Reefs built in cooler waters by oysters and other shellfish are the world's most imperilled marine habitats, according to a report.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/shellfish-reefs-more-imperilled-coral
[2] http://admin.indiaenvironmentportal.org.in/category/author/peter-aldhous
[3] http://admin.indiaenvironmentportal.org.in/category/journal/new-scientist
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/marine-ecosystems
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/corals
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/aquaculture
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/invasive-alien-species
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/europe
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/n-c-america
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/australia
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/estuaries