Invasion information |
Range in Japan |
Not established in Japan |
|
Origin |
Unintroduced to Japan. |
Date |
Not Introduced to Japan. The first record in the Great Lakes of North America was in 1985. |
Route |
Accidental: Contamination in ballast water, fouling on drifting objects. |
Impact |
Explosive infestation of this species cause inhibition of growth or suffocation of native bivalves, change of community structure by infestation of submerged plants through change of water clarity by filter feeding, pollution of ships, constriction of supply pipes of power plants, etc. Native organism(s) affected: Various freshwater animals and plants. |
Regulation in Japan |
Import, transport and keeping are prohibited by the Invasive Alien Species Act. |
Introduced range in other countries |
Europe, North America (the Great Lakes, St. Lawrence River, Mississippi River, etc.) |