FISHERY BLOCK

摘要

PURPOSE: A fishery block is provided to make the movement of fishes easy and to function as a fish ladder at a shortage of water. CONSTITUTION: The fishery block contains: a non-overflow block(200) provided with a non-overflow projection projected upward and retreated, rugged parts formed on both longitudinal ends of a bottom; and an overflow block(300) installed on both sides of the bottom of the non-overflow block(200) and provided with an overflow projection and retreated, rugged parts extended from both longitudinal ends of a bottom.