Fish ladder

A fish ladder is a structure built around a dam or obstruction in a river that allows migrating fish to bypass it. It consists of a series of steps or pools that mimic natural river conditions, enabling fish to swim upstream safely. Fish ladders help maintain natural fish populations and support ecosystems by providing a passage for species like salmon and trout to reach their spawning grounds, despite man-made barriers. They are essential tools for balancing hydroelectric or water management infrastructure with environmental preservation.