Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica

Panulirus gracilis is a high valuable lobster species with considerable captures along the tropical Pacific coast. In this study, I present some biological and fishery parameters described after a sample of 843 lobsters, landed in Playa Lagarto from November 2007 to October 2008. From landing record...

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Main Author:	Naranjo Madrigal, Helven
Format:	Online
Language:	spa
Published:	Universidad de Costa Rica 2011
Online Access:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/3128

id	RBT3128
record_format	ojs
spelling	RBT31282022-06-06T18:56:43Z Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica Naranjo Madrigal, Helven Panulirus gracilis fishery Playa Lagarto Costa Rica pesquería Panulirus gracilis is a high valuable lobster species with considerable captures along the tropical Pacific coast. In this study, I present some biological and fishery parameters described after a sample of 843 lobsters, landed in Playa Lagarto from November 2007 to October 2008. From landing records, a total of 74.9% of lobsters were below the minimum legal catch size (80mm CL). Carapace lengths were in the range of 42.8 and 143.6mm for males and 115 and 35.8mm for females. The size structure showed a wide overlapping of population segments, and a trend to increase with depth, where lung diving and ?hooka? diving operations take place. Sex ratio was 1.36 M:H. The relationship between weight and LC revealed that females are heavier than males of the same size, and this difference was significant (p < 0.05). The von Bertalanffy growth parameters for males and females respectively (K=0.45-0.38, LC??=166.9-121.7) showed accelerated growth compared to other species. Males observed a higher growth rate than females. Furthermore, natural mortality (M), total mortality (Z) and fishing mortality (F) was higher in males (0.49-2.34-1.92) than in females (0.47-1.82-1.42). Recruitment was continuous for both sexes during the year, with an elevated intensity of 18.5% in July. Under the current fishing regime the population could be at risk of collapse, as indicated by the high exploitation rate (E) 0.80. Universidad de Costa Rica 2011-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/3128 10.15517/rbt.v0i0.3128 Revista de Biología Tropical; Vol. 59 No. 2 (2011): Volume 59 – Regular number 2 – June 2011; 619–633 Revista de Biología Tropical; Vol. 59 Núm. 2 (2011): Volumen 59 – Número regular 2 – Junio 2011; 619–633 Revista Biología Tropical; Vol. 59 N.º 2 (2011): Volume 59 – Regular number 2 – June 2011; 619–633 2215-2075 0034-7744 10.15517/rbt.v0i0 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/3128/3035 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	Naranjo Madrigal, Helven
spellingShingle	Naranjo Madrigal, Helven Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica
author_facet	Naranjo Madrigal, Helven
author_sort	Naranjo Madrigal, Helven
description	Panulirus gracilis is a high valuable lobster species with considerable captures along the tropical Pacific coast. In this study, I present some biological and fishery parameters described after a sample of 843 lobsters, landed in Playa Lagarto from November 2007 to October 2008. From landing records, a total of 74.9% of lobsters were below the minimum legal catch size (80mm CL). Carapace lengths were in the range of 42.8 and 143.6mm for males and 115 and 35.8mm for females. The size structure showed a wide overlapping of population segments, and a trend to increase with depth, where lung diving and ?hooka? diving operations take place. Sex ratio was 1.36 M:H. The relationship between weight and LC revealed that females are heavier than males of the same size, and this difference was significant (p < 0.05). The von Bertalanffy growth parameters for males and females respectively (K=0.45-0.38, LC??=166.9-121.7) showed accelerated growth compared to other species. Males observed a higher growth rate than females. Furthermore, natural mortality (M), total mortality (Z) and fishing mortality (F) was higher in males (0.49-2.34-1.92) than in females (0.47-1.82-1.42). Recruitment was continuous for both sexes during the year, with an elevated intensity of 18.5% in July. Under the current fishing regime the population could be at risk of collapse, as indicated by the high exploitation rate (E) 0.80.
title	Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica
title_short	Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica
title_full	Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica
title_fullStr	Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica
title_full_unstemmed	Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica
title_sort	biología pesquera de la langosta panulirus gracilis en playa lagarto, guanacaste, costa rica
publisher	Universidad de Costa Rica
publishDate	2011
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/3128
work_keys_str_mv	AT naranjomadrigalhelven biologiapesqueradelalangostapanulirusgracilisenplayalagartoguanacastecostarica
_version_	1810114499262283776

Biología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Rica

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