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

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dc.coverageCRCes-ES
dc.creatorNaranjo Madrigal, Helven
dc.date2010-05-18
dc.date.accessioned2016-05-03T15:30:58Z
dc.date.available2016-05-03T15:30:58Z
dc.descriptionPanulirus 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.es-ES
dc.formatapplication/pdf
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/3128
dc.identifier10.15517/rbt.v0i0.3128
dc.identifier.urihttps://hdl.handle.net/10669/26988
dc.languagespa
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsacceso abierto
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 59 (2) June 2011en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 59 (2) June 2011es-ES
dc.sourceRevista Biología Tropical; Vol. 59 (2) June 2011pt-PT
dc.source2215-2075
dc.source0034-7744
dc.source10.15517/rbt.v0i0
dc.titleBiología pesquera de la langosta Panulirus gracilis en Playa Lagarto, Guanacaste, Costa Ricaes-ES
dc.typeartículo original

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Revista de Biología Tropical