After reservoir constructed, production of natural aquatic resources should be investigated in detail because changing of flow regime may affect species composition of fish. Monitoring program and fisheries management plan should be established both in upstream and downstream portion of Project area at least at the dry season and wet season. Economical species and native fingering are released into both reservoirs and waterways. The fish monitoring programme will be determined on aquatic ecology for ten years of operation period. Additional fish surveys to be organized in the river basin or waterways of both upstream and downstream area. This should provide details on fish productivity and potential species for restocking.