Invasion
Invasion Description
1st record: Oahu/HI/Pearl Harbor (1918, Coles et al. 1999). An earlier planting by a Japanese immigrant, may have occurred in the 1880s or 1890s, but the first documented collections were made in 1918 (Carlton and Eldredge 2009).
Geographic Extent
Oahu/HI/Pearl Harbor (1918, Coles et al. 1999); Oahu/HI/Kaneohe Bay (1920, Yap 1977; Coles et al. 2002); Oahu/HI/Kahili Basin (1920, Carlton and Eldredge 2009); Oahu/HI/Mamala Bay (1981, USNM 819726, US National Museum of Natural History 2007); Oahu, Moloka, and Hawaii/HI/Pacific Ocean (Brock 1960, cited by Carlton and Eldredge 2009)
Vectors
| Level | Vector |
|---|---|
| Probable | Fisheries Intentional |
Regional Impacts
| Economic Impact | Fisheries | |
| Ruditapes philippinarum was stocked, several times in Oahu, possibly in the 1880-90s, and then before 1918, and in 1920, and then transplanted to other islands. Harvesting at several locations has been intense enough to reduce, or eliminate local populations (Yap 1977; Carlton and Eldredge 2009). | ||