New studies confirm that fish ladders at dams in the tropics fail to meet their objective of guaranteeing the survival of migratory fish, and in fact, could hasten the extinction of some species. Brazilian scientists found that ladders act as an "ecological trap" attracting schools of fish to poorer environments, and making it even more difficult for them to reproduce.
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Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/fish-ladders-tropics-trip-nowhere
[2] http://admin.indiaenvironmentportal.org.in/category/author/glenn-switkes
[3] http://admin.indiaenvironmentportal.org.in/category/journal/world-rivers-review
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dams
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fisheries
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/riverine-ecology
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/endangered-species
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/migratory-species
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/brazil
