Macropodus ocellatus

Basic information
Scientific name	Macropodus ocellatus	(No picture)
Major synonym	Macropodus chinensis
Common names	Paradise fish
Higher taxon	Osphronemidae, Perciformes, Actinopterygii
Natural range	Chang Jiang River to W Korean Peninsula.
Habitat	Lowland shallow ponds, rice fields, canals irrigation, etc.

Invasion information
Range in Japan	Niigata, Ibaraki, Nagano, Aichi, and Okayama Prefs. This species was established in wider region in past, but have disappeared in many regions, probably due to urbanization and farm area consolidation.
Origin	Korean Peninsula (around Seoul)
Date	Privately imported in 1914. In Kanto District, this species was escaped in 1917. In Okayama Pref., this species was released in 1937. By 1970, released in several regions in Honshu Is. The first record in Kasumigaura Lake, Ibaraki Pref., was in 1930.
Route	Deliberate: Escape of pet animal (in Kanto District, 1917); Release for biological control of the parasite Schistosoma japonicum
Impact	Unknown impact.
Regulation in Japan	No action for prevention, mitigation, control, or eradication.
Introduced range in other countries	None.

Reference

Notes

FishBase, accessed on 2010-06-15, http://www.fishbase.org/search.cfm
Kitagawa & Hosoya (2011) Vicissitudes of roundtail paradise fish Macropodus ocellatus (Cantor, 1842) introduced to the japanese Archipelago. Bull Biogeogr Soc Japan. 66, 49-55 (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)
etc.