About MIYASHITA KAZUSHI
About 北海道大学北方生物圏フィールド科学センター
About 日本水産学会誌
About aquatic resource
About underwater acoustics
About fish finder
About underwater forest
About biological classification
About identification
About service
About fishing gear
About eelgrass bed
About species discrimination
About ecological service
About quantitative echo sounder
About fisheries resource
About scientific fish finder
About Fishing gears,fishing tackles
About Ecosystems
About Underwater acoustics
About 水産資源
About 生態
About 音響モニタリング
About 手法
About 開発
About 応用