Características poblacionales del cambute, Strombus galeatus (Gastropoda: Strombidae) en el Parque Marino Ballena, Pacífico, Costa Rica (1999-2003)
Population characteristics of the cambute, Strombus galeatus at the Ballena Marine Park, Central Pacific, Costa Rica (1999-2003). Marine parks and reserves are important for biodiversity conservation and as sustainable places for recovery of fishery resources, especially for those species of economi...
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| Format: | Article in Journal/Newspaper |
| Language: | Spanish |
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Universidad de Costa Rica
2008
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| Online Access: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/27213 https://doi.org/10.15517/rbt.v56i4.27213 |
| Summary: | Population characteristics of the cambute, Strombus galeatus at the Ballena Marine Park, Central Pacific, Costa Rica (1999-2003). Marine parks and reserves are important for biodiversity conservation and as sustainable places for recovery of fishery resources, especially for those species of economic importance such as the Pacific conch Strombus galeatus. Independent surveys, from 1999 to 2003 were done in three areas in the park, by snorkeling and/or scuba diving. A total of 168 live snails were captured, and 120 of them were marked with plastic tags, albeit none were recaptured. Conchs were found on sandy and rocky bottoms, with young protected in corals or rocks. The population was mostly composed by young adults (50% of the population; mean length 162.2mm), with a 50:50 sex ratio. Density was 683 conchs/ha which reflects a relatively good population condition for the area. This park has natural barriers, allowing conchs to move along the area. Rev. Biol. Trop. 56 (Suppl. 4): 113-124. Epub 2009 June 30. Los parques marinos constituyen refugios importantes para la conservación de estos ambientes, las especies que los habitan, y especialmente para aquellas que están sometidas a considerables niveles de extracción por pesca (Palumbi 2004). El Parque Nacional Marino Ballena (PNMB), costa Pacífica de Costa Rica, fue creado en 1989. Cuenta con un total de 115ha terrestres y 5375ha de ambientes marinos (arrecifes de coral, islas, playas de arena blanca, manglares, entre otros). El PNMB contiene el arrecife de coral más grande de la costa Pacífica de Centroamérica (Alvarado & Fernández 2005), y en él es frecuente avistar a la ballena jorobada entre diciembre y abril, y otros organismos de esta zona privilegiada (Kappelle et al. 2002).Este estudio se basó en dos actividades principales: en la realización de entrevistas con los pescadores y algunos habitantes del sitio; y en la observación de la población de caracoles dentro del parque. |
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