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Micropterus salmoides

Basic information
Scientific name Micropterus salmoides

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オオクチバス
Common names Largemouth bass
Higher taxon Centrarchidae, Perciformes, Actinopterygii
Natural range North America.
Habitat Brakish, forest, lake or pond, stream.
Invasion information
Range in Japan Almost entire Japan, include several islands Range in Japan
Origin Unknown.
Date The first introduction was in 1925. Spread since middle 1960s.
Route Deliberate: For sports fishing and for food.
Impact Predation, competition against native species.
Regulation in Japan Import, transport and keeping are prohibited in Japan by the Invasive Alien Species Act.
Introduced range in other countries
Reference Notes
  • Ecol Soc Jpn (ed) (2002) Handbook of Alien Species in Japan. Chijinshokan, Tokyo (in Jpn)
  • 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)
  • etc.
 100 of the World’s Worst Invasive Alien Species, 100 of the Japan’s Worst Invasive Alien Species