Invasion
Invasion Description
1st Record: Fukuyama Harbor/Japan/Seto Inland Sea (1955, Onbe 1966)
Geographic Extent
Fukuyama Harbor/Japan/Seto Inland Sea (1955, Onbe 1966); Mihara, HonshuJapan/Seto Inland Sea (1955-1957, Nagata 1960,
Vectors
| Level | Vector |
|---|---|
| Alternate | Ballast Water |
| Alternate | Hull Fouling |
Regional Impacts
| Economic Impact | Fisheries | |
| The growth of cultured seaweed (Undaria pinnatifida was reduced by being fouled by the tubes of M. acherusicum and Erichthonius brasiliensis. The tubes were also found on the shells of cultivated edible and pearl oysters (Onbe 1966). | ||
| Ecological Impact | Competition | |
| Onbe (1966) observed that no significant fouling by other organisms occurred on buoys which were completely covered by M. acherusicum's tubes. | ||
| Ecological Impact | Habitat Change | |
| Onbe (1966) observed that no significant fouling by other organisms occurred on buoys which were completely covered by M. acherusicum's tubes. | ||