Dos nuevas especies de truchas atlánticas (Actinopterygii, Salmonidae) de Marruecos

Ignacio Doadrio; Silvia Perea; Ahmed Yahyaoui

doi:10.3989/graellsia.2015.v71.142

Autores/as

Ignacio Doadrio Biodiversity and Evolutionary Group. Museo Nacional de Ciencias Naturales. CSIC.
Silvia Perea Biodiversity and Evolutionary Group. Museo Nacional de Ciencias Naturales. CSIC.
Ahmed Yahyaoui Laboratory of Zoology and General Biology, Faculty of Sciences, Mohammed V. University

DOI:

https://doi.org/10.3989/graellsia.2015.v71.142

Palabras clave:

Cuenca del Draa, Lago de Isli, Marruecos, Salmonidae, nuevas especies, Taxonomía

Resumen

Cuatro especies del género Salmo Linnaeus, 1758 se han reconocido tradicionalmente en Marruecos: S. macrostigma Duméril, 1858; S. pallaryi Pellegrin, 1924; S. pellegrini Werner, 1931 y S. akairos Delling y Doadrio, 2005. Dos de estas especies se distribuyen por las cuencas mediterráneas (S. macrostigma) y atlánticas (S. pellegrini), mientras que las otras dos están restringidas a lagos aislados en las montañas del Atlas, una de ellas al Lago Ifni (S. akairos) y la otra, probablemente extinta, al Lago de Sidi Alí (S. pallaryi). Estudios filogenéticos preliminares y estudios regionales basados en alozimas, microsatélites y marcadores mitocondriales hallaron una alta estructuración de las poblaciones de este género en Marruecos, con diferencias genéticas significativas en las poblaciones del lago de Isli (Montañas del Atlas) y de la cuenca del Draa en el sur de Marruecos. En el presente trabajo nosotros proveemos evidencia morfológica y genética para distinguir estas poblaciones del lago de Isli y de la cuenca del Draa como dos especies diferentes.

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