Outline of the third international symposium on Manila (asari) clam

摘要

Manila clam (Ruditapes philippinarum, commonly known as asari in Japanese) is an important bivalve species for fisheries and aquaculture in many parts of the world. Asari is indigenous to East Asian countries, such as China, Korea and Japan, and it was accidentally introduced to Washington State, the United States in Pacific oyster (Crassostrea gigas) spat shipments from Japan in 1900. It quickly became naturalized in the west coast of North America and is now found and cultured from northern California to southern British Columbia, Canada. In 1972, asari was introduced to France from Oregon State as a substitute for the native Ruditapes decussatus, whose abundance had declined in Europe due to overexploitation. Asari is now produced not only in its native countries but in the United States, Canada, France, Spain, Italy, England, Ireland, Portugal, Norway, Germany, Belgium, Tunisia. Morocco and Israel (FAO, http:// www.fao.org/fishery/culturedspecies/Ruditapes_ philippinarum/en).