First citation of Margaritifera margaritifera (L.) (Bivalvia, Unionoida) at the Tajo basin (Spain)
[EN] Here we report the finding of a new population of the freshwater pearl mussel Margaritifera margaritifera in the Iberian Peninsula. The population lives in the Alberche River in the province of Ávila, and is the first known population of this species in the Tajo basin. We have found 81 live spe...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2006 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/45256 |
| Acceso en línea: | http://hdl.handle.net/10261/45256 |
| Access Level: | acceso abierto |
| Palabra clave: | Margaritifera margaritifera Distribución España Captura de ríos |
| Sumario: | [EN] Here we report the finding of a new population of the freshwater pearl mussel Margaritifera margaritifera in the Iberian Peninsula. The population lives in the Alberche River in the province of Ávila, and is the first known population of this species in the Tajo basin. We have found 81 live specimens, all adults with lengths from 78 to 130 mm. One recently dead specimen measured 62 mm. The conservation status of this population is very similar to other known Iberian populations of the species, with large sized specimens and absence of recruitment. Analyses of the sequences of two different mitochondrial genes did not reveal genetic differences among the studied population and other Iberian populations of the species. The presence of M. margaritifera in a river belonging to the Tajo basin could be explained by a possible scenario of river catchment among tributaries of the Duero and Tajo basins |
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