Invasion information |
Range in Japan |
Coast of entire Japan. There are records in the following small islands: Teuri, Yagishiri, Sado, Bonin(Ogasawara), Oki, Awajishima, Tsushima, Iki, Yakushima, Kerama Group, Iriomotejima, etc. |
|
Origin |
Unknown. |
Date |
The oldest record in Japan was in 1932, at Kobe Port, Hyogo pref. |
Route |
Ballast water or fouling on ship. There is a record of fouling of this species on a drifted buoy made in China. |
Impact |
Competition with native or fishery fouling animals (molluscs, barnacles, etc.), hybridization with a native congener M. trossulus, water pollution by numerous dead mussel. Native organism(s) affected: Coastal animal community and aquafarming products. A native congener M. trossulus |
Regulation in Japan |
100 of the World's Worst Invasive Alien Species. |
Introduced range in other countries |
N Korea, SE Australia, South Africa, western coast of N America |