PhysOrg: Unlike the commercially raised Pacific oysters, Olympia oysters don't begin making their shells until 2-3 days after fertilization and make them far more slowly, which helps protect them from corrosive water during this critical development phase, said Oregon State University's George Waldbusser, principal investigator on the project.
Pacific oysters, on the other hand, only have a six-hour window to develop their calcium carbonate shell, and when exposed to acidified water, their energy stores...