现在,日本养殖生产的牡蛎、扇贝和海藻,已超过野生的产量,眼看鲍鱼和鲷的养殖也将超过野生产量.而且苗种生产已达到很高水平,从囚禁式养殖逐步向放流养殖发展.1972年日本濑户内海区的苗种产量即达:鲍31万,比目鱼106万,真鲷93万,梭子蟹(大眼幼体期)1093万,对虾(PL20-40毫米)15600万. 日本现在研究的课题是,如何最有效地使用这些苗种,提高产量,改进放养技术,和提高放养后的 Now, the oysters, scallops and seaweed farmed in Japan have surpassed the wild ones, and the production of abalone and seabream will also surpass the wild output, and seed production has reached a very high level, gradually moving from captivity to phlowing. In 1972, the seed production in the Seto Inland Sea area in Japan reached as many as 310,000 abalones, 1.06 million flounder, 6.33 million red sea breams, 10.93 million bucks of crabs (large eyes) and 156 million prawns (PL 20-40 mm) The issue is how to use these seedlings most effectively, increase yields, improve stocking techniques, and improve stocking