Inter-cohort growth for three tropical resources: tilapia, octopus and lobster

Velázquez Abunader, José Iván; Gómez Muñoz, Victor Manuel; Salas, Silvia; Ruiz Velazco Arce, Javier Marcial de Jesús

dc.creator	Velázquez Abunader, José Iván
dc.creator	Gómez Muñoz, Victor Manuel
dc.creator	Salas, Silvia
dc.creator	Ruiz Velazco Arce, Javier Marcial de Jesús
dc.date	2015-06-05
dc.date.accessioned	2016-05-03T15:30:01Z
dc.date.available	2016-05-03T15:30:01Z
dc.identifier	http://revistas.ucr.ac.cr/index.php/rbt/article/view/16272
dc.identifier	10.15517/rbt.v63i3.16272
dc.identifier.uri	https://hdl.handle.net/10669/26795
dc.description	Growth parameters are an important component for the stock assessment of exploited aquatic species. However, it is often difficult to apply direct methods to estimate growth and to analyse the differences between males and females, particularly in tropical areas. The objective of this study was to analyse the inter-cohort growth of three tropical resources and discuss the possible fisheries management implications. A simple method was used to compare individual growth curves obtained from length frequency distribution analysis, illustrated by case studies of three tropical species from different aquatic environments: tilapia (Oreochromis aureus), red octopus (Octopus maya) and the Caribbean spiny lobster (Panulirus argus). The analysis undertaken compared the size distribution of males and females of a given cohort through modal progression analysis. The technique used proved to be useful for highlighting the differences in growth between females and males of a specific cohort. The potential effect of extrinsic and intrinsic factors on the organism’s development as reflected in the size distribution of the cohorts is discussed.	es-ES
dc.format	application/pdf
dc.format	text/html
dc.language	eng
dc.publisher	Universidad de Costa Rica	en-US
dc.relation	http://revistas.ucr.ac.cr/index.php/rbt/article/view/16272/19994
dc.rights	Copyright (c) 2015 International Journal of Tropical Biology and Conservation	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol 63, No 3 (2015); 617-627	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol 63, No 3 (2015); 617-627	es-ES
dc.source	Revista Biología Tropical; Vol 63, No 3 (2015); 617-627	pt-PT
dc.source	2215-2075
dc.source	0034-7744
dc.source	10.15517/rbt.v63i3
dc.subject	modal progression	es-ES
dc.subject	growth	es-ES
dc.subject	sex	es-ES
dc.subject	lobster	es-ES
dc.subject	octopus	es-ES
dc.subject	tilapia	es-ES
dc.title	Inter-cohort growth for three tropical resources: tilapia, octopus and lobster	es-ES
dc.type	artículo original

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