UTRECHT - The Utrecht Fish Doorbell has officially launched its fifth annual season, kicking off on March 3, 2025. The initiative, celebrated for assisting migrating fish, allows residents to notify the lockkeeper when fish are waiting to pass through the historic Weerdsluis. With thousands of fish on the move each spring, the Fish Doorbell proves to be more than just technology; it’s become a community effort to help maintain aquatic ecosystems.
The Fish Doorbell works through innovative technology: there is underwater camera fixed to allow online viewers to watch for fish. When visitors see fish waiting at the sluice, they can press the virtual doorbell at fishdeurbel.nl, sending a signal to the lockkeeper to open the gates. Linda Voortman, Utrecht Alderman, expressed enthusiasm for the project's continued success. "The Fish Doorbell is embraced by Utrechters, with almost three million unique visitors last year helping thousands of fish through the Weerdsluis," she shared.
During the past spring, the Fish Doorbell enabled nearly three million fish to navigate through the sluice, showcasing the community’s engagement with local wildlife. City ecologist Anne Nijs noted the impact of the project, stating, "The sluice is the only way they can go. Previously, we saw them waiting for weeks, which not only slows their migration but also makes them vulnerable to predators. Thanks to the Fish Doorbell, we’re now able to reduce wait times significantly."
The 2025 launch includes exciting new features, branded Fish Doorbell 2.0. This upgrade will provide clearer viewing experiences, as the camera has been repositioned, enabling it to catch more fish activity. Nijs indicated optimism about this enhancement: "We believe we can capture even more fish activity this year due to the new camera setup," adding, “Everyone can witness the annual spectacle of migration live.”
Festivities will occur from March 3 to March 10, featuring the much-loved inflatable Barry the Baars. This playful seven-meter-long inflatable will take center stage at Utrecht Central Station throughout the opening week, promoting the significance of fish migration and clear waters. The presence of Barry serves as both entertainment and educational outreach. Voortman stated, "It's wonderful to see how much the community rallies around this initiative, raising awareness about the necessity of clean water and healthy fish populations.”
The project has not only paved the way for fish but also engaged numerous local residents. The livestream of the Fish Doorbell has become popular, with many finding solace watching the aquatic activity as highlighted by Nijs. “We get fanmail each year. People express how calming the underwater images can be during stressful times,” she remarked, noting even professionals, including those working emergency services, appreciate the calming visuals during demanding shifts.
Over the years, the Fish Doorbell has become recognized worldwide, attracting attention from fish-lovers far beyond Dutch borders. The website recorded over 3.4 million visits last year, demonstrating its growing popularity and the way the initiative unites people around conservation.
“By pressing the Fish Doorbell, we help not only the fish but also the nature and water quality around Utrecht,” explained Gijs Stigter from Hoogheemraadschap. He added, “Vulnerability to barriers has been significantly reduced for migrating fish thanks to projects like this. We continuously work to improve fish passages and make their migration easier.” This commitment to environmental stewardship bolsters Utrecht's reputation as a leader in aquatic sustainability.
With each interaction at the Fish Doorbell, the local community contributes directly to the burgeoning health of Utrecht's waterways. Ongoing collaboration between city officials, local environmental groups, and residents fosters unique initiatives like the Fish Doorbell, bridging technology and nature.
The future looks bright for the Fish Doorbell program as technology and community spirit combine to promote ecological awareness and positivity. It’s not just about helping fish pass through; it’s about cultivating environmental responsibility and engaging the public, showcasing how every small action can contribute to ecological preservation.