At its core, the Fish Doorbell is a response to the issues faced by aquatic life near river locks. A river lock, like the one at Weerdsluis River in Utrecht, is essential for navigating waterways but ...

The central Dutch city of Utrecht has installed a “fish doorbell” that lets viewers of an online livestream help fish in ...

The Dutch city of Utrecht has installed a “fish doorbell” that lets online viewers alert officials when fish are stuck at a ...

Undated photo of a bream fish at a river lock in the central ... held up as they make their springtime migration to shallow spawning grounds. (Visdeurbel via AP) Show more Show less Undated ...