自1984年到1992年,亚洲和全世界的淡水虾(罗氏沼虾)养殖产量增加了近3倍。1992年,亚洲罗氏沼虾产量占世界淡水养虾产量的92%(表1),北美洲、中美洲和南美洲则占剩下产量的绝大部分,非洲(0.2%)和太平洋地区(0.1%)养虾较少,欧洲尚未有人工养虾的记录。 1991年以前的6年,全世界养殖罗氏沼 From 1984 to 1992, the production of freshwater prawn (Macrobrachium rosenbergii) in Asia and around the world increased nearly three-fold. In 1992, Macrobrachium rosenbergii production in Asia accounted for 92% of the world’s freshwater shrimp production (Table 1) while North America, Central America and South America accounted for the bulk of the remaining production in Africa (0.2%) and the Pacific Ocean (0.1% %) Shrimp less, there is no record of artificial shrimp farming in Europe. Six years before 1991, the Roche Marsh was farmed around the world