Keyport is known for its oyster industry, which had been one of the world's largest suppliers until overfishing and pollution led to a collapse of the industry in the early to mid 20th century. In August 2010, NY/NJ Baykeeper suspended an effort to recreate the oyster reefs in Keyport's Raritan Bay after the New Jersey Department of Environmental Protection cited concerns that the oysters could be harvested and sold to the public despite the persistent heavy pollution in the water after concerns had been raised by the United States Food and Drug Administration that patrols were insufficient to ensure that the oysters in the reef were not being harvested.