Development of adaptive marine ecosystem management and co-management plan in Shiretoko World Natural Heritage Site : Interaction between land and marine ecosystems

开展了海洋生物及其环境监测方法的开发，并在知床世界自然遗产（SWNH）地区开展了各种实地观测。结果表明，北方沿海地区初级生产系统与南方沿海地区存在明显差异。通过稳定同位素分析，阐明了太平洋鲑（Oncorhynchus）逃逸对沿岸生态系统海水营养物质供应的影响，以及与棕熊（Ursus arctos）摄食行为模式相关的野生粉红鲑（O.gorbusha）逃逸动态和产卵承载力。基于适应性海洋生态系统管理理论，提出了一种新的方法，以知床近海渔业为例，利用渔获量和起获量来评价每种鱼类的最佳渔业作业。

We carried out the development of monitoring methods on marine life and their environment and promoted various field observations in Shiretoko World Natural Heritage (SWNH) area. As a result, it is clear that there is difference in primary production system between northern coastal region and southern coastal region. We clarified 1) the effect of Pacific salmon (Genus Oncorhynchus) escapement on supply of marine-derived nutrients to the riparian ecosystems using the stable isotope analysis, and 2) to estimate escapement dynamics and spawning carrying capacity of the wild pink salmon (O.gorbusha) relating to the feeding behavioral pattern of brown bear (Ursus arctos) in SWNH area. Based on the adaptive marine ecosystem management, we proposed new method to evaluatean optimum fisheries operation for each fish species using both catch of fish and haul of fish in the Shiretoko coastal fisheries.