关于紫菜的养殖,现在日本全国沿海共有24个府县约6万户渔民从事此业,年产22亿张紫菜。柴菜养殖发展的结果,过去未曾利用的海区,现在逐渐开发利用。第二次世界大战以后的产量如表1。大体说来,近年来总产量比1947年前的平均产量增长了将近一倍,养殖海区扩大到九州和东北海区。 About seaweed farming, there are now about 60,000 fishermen in 24 prefectures and cities across the Japan coast engaged in this industry, with an annual output of 2.2 billion seaweed. Chai Cai aquaculture development results, the sea has not been used in the past, and now gradually developed. The output after the Second World War is shown in Table 1. In general, the total output in recent years has nearly doubled from the average output before 1947, and the aquaculture area has expanded to Kyushu and the northeast sea area.