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{{Taxobox
| name = ''Stenodus leucichthys leucichthys''
| image =
| status = EW | status_system = IUCN3.1
| regnum = ]
| phylum = ]
| classis = ]
| ordo = ]
| familia = ]
| genus = '']''
| species = '']''
| trinomial = ''Stenodus leucichthys leucichthys''
| trinomial_authority = (], 1772)
| synonyms = }}

'''''Stenodus leucichthys leucichthys''''' is a subspecies of ] that inhabits rivers draining to the northern ]. It is native in ], ], ] and ]. ''Stenodus leucichthys leucichthys'' is a ] of the more widely distributed ] (''Stenodus leucichthys''), which mainly inhabits north-bound drainages of Russia, ] and northern ].<ref name="Belyaeva">E. S. Belyaeva: . caspianenvironment.org</ref><ref name="FB">{{FishBase species | genus = Stenodus | species = leucichthys | month = May | year = 2007}}</ref>

''Stenodus leucichthys leucichthys'' has a large mouth with a protruding lower jaw and a high and pointed dorsal fin. It is generally silver in color with green, blue or brown on the back. The meat is white, flaky and somewhat oily.

The fish used to inhabit particularly the ], ] and ] rivers, and migrate up to 3000 km upstream from the Caspian to their spawning grounds in the spring. Following the construction of dams and hydropower reservoirs, the migration and natural reproduction has been impeded, and the taxon is now considered as ] by the ].<ref name="IUCN">{{IUCN2008|assessors=Freyhof, J. & Kottelat, M.|year=2008|id=20745|title=Stenodus leucichthys|downloaded=30 October 2008}} </ref> The stock however survives in hatcheries and some populations are maintained by stocking, e.g. in the Caspian Sea.

Scientists and managers have various views of the taxonomic status of this Caspian fish (known as ''belorybitsa'' in Russian) as related to the populations in the Arctic drainages (''nelma'' in Russian). Apart from a subspecies-level distinction between ''Stenodus leucichthys leucichthys'' and the northern inconnu ''Stenodus leucichthys nelma'',<ref name="Belyaeva"/> a full species-level distinction is made by some scientists, as well as by the IUCN.<ref name="IUCN"/> The North American tradition however does not recognise any distinction, and refers to all populations as ''S. leucichthys''.<ref name="FB"/><ref>{{ITIS|ID=162006|taxon=Stenodus leucichthys|year=2007|date=July 15}}</ref>

== References ==

<references/>

{{Salmoniformes-stub}}

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