Oyster farming extends across many countries of the world in temperate and tropical regions. The adaptability of oysters makes them a good aquaculture species. No supplementary feed is provided, and no medicines or chemicals are administered during grow-out.
Most oyster species used in aquaculture can be found naturally in marine and brackish areas close to the coast in shallow depths and thus can be farmed in locations accessible at low tide. Pacific oysters are the most important cultured species globally
Global oyster production in 2016 equated to some 5.59 million tonnes, with China producing 86% of the global total.