前言对虾是珍贵的海产品,含有20.6％的高蛋白,0.7％的低脂肪,味道鲜美,深为世界各国人民所喜爱。从五十年代以来,国际市场的需求量一直稳步增长,促进了各国大力开发海洋虾类资源。五十年代末,世界虾类捕捞渔获量仅为60万吨左右,六十年代初增加到大约80万吨。到1963年增加到94万吨,十年后猛增产达到169.8万吨。海洋虾类资源是有限的,到八十年代不少天然虾类渔场,已充分开发,或者开发过度,预期在南、北美洲、大洋洲、中东及非洲沿海水域捕捞虾类,不可能进一步增加。在北太平洋水域,由于自然条件的变化,虾类资源也日益减少,北大西洋水域虾类捕捞量虽有可能少量增加,但大幅度上升似乎不大可能。目前 Prawn shrimp is a precious seafood, contains 20.6% of high protein, 0.7% low fat, delicious, deeply loved by people of all countries in the world. Since the 1950s, the demand in the international market has been steadily increasing, prompting countries to vigorously develop marine shrimp resources. In the late 1950s, the world’s catch of shrimp caught only about 600,000 tons, and increased to about 800,000 tons in the early 1960s. Increasing to 940,000 tons in 1963 and a sharp increase of 1,698,000 tons in 10 years. Marine shrimp resources are limited. By the early 1980s, many natural shrimp fisheries were fully exploited or over-developed. It is expected that there will be no further increase in the capture of shrimp in the coastal waters of South, North America, Oceania, Middle East and Africa. In the North Pacific Ocean, shrimp resources are also declining due to changes in natural conditions. Although there may be a small increase in shrimp catches in the North Atlantic waters, it seems unlikely that a substantial increase will occur. Currently