Crassostrea gigas, commonly known as the Pacific oyster, is a species of oyster native to the coasts of Asia. It is widely cultivated for its edible meat and is known for its ability to thrive in various marine environments. This oyster can grow to a size of up to 12 inches and has a rough, irregular shell that provides protection from predators. The Pacific oyster plays a significant role in marine ecosystems by filtering water and improving water quality. It is also an important species in aquaculture, contributing to the economy in many coastal regions. Its adaptability and resilience make it a popular choice for oyster farming worldwide.