Here’s how you ring the fish doorbell to help fish migrate.
Ring the fish doorbell!
It’s springtime, and fish in the Netherlands are swimming upstream to their spawning grounds. But in the city of Utrecht, a boat lock is keeping the fish from reaching their destinations. That’s where you come in. There’s a camera at the bottom of the boat lock that livestreams the activity there. Watch the livestream, and when you see a fish, ring the doorbell! That will alert the lock operator to open the lock and let the fish swim through.
The less time the fish have to wait at the lock, the more likely they are to survive to their spawning grounds. Otherwise, predators – such as grebes and cormorants – can dip down to dine on the fish as they pile up and wait for the lock to open.
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