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  3. Plecoglossus altivelis ryukyuensis

Plecoglossus altivelis ryukyuensis

Basic information
Scientific name Plecoglossus altivelis ryukyuensis (No picture)
Common names Ryukyu-ayu-fish
Higher taxon Plecoglossidae, Osmeriformes, Actinopterygii
Natural range Okinawajima and Amamoshima Islands. The Okinawajima population was extinct in late 1970s.
Habitat Middle parto of rivers, lakes, and sea.
Invasion information
Range in Japan Okinawajima Is. (Native population in this island was already extinct). Range in Japan
Origin Amamioshima island.
Date 1992
Route Deliberate: Re-introduction
Impact Unknown impact.
Regulation in Japan Capture of this species is controled by Kagoshima Pref. local governments.
Introduced range in other countries None.
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)
 IUCN Red List (EN)