The pH of oyster meat was recorded for each day of storage for both oyster species. The pH changed over time with a similar trend for both oyster species (Fig. 2). The pH of oyster meat initially increased, followed by a slight decrease before again increasing after Day 6. For Pacific oysters, the mean pH increased from 6.29 at Day 0 to 6.43 at Day 7. For Sydney rock oysters, the mean pH increased from 6.43 at Day 0 to 6.72 at Day 7.