National Institute for Environmental Studies Invasive Species of Japan Japanese | English
  1. Invasive Species of Japan >
  2. Fishes >
  3. Salvelinus namaycush

Salvelinus namaycush

Basic information
Scientific name Salvelinus namaycush (No picture)
Common names Lake trout
Higher taxon Salmonidae, Salmoniformes, Actinopterygii
Natural range N North America, in and around Great Lakes.
Habitat Lakes and large rivers. Deep layer of lakes in summer, and rock reef in sea coast in early spring and late autumn.
Invasion information
Range in Japan Chuzenjiko Lake, Tochigi Pref. Range in Japan
Origin Imported from Canada (Opeongo Lake and Ontario Lake)
Date In 1966, 1968 (from Opeongo Lake), and 1969 (from Ontario Lake), eggs are imported. Release was in 1969, at Chuzenjiko Lake.
Route Deliberate: As fishery resource.
Impact Unknown impact.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries Norway, Sweden, Germany, Switzerland, Italy, Argentina, Kerguelen Is., etc.
Reference Notes
  • Froese & Pauly (eds) (2009) FishBase (Accessed on 2010-12-14)
  • 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)