In the field of fishery, the advanced fishing method which had developed along the shore of the Inland Sea and Kumano spread across Japan, and the cultivation of salt fields in which brine is brought through tidal action along the coast of the Inland Sea improved the mass production of salt, which developed the nationalwide distribution system of salt.
漁業では上方漁法が全国に広まり、瀬戸内海の沿岸では入浜式塩田が拓かれて塩の量産体制が整い各地に流通した。