近年来,水产养殖的病害日趋严重,其中:对虾养殖的病害尤为触目惊心。1993年的一场浩劫,使全国对虾总产量减产12万t,损失惨重;1994年奋起再战,未见复苏迹象,总产量更趋下跌,仅以环渤海养虾区为例,辽宁、山东、河北、天津等3省一市的对虾总产量只有27292t。环渤海养虾是我国养虾的首发地区和主要产区,以往历年产量均占全国总产 In recent years, the diseases of aquaculture have become increasingly serious. Among them, the diseases of shrimp farming are particularly alarming. In 1993, a catastrophe caused a total loss of 120,000 t of shrimp production across the country, causing heavy losses. In 1994, there was no sign of recovery and the total output dropped even more. Only in the shrimp fishery around the Bohai Sea, Liaoning and Shandong , Hebei, Tianjin and other three provinces and one city shrimp production only 27292t. Bohai Sea shrimp farming is the shrimp in our country the starting area and the main producing areas, the past annual output accounts for the country’s total output