UTRECHT, Netherlands — In an innovative move to assist the lifecycle of local fish, the city of Utrecht in the Netherlands has implemented a unique “fish doorbell” system at a river lock. This creative setup allows online stream viewers to help in facilitating the fish migration by notifying authorities when fish are waiting to continue their journey to warmer spawning areas.
An underwater camera was installed at the Weerdsluis lock in Utrecht to provide a continuous live feed accessible on a dedicated website. Viewers monitoring the stream can press a button to capture a screenshot of fish they spot. If enough evidence of fish presence is submitted, workers are prompted to open the lock, thus permitting the fish to pass through.
This project, now in its fifth year, has garnered global attention as it merges ecological support with a form of slow television that captivates millions. While the majority of the footage is only a dim green expanse occasionally disturbed by bubbles, there are moments when fish come into view, especially as the waters grow warmer.
Springtime poses a particular challenge as fish such as bream, pike, and bass can become temporarily trapped behind the lock due to rare boat entries, making them vulnerable to predators. The “fish doorbell” provides an environmentally friendly solution to this problem.
The concept was devised by ecologist and concept developer Mark van Heukelum, who expressed his delight at the widespread enthusiasm it has generated. He believes that the blend of environmental awareness, a compelling narrative, and the simplicity of the idea has contributed to its success.
Anna Nijs, another ecologist from Utrecht’s municipality, has witnessed the initiative’s remarkable global reach and was similarly struck by its reception. “We frequently receive fan mail from viewers who enjoy the serene nature of what they call slow TV,” she remarked. More importantly, they value being actively involved in aiding the environment.
In summary, Utrecht’s fish doorbell is a testament to creative conservation efforts, offering a newfound interactive way for people globally to engage with and contribute to local ecological balance.