Shinano River Basin Committee Upstream Division Member (Hiroshi Hakoyama)

Chikuma River Midstream Gravel Bank Preservation and Regeneration Study Group Member (Sakie Kodama)

Chikuma River Office: River Environment Preservation Monitor Member (Sakie Kodama)

River Ecology Academic Research Group Parent Member (Hiroshi Hakoyama)

Focal Point of scientific meetings on eel, Fisheries Agency (Hiroshi Hakoyama)

QS Global Academic Survey 2024 for Universitas Gadjah Mada (Hiroshi Hakoyama)