400+ dams could irrevocably harm Amazon ecology — but solutions exist

Mongabay
By Glenn SchererAug 28, 2015, 1:54 pm119 pts
Dams and reservoirs affect fish and other riverine fauna by creating barriers to movement, both upstream and downstream. Many fish in the Amazon migrate thousands of miles as part of their life cycle, a journey that can involve complex patterns of movement through river flows and flood plains. Migrating fish…

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