The humpback whitefish (''Coregonus pidschian''), also referred to as the bottom whitefish, the Arctic whitefishKottelat, M. and Freyhof, J. 2007. Handbook of European Freshwater Fishes. Publications Kottelat, Cornol, Switzerland. or the pidschian, is a species of freshwater whitefish with a northern distribution. It is one of the members in the broader common whitefish complex, or the ''

Coregonus clupeaformis The lake whitefish (''Coregonus clupeaformis'') is a species of freshwater whitefish from North America. Lake whitefish are found throughout much of Canada and parts of the northern United States, including all of the Great Lakes. The lake white ...

'' complex. This fish lives in estuaries and brackish water near river mouths, in deltas and in slowly running rivers, in large lakes with

tributaries A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage b ...

, and floodplain lakes. It can migrate long distances upriver for spawning. The distribution of ''Coregonus pidschian'' is in the Arctic basin, ranging from Northern

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...

and

Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...

across the Russian coast to

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

and up to the Mackenzie River drainage in North-West Canada. It is also found in the Okhotsk Sea basin.Пыжьян
Red Book of the Kamchatka Krai.

References

Coregonus Fish described in 1789 Taxa named by Johann Friedrich Gmelin Freshwater fish of the Arctic Taxonomy articles created by Polbot {{Salmoniformes-stub