Growth and mortality of the fish Haemulon aurolineatum (Teleostei: Haemulidae) from Southwest of Margarita Island, Venezuela
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| Autores: | , , |
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| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2009 |
| Descripción: | We analyzed the growth and natural mortality of the fish known locally as cují (H. aurolineatum) in the southwest of Margarita Island, July 2005 to June 2006. A sample of 1 378 males and 1 143 females from artisanal fishing vessels of Boca del Río was analyzed. The common relation for both sexes was expressed by the equation P=0.038*L2.87. The asymptotic length (L∞) was estimated with Powell`s (1979) routine and Wetherall (1986), and the growth coefficient (k) with ELEFAN I - FISAT II (FAO-ICLARM). The modal progression analysis was used after decomposition of lengths frequency according to Bhattacharya, and the estimations of L∞ and k optimized according to Gulland and Holt (1959). The growth curve was fitted to von Bertalanffy (1960); it is exponential, with accelerated growth in the first two years and less growth as the fish approaches maximal length. The rate of natural mortality was high (M=1.15 year-1), and probably was caused by high depredation |
| País: | Portal de Revistas UCR |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lenguaje: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/11295 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/11295 |
| Palabra clave: | growth mortality haemulon aurolineatum margarita island venezuela crecimiento mortalidad margarita |