Sarcocheilichthys variegatus microoculus

Basic information
Scientific name	Sarcocheilichthys variegatus microoculus	Click to magnify
Common names	Biwa-higai
Higher taxon	Cyprinidae, Cypriniformes, Actinopterygii
Natural range	Biwako Lake and Setagawa River.
Habitat	Lake and lower part of river.

Invasion information
Range in Japan	Tohoku, Hokuriku, and Kanto District, Yamanashi, Nagano, Kochi, and Fukuoka Prefs.
Origin	Biwako Lake, Japan.
Date	1912 and later. Introduction to Kasumigaura Lake (Ibaraki Pref.) was in 1918.
Route	Accidental: Hitchhiking on seed release of ayu (Plecoglossus altivelis altivelis). Deliberate: Released to Kasumigaura Lake in 1918 for fishery.
Impact	Unknown impact. Native organism(s) affected: Fishes.
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) http://www.fishbase.org/search.cfm
Kurita et al. (2011) Appearance pattern of fishes in the Yamadagawa canal, the Ongagawa River at the northern part of Fukuoka, japan. Bull Biogeogr Soc Japan. 66, 183-193 (in Jpn with English abst)
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)