日本的鱼苗生产水平已经远远超过传统养殖的容量，因此开始研究大规模养殖鱼类的新方法。最初，他们主张将日本做户内海作为半封闭海区，并开始大量放养红海编、对虾和长毛支轴的幼苗。这些试验获得成功后，范围将扩大到日本内海一些适合增殖的海区，增殖品种的选择根据鱼类的 Japan’s fry production levels have far exceeded the capacity of traditional farming, so start a new method of large-scale farmed fish. Initially, they advocated the use of Japan as an inland sea as a semi-enclosed sea area and started stocking large numbers of seedlings of the Red Sea, shrimp and long-haul spindles. After the success of these experiments, the range will be expanded to some sea areas suitable for proliferation in the inland sea of ​​Japan. The selection of propagation species is based on the