About TAKAHASHI SATORU
About 水産総合研究セ 北海道区水研
About Salmon情報
About Oncorhynchus keta
About liberation (aquatic)
About tracking
About mother-river homing
About egg removal
About stage (period)
About test
About Hokkaido
About marker
About archival tag
About release tracking
About Oncorhynchus keta
About Oncorhynchus keta
About regression testing
About Fishes
About Fishing grounds and fishing conditions
About Aquaculture in general
About サケ
About 採卵
About 親魚
About 年齢