About IMAI Chifumi
About National Fisheries Univ.
About SAKAI Harumi
About National Fisheries Univ.
About ARAI Takaomi
About Univ. Tokyo
About 水産大学校研究報告
About Cyprinidae
About endemic species
About statolith
About Strontium
About Calcium
About abundance of element
About trace element
About ratio
About life cycle
About animal migration
About river
About ocean
About Yamagata prefecture
About spawning season
About egg-laying
About habitat
About downstream migration
About catadromous behavior
About Mogamigawa River
About native variety
About near endangered species
About native variety
About Tribolodon nakamurai
About ウケクチウグイ
About rare species
About statolith
About Fishes
About Animal ecology in general
About コイ科
About 希少種
About 耳石
About Sr
About Ca
About 解析
About 河川
About 生活史
About 検証