Visdeurbel (visdeurbel.nl) is a pets resource in Wildlife. The Fish Doorbell (Visdeurbel) is an Utrecht citizen-science project: an underwater livestream of the Weerdsluis lock where viewers ring a virtual doorbell to alert the lock keeper to open the gate for migrating fish in spring. It is an initiative of the Municipality of Utrecht, water board HDSR, and Dutch Wall Fish.
Category: Pets | Animals · Wildlife · Tags: fish-migration, citizen-science, livestream, freshwater, netherlands
Published: 2026-07-05
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