Oncorhynchus keta

Basic information
Scientific name	Oncorhynchus keta	Click to magnify
Common names	Chum salmon, Dog salmon, Keta salmon, Qualla, Summer chum
Higher taxon	Salmonidae, Salmoniformes, Actinopterygii
Natural range	Central to northern Japan, Korean Peninsula, Sea of Japan, Sea of Okhotsk, Bering Sea, Pacific coastal area of North America (to California).
Habitat	Rivers, Sea.

Invasion information
Range in Japan	Wide area of Hokkaido and Honshu such as Kuriyama River (Chiba), Tamagawa River (Tokyo), etc.
Origin	Unknown.
Date	Unknown.
Route	Deliberate: Release for fishery resource.
Impact	Unknown impact.
Regulation in Japan	Harvesting of this species is controlled by several local governments.
Introduced range in other countries	Norway, Latvia, Iran, Chile, etc.

Reference	Notes
Froese & Pauly (eds) (2009) FishBase (Accessed on 2010-12-07) http://www.fishbase.org/search.cfm Kawanabe et al. (eds) (2002) Freshwater Fishes of Japan, 3rd ed.. Yama-kei Publishers, Tokyo (in Jpn) Matsuzawa & Senou (2008) Alien fishes of Japan. Bun-ichi Sogo Shuppan, Tokyo (in Jpn)