Argument: Dams can destroy marine fisheries
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- Debate: Hydroelectric dams - con argument.
Patrick McCully. "Big dams, big trouble". New Internationalists. March 2003 - "Sixty per cent of the length of the world's large river systems are at least moderately or severely fragmented by dams and related withdrawals of water for irrigation...This massive replumbing of the world's rivers is a major reason for the rapid loss of freshwater species. Around a third of freshwater fish species are classified as extinct, endangered or vulnerable. A significant but unknown share of shellfish, amphibians, plants and birds that depend on freshwater habitats are also extinct or at risk."