda: portunidae) de la isla de margarita, venezuela
publisher	Universidad de Costa Rica
publishDate	2011
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/3417
work_keys_str_mv	AT castillojesylen crecimientodelcangrejocallinectesdanaedecapodaportunidaedelaislademargaritavenezuela AT eslavanora crecimientodelcangrejocallinectesdanaedecapodaportunidaedelaislademargaritavenezuela AT waltergonzalezleo crecimientodelcangrejocallinectesdanaedecapodaportunidaedelaislademargaritavenezuela
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Crecimiento del cangrejo Callinectes danae (Decapoda: Portunidae) de la Isla de Margarita, Venezuela

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