The fish do­or­bell

Every spring, fish swim right through Utrecht, looking for a place to spawn and reproduce. Some swim all the way to Germany. There is a problem, however: they often have to wait a long time at the Weerdsluis lock on the west side of the inner city, as the lock rarely opens in spring. We have come up with a solution: the fish doorbell! An underwater camera has been set up at the lock, and the live feed is streamed to the homepage. If you see a fish, press the digital fish doorbell. The lock operator is sent a signal and can open the lock if there are enough fish. Now you can help fish make it through the canals of Utrecht. 

Fish are essential to the quality of rivers and canals in Utrecht, as they play a role in keeping the water healthy and clean. The fish doorbell helps fish in their annual trek to find a place to spawn and reproduce. We also want to show Utrecht’s residents and visitors how much life there is underwater in the canals. The doorbell also provides information on the species and numbers of fish travelling through Utrecht’s waterways. We can use that information to improve the quality of underwater life in Utrecht.