UTRECHT, Netherlands - A Dutch city has found an unusual way to let the public help its aquatic wildlife—by ringing a "fish doorbell." The city of Utrecht has installed a live-streaming ...

Migrating salmon swim upstream, a journey similar to the fish in Utrecht relying on the city's innovative 'fish doorbell' to reach their spawning grounds.

The idea is simple: An underwater camera at Utrecht’s Weerdsluis lock sends live footage to a website. When somebody watching the site sees a fish, they can click a button that sends a ...

The idea is simple: An underwater camera at Utrecht’s Weerdsluis lock sends live footage to a website. When somebody watching the site sees a fish, they can click a button that sends a ...

The world’s first fish doorbell has just gone live in the Dutch city of Utrecht. ‘Fish doorbell season’ officially began, on 3 March for the fifth year in a row. A camera showing live ...