Environmental Historical Research on Inland Waters in Medieval Japan

本研究以中世纪水陆交错带过渡环境为研究对象。结果，我发现天野佳彦强调的特权渔业并不是那么常见，但从小型简单渔业到技术先进的大型渔业，各种不同类型的渔业共存，相互竞争。此外，我还澄清了首都京都是如何食用和交换淡水鱼作为礼物的，并指出京都片田渔民捕获的鲫鱼需求扩大的可能性与片田渔港的发展密切相关。

This study focused on the transitional environment (ecotone) between land and water in the Middle Ages. As a result, I found that fishery with special privileges which Yoshihiko Amino emphasized was not so common, but various different types of fishery, from small-sized simple fishery to large-sized fishery with advanced techniques, coexisted and competed with each other. In addition, I also clarified how freshwater fish was eaten and exchanged as gifts in the capital Kyoto, and pointed out the possibility that expansion of demand for crucian carps caught by Katata fishermen in Kyoto was closely related to the development of Katata fishing port.