A fish doorbell (Dutch: visdeurbel) is a system that allows fish to pass through a closed sluice gate through crowdsourced input when fish are present. The Utrecht Visdeurbel uses a livestreamed underwater camera that allows users to press a doorbell button to notify the lock operator that there are fish swimming in the gracht, and that the lock should be opened.[1] It is designed to aid in seasonal fish migration,[2] as an alternative to a physical fish ladder. The whole meaning for this is to save fish from predators as they all find and eat tons of fish from those waters.
^Corbley, Andy (21 April 2021). "Dutch Citizens are Using a "Doorbell" to Help Fish Pass Through the Canal Gate". GoodNewsNetwork. Retrieved 19 January 2022.
^Visdeurbel. "Over de visdeurbel". visdeurbel (in Dutch). Retrieved 2022-07-02.
A fishdoorbell (Dutch: visdeurbel) is a system that allows fish to pass through a closed sluice gate through crowdsourced input when fish are present...
fish passage. Elver pass Glen D. Palmer Dam – Dam in Yorkville, Illinois Fishdoorbell – Crowdsourced fish ladder Fish migration – Movement of fishes...
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