Fish get an underwater doorbell in Utrecht

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In Utrecht, fish and other swimming creatures have been given their own doorbell to alert humans that they are trying to get to their spawning grounds.

Each spring thousands of fish make the journey upstream in the Vecht river, but have to wait at the gates of the Weerdsluis lock because it doesn’t open often enough to their liking. The Weerdsluis lock was built in the Middle Ages around 1300 to maintain the water level in the canals and has been a national monument since 1992.

To unclog the fish traffic, Utrecht local council and local water authorities have installed a camera that live streams (ha, pun) what the fish are doing while they wait. People in Utrecht who spot a waiting fish can ring the bell which will alert the lock keeper who will then get screenshots of the fish and can open the lock doors to let them through.

The goal is not to open the doors for every single fish, but to make sure the doors open at least once a day. And who doesn’t want to see a live stream (one more!) of fish trying to get somewhere? They are travelling more than most of us at the moment.

Back in 2014 we told you about a fish that could drive its tank around the room.

(Link:dutchnews.nl, Photo: visdeurbel.nl)

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