Invasion
Invasion Description
1st Record: Miura, Kangawa Prefecture, Honshu/Japan (1968, Asakura 1992)
Geographic Extent
Yamaguchi, Honshu/Japan/Inland Sea (1998, Field Museum 282270, Field Museum 2008); Fukuyama, Honshu/Japan/Japan Inland Sea (1984, Ekawa 1985); Innoshima, Honshu/Japan/Japan Inland Sea (1984, Ekawa 1985); Kobe, Honshu/Japan Inland Sea (1984, Ekawa 1985); /Japan/Japan Inland Sea (1984, Ekawa 1985); Kishiwada, Honshu/Japan Inland Sea (1984, Ekawa 1985); Sakai, Honshu/Osaka Bay (1984, Ekawa 1985); Osaka, Kishiwada, Honshu/Osaka Bay (1984, Ekawa 1985); Tanabe, Honshu/Japan/Pacific Ocean (1976, Ekawa 1985); Suzuka, Honshu/Japan/Ise Bay (1976, Ekawa 1985); Numazu, Honshu/Japqan/Suruga Bay (1972, Ekawa 1985); Chojanasaki, Honshu/Japan/Sagami Bay (CAS IZ 127906, California Academy of Sciences 2008); Kamakura, Honshu/Japan/ Pacific Ocean (1972, Ekawa 1985); Oshima/Japan/Pacific Ocean (Ekawa 1985); Honshu/Japan/Tokyo Bay (1968, Asakura 1992; Woodruff et al. 1986); Kisarazu, Honshu/Tokyo bay (1972, Ekawa 1985); Kamogawa, Honshu/Japan/Pacific Ocean (1976, Ekawa 1985) Ekawa, K. 1985. Distribution and dispersion of Crepidula onyx in Japan. Chiribotan 16: 37-44.
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Ballast Water |
Regional Impacts
| Ecological Impact | Competition | |
| In Japan, this snail is suspected of interfering with behavior and reducing growth to the mollusks to which it is attached. 'But the ecological impacts seems not so large.' (National Institute for Environmental Studies 2013). | ||