About ONO HIROSHI
About MATSUDA YUKO
About IZUMIYA MASAMI
About 弘前大 農学生命科学
About 食品経済研究
About pelagic fishery
About atrophy
About Katsuwonus pelamis
About fishing method
About worker
About environmental conservation
About analysis of profitability
About 一本釣り
About foreign worker
About 環境に優しい漁
About price competition
About Fishery economics and management
About 遠洋漁業
About 衰退
About 外国人
About 労働力
About カツオ
About 一本釣り