Salmo platycephalus, known as the flathead trout, Ala balik or the Turkish trout, is a type of trout, a fish in the Salmonidae family. It is endemic to south-eastern Turkey. It is known only from one population, which occupies three streams, tributaries of the Zamantı River in the Seyhan River basin. The population itself is abundant, but subject to threat by habitat loss, since the range is small. Also, predation of juveniles by introduced rainbow trout may cause population decline. The species is classified as critically endangered.
Genetic evidence suggests that the flathead trout may indeed be derived from introduced brown trout (Salmo trutta) and thus not be a distinct species of its own. Nevertheless, it is a unique form which requires protection.
- Crivelli, A.J. 2005. Salmo platycephalus. 2006 IUCN Red List of Threatened Species. Downloaded on 1 October 2009.
- Froese, Rainer and Pauly, Daniel, eds. (2006). "Salmo platycephalus" in FishBase. April 2006 version.
- Tarkan, AN et al. (2008) Threatened fishes of the world: Salmo platycephalus Behnke, 1968 (Salmonidae) Environ. Biol. Fishes 81, 371-372.
- Behnke, R.J. 1968. A new subgenus and species of trout, Salmo (Platysalmo) platycephalus, from south-central Turkey, with comments on the classification of the subfamily Salmoninae. Mitt. Hamburg Zool. Mus. Inst. 66: 1–15.
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