World Atlas of Coral Reefs - Mark Spalding, Mark D Spalding, M.A., Phd, Corinna Ravilious, Edmund Peter Green, United Nations Environment Programme, World Conservation Monitoring Centre - Google Books

http://books.google.de/books?hl=de&lr=&id=cFawvYZlKHoC

Coral reefs are one of the most biologically diverse habitats in the world, host to an extraordinary variety of marine plants and animals. They are also one of the world's most fragile and endangered ecosystems. The growth of mass tourism, combined with…