The European eel is one of the most mysterious species of fish in the world. Their migration and spawning life cycles are one of nature’s greatest unsolved mysteries. Today commercial fishing, pumping plants, dams, weirs, hydropower stations and habitat pollution pose the biggest threat to the eel’s survival, making it a critically endangered species. Watch this video and find out more about tagging research on eel in Belgium. Coordination: Karen Rappé and Pieterjan Verhelst, Animation Steve Bridger, Voice: Bryan Kopta (EN), Production: LifeWatch Belgium, Executive producer: VLIZ Oostende – Belgium.