Invasion
Invasion Description
1st Record: Wellington, North Island/New Zealand/Cook Straits (1983, Gordon and Mawatari 1992)
Geographic Extent
Whangarei (North Island)/New Zealand/Whangarei Harbour (Cranfield et al. 1998); Marsden Point and Whangarei Port, North Island/New Zealand/Whangarei Harbour (Inglis et al. 2006e); Auckland (North Island)/New Zealand/Hauraki Gul (Cranfield et al. 1998); Tauranga (North Island)/New Zealand/Bay of Plenty (Cranfield et al. 1995); Napier (North Island)/New Zealand/Hawke Bay (1986, Gordon and Mawatari 1992); Wellington, North Island/New Zealand/Cook Straits (1983, Gordon and Mawatari 1992); Nelson (South Island)/New Zealand/Tasman Bay (1985, Gordon and Mawatari 1992); Lyttleton (South Island)/New Zealand/Lyttleton Habour (Cranfield et al. 1998)
Vectors
Level | Vector |
---|---|
Probable | Hull Fouling |
Regional Impacts
Ecological Impact | Competition | |
In New Zealand, W. subtorquata, arriving in 1983, quickly replaced W. arcuata at most locations (Gordon and Mawatari 1992). | ||