Finland Demolished 3 Dams On Its Last Dead Salmon River — What Salmon Built With Gravel Was Insane
#FinlandDamRemoval #SalmonBuiltWithGravel #InsaneSalmonComeback Finland Demolished 3 Dams On Its Last Dead Salmon River — What Salmon Built With Gravel Was Insane In the autumn of 2021, a team of Finnish biologists stood on a riverbank in South Karelia watching something that should not have been possible. The dam at Kangaskoski, a concrete wall that had drowned this stretch of the Hiitolanjoki River since 1925, had been demolished just weeks earlier. The rubble was barely cleared. The construction equipment was still on site. And in the freshly exposed rapids below, salmon were already building nests. Wild landlocked Atlantic salmon, Finland's most endangered migratory fish, were digging into gravel that had been buried under stagnant reservoir water for nearly a century. Females fanning their tails against stones that had not felt flowing water since before the Second World War. Five spawning nests confirmed before the restoration crews had even finished their work. Nobody predicted this would happen so fast. Subscribe to the Channel here 👉: / @dailydiscoveriesoff SOURCES: Dam Removal Europe. "The Freeing of Hiitolanjoki River – The Movement of Salmon from Ladoga to Headwaters." https://damremoval.eu/freeing-of-hiit... Dam Removal Europe. "Kangaskoski Hydropower Dam, River Hiitolanjoki, Finland." https://damremoval.eu/portfolio/kanga... Dam Removal Europe. "Lahnasenkoski Hydropower Dam, River Hiitolanjoki, Finland." https://damremoval.eu/portfolio/lahna... Dam Removal Europe. "Ritakoski Dam, River Hiitolanjoki, Finland." https://damremoval.eu/portfolio/ritak... Dam Removal Europe. "The Freeing of River Hiitolanjoki, the Largest Dam Removal Project in Finland, has Begun." (September 2021) https://damremoval.eu/freeing-of-rive... Dam Removal Europe. "Celebrating the Second Removal in Hiitolanjoki River." (November 2022) https://damremoval.eu/hiitolanjoki-se... Hiitolanjoki River Official Project Site. "Hiitolanjoki River Restoration." https://hiitolanjoki.fi/en/category/h... The Ecologist (2025). "Wild Landlocked Salmon Return to Finland." https://theecologist.org/2025/oct/21/... UPM Energy. "UPM Supports the Dismantling of the Third Dam on Hiitolanjoki – Landlocked Salmon of Ladoga Will Soon Rise to the Headwaters." https://www.upmenergy.com/articles/en... Belletti, B. et al. (2020). "More Than One Million Barriers Fragment Europe's Rivers." Nature. https://www.nature.com/articles/s4158... WWF (2020). "93% Collapse in Migratory Freshwater Fish Populations in Europe." https://www.wwf.eu/?uNewsID=364693 Rewilding Europe. "European Bison Comeback." [Referenced for European dam removal context] https://rewildingeurope.com/rewilding... National Geographic (2021). "European Rivers Are Stuffed With Barriers, But a Movement Grows to Remove Them." https://www.nationalgeographic.com/en...
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