Innovative Farming Methods for Production and Harvest of Manila Clams in Washington State, USA

摘要

The Manila clam Venerupis philippinarum (synonymous with Tapes semidecussata, T. philippinarium, and T. japonicas) is a significant aquaculture crop in China, Japan, France and Italy and other shellfish farming regions. Manila clams were accidentallyintroduced during the 1920s and 1930s to the Pacific coast of North America in oyster seed shipments from Japan. The clam quickly naturalized and spread to become common from southern British Columbia to northern California. It is now an important commercial clam species on the Pacific coast, with nearly all harvest from Washington State, USA (4,3001 in 2015) and British Columbia, Canada.