Distribución espacio-temporal de la acedía Dicologoglossa cuneata (Moreau, 1881) en la desembocadura del río Guadalquivir (golfo de Cádiz, suroeste de la península Ibérica)
The present paper analyses spatio-temporal variations over the different developmental stages of the population of the wedge sole Dicologoglossa cuneata (Moreau, 1881) in the Guadalquivir River mouth. Monthly fish trawl surveys and ichthyoplankton tows were carried out from May 2000 to April 2001. T...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2003 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/326542 |
| Acceso en línea: | http://hdl.handle.net/10261/326542 |
| Access Level: | acceso abierto |
| Palabra clave: | Pesquerías Acedía desembocadura del Guadalquivir Estacionalidad huevos larvas Juveniles adultos reproductores |
| Sumario: | The present paper analyses spatio-temporal variations over the different developmental stages of the population of the wedge sole Dicologoglossa cuneata (Moreau, 1881) in the Guadalquivir River mouth. Monthly fish trawl surveys and ichthyoplankton tows were carried out from May 2000 to April 2001. The species's highest egg and larval abundance occurred during winter and at the beginning of spring, within the area's protected nursery grounds, and to the north of the study zone. D. cuneata juveniles were more abundant during winter, concentrating mainly in the areas close to the river mouth. Likewise, the catches of the adults and spawners were highest during winter, distributed mainly north of the protected nursery grounds. The Guadalquivir mouth ecosystem constitutes a major spawning, nursery and recruitment habitat for the wedge sole, whose spawning season occurs in winter and early spring, coinciding with the principal fishing effort of the fleet specialised in this species. |
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