Silurus glanis

Basic information
Scientific name	Silurus glanis	(No picture)
Common names	wels catfish
Higher taxon	Siluridae, Siluriformes, Actinopterygii
Natural range	E & C Europe, W Asia
Habitat	Large rivers, lakes and ponds. Sometimes brackish zone.

Invasion information
Range in Japan	Not established in Japan. There is a record of this species found in a pond of Japan, in 2005.
Origin	Unintroduced to Japan.
Date
Route	Deliberate (distributed as pet animal)
Impact	Potentially: predation on native species. hybridization with native congeners. Native organism(s) affected: Native fished and crustaceans. Native Silurus.
Regulation in Japan	Invasive alien species (Invasive Species Act) Keeping this species is prohibited in Shiga Pref. Keeping and release of genus Silurus is prohibited in UK.
Introduced range in other countries	Algeria, Tunisia, Europe (Bosnia-Herzegovina, Croatia, France, Italy, Netherlands, Portugal, Spain, UK), Syria, Continental China. Extirpated in Denmark and Finland.

Reference

Notes

DECO (ed) (2006) Dictionary of Alien Species. Tokyo-Shoseki, Tokyo. (in Jpn)
Froese & Pauly (eds) (2009) FishBase. http://www.fishbase.org/
Global Invasive Species Database http://www.issg.org/database
JWRC (ed) (2008) A Photographic Guide to the Invasive Alien Species in Japan. Heibonsha. (in Jpn)
(Proposal) Information and evaluations on alien species considered to require selection of invasive alien species.（Accessed on 2018-12-07）https://www.env.go.jp/nature/intro/4document/data/sentei/10/mat04.pdf
etc.