> So unless there are people watching and alerting them (free labor) the fish don't get to procreate? The lock opens roughly once per day - more often if it's

> So unless there are people watching and alerting them (free labor) the fish don't get to procreate? The lock opens roughly once per day - more often if it's busy. Once the boating season starts, fish will piggyback off of that. It's not this hard to help fish pass a man-made obstacle. They chose to do it this way for public awareness. Leave off the public awareness goal and suddenly there are way easier, less involved methods.