UTRECHT, Netherlands — The imaginative city of Utrecht in central Netherlands has launched an innovative ‘fish doorbell’ at a river lock to aid migrating fish on their journey to spawning areas. This technological addition allows online users to assist in alerting local authorities when fish congregate at the lock.
The system involves an underwater camera set up at the Weerdsluis lock. The camera streams live footage on a dedicated website where observers worldwide can monitor the aquatic life. When viewers spot a fish on the livestream, they can send a screenshot to the organizers by clicking a button. Upon receiving enough notifications about fish presence, a water worker is alerted to open the lock, enabling the fish to continue their journey.
Now entering its fifth year, this initiative has captured the attention of millions globally due to its unique blend of environmental activism and the calming appeal of slow TV. Although much of the footage simply shows a murky green environment, the occasional appearance of fish makes it an engaging experience. The warming of the water as seasons change sees an increase in fish activity.
Without this intervention, native fish species like bream, pike, and bass might face challenges due to the lock remaining closed often in spring, creating bottlenecks where they are easily preyed upon by predators.
The project’s inception can be attributed to ecologist and concept designer Mark van Heukelum, who views the enthusiastic global response as surprising yet gratifying. He remarked that the simple yet profound idea, along with its ethical motive and captivating narrative, has effectively garnered worldwide attention.
Sharing in the surprise over its global appeal, Anna Nijs, an ecologist for the Utrecht municipality, noted the volume of fan mail received from viewers who find the concept to be both relaxing and meaningful. Many appreciate the tranquil viewing experience combined with the opportunity to contribute practically to ecological conservation.
