The central Dutch city of Utrecht has installed a “fish doorbell” that allows denizens of the internet to give a helping hand ...

At the core of this initiative is a simple yet effective idea introduced by ecologist Mark van Heukelum. Mounted at the Weerdsluis lock in Utrecht, an underwater camera captures live video footage of ...

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

When scientists in New Zealand checked the footage from an underwater camera, they expected to see a variety of fish and some sharks, and they did. But, much to their surprise, they had also recorded ...

Dutch's city Utrecht has created 'fish doorbell' on a river lock, which has become quite popular among the locals and on the ...

However, these sites are also very important for the conservation of the fish species that spawn there. With the help of remote underwater video cameras, an international team of scientists has ...