近年来,我国沿海部分地区(如辽宁、山东、河北等省)已开始进行大生产性对虾放流增殖工作,其虾苗从暂养池向海里投放时的定量方法多采用“干称法”。该法虽然比较准确,但虾苗易造成机械损伤,而且验收定量人员劳动强度较大,费工费时。如1986年6～7月,辽宁省在黄海北部海洋岛渔场放流了约数 In recent years, some coastal areas in China (such as Liaoning, Shandong, Hebei and other provinces) have started to carry out large-scale production and propagation of shrimp. The quantitative methods used when their shrimp seedlings are put into the sea from holding ponds are mostly based on the “dry weighing method.” Although the law is more accurate, but easy to cause mechanical damage Shrimp seedlings, and acceptance of quantitative labor more labor intensive, time-consuming work. For example, from June to July 1986, Liaoning Province released about a few fishing grounds in the northern island fishery of the Yellow Sea