About AOYAMA Jun
About Univ. Tokyo, Iwate, JPN
About Coastal Marine Science
About Oncorhynchus keta
About egg-laying
About Iwate prefecture
About littoral zone
About hatching
About dead body
About adult (development)
About appearance inspection
About habitat
About water temperature
About river
About recurrent migration
About aquatic animal
About Sanriku littoral area
About adult fish
About natural fish
About steep stream
About Population ecology
About Fishes
About 孵化場
About 資源
About 増強
About シロザケ
About Oncorhynchus
About 産卵
About 三陸沿岸