Invasion

Invasion Description

1st Record: Pittwater/Tasmania/Pittwater Haven, Frederick Henry Bay (1947, English et al. 2000, 5,000 oysters from Kumamoto). Molecular analyses indicate that surviving oysters (C. gigashave no detectable genetic contribution from C. sikamea, despite having similar deep-cupped shells (English et al. 2000).

Geographic Extent

Pittwater/Tasmania/Pittwater Haven, Frederick Henry Bay (1947, English et al. 2000, 5,000 oysters from Kumamoto).