== References ==== External links ==* Crassostrea gigas, Food and Agriculture Organization of the United Nations* Pacific oyster, United States National Oceanic and Atmospheric Administration* http://findarticles.com/p/articles/mi_m0QPU/is_2_24/ai_n15384489* http://www.stefannehring.de/downloads/142_Nehring-2003_Aliens-17_pacific-oyster.pdf
* Crassostrea gigas, Food and Agriculture Organization of the United Nations* Pacific oyster, United States National Oceanic and Atmospheric Administration* http://findarticles.com/p/articles/mi_m0QPU/is_2_24/ai_n15384489* http://www.stefannehring.de/downloads/142_Nehring-2003_Aliens-17_pacific-oyster.pdf