論文：シンポ特集 2018年度漁業サンサスから見る日本の沿岸漁業とセンサス統計の課題
海面養殖業の現状と動向
2022 年 66 巻 1 号 p. 89-116
詳細
2022 年 66 巻 1 号 p. 89-116
In this report, I took up the major types of aquaculture in Japan and clarified their current situation from the fisheries census statistics. In addition, focusing on fish aquaculture, I analyzed the 2018 census and clarified its structural changes.
On the whole, the number of fish farming enterprises is decreasing significantly, especially in the fish farming industries such as yellowtail farming. In fish farming, expansion of scale has a great significance in improving productivity per worker, and expansion of scale is becoming a necessity to ensure competitiveness. On the other hand, in non-feeding aquaculture, there is no significant difference in productivity depending on the scale, and there is no clear merit in scaling up.
A small number of large corporate entities have come to hold a large market share, and their actions now have a significant impact on the overall trend of the aquaculture industry.
With the revision of the Fisheries Act, the aquaculture industry is likely to see more of this type of external capital and technology. The existing aquaculture industry is also developing like a food industry by integrating with land-based industries. Census statistics should evolve in order to capture these new situations.
