About MORITA KENTARO
About 北海道区水産研
About Salmon情報
About labeling method
About Oncorhynchus keta
About composition (constitution)
About liberation (aquatic)
About mother-river homing
About Hokkaido
About coastal fishery
About otolith marking
About fisheries product composition
About tagged stocking
About Fishes
About Fishing grounds and fishing conditions
About Aquacultural methods
About サケ
About 沿岸
About 漁獲物
About 耳石
About 標識
About 調査