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Abstract
Sound management of coastal zones depends on assessment tools capable to detect degradation processes in wetlands and other strategic ecosystems. Several functional (decomposition process) and structural (fish community) indicators were evaluated simultaneously on eight coastal wetlands of contrasting characteristics and different origin and intensity of disturbances affecting them. Those indicators that best discriminated between sites were selected for continued evaluation of the same wetlands. Ecological correspondence between structural and functional indicators was not confirmed in all sites owing to the use of both kinds of indicators for a better assessment. This contribution shows the importance of the simultaneous use of structural and functional indicators to detect both degradation and recuperation of these aquatic ecosystems.
El manejo adecuado de las zonas costeras requiere de herramientas que permitan detectar procesos degradantes en los ecosistemas estratégicos prestadores de servicios ambientales. Los indicadores ecológicos responden adecuadamente a esta necesidad en humedales costeros. Se estudiaron ocho humedales de origen y características distintas, con afectaciones contrastantes conocidas. Se seleccionaron los indicadores que mejor discriminaron los sitios y se utilizaron para evaluar la evolución del estado de conservación de los mismos. La correspondencia ecológica entre indicadores funcionales y estructurales no se confirmó en todos los casos, por lo que es necesario utilizar ambos tipos para obtener un mejor diagnóstico. En dicha contribución se muestra la utilidad del uso simultáneo de indicadores funcionales y estructurales para detectar, tanto degradación, como recuperación de este tipo de ecosistemas acuáticos. Los resultados presentados son parte del primer estudio conocido para desarrollar indicadores ecológicos en humedales costeros tropicales.
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