This blog may help people explore some of the 'hidden' issues involved in certain media treatments of environmental and scientific issues. Using personal digital images, it's also intended to emphasise seasonal (and other) changes in natural history of the Swansea (South Wales) area. The material should help participants in field-based modules and people generally interested in the natural world. The views are wholly those of the author.
Saturday 15 January 2022
Norwegians Would
A small hydroelectric dam was constructed on Norway's Tromsa river in 1916. The dam has now been blown up with TNT (https://www.theguardian.com/environment/2022/jan/14/norwegians-blow-up-hydro-dam-restore-river-fish-health-aoe). The Tromsa dam hadn't been used to generate electricity for the last 50 years. Anglers finally managed to get the dam demolished to free migratory routes for fish. They were especially enthusiastic to allow large, lake-dwelling trout to return from the sea. The saga should remind us that dams (used or unused) can have dramatic effects on the viability of euryhaline fish species.
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