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

Ischikauia steenackeri

Basic information
Scientific name Ischikauia steenackeri

Click to magnify

Common names Wataka
Higher taxon Cyprinidae, Cypriniformes, Actinopterygii
Natural range Biwako-Yodogawa River System, Japan
Habitat Lakes, ponds and swamps with reed. Backwater of lower rivers.
Invasion information
Range in Japan Kanto and Hokuriku Districts, Nara, Okayama, Shimane, Yamaguchi, and Fukuoka Prefs. Range in Japan
Origin Biwako Lake, Japan.
Date Unknown.
Route Accidental: Hitchhiking on seed release of ayu (Plecoglossus altivelis altivelis).
Impact Unknown impact.
Regulation in Japan No action for prevention, mitigation, control, or eradication.
Introduced range in other countries None.
Reference Notes
  • Froese & Pauly (eds) (2009) FishBase (Accessed on 2010-12-06)
  • 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)
  • Yanai et al. (2008) The introduction process in alien fishes found from Lake Kasumigaura and Kitaura. Bull Ibaraki Pref Freshwater Fishery Exper St. 41, 47-54 (in Jpn)