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Morphological variation and taxonomic status of Altai osmans, Oreoleuciscus, from the upper reaches of the Ob River system
Golubtsov, A.S.; Berendzen, P.B.; Annett, C.A. (1999). Morphological variation and taxonomic status of Altai osmans, Oreoleuciscus, from the upper reaches of the Ob River system. J. Fish Biol. 54: 878-899
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Golubtsov, A.S.
  • Berendzen, P.B.
  • Annett, C.A.

Abstract
    The morphology of the endemic Altai osmans Oreoleuciscus spp. (Cyprinidae), from headwaters of the Ob tributaries in the Altai Republic (Russia), Terekhol Lake in the Tuva Republic (Russia), and the Chovd Gol River drainage and related bodies of water (Mongolia), where they are one of only four fish species occurring in most bodies of water were examined. Their high degree of morphological variation makes species determination problematical. Analysis of six meristic counts and principal component analysis (PCA) of 21 morphological measurements discriminated two species, Oreoleuciscus potanini and O. humilis. The results suggest that only O. potanini occurs in the upper reaches of the Ob system. The systematics and biogeography of Oreoleuciscus are discussed.

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